Sep 06 07:21:17.516 INFO checking exit-future-0.1.2 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 06 07:21:17.516 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 06 07:21:17.516 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-5/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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" "-e" "USER_ID=1000" "-e" "CMD=cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 07:21:17.636 INFO blam! 82c3be71d9feab0466b2075f38a2759200f31a7ebff5b280de853ed9d74762c4
Sep 06 07:21:17.637 INFO running `"docker" "start" "-a" "82c3be71d9feab0466b2075f38a2759200f31a7ebff5b280de853ed9d74762c4"`
Sep 06 07:21:18.466 INFO kablam! usermod: no changes
Sep 06 07:21:18.507 INFO kablam!     Checking exit-future v0.1.2 (file:///source)
Sep 06 07:21:18.959 INFO kablam! warning: unused variable: `signal`
Sep 06 07:21:18.959 INFO kablam!    --> src/lib.rs:214:14
Sep 06 07:21:18.959 INFO kablam!     |
Sep 06 07:21:18.959 INFO kablam! 214 |         let (signal, exit) = signal();
Sep 06 07:21:18.959 INFO kablam!     |              ^^^^^^ help: consider using `_signal` instead
Sep 06 07:21:18.959 INFO kablam!     |
Sep 06 07:21:18.959 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 06 07:21:18.959 INFO kablam! 
Sep 06 07:21:18.993 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
Sep 06 07:21:18.995 INFO kablam! su: No module specific data is present
Sep 06 07:21:19.748 INFO running `"docker" "rm" "-f" "82c3be71d9feab0466b2075f38a2759200f31a7ebff5b280de853ed9d74762c4"`
Sep 06 07:21:19.810 INFO blam! 82c3be71d9feab0466b2075f38a2759200f31a7ebff5b280de853ed9d74762c4