Aug 01 21:37:22.772 INFO checking spiral-0.1.9 against 1.27.2+tmplazy for lazy_static-1
Aug 01 21:37:22.772 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:37:22.772 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:37:22.772 INFO running `"docker" "create" "-v" "/tmp/crater.RW5p76aaZvyx:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2+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 01 21:37:23.049 INFO blam! 7eee7a0e07d709df2c624a39304a95e8b5d0688f1015ec5c6af907594679ff95
Aug 01 21:37:23.050 INFO running `"docker" "start" "-a" "7eee7a0e07d709df2c624a39304a95e8b5d0688f1015ec5c6af907594679ff95"`
Aug 01 21:37:24.258 INFO kablam!     Checking spiral v0.1.9 (file:///source)
Aug 01 21:37:25.329 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:37:25.329 INFO kablam!  --> benches/benchmarks.rs:1:1
Aug 01 21:37:25.329 INFO kablam!   |
Aug 01 21:37:25.329 INFO kablam! 1 | #![feature(test)]
Aug 01 21:37:25.329 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 21:37:25.330 INFO kablam! 
Aug 01 21:37:25.330 INFO kablam! error: aborting due to previous error
Aug 01 21:37:25.330 INFO kablam! 
Aug 01 21:37:25.330 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 21:37:25.336 INFO kablam! error: Could not compile `spiral`.
Aug 01 21:37:25.336 INFO kablam! 
Aug 01 21:37:25.336 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 21:37:25.337 INFO kablam! su: No module specific data is present
Aug 01 21:37:25.895 INFO running `"docker" "rm" "-f" "7eee7a0e07d709df2c624a39304a95e8b5d0688f1015ec5c6af907594679ff95"`
Aug 01 21:37:26.062 INFO blam! 7eee7a0e07d709df2c624a39304a95e8b5d0688f1015ec5c6af907594679ff95