[INFO] updating cached repository ralexstokes/advent-of-code-2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ralexstokes/advent-of-code-2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ralexstokes/advent-of-code-2018" "work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/ralexstokes/advent-of-code-2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/ralexstokes/advent-of-code-2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ralexstokes/advent-of-code-2018" "work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/ralexstokes/advent-of-code-2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/ralexstokes/advent-of-code-2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 848f96d222733573f97e7bdeb9cea7036f2c3e20
[INFO] sha for GitHub repo ralexstokes/advent-of-code-2018: 848f96d222733573f97e7bdeb9cea7036f2c3e20
[INFO] validating manifest of ralexstokes/advent-of-code-2018 on toolchain master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ralexstokes/advent-of-code-2018 on toolchain try#bad365140e1e8233b42b21af70a407f14ce5fec5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ralexstokes/advent-of-code-2018
[INFO] finished frobbing ralexstokes/advent-of-code-2018
[INFO] frobbed toml for ralexstokes/advent-of-code-2018 written to work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/ralexstokes/advent-of-code-2018/Cargo.toml
[INFO] started frobbing ralexstokes/advent-of-code-2018
[INFO] finished frobbing ralexstokes/advent-of-code-2018
[INFO] frobbed toml for ralexstokes/advent-of-code-2018 written to work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/ralexstokes/advent-of-code-2018/Cargo.toml
[INFO] crate ralexstokes/advent-of-code-2018 has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ralexstokes/advent-of-code-2018 against master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980 for pr-56896
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56896/worker-3/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/ralexstokes/advent-of-code-2018:/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" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d7a393f15d11c392ceaf36b0a0c7d57f8d550c72231709408567201ef3e46aef
[INFO] running `"docker" "start" "-a" "d7a393f15d11c392ceaf36b0a0c7d57f8d550c72231709408567201ef3e46aef"`
[INFO] [stderr]     Checking advent_of_code v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `sleeps`
[INFO] [stderr]    --> src/day_4.rs:146:29
[INFO] [stderr]     |
[INFO] [stderr] 146 |                         let sleeps = current_guard.minutes_asleep.len();
[INFO] [stderr]     |                             ^^^^^^ help: consider using `_sleeps` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sleeps`
[INFO] [stderr]    --> src/day_4.rs:174:17
[INFO] [stderr]     |
[INFO] [stderr] 174 |             let sleeps = current_guard.minutes_asleep.len();
[INFO] [stderr]     |                 ^^^^^^ help: consider using `_sleeps` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `"docker" "inspect" "d7a393f15d11c392ceaf36b0a0c7d57f8d550c72231709408567201ef3e46aef"`
[INFO] running `"docker" "rm" "-f" "d7a393f15d11c392ceaf36b0a0c7d57f8d550c72231709408567201ef3e46aef"`
[INFO] [stdout] d7a393f15d11c392ceaf36b0a0c7d57f8d550c72231709408567201ef3e46aef