Aug 02 10:55:18.555 INFO checking elp-2.0.0 against 1.27.2 for lazy_static-1
Aug 02 10:55:18.555 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:55:18.555 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:55:18.555 INFO running `"docker" "create" "-v" "/tmp/crater.VxoNSBQNdlkm:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2:/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 10:55:18.865 INFO blam! 5d0c5fc91b3548d1e280a15f7c877a1d144306714d8eff98854ab925ff837c05
Aug 02 10:55:18.870 INFO running `"docker" "start" "-a" "5d0c5fc91b3548d1e280a15f7c877a1d144306714d8eff98854ab925ff837c05"`
Aug 02 10:55:20.142 INFO kablam!     Checking elp v2.0.0 (file:///source)
Aug 02 10:55:23.122 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:55:23.122 INFO kablam!  --> benches/benchmarks.rs:1:1
Aug 02 10:55:23.122 INFO kablam!   |
Aug 02 10:55:23.122 INFO kablam! 1 | #![feature(test)]
Aug 02 10:55:23.122 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 10:55:23.122 INFO kablam! 
Aug 02 10:55:23.122 INFO kablam! error: aborting due to previous error
Aug 02 10:55:23.122 INFO kablam! 
Aug 02 10:55:23.122 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:55:23.132 INFO kablam! error: Could not compile `elp`.
Aug 02 10:55:23.132 INFO kablam! 
Aug 02 10:55:23.132 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 10:55:23.134 INFO kablam! su: No module specific data is present
Aug 02 10:55:23.794 INFO running `"docker" "rm" "-f" "5d0c5fc91b3548d1e280a15f7c877a1d144306714d8eff98854ab925ff837c05"`
Aug 02 10:55:23.950 INFO blam! 5d0c5fc91b3548d1e280a15f7c877a1d144306714d8eff98854ab925ff837c05