[INFO] updating cached repository https://github.com/ralexstokes/advent-of-code-2018
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 848f96d222733573f97e7bdeb9cea7036f2c3e20
[INFO] checking ralexstokes/advent-of-code-2018 against master#446e5e57b667c841ba3ebb4b41b44fb98bd3af4b for pr-65294
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fralexstokes%2Fadvent-of-code-2018" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ralexstokes/advent-of-code-2018 on toolchain 446e5e57b667c841ba3ebb4b41b44fb98bd3af4b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+446e5e57b667c841ba3ebb4b41b44fb98bd3af4b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ralexstokes/advent-of-code-2018
[INFO] finished tweaking git repo https://github.com/ralexstokes/advent-of-code-2018
[INFO] tweaked toml for git repo https://github.com/ralexstokes/advent-of-code-2018 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ralexstokes/advent-of-code-2018 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+446e5e57b667c841ba3ebb4b41b44fb98bd3af4b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+446e5e57b667c841ba3ebb4b41b44fb98bd3af4b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c95c1e31b16e8818b99371646ba7a72423291735c30cb3883ac9e1619c072093
[INFO] running `"docker" "start" "-a" "c95c1e31b16e8818b99371646ba7a72423291735c30cb3883ac9e1619c072093"`
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]     Checking advent_of_code v0.1.0 (/opt/rustwide/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]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.90s
[INFO] running `"docker" "inspect" "c95c1e31b16e8818b99371646ba7a72423291735c30cb3883ac9e1619c072093"`
[INFO] running `"docker" "rm" "-f" "c95c1e31b16e8818b99371646ba7a72423291735c30cb3883ac9e1619c072093"`
[INFO] [stdout] c95c1e31b16e8818b99371646ba7a72423291735c30cb3883ac9e1619c072093