Aug 02 14:33:56.549 INFO checking atomic_refcell-0.1.1 against 1.27.2 for lazy_static-1
Aug 02 14:33:56.549 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:33:56.549 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:33:56.549 INFO running `"docker" "create" "-v" "/tmp/crater.6corUHGB4rSj:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2:/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 14:33:57.025 INFO blam! 4603d1fa838ddc3ebe2e5ec1ca8755cc2ad471ad4239a9740b49e72cb973e182
Aug 02 14:33:57.026 INFO running `"docker" "start" "-a" "4603d1fa838ddc3ebe2e5ec1ca8755cc2ad471ad4239a9740b49e72cb973e182"`
Aug 02 14:34:01.241 INFO kablam!     Checking atomic_refcell v0.1.1 (file:///source)
Aug 02 14:34:02.229 INFO kablam! warning: unnecessary `unsafe` block
Aug 02 14:34:02.229 INFO kablam!   --> src/lib.rs:78:9
Aug 02 14:34:02.229 INFO kablam!    |
Aug 02 14:34:02.229 INFO kablam! 78 |         unsafe { self.value.into_inner() }
Aug 02 14:34:02.229 INFO kablam!    |         ^^^^^^ unnecessary `unsafe` block
Aug 02 14:34:02.229 INFO kablam!    |
Aug 02 14:34:02.230 INFO kablam!    = note: #[warn(unused_unsafe)] on by default
Aug 02 14:34:02.230 INFO kablam! 
Aug 02 14:34:02.356 INFO kablam! warning: unnecessary `unsafe` block
Aug 02 14:34:02.356 INFO kablam!   --> src/lib.rs:78:9
Aug 02 14:34:02.356 INFO kablam!    |
Aug 02 14:34:02.357 INFO kablam! 78 |         unsafe { self.value.into_inner() }
Aug 02 14:34:02.357 INFO kablam!    |         ^^^^^^ unnecessary `unsafe` block
Aug 02 14:34:02.357 INFO kablam!    |
Aug 02 14:34:02.357 INFO kablam!    = note: #[warn(unused_unsafe)] on by default
Aug 02 14:34:02.357 INFO kablam! 
Aug 02 14:34:02.815 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:34:02.815 INFO kablam!  --> benches/basic.rs:1:1
Aug 02 14:34:02.815 INFO kablam!   |
Aug 02 14:34:02.815 INFO kablam! 1 | #![feature(test)]
Aug 02 14:34:02.815 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 14:34:02.815 INFO kablam! 
Aug 02 14:34:02.816 INFO kablam! error: aborting due to previous error
Aug 02 14:34:02.816 INFO kablam! 
Aug 02 14:34:02.816 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:34:02.837 INFO kablam! error: Could not compile `atomic_refcell`.
Aug 02 14:34:02.837 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 14:34:03.133 INFO kablam! error: build failed
Aug 02 14:34:03.135 INFO kablam! su: No module specific data is present
Aug 02 14:34:07.544 INFO running `"docker" "rm" "-f" "4603d1fa838ddc3ebe2e5ec1ca8755cc2ad471ad4239a9740b49e72cb973e182"`
Aug 02 14:34:07.686 INFO blam! 4603d1fa838ddc3ebe2e5ec1ca8755cc2ad471ad4239a9740b49e72cb973e182