ICE: 'rustc' panicked at 'Box<Any>', src/librustc_errors/lib.rs:931:9

[rtyler]

This may have a duplicate, since there are similar panics already reported, but this is on a different line number.

The compilation log and source code are listed below

pub mod client;
pub mod msg;

use std::collections::HashMap;
use std::sync::Arc;
use tokio::sync::broadcast::{channel, Receiver, Sender};

/**
 * A channel is named and typed with the type of messages it should be carrying
 */
struct Channel {
    name: String,
    send: Sender<Message>,
    recv: Receiver<Message>,
}

struct Message {}

impl Channel {
    fn send(&self, msg: Message) {}
    fn recv(&self, msg: Message) {}
}

struct Bus {
    /**
     * Channels are named and can implement a number of different types. This should
     * allow the Bus to handle different channels with different message payloads
     * while still taking advantage of compile-time checks
     */
    channels: HashMap<String, Channel>,
}

#[cfg(test)]
mod tests {
    use super::*;
}

compile.log

[Centril]

Script started on 2020-01-19 10:59:24-08:00 [TERM="tmux-256color" TTY="/dev/pts/11" COLUMNS="127" LINES="51"]
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�[0m�[0m�[1m�[32m   Compiling�[0m otto-eventbus v0.1.0 (/home/tyler/source/git/otto/eventbus)
�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[K�[0m�[0m�[1m�[32m     Running�[0m `rustc --edition=2018 --crate-name otto_eventbus eventbus/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 -C metadata=0d23839fb1da08c1 -C extra-filename=-0d23839fb1da08c1 --out-dir /home/tyler/source/git/otto/target/debug/deps -C incremental=/home/tyler/source/git/otto/target/debug/incremental -L dependency=/home/tyler/source/git/otto/target/debug/deps --extern chrono=/home/tyler/source/git/otto/target/debug/deps/libchrono-d52802bffc8a82b9.rmeta --extern clap=/home/tyler/source/git/otto/target/debug/deps/libclap-4771d1530caa7736.rmeta --extern config=/home/tyler/source/git/otto/target/debug/deps/libconfig-3ec895d80071174d.rmeta --extern futures=/home/tyler/source/git/otto/target/debug/deps/libfutures-f8d371ca64b9b3ea.rmeta --extern handlebars=/home/tyler/source/git/otto/target/debug/deps/libhandlebars-9c39757c14b838fa.rmeta --extern log=/home/tyler/source/git/otto/target/debug/deps/liblog-79b125b8f2be9618.rmeta --extern pretty_env_logger=/home/tyler/source/git/otto/target/debug/deps/libpretty_env_logger-00a4f0333544d957.rmeta --extern rust_embed=/home/tyler/source/git/otto/target/debug/deps/librust_embed-2606570b3ffd432e.rmeta --extern rustyline=/home/tyler/source/git/otto/target/debug/deps/librustyline-6ad46db1b00fa316.rmeta --extern serde=/home/tyler/source/git/otto/target/debug/deps/libserde-a8e99c52ea927756.rmeta --extern serde_json=/home/tyler/source/git/otto/target/debug/deps/libserde_json-2aecfbb27590c90b.rmeta --extern tokio=/home/tyler/source/git/otto/target/debug/deps/libtokio-a5aa0c1f2c9a1372.rmeta --extern warp=/home/tyler/source/git/otto/target/debug/deps/libwarp-8b1a4c7665c21343.rmeta -C link-arg=-fuse-ld=lld`
�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[K�[0m�[1m�[38;5;9merror: internal compiler error�[0m�[0m�[1m: src/librustc/dep_graph/graph.rs:680: DepNode Hir(otto_eventbus[fe62]::Channel[0]::send[0]) should have been pre-allocated but wasn't.�[0m

�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[Kthread 'rustc' panicked at 'Box<Any>', src/librustc_errors/lib.rs:931:9
stack backtrace:
�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[K   0: backtrace::backtrace::libunwind::trace
             at /cargo/registry/src/jackfan.us.kg-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88
   1: backtrace::backtrace::trace_unsynchronized
             at /cargo/registry/src/jackfan.us.kg-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66
   2: std::sys_common::backtrace::_print_fmt
             at src/libstd/sys_common/backtrace.rs:77
   3: <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt
             at src/libstd/sys_common/backtrace.rs:61
�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[K   4: core::fmt::write
             at src/libcore/fmt/mod.rs:1028
   5: std::io::Write::write_fmt
             at src/libstd/io/mod.rs:1412
   6: std::sys_common::backtrace::_print
             at src/libstd/sys_common/backtrace.rs:65
   7: std::sys_common::backtrace::print
             at src/libstd/sys_common/backtrace.rs:50
   8: std::panicking::default_hook::{{closure}}
             at src/libstd/panicking.rs:188
   9: std::panicking::default_hook
             at src/libstd/panicking.rs:205
�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[K  10: rustc_driver::report_ice
�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[K  11: <alloc::boxed::Box<F> as core::ops::function::Fn<A>>::call
             at /rustc/73528e339aae0f17a15ffa49a8ac608f50c6cf14/src/liballoc/boxed.rs:956
�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[K  12: proc_macro::bridge::client::<impl proc_macro::bridge::Bridge>::enter::{{closure}}::{{closure}}
             at /rustc/73528e339aae0f17a15ffa49a8ac608f50c6cf14/src/libproc_macro/bridge/client.rs:305
  13: std::panicking::rust_panic_with_hook
             at src/libstd/panicking.rs:468
  14: std::panicking::begin_panic
  15: rustc_errors::HandlerInner::bug
  16: rustc_errors::Handler::bug
�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[K  17: rustc::util::bug::opt_span_bug_fmt::{{closure}}
  18: rustc::ty::context::tls::with_opt::{{closure}}
  19: rustc::ty::context::tls::with_context_opt
  20: rustc::ty::context::tls::with_opt
  21: rustc::util::bug::opt_span_bug_fmt
  22: rustc::util::bug::bug_fmt
  23: rustc::dep_graph::graph::DepGraph::try_mark_previous_green
  24: rustc::dep_graph::graph::DepGraph::try_mark_green
  25: rustc::dep_graph::graph::DepGraph::try_mark_green_and_read
  26: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt>::get_query
  27: <rustc_typeck::outlives::implicit_infer::InferVisitor as rustc::hir::itemlikevisit::ItemLikeVisitor>::visit_item
  28: rustc::hir::Crate::visit_all_item_likes
  29: rustc_typeck::outlives::inferred_outlives_crate
�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[K  30: rustc::ty::query::__query_compute::inferred_outlives_crate
  31: rustc::dep_graph::graph::DepGraph::with_task_impl
  32: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt>::get_query
  33: rustc_typeck::outlives::inferred_outlives_of
  34: rustc::ty::query::<impl rustc::ty::query::config::QueryAccessors for rustc::ty::query::queries::inferred_outlives_of>::compute
  35: rustc::dep_graph::graph::DepGraph::with_task_impl
�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[K  36: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt>::force_query
  37: rustc::ty::query::plumbing::force_from_dep_node
  38: rustc::dep_graph::graph::DepGraph::try_mark_previous_green
  39: rustc::dep_graph::graph::DepGraph::try_mark_previous_green
  40: rustc::dep_graph::graph::DepGraph::try_mark_green
  41: rustc::dep_graph::graph::DepGraph::try_mark_green_and_read
  42: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt>::get_query
  43: <rustc_typeck::collect::CollectItemTypesVisitor as rustc::hir::intravisit::Visitor>::visit_item
  44: rustc::hir::map::Map::visit_item_likes_in_module
  45: rustc_typeck::collect::collect_mod_item_types
  46: rustc::ty::query::__query_compute::collect_mod_item_types
  47: rustc::ty::query::<impl rustc::ty::query::config::QueryAccessors for rustc::ty::query::queries::collect_mod_item_types>::compute
  48: rustc::dep_graph::graph::DepGraph::with_task_impl
  49: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt>::get_query
  50: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt>::ensure_query
  51: rustc_typeck::check_crate::{{closure}}::{{closure}}
  52: rustc::util::common::time
  53: rustc_typeck::check_crate
  54: rustc_interface::passes::analysis
�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[K  55: rustc::ty::query::__query_compute::analysis
  56: rustc::dep_graph::graph::DepGraph::with_task_impl
  57: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt>::get_query
  58: rustc_interface::passes::BoxedGlobalCtxt::access::{{closure}}
  59: rustc_interface::passes::create_global_ctxt::{{closure}}
  60: rustc_interface::passes::BoxedGlobalCtxt::enter
  61: rustc_interface::interface::run_compiler_in_existing_thread_pool
  62: std::thread::local::LocalKey<T>::with
  63: scoped_tls::ScopedKey<T>::set
  64: syntax::with_globals
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[Knote: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports

note: rustc 1.40.0 (73528e339 2019-12-16) running on x86_64-unknown-linux-gnu

note: compiler flags: -C debuginfo=2 -C incremental -C link-arg=-fuse-ld=lld --crate-type lib

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[K#0 [type_of] processing `Channel::send`
#1 [inferred_outlives_crate] computing the inferred outlives predicates for items in this crate
�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[K#2 [inferred_outlives_of] processing `Channel`
#3 [predicates_of] processing `Channel`
�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[K#4 [collect_mod_item_types] collecting item types in top-level module
#5 [analysis] running analysis passes on this crate
�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[Kend of query stack
�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[K�[0m�[1m�[38;5;9merror�[0m�[0m�[1m: aborting due to previous error�[0m

�[0m�[0m�[1m�[36m    Building�[0m [====================================================>  ] 230/235: otto-eventbus                                
�[K�[0m�[0m�[1m�[31merror�[0m�[1m:�[0m could not compile `otto-eventbus`.

