Aug 02 14:32:34.430 INFO checking attr-0.1.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 14:32:34.430 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:32:34.430 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:32:34.430 INFO running `"docker" "create" "-v" "/tmp/crater.3IPkGusqJVyh:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2+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 14:32:34.674 INFO blam! fbfaa23e0bdb6f7976bf7c6074d885a070f31e85a3c45a7fc477779a4fd04a43
Aug 02 14:32:34.676 INFO running `"docker" "start" "-a" "fbfaa23e0bdb6f7976bf7c6074d885a070f31e85a3c45a7fc477779a4fd04a43"`
Aug 02 14:32:35.858 INFO kablam! warning: only one of `license` or `license-file` is necessary
Aug 02 14:32:35.887 INFO kablam!     Checking attr v0.1.0 (file:///source)
Aug 02 14:32:37.916 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:32:37.916 INFO kablam!  --> benches/access_bench.rs:1:1
Aug 02 14:32:37.916 INFO kablam!   |
Aug 02 14:32:37.916 INFO kablam! 1 | #![feature(test)]
Aug 02 14:32:37.916 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 14:32:37.920 INFO kablam! 
Aug 02 14:32:37.921 INFO kablam! error: aborting due to previous error
Aug 02 14:32:37.922 INFO kablam! 
Aug 02 14:32:37.922 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:32:37.976 INFO kablam! error: Could not compile `attr`.
Aug 02 14:32:37.977 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 14:32:38.219 INFO kablam! warning: variable does not need to be mutable
Aug 02 14:32:38.219 INFO kablam!    --> tests/simple.rs:108:9
Aug 02 14:32:38.219 INFO kablam!     |
Aug 02 14:32:38.219 INFO kablam! 108 |     let mut batz = Bar::attrs().batz.get(&mut f);
Aug 02 14:32:38.219 INFO kablam!     |         ----^^^^
Aug 02 14:32:38.219 INFO kablam!     |         |
Aug 02 14:32:38.219 INFO kablam!     |         help: remove this `mut`
Aug 02 14:32:38.219 INFO kablam!     |
Aug 02 14:32:38.219 INFO kablam!     = note: #[warn(unused_mut)] on by default
Aug 02 14:32:38.219 INFO kablam! 
Aug 02 14:32:38.756 INFO kablam! warning: variable does not need to be mutable
Aug 02 14:32:38.757 INFO kablam!    --> tests/nested.rs:252:13
Aug 02 14:32:38.757 INFO kablam!     |
Aug 02 14:32:38.757 INFO kablam! 252 |         let mut x: &mut i32 = foo::Numbers.at(&mut f, 1);
Aug 02 14:32:38.757 INFO kablam!     |             ----^
Aug 02 14:32:38.757 INFO kablam!     |             |
Aug 02 14:32:38.757 INFO kablam!     |             help: remove this `mut`
Aug 02 14:32:38.757 INFO kablam!     |
Aug 02 14:32:38.757 INFO kablam!     = note: #[warn(unused_mut)] on by default
Aug 02 14:32:38.757 INFO kablam! 
Aug 02 14:32:38.836 INFO kablam! error: build failed
Aug 02 14:32:38.840 INFO kablam! su: No module specific data is present
Aug 02 14:32:40.053 INFO running `"docker" "rm" "-f" "fbfaa23e0bdb6f7976bf7c6074d885a070f31e85a3c45a7fc477779a4fd04a43"`
Aug 02 14:32:40.196 INFO blam! fbfaa23e0bdb6f7976bf7c6074d885a070f31e85a3c45a7fc477779a4fd04a43