[INFO] updating cached repository https://github.com/StreakyCobra/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] 2d23f981d7e7ec6261874bfde8f09cbaa5d4fc26
[INFO] checking StreakyCobra/advent-of-code-2018 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStreakyCobra%2Fadvent-of-code-2018" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/StreakyCobra/advent-of-code-2018 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/StreakyCobra/advent-of-code-2018
[INFO] finished tweaking git repo https://github.com/StreakyCobra/advent-of-code-2018
[INFO] tweaked toml for git repo https://github.com/StreakyCobra/advent-of-code-2018 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/StreakyCobra/advent-of-code-2018 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "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] 0c474960b6f162952e82d0418c626f27274a5c57105dfd1c1111ba6b3616b0bc
[INFO] running `"docker" "start" "-a" "0c474960b6f162952e82d0418c626f27274a5c57105dfd1c1111ba6b3616b0bc"`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking nom v4.1.1
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking advent-of-code-2018 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/prob_04.rs:125:25
[INFO] [stderr]     |
[INFO] [stderr] 125 |                     let mut minutes = [0; 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/prob_04.rs:128:21
[INFO] [stderr]     |
[INFO] [stderr] 128 |                 let mut minutes = stats.get_mut(&record.guard).unwrap();
[INFO] [stderr]     |                     ----^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/prob_06.rs:77:17
[INFO] [stderr]    |
[INFO] [stderr] 77 |             let mut total: usize = centroids
[INFO] [stderr]    |                 ----^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/prob_04.rs:125:25
[INFO] [stderr]     |
[INFO] [stderr] 125 |                     let mut minutes = [0; 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/prob_04.rs:128:21
[INFO] [stderr]     |
[INFO] [stderr] 128 |                 let mut minutes = stats.get_mut(&record.guard).unwrap();
[INFO] [stderr]     |                     ----^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/prob_06.rs:77:17
[INFO] [stderr]    |
[INFO] [stderr] 77 |             let mut total: usize = centroids
[INFO] [stderr]    |                 ----^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.30s
[INFO] running `"docker" "inspect" "0c474960b6f162952e82d0418c626f27274a5c57105dfd1c1111ba6b3616b0bc"`
[INFO] running `"docker" "rm" "-f" "0c474960b6f162952e82d0418c626f27274a5c57105dfd1c1111ba6b3616b0bc"`
[INFO] [stdout] 0c474960b6f162952e82d0418c626f27274a5c57105dfd1c1111ba6b3616b0bc