rustfix automatic fixes fail due to using wrong import for custom derive macro

[jimmycuadra]

Problem

rustfix (via cargo fix) fails to apply automatic updates on one of my crates. It incorrectly changes serde's Deserialize and Serialize custom derives from:

#[derive(Deserialize, Serialize)]

to:

#[derive(crate::Deserialize, Serialize)]

when it should be:

#[derive(serde_json::Deserialize, serde_json::Serialize)]

Changing it to the latter results in the crate compiling along with rustfix's changes.

Steps

1. Check out ruma-events at commit 6240c25.
2. Run cargo fix --edition.
3. See output:

$ cargo fix --edition
    Checking ruma-events v0.11.0 (/ruma-events)
warning: failed to automatically apply fixes suggested by rustc to crate `ruma_events`

after fixes were automatically applied the compiler reported errors within these files:

  * src/macros.rs

This likely indicates a bug in either rustc or cargo itself,
and we would appreciate a bug report! You're likely to see
a number of compiler warnings after this message which cargo
attempted to fix but failed. If you could open an issue at
https://github.com/rust-lang/cargo/issues
quoting the full output of this command we'd be very appreciative!

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/macros.rs:81:32
   |
81 |         #[derive(Clone, Debug, Deserialize, Serialize)]
   |                                ^^^^^^^^^^^ help: use `crate`: `crate::Deserialize`
   |
note: lint level defined here
  --> src/lib.rs:101:9
   |
101| #![deny(warnings)]
   |         ^^^^^^^^
   = note: #[warn(absolute_paths_not_starting_with_crate)] implied by #[warn(warnings)]
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/macros.rs:81:32
   |
81 |         #[derive(Clone, Debug, Deserialize, Serialize)]
   |                                ^^^^^^^^^^^ help: use `crate`: `crate::Deserialize`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/all.rs:4:5
  |
4 | use call::answer::AnswerEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::call::answer::AnswerEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/all.rs:5:5
  |
5 | use call::candidates::CandidatesEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::call::candidates::CandidatesEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/all.rs:6:5
  |
6 | use call::hangup::HangupEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::call::hangup::HangupEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/all.rs:7:5
  |
7 | use call::invite::InviteEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::call::invite::InviteEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/all.rs:8:5
  |
8 | use direct::DirectEvent;
  |     ^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::direct::DirectEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/all.rs:9:5
  |
9 | use presence::PresenceEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::presence::PresenceEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:10:5
   |
10 | use receipt::ReceiptEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::receipt::ReceiptEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:11:5
   |
11 | use room::aliases::AliasesEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::aliases::AliasesEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:12:5
   |
12 | use room::avatar::AvatarEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::avatar::AvatarEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:13:5
   |
13 | use room::canonical_alias::CanonicalAliasEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::canonical_alias::CanonicalAliasEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:14:5
   |
14 | use room::create::CreateEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::create::CreateEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:15:5
   |
15 | use room::guest_access::GuestAccessEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::guest_access::GuestAccessEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:16:5
   |
16 | use room::history_visibility::HistoryVisibilityEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::history_visibility::HistoryVisibilityEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:17:5
   |
17 | use room::join_rules::JoinRulesEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::join_rules::JoinRulesEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:18:5
   |
18 | use room::member::MemberEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::member::MemberEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:19:5
   |
19 | use room::message::MessageEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::message::MessageEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:20:5
   |
20 | use room::name::NameEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::name::NameEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:21:5
   |
21 | use room::pinned_events::PinnedEventsEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::pinned_events::PinnedEventsEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:22:5
   |
22 | use room::power_levels::PowerLevelsEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::power_levels::PowerLevelsEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:23:5
   |
23 | use room::redaction::RedactionEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::redaction::RedactionEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:24:5
   |
24 | use room::third_party_invite::ThirdPartyInviteEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::third_party_invite::ThirdPartyInviteEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:25:5
   |
25 | use room::topic::TopicEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::topic::TopicEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:26:5
   |
26 | use tag::TagEvent;
   |     ^^^^^^^^^^^^^ help: use `crate`: `crate::tag::TagEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:27:5
   |
27 | use typing::TypingEvent;
   |     ^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::typing::TypingEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:28:5
   |
28 | use {CustomEvent, CustomRoomEvent, CustomStateEvent, EventType};
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::{CustomEvent, CustomRoomEvent, CustomStateEvent, EventType}`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/only.rs:4:5
  |
4 | use call::answer::AnswerEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::call::answer::AnswerEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/only.rs:5:5
  |
5 | use call::candidates::CandidatesEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::call::candidates::CandidatesEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/only.rs:6:5
  |
6 | use call::hangup::HangupEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::call::hangup::HangupEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/only.rs:7:5
  |
7 | use call::invite::InviteEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::call::invite::InviteEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/only.rs:8:5
  |
8 | use direct::DirectEvent;
  |     ^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::direct::DirectEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/only.rs:9:5
  |
9 | use presence::PresenceEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::presence::PresenceEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/only.rs:10:5
   |
10 | use receipt::ReceiptEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::receipt::ReceiptEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/only.rs:11:5
   |
11 | use room::message::MessageEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::message::MessageEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/only.rs:12:5
   |
12 | use room::redaction::RedactionEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::redaction::RedactionEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/only.rs:13:5
   |
13 | use tag::TagEvent;
