[INFO] updating cached repository davery22/advent-of-code-2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/davery22/advent-of-code-2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/davery22/advent-of-code-2018" "work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/davery22/advent-of-code-2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/davery22/advent-of-code-2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/davery22/advent-of-code-2018" "work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/davery22/advent-of-code-2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/davery22/advent-of-code-2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fadadb61b1c6e15c376c414a96427bb1695cb60f
[INFO] sha for GitHub repo davery22/advent-of-code-2018: fadadb61b1c6e15c376c414a96427bb1695cb60f
[INFO] validating manifest of davery22/advent-of-code-2018 on toolchain master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of davery22/advent-of-code-2018 on toolchain try#097e26225c5cc28d3042ad4c80eac7c488f78ee7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+097e26225c5cc28d3042ad4c80eac7c488f78ee7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing davery22/advent-of-code-2018
[INFO] finished frobbing davery22/advent-of-code-2018
[INFO] frobbed toml for davery22/advent-of-code-2018 written to work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/davery22/advent-of-code-2018/Cargo.toml
[INFO] started frobbing davery22/advent-of-code-2018
[INFO] finished frobbing davery22/advent-of-code-2018
[INFO] frobbed toml for davery22/advent-of-code-2018 written to work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/davery22/advent-of-code-2018/Cargo.toml
[INFO] crate davery22/advent-of-code-2018 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+097e26225c5cc28d3042ad4c80eac7c488f78ee7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking davery22/advent-of-code-2018 against master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4 for pr-60932
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60932/worker-6/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/davery22/advent-of-code-2018:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3c2a706034b36cf1a456d1635cc9b0c0220522ca8ee0b0d3f5847024b1f41ac8
[INFO] running `"docker" "start" "-a" "3c2a706034b36cf1a456d1635cc9b0c0220522ca8ee0b0d3f5847024b1f41ac8"`
[INFO] [stderr]     Checking advent-of-code-2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/day04.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day04.rs:54:17
[INFO] [stderr]    |
[INFO] [stderr] 54 |             let mut sleeps_per_minute = sleeps_per_minute_by_guard_id.entry(guard_id).or_insert(vec![0_usize; 60]);
[INFO] [stderr]    |                 ----^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day04.rs:54:17
[INFO] [stderr]    |
[INFO] [stderr] 54 |             let mut sleeps_per_minute = sleeps_per_minute_by_guard_id.entry(guard_id).or_insert(vec![0_usize; 60]);
[INFO] [stderr]    |                 ----^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `"docker" "inspect" "3c2a706034b36cf1a456d1635cc9b0c0220522ca8ee0b0d3f5847024b1f41ac8"`
[INFO] running `"docker" "rm" "-f" "3c2a706034b36cf1a456d1635cc9b0c0220522ca8ee0b0d3f5847024b1f41ac8"`
[INFO] [stdout] 3c2a706034b36cf1a456d1635cc9b0c0220522ca8ee0b0d3f5847024b1f41ac8