Caused by:
  process didn't exit successfully: `rustc --edition=2018 --crate-name otto_eventbus eventbus/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 -C metadata=0d23839fb1da08c1 -C extra-filename=-0d23839fb1da08c1 --out-dir /home/tyler/source/git/otto/target/debug/deps -C incremental=/home/tyler/source/git/otto/target/debug/incremental -L dependency=/home/tyler/source/git/otto/target/debug/deps --extern chrono=/home/tyler/source/git/otto/target/debug/deps/libchrono-d52802bffc8a82b9.rmeta --extern clap=/home/tyler/source/git/otto/target/debug/deps/libclap-4771d1530caa7736.rmeta --extern config=/home/tyler/source/git/otto/target/debug/deps/libconfig-3ec895d80071174d.rmeta --extern futures=/home/tyler/source/git/otto/target/debug/deps/libfutures-f8d371ca64b9b3ea.rmeta --extern handlebars=/home/tyler/source/git/otto/target/debug/deps/libhandlebars-9c39757c14b838fa.rmeta --extern log=/home/tyler/source/git/otto/target/debug/deps/liblog-79b125b8f2be9618.rmeta --extern pretty_env_logger=/home/tyler/source/git/otto/target/debug/deps/libpretty_env_logger-00a4f0333544d957.rmeta --extern rust_embed=/home/tyler/source/git/otto/target/debug/deps/librust_embed-2606570b3ffd432e.rmeta --extern rustyline=/home/tyler/source/git/otto/target/debug/deps/librustyline-6ad46db1b00fa316.rmeta --extern serde=/home/tyler/source/git/otto/target/debug/deps/libserde-a8e99c52ea927756.rmeta --extern serde_json=/home/tyler/source/git/otto/target/debug/deps/libserde_json-2aecfbb27590c90b.rmeta --extern tokio=/home/tyler/source/git/otto/target/debug/deps/libtokio-a5aa0c1f2c9a1372.rmeta --extern warp=/home/tyler/source/git/otto/target/debug/deps/libwarp-8b1a4c7665c21343.rmeta -C link-arg=-fuse-ld=lld` (exit code: 101)
�k..urce/git/otto�\�[0m�[27m�[24m�[J�[01;31m➜  �[36motto�[00m �[01;34mgit:(�[31mwarp-speed�[34m) �[33m✗�[00m �[K�[?1h�=�[?2004h�[?2004l


Script done on 2020-01-19 10:59:33-08:00 [COMMAND_EXIT_CODE="101"]

[Centril]

Does this reproduce with the beta or nightly compiler?

Also, if possible, a self-contained reproducer without tokio (i.e. an example that fits in the playground) would be helpful towards fixing the ICE.

[hellow554]

@rtyler can you provide the sources for the complete project? Do you have a git repository which we could check out and reproduce the bug?

[rtyler]

@hellow554 This project is open source, and I checkpointed for this issue.

A git clone https://git.brokenco.de/rtyler/otto will get the repo for you

Unfortunately I was not able to take the time for a larger diversion into inspection of this issue.

[hellow554]

I need some further explanation here @rtyler
I tried stable, beta and nightly, none of them crashed. I used cargo build.
What is your compiler (rustc --version) and what do you need to crash it (e.g. do I need to do something beforehand?). Also, does cargo clean solve your problem?

[rtyler]

@hellow554 the version is 1.40.0, and full clean did appear to correct the issue (unfortunately). I'm not sure what more can be done since the issue isn't terribly reproducible.

I would have thought my Cargo.lock would have made this more reliably reproducible, but alas 😾

[hellow554]

Seems to be an incremental issue then? @Centril what do you think?

[pnkfelix]

This I believe will be resolved by PR #68289.

triage: P-high, removing nomination label, assigning to self.

[pnkfelix]

Since PR #68289 has landed, and there isn't enough information here to reproduce the bug as originally described (and thus I cannot test to see whether it is actually fixed, or create a regression test), I'm going to close this issue under the assumption that PR #68289 did fix the problem here.