[ci] Roll pinned nightly toolchain

Cargo.toml

@@ -31,7 +31,7 @@ rustdoc-args = ["--cfg", "doc_cfg", "--generate-link-to-definition"]
 [package.metadata.ci]
 # The versions of the stable and nightly compiler toolchains to use in CI.
 pinned-stable = "1.75.0"
-pinned-nightly = "nightly-2024-01-11"
+pinned-nightly = "nightly-2024-01-19"
 
 [package.metadata.playground]
 features = ["__internal_use_only_features_that_work_on_stable"]

tests/ui-nightly/transmute-mut-const.stderr

@@ -21,6 +21,7 @@ error[E0658]: mutable references are not allowed in constants
    |
    = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
    = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
+   = note: this compiler was built on 2024-01-18; consider upgrading it if it is out of date
 
 error[E0015]: cannot call non-const fn `transmute_mut::<'_, '_, [u8; 2], [u8; 2]>` in constants
   --> tests/ui-nightly/transmute-mut-const.rs:20:37

zerocopy-derive/tests/ui-nightly/struct.stderr

@@ -1,27 +1,3 @@
-error: cannot derive TryFromBytes with repr(packed)
-  --> tests/ui-nightly/struct.rs:70:8
-   |
-70 | #[repr(packed)]
-   |        ^^^^^^
-
-error: cannot derive TryFromBytes with repr(packed)
-  --> tests/ui-nightly/struct.rs:76:8
-   |
-76 | #[repr(packed(1))]
-   |        ^^^^^^^^^
-
-error: cannot derive TryFromBytes with repr(packed)
-  --> tests/ui-nightly/struct.rs:82:11
-   |
-82 | #[repr(C, packed)]
-   |           ^^^^^^
-
-error: cannot derive TryFromBytes with repr(packed)
-  --> tests/ui-nightly/struct.rs:88:11
-   |
-88 | #[repr(C, packed(1))]
-   |           ^^^^^^^^^
-
 error: unsupported on generic structs that are not repr(transparent) or repr(packed)
   --> tests/ui-nightly/struct.rs:97:10
    |