[INFO] updating cached repository sturose/aoc2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sturose/aoc2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sturose/aoc2018" "work/ex/beta-1.38-1/sources/1.37.0/gh/sturose/aoc2018"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/sturose/aoc2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sturose/aoc2018" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sturose/aoc2018"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sturose/aoc2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0a487a2bc1f1ca9004584fbef46873f626ced202
[INFO] sha for GitHub repo sturose/aoc2018: 0a487a2bc1f1ca9004584fbef46873f626ced202
[INFO] validating manifest of sturose/aoc2018 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sturose/aoc2018 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sturose/aoc2018
[INFO] finished frobbing sturose/aoc2018
[INFO] frobbed toml for sturose/aoc2018 written to work/ex/beta-1.38-1/sources/1.37.0/gh/sturose/aoc2018/Cargo.toml
[INFO] started frobbing sturose/aoc2018
[INFO] finished frobbing sturose/aoc2018
[INFO] frobbed toml for sturose/aoc2018 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sturose/aoc2018/Cargo.toml
[INFO] crate sturose/aoc2018 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing sturose/aoc2018 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sturose/aoc2018:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] ab4ce7bee3d078de2ed04df27efe75730a8d0124879e8a99c55958cb3bd8a87f
[INFO] running `"docker" "start" "-a" "ab4ce7bee3d078de2ed04df27efe75730a8d0124879e8a99c55958cb3bd8a87f"`
[INFO] [stderr]    Compiling aoc2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day3.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |         let mut split1 = line.unwrap();
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "ab4ce7bee3d078de2ed04df27efe75730a8d0124879e8a99c55958cb3bd8a87f"`
[INFO] running `"docker" "rm" "-f" "ab4ce7bee3d078de2ed04df27efe75730a8d0124879e8a99c55958cb3bd8a87f"`
[INFO] [stdout] ab4ce7bee3d078de2ed04df27efe75730a8d0124879e8a99c55958cb3bd8a87f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sturose/aoc2018:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4c379293541d7bd91ef191041a6e407e861e41d045f8e8676a20af766c9d22e0
[INFO] running `"docker" "start" "-a" "4c379293541d7bd91ef191041a6e407e861e41d045f8e8676a20af766c9d22e0"`
[INFO] [stderr]    Compiling aoc2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day3.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |         let mut split1 = line.unwrap();
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "4c379293541d7bd91ef191041a6e407e861e41d045f8e8676a20af766c9d22e0"`
[INFO] running `"docker" "rm" "-f" "4c379293541d7bd91ef191041a6e407e861e41d045f8e8676a20af766c9d22e0"`
[INFO] [stdout] 4c379293541d7bd91ef191041a6e407e861e41d045f8e8676a20af766c9d22e0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sturose/aoc2018:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] e36cf46c7fb6b596a4ff55e80728737fccf42dbdee3649a8d68c4bddaf21921e
[INFO] running `"docker" "start" "-a" "e36cf46c7fb6b596a4ff55e80728737fccf42dbdee3649a8d68c4bddaf21921e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/aoc2018-7bef0a2a3c9a04e7
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e36cf46c7fb6b596a4ff55e80728737fccf42dbdee3649a8d68c4bddaf21921e"`
[INFO] running `"docker" "rm" "-f" "e36cf46c7fb6b596a4ff55e80728737fccf42dbdee3649a8d68c4bddaf21921e"`
[INFO] [stdout] e36cf46c7fb6b596a4ff55e80728737fccf42dbdee3649a8d68c4bddaf21921e