[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-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/ralexstokes/advent-of-code-2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/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-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/ralexstokes/advent-of-code-2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/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#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ralexstokes/advent-of-code-2018 on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-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-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/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-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/ralexstokes/advent-of-code-2018/Cargo.toml
[INFO] crate ralexstokes/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" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ralexstokes/advent-of-code-2018 against master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-4/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/ralexstokes/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" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3818c9b4373f19f041b41b2c49ea4cc0e759ec585d7610db94c5c09253c95677
[INFO] running `"docker" "start" "-a" "3818c9b4373f19f041b41b2c49ea4cc0e759ec585d7610db94c5c09253c95677"`
[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 prefixing with an underscore: `_sleeps`
[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 prefixing with an underscore: `_sleeps`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `EventRE` should have an upper case name
[INFO] [stderr]   --> src/day_4.rs:99:28
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 static ref EventRE: Regex = Regex::new(r"^Guard #(\d+) begins shift$").unwrap();
[INFO] [stderr]    |                            ^^^^^^^ help: convert the identifier to upper case: `EVENT_RE`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "3818c9b4373f19f041b41b2c49ea4cc0e759ec585d7610db94c5c09253c95677"`
[INFO] running `"docker" "rm" "-f" "3818c9b4373f19f041b41b2c49ea4cc0e759ec585d7610db94c5c09253c95677"`
[INFO] [stdout] 3818c9b4373f19f041b41b2c49ea4cc0e759ec585d7610db94c5c09253c95677