   |     ^^^^^^^^^^^^^ help: use `crate`: `crate::tag::TagEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/only.rs:14:5
   |
14 | use typing::TypingEvent;
   |     ^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::typing::TypingEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/only.rs:15:5
   |
15 | use {CustomEvent, CustomRoomEvent, EventType};
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::{CustomEvent, CustomRoomEvent, EventType}`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/macros.rs:36:32
   |
36 |         #[derive(Clone, Debug, Deserialize, Serialize)]
   |                                ^^^^^^^^^^^ help: use `crate`: `crate::Deserialize`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
   --> src/macros.rs:155:32
    |
155 |         #[derive(Clone, Debug, Deserialize, Serialize)]
    |                                ^^^^^^^^^^^ help: use `crate`: `crate::Deserialize`
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
    = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/room/member.rs:6:5
  |
6 | use stripped::StrippedState;
  |     ^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::stripped::StrippedState`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/room/power_levels.rs:7:5
  |
7 | use EventType;
  |     ^^^^^^^^^ help: use `crate`: `crate::EventType`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:12:5
   |
12 | use room::aliases::AliasesEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::aliases::AliasesEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:13:5
   |
13 | use room::avatar::AvatarEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::avatar::AvatarEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:14:5
   |
14 | use room::canonical_alias::CanonicalAliasEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::canonical_alias::CanonicalAliasEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:15:5
   |
15 | use room::create::CreateEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::create::CreateEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:16:5
   |
16 | use room::guest_access::GuestAccessEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::guest_access::GuestAccessEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:17:5
   |
17 | use room::history_visibility::HistoryVisibilityEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::history_visibility::HistoryVisibilityEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:18:5
   |
18 | use room::join_rules::JoinRulesEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::join_rules::JoinRulesEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:19:5
   |
19 | use room::member::MemberEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::member::MemberEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:20:5
   |
20 | use room::name::NameEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::name::NameEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:21:5
   |
21 | use room::power_levels::PowerLevelsEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::power_levels::PowerLevelsEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:22:5
   |
22 | use room::third_party_invite::ThirdPartyInviteEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::third_party_invite::ThirdPartyInviteEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:23:5
   |
23 | use room::topic::TopicEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::topic::TopicEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:24:5
   |
24 | use EventType;
   |     ^^^^^^^^^ help: use `crate`: `crate::EventType`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/macros.rs:81:32
   |
81 |         #[derive(Clone, Debug, Deserialize, Serialize)]
   |                                ^^^^^^^^^^^ help: use `crate`: `crate::Deserialize`
   |
note: lint level defined here
  --> src/lib.rs:101:9
   |
101| #![deny(warnings)]
   |         ^^^^^^^^
   = note: #[warn(absolute_paths_not_starting_with_crate)] implied by #[warn(warnings)]
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/macros.rs:81:32
   |
81 |         #[derive(Clone, Debug, Deserialize, Serialize)]
   |                                ^^^^^^^^^^^ help: use `crate`: `crate::Deserialize`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/all.rs:4:5
  |
4 | use call::answer::AnswerEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::call::answer::AnswerEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/all.rs:5:5
  |
5 | use call::candidates::CandidatesEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::call::candidates::CandidatesEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/all.rs:6:5
  |
6 | use call::hangup::HangupEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::call::hangup::HangupEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/all.rs:7:5
  |
7 | use call::invite::InviteEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::call::invite::InviteEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/all.rs:8:5
  |
8 | use direct::DirectEvent;
  |     ^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::direct::DirectEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/all.rs:9:5
  |
9 | use presence::PresenceEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::presence::PresenceEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:10:5
   |
10 | use receipt::ReceiptEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::receipt::ReceiptEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:11:5
   |
11 | use room::aliases::AliasesEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::aliases::AliasesEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:12:5
   |
12 | use room::avatar::AvatarEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::avatar::AvatarEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:13:5
   |
13 | use room::canonical_alias::CanonicalAliasEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::canonical_alias::CanonicalAliasEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:14:5
   |
14 | use room::create::CreateEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::create::CreateEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:15:5
   |
15 | use room::guest_access::GuestAccessEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::guest_access::GuestAccessEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:16:5
   |
16 | use room::history_visibility::HistoryVisibilityEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::history_visibility::HistoryVisibilityEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:17:5
   |
17 | use room::join_rules::JoinRulesEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::join_rules::JoinRulesEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:18:5
   |
18 | use room::member::MemberEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::member::MemberEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:19:5
   |
19 | use room::message::MessageEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::message::MessageEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:20:5
   |
20 | use room::name::NameEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::name::NameEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:21:5
   |
21 | use room::pinned_events::PinnedEventsEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::pinned_events::PinnedEventsEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:22:5
   |
22 | use room::power_levels::PowerLevelsEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::power_levels::PowerLevelsEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:23:5
   |
23 | use room::redaction::RedactionEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::redaction::RedactionEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:24:5
   |
24 | use room::third_party_invite::ThirdPartyInviteEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::third_party_invite::ThirdPartyInviteEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:25:5
   |
