[INFO] cloning repository lreynolds18/AOC
[INFO] running `"git" "clone" "--bare" "git://github.com/lreynolds18/AOC.git" "work/cache/sources/gh/lreynolds18/AOC"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/lreynolds18/AOC'...
[INFO] running `"git" "clone" "work/cache/sources/gh/lreynolds18/AOC" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/lreynolds18/AOC"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/lreynolds18/AOC'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lreynolds18/AOC" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/lreynolds18/AOC"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/lreynolds18/AOC'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 441e7b46e56d9b506c2bd51c0c5848efb457d2fe
[INFO] sha for GitHub repo lreynolds18/AOC: 441e7b46e56d9b506c2bd51c0c5848efb457d2fe
[INFO] validating manifest of lreynolds18/AOC on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lreynolds18/AOC on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lreynolds18/AOC
[INFO] finished frobbing lreynolds18/AOC
[INFO] frobbed toml for lreynolds18/AOC written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/lreynolds18/AOC/Cargo.toml
[INFO] started frobbing lreynolds18/AOC
[INFO] finished frobbing lreynolds18/AOC
[INFO] frobbed toml for lreynolds18/AOC written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/lreynolds18/AOC/Cargo.toml
[INFO] crate lreynolds18/AOC has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking lreynolds18/AOC against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-4/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/lreynolds18/AOC:/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" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 89a81e60937b9d4dbfecc11d289464c793b944f32cd034c8151669c7d7ccb9de
[INFO] running `"docker" "start" "-a" "89a81e60937b9d4dbfecc11d289464c793b944f32cd034c8151669c7d7ccb9de"`
[INFO] [stderr]     Checking aoc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/code/day05.rs:6:7
[INFO] [stderr]   |
[INFO] [stderr] 6 |   let mut v: Vec<char> = file_to_string(path).unwrap().chars().collect();
[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/code/day05.rs:26:7
[INFO] [stderr]    |
[INFO] [stderr] 26 |   let mut v: Vec<char> = file_to_string(path).unwrap().chars().collect();
[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/code/day05.rs:6:7
[INFO] [stderr]   |
[INFO] [stderr] 6 |   let mut v: Vec<char> = file_to_string(path).unwrap().chars().collect();
[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/code/day05.rs:26:7
[INFO] [stderr]    |
[INFO] [stderr] 26 |   let mut v: Vec<char> = file_to_string(path).unwrap().chars().collect();
[INFO] [stderr]    |       ----^
[INFO] [stderr]    |       |
[INFO] [stderr]    |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "89a81e60937b9d4dbfecc11d289464c793b944f32cd034c8151669c7d7ccb9de"`
[INFO] running `"docker" "rm" "-f" "89a81e60937b9d4dbfecc11d289464c793b944f32cd034c8151669c7d7ccb9de"`
[INFO] [stdout] 89a81e60937b9d4dbfecc11d289464c793b944f32cd034c8151669c7d7ccb9de