Dec 18 17:36:33.273 INFO checking chess_clock-0.1.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 17:36:33.273 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/chess_clock/0.1.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 17:36:33.644 INFO [stdout] 00aa98c65fbb19f64082cc3b3df8d0de2e75a1960352aecf1e1f6e39f8c81564
Dec 18 17:36:33.646 INFO running `"docker" "start" "-a" "00aa98c65fbb19f64082cc3b3df8d0de2e75a1960352aecf1e1f6e39f8c81564"`
Dec 18 17:36:35.102 INFO [stderr]     Checking chess_clock v0.1.1 (/opt/crater/workdir)
Dec 18 17:36:36.668 INFO [stderr] warning: unused import: `std::thread::sleep`
Dec 18 17:36:36.668 INFO [stderr]   --> src/lib.rs:79:13
Dec 18 17:36:36.668 INFO [stderr]    |
Dec 18 17:36:36.668 INFO [stderr] 79 |         use std::thread::sleep;
Dec 18 17:36:36.668 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^
Dec 18 17:36:36.668 INFO [stderr]    |
Dec 18 17:36:36.668 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 17:36:36.668 INFO [stderr] 
Dec 18 17:36:36.668 INFO [stderr] warning: unused imports: `Either`, `FutureResult`, `self`
Dec 18 17:36:36.668 INFO [stderr]   --> src/lib.rs:83:22
Dec 18 17:36:36.668 INFO [stderr]    |
Dec 18 17:36:36.668 INFO [stderr] 83 |             future::{self, err, ok, Either, FutureResult},
Dec 18 17:36:36.668 INFO [stderr]    |                      ^^^^           ^^^^^^  ^^^^^^^^^^^^
Dec 18 17:36:36.668 INFO [stderr] 
Dec 18 17:36:36.840 INFO [stderr] warning: variable does not need to be mutable
Dec 18 17:36:36.840 INFO [stderr]   --> src/lib.rs:94:13
Dec 18 17:36:36.840 INFO [stderr]    |
Dec 18 17:36:36.840 INFO [stderr] 94 |         let mut clock_master = ChessClock::new(
Dec 18 17:36:36.840 INFO [stderr]    |             ----^^^^^^^^^^^^
Dec 18 17:36:36.840 INFO [stderr]    |             |
Dec 18 17:36:36.840 INFO [stderr]    |             help: remove this `mut`
Dec 18 17:36:36.840 INFO [stderr]    |
Dec 18 17:36:36.840 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 17:36:36.840 INFO [stderr] 
Dec 18 17:36:36.944 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.99s
Dec 18 17:36:37.794 INFO running `"docker" "inspect" "00aa98c65fbb19f64082cc3b3df8d0de2e75a1960352aecf1e1f6e39f8c81564"`
Dec 18 17:36:38.108 INFO running `"docker" "rm" "-f" "00aa98c65fbb19f64082cc3b3df8d0de2e75a1960352aecf1e1f6e39f8c81564"`
Dec 18 17:36:38.404 INFO [stdout] 00aa98c65fbb19f64082cc3b3df8d0de2e75a1960352aecf1e1f6e39f8c81564