25 | use room::topic::TopicEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::topic::TopicEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:26:5
   |
26 | use tag::TagEvent;
   |     ^^^^^^^^^^^^^ help: use `crate`: `crate::tag::TagEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:27:5
   |
27 | use typing::TypingEvent;
   |     ^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::typing::TypingEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/all.rs:28:5
   |
28 | use {CustomEvent, CustomRoomEvent, CustomStateEvent, EventType};
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::{CustomEvent, CustomRoomEvent, CustomStateEvent, EventType}`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/only.rs:4:5
  |
4 | use call::answer::AnswerEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::call::answer::AnswerEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/only.rs:5:5
  |
5 | use call::candidates::CandidatesEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::call::candidates::CandidatesEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/only.rs:6:5
  |
6 | use call::hangup::HangupEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::call::hangup::HangupEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/only.rs:7:5
  |
7 | use call::invite::InviteEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::call::invite::InviteEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/only.rs:8:5
  |
8 | use direct::DirectEvent;
  |     ^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::direct::DirectEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/collections/only.rs:9:5
  |
9 | use presence::PresenceEvent;
  |     ^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::presence::PresenceEvent`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/only.rs:10:5
   |
10 | use receipt::ReceiptEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::receipt::ReceiptEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/only.rs:11:5
   |
11 | use room::message::MessageEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::message::MessageEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/only.rs:12:5
   |
12 | use room::redaction::RedactionEvent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::redaction::RedactionEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/only.rs:13:5
   |
13 | use tag::TagEvent;
   |     ^^^^^^^^^^^^^ help: use `crate`: `crate::tag::TagEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/only.rs:14:5
   |
14 | use typing::TypingEvent;
   |     ^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::typing::TypingEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/collections/only.rs:15:5
   |
15 | use {CustomEvent, CustomRoomEvent, EventType};
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::{CustomEvent, CustomRoomEvent, EventType}`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/macros.rs:36:32
   |
36 |         #[derive(Clone, Debug, Deserialize, Serialize)]
   |                                ^^^^^^^^^^^ help: use `crate`: `crate::Deserialize`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/direct.rs:26:9
   |
26 |     use collections;
   |         ^^^^^^^^^^^ help: use `crate`: `crate::collections`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/direct.rs:27:9
   |
27 |     use direct::{DirectEvent, DirectEventContent};
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::direct::{DirectEvent, DirectEventContent}`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
   --> src/macros.rs:155:32
    |
155 |         #[derive(Clone, Debug, Deserialize, Serialize)]
    |                                ^^^^^^^^^^^ help: use `crate`: `crate::Deserialize`
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
    = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/room/member.rs:6:5
  |
6 | use stripped::StrippedState;
  |     ^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::stripped::StrippedState`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/room/pinned_events.rs:22:9
   |
22 |     use room::pinned_events::{PinnedEventsContent, PinnedEventsEvent};
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::pinned_events::{PinnedEventsContent, PinnedEventsEvent}`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/room/pinned_events.rs:23:9
   |
23 |     use Event;
   |         ^^^^^ help: use `crate`: `crate::Event`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/room/pinned_events.rs:24:9
   |
24 |     use EventType;
   |         ^^^^^^^^^ help: use `crate`: `crate::EventType`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/room/pinned_events.rs:25:9
   |
25 |     use RoomEvent;
   |         ^^^^^^^^^ help: use `crate`: `crate::RoomEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/room/pinned_events.rs:26:9
   |
26 |     use StateEvent;
   |         ^^^^^^^^^^ help: use `crate`: `crate::StateEvent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
 --> src/room/power_levels.rs:7:5
  |
7 | use EventType;
  |     ^^^^^^^^^ help: use `crate`: `crate::EventType`
  |
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
  = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:12:5
   |
12 | use room::aliases::AliasesEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::aliases::AliasesEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:13:5
   |
13 | use room::avatar::AvatarEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::avatar::AvatarEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:14:5
   |
14 | use room::canonical_alias::CanonicalAliasEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::canonical_alias::CanonicalAliasEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:15:5
   |
15 | use room::create::CreateEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::create::CreateEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:16:5
   |
16 | use room::guest_access::GuestAccessEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::guest_access::GuestAccessEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:17:5
   |
17 | use room::history_visibility::HistoryVisibilityEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::history_visibility::HistoryVisibilityEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:18:5
   |
18 | use room::join_rules::JoinRulesEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::join_rules::JoinRulesEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:19:5
   |
19 | use room::member::MemberEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::member::MemberEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:20:5
   |
20 | use room::name::NameEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::name::NameEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:21:5
   |
21 | use room::power_levels::PowerLevelsEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::power_levels::PowerLevelsEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:22:5
   |
22 | use room::third_party_invite::ThirdPartyInviteEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::third_party_invite::ThirdPartyInviteEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:23:5
   |
23 | use room::topic::TopicEventContent;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::topic::TopicEventContent`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
  --> src/stripped.rs:24:5
   |
24 | use EventType;
   |     ^^^^^^^^^ help: use `crate`: `crate::EventType`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
   = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
   --> src/stripped.rs:260:9
    |
260 |     use room::join_rules::JoinRule;
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::join_rules::JoinRule`
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
    = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
   --> src/stripped.rs:261:9
    |
261 |     use room::topic::TopicEventContent;
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `crate`: `crate::room::topic::TopicEventContent`
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
    = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

