Aug 02 03:09:04.556 INFO checking oncemutex-0.1.1 against 1.27.2+tmplazy for lazy_static-1
Aug 02 03:09:04.556 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 03:09:04.556 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 03:09:04.556 INFO running `"docker" "create" "-v" "/tmp/crater.WwEXNMSi8mwe:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2+tmplazy:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 02 03:09:04.802 INFO blam! 4bfea7904f1be90123510717788c670ed9559695a316f6f5137b4f88c631f8d8
Aug 02 03:09:04.804 INFO running `"docker" "start" "-a" "4bfea7904f1be90123510717788c670ed9559695a316f6f5137b4f88c631f8d8"`
Aug 02 03:09:06.072 INFO kablam!     Checking oncemutex v0.1.1 (file:///source)
Aug 02 03:09:06.684 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 03:09:06.684 INFO kablam!  --> src/lib.rs:2:19
Aug 02 03:09:06.684 INFO kablam!   |
Aug 02 03:09:06.684 INFO kablam! 2 | #![cfg_attr(test, feature(test))]
Aug 02 03:09:06.684 INFO kablam!   |                   ^^^^^^^^^^^^^^
Aug 02 03:09:06.685 INFO kablam! 
Aug 02 03:09:06.687 INFO kablam! error: aborting due to previous error
Aug 02 03:09:06.687 INFO kablam! 
Aug 02 03:09:06.687 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 03:09:06.705 INFO kablam! error: Could not compile `oncemutex`.
Aug 02 03:09:06.705 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 03:09:06.915 INFO kablam! error: unnecessary `unsafe` block
Aug 02 03:09:06.915 INFO kablam!   --> src/lib.rs:86:9
Aug 02 03:09:06.915 INFO kablam!    |
Aug 02 03:09:06.915 INFO kablam! 86 |         unsafe { self.data.into_inner() }
Aug 02 03:09:06.915 INFO kablam!    |         ^^^^^^ unnecessary `unsafe` block
Aug 02 03:09:06.916 INFO kablam!    |
Aug 02 03:09:06.916 INFO kablam! note: lint level defined here
Aug 02 03:09:06.916 INFO kablam!   --> src/lib.rs:1:23
Aug 02 03:09:06.916 INFO kablam!    |
Aug 02 03:09:06.916 INFO kablam! 1  | #![deny(missing_docs, warnings)]
Aug 02 03:09:06.916 INFO kablam!    |                       ^^^^^^^^
Aug 02 03:09:06.916 INFO kablam!    = note: #[deny(unused_unsafe)] implied by #[deny(warnings)]
Aug 02 03:09:06.916 INFO kablam! 
Aug 02 03:09:06.916 INFO kablam! error: aborting due to previous error
Aug 02 03:09:06.916 INFO kablam! 
Aug 02 03:09:06.928 INFO kablam! error: Could not compile `oncemutex`.
Aug 02 03:09:06.928 INFO kablam! 
Aug 02 03:09:06.928 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 03:09:06.930 INFO kablam! su: No module specific data is present
Aug 02 03:09:07.494 INFO running `"docker" "rm" "-f" "4bfea7904f1be90123510717788c670ed9559695a316f6f5137b4f88c631f8d8"`
Aug 02 03:09:07.651 INFO blam! 4bfea7904f1be90123510717788c670ed9559695a316f6f5137b4f88c631f8d8