Sep 10 19:23:24.010 INFO checking exit-future-0.1.2 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 19:23:24.010 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 19:23:24.010 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-4/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 19:23:24.203 INFO blam! e207e9f66eb8f906fdcf85988a6075ae1f4c732fb12e72b42136a331c56fef31
Sep 10 19:23:24.205 INFO running `"docker" "start" "-a" "e207e9f66eb8f906fdcf85988a6075ae1f4c732fb12e72b42136a331c56fef31"`
Sep 10 19:23:25.315 INFO kablam! usermod: no changes
Sep 10 19:23:25.390 INFO kablam!     Checking exit-future v0.1.2 (file:///source)
Sep 10 19:23:26.766 INFO kablam! warning: unused variable: `signal`
Sep 10 19:23:26.766 INFO kablam!    --> src/lib.rs:214:14
Sep 10 19:23:26.766 INFO kablam!     |
Sep 10 19:23:26.766 INFO kablam! 214 |         let (signal, exit) = signal();
Sep 10 19:23:26.766 INFO kablam!     |              ^^^^^^ help: consider using `_signal` instead
Sep 10 19:23:26.766 INFO kablam!     |
Sep 10 19:23:26.766 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 10 19:23:26.766 INFO kablam! 
Sep 10 19:23:26.826 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.49s
Sep 10 19:23:26.826 INFO kablam! su: No module specific data is present
Sep 10 19:23:27.957 INFO running `"docker" "rm" "-f" "e207e9f66eb8f906fdcf85988a6075ae1f4c732fb12e72b42136a331c56fef31"`
Sep 10 19:23:28.112 INFO blam! e207e9f66eb8f906fdcf85988a6075ae1f4c732fb12e72b42136a331c56fef31