warning: absolute paths must start with `self`, `super`, `crate`, or an external crate name in the 2018 edition
   --> src/stripped.rs:263:9
    |
263 |     use EventType;
    |         ^^^^^^^^^ help: use `crate`: `crate::EventType`
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
    = note: for more information, see issue #53130 <https://github.com/rust-lang/rust/issues/53130>

    Finished dev [unoptimized + debuginfo] target(s) in 6.33s

Notes

Output of cargo version: cargo 1.32.0-nightly (5e85ba1 2018-12-02)
OS: macOS 10.14.1

According to the reply to this comment by killercup this might be more appropriate in rust-lang/rust, but I'm being conservative and filing it here since this is what the cargo output suggests.

[ehuss]

Here is the most minimal reproduction I can come up with:

#![warn(rust_2018_compatibility)]
extern crate serde;
#[macro_use]
extern crate serde_derive;

use serde::{Deserialize, Deserializer};

macro_rules! event {
    (
        pub struct $name:ident() {}
    ) => {
        #[derive(Deserialize)]
        pub struct $name {
            pub event_type: $crate::EventType,
        }
    }
}

pub enum EventType {}

event! {
    pub struct CustomEvent() {}
}

impl<'de> Deserialize<'de> for EventType {
    fn deserialize<D>(_deserializer: D) -> Result<Self, D::Error>
    where
        D: Deserializer<'de>,
    {
        unimplemented!()
    }
}

It seems that $crate in serde_derive is confusing things somehow. cc rust-lang/rust#56622 which seems sort-of related, maybe @dtolnay has some insight?

[alexcrichton]

Thanks for the report @jimmycuadra and the reduction @ehuss! I've moved this over to rust-lang/rust#56683