Dec 18 08:22:06.495 INFO checking BookOwl/advent2018 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 08:22:06.495 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/BookOwl/advent2018:/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 08:22:06.744 INFO [stdout] 68e6c3342b2d992f1a5d461ee3f67fbe9f2bcad504043e5095a0fd89928f6b00
Dec 18 08:22:06.746 INFO running `"docker" "start" "-a" "68e6c3342b2d992f1a5d461ee3f67fbe9f2bcad504043e5095a0fd89928f6b00"`
Dec 18 08:22:07.837 INFO [stderr]     Checking advent2018 v0.1.0 (/opt/crater/workdir)
Dec 18 08:22:08.336 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:22:08.336 INFO [stderr]   --> src/bin/day2.rs:48:9
Dec 18 08:22:08.336 INFO [stderr]    |
Dec 18 08:22:08.336 INFO [stderr] 48 |     let mut words = words?;
Dec 18 08:22:08.336 INFO [stderr]    |         ----^^^^^
Dec 18 08:22:08.336 INFO [stderr]    |         |
Dec 18 08:22:08.336 INFO [stderr]    |         help: remove this `mut`
Dec 18 08:22:08.336 INFO [stderr]    |
Dec 18 08:22:08.336 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 08:22:08.336 INFO [stderr] 
Dec 18 08:22:08.496 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:22:08.496 INFO [stderr]   --> src/bin/day2.rs:48:9
Dec 18 08:22:08.496 INFO [stderr]    |
Dec 18 08:22:08.496 INFO [stderr] 48 |     let mut words = words?;
Dec 18 08:22:08.496 INFO [stderr]    |         ----^^^^^
Dec 18 08:22:08.496 INFO [stderr]    |         |
Dec 18 08:22:08.496 INFO [stderr]    |         help: remove this `mut`
Dec 18 08:22:08.496 INFO [stderr]    |
Dec 18 08:22:08.496 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 08:22:08.496 INFO [stderr] 
Dec 18 08:22:08.748 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:22:08.748 INFO [stderr]   --> src/bin/day4.rs:63:21
Dec 18 08:22:08.748 INFO [stderr]    |
Dec 18 08:22:08.748 INFO [stderr] 63 |                 let mut map = sleep_times.entry(gaurd_id).or_insert_with(HashMap::new);
Dec 18 08:22:08.748 INFO [stderr]    |                     ----^^^
Dec 18 08:22:08.748 INFO [stderr]    |                     |
Dec 18 08:22:08.748 INFO [stderr]    |                     help: remove this `mut`
Dec 18 08:22:08.748 INFO [stderr]    |
Dec 18 08:22:08.748 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 08:22:08.748 INFO [stderr] 
Dec 18 08:22:08.754 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:22:08.754 INFO [stderr]    --> src/bin/day4.rs:105:17
Dec 18 08:22:08.754 INFO [stderr]     |
Dec 18 08:22:08.754 INFO [stderr] 105 |             let mut x = minutes.entry(i).or_insert((0, 0)); // (gaurd_id, number_of_times_asleep)
Dec 18 08:22:08.754 INFO [stderr]     |                 ----^
Dec 18 08:22:08.754 INFO [stderr]     |                 |
Dec 18 08:22:08.754 INFO [stderr]     |                 help: remove this `mut`
Dec 18 08:22:08.754 INFO [stderr] 
Dec 18 08:22:08.950 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:22:08.950 INFO [stderr]   --> src/bin/day4.rs:63:21
Dec 18 08:22:08.950 INFO [stderr]    |
Dec 18 08:22:08.950 INFO [stderr] 63 |                 let mut map = sleep_times.entry(gaurd_id).or_insert_with(HashMap::new);
Dec 18 08:22:08.950 INFO [stderr]    |                     ----^^^
Dec 18 08:22:08.950 INFO [stderr]    |                     |
Dec 18 08:22:08.950 INFO [stderr]    |                     help: remove this `mut`
Dec 18 08:22:08.950 INFO [stderr]    |
Dec 18 08:22:08.950 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 08:22:08.950 INFO [stderr] 
Dec 18 08:22:08.958 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:22:08.958 INFO [stderr]    --> src/bin/day4.rs:105:17
Dec 18 08:22:08.958 INFO [stderr]     |
Dec 18 08:22:08.958 INFO [stderr] 105 |             let mut x = minutes.entry(i).or_insert((0, 0)); // (gaurd_id, number_of_times_asleep)
Dec 18 08:22:08.958 INFO [stderr]     |                 ----^
Dec 18 08:22:08.958 INFO [stderr]     |                 |
Dec 18 08:22:08.958 INFO [stderr]     |                 help: remove this `mut`
Dec 18 08:22:08.958 INFO [stderr] 
Dec 18 08:22:08.981 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
Dec 18 08:22:09.185 INFO running `"docker" "inspect" "68e6c3342b2d992f1a5d461ee3f67fbe9f2bcad504043e5095a0fd89928f6b00"`
Dec 18 08:22:09.249 INFO running `"docker" "rm" "-f" "68e6c3342b2d992f1a5d461ee3f67fbe9f2bcad504043e5095a0fd89928f6b00"`
Dec 18 08:22:09.352 INFO [stdout] 68e6c3342b2d992f1a5d461ee3f67fbe9f2bcad504043e5095a0fd89928f6b00