[INFO] updating cached repository BrianLee608/adventofcode2017rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/BrianLee608/adventofcode2017rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/BrianLee608/adventofcode2017rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/BrianLee608/adventofcode2017rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/BrianLee608/adventofcode2017rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/BrianLee608/adventofcode2017rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/BrianLee608/adventofcode2017rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/BrianLee608/adventofcode2017rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a47b55f3ce8b0112177be640939ce88187b9dbd5
[INFO] sha for GitHub repo BrianLee608/adventofcode2017rust: a47b55f3ce8b0112177be640939ce88187b9dbd5
[INFO] validating manifest of BrianLee608/adventofcode2017rust 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 BrianLee608/adventofcode2017rust 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 BrianLee608/adventofcode2017rust
[INFO] finished frobbing BrianLee608/adventofcode2017rust
[INFO] frobbed toml for BrianLee608/adventofcode2017rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/BrianLee608/adventofcode2017rust/Cargo.toml
[INFO] started frobbing BrianLee608/adventofcode2017rust
[INFO] finished frobbing BrianLee608/adventofcode2017rust
[INFO] frobbed toml for BrianLee608/adventofcode2017rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/BrianLee608/adventofcode2017rust/Cargo.toml
[INFO] crate BrianLee608/adventofcode2017rust 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 BrianLee608/adventofcode2017rust against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/BrianLee608/adventofcode2017rust:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] f0567a784a670df842bb03eb9e53056dccbc40e06eb43770fc8ade73cc5d1143
[INFO] running `"docker" "start" "-a" "f0567a784a670df842bb03eb9e53056dccbc40e06eb43770fc8ade73cc5d1143"`
[INFO] [stderr]    Compiling adventofcode2017 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `min_max_diff`
[INFO] [stderr]  --> src/day2.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn min_max_diff(line: &str) -> u32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `"docker" "inspect" "f0567a784a670df842bb03eb9e53056dccbc40e06eb43770fc8ade73cc5d1143"`
[INFO] running `"docker" "rm" "-f" "f0567a784a670df842bb03eb9e53056dccbc40e06eb43770fc8ade73cc5d1143"`
[INFO] [stdout] f0567a784a670df842bb03eb9e53056dccbc40e06eb43770fc8ade73cc5d1143
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/BrianLee608/adventofcode2017rust:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] ff57c2af0c478560bee70f264d8f2eed2464f0a1d75b07673c6fab84014c61a8
[INFO] running `"docker" "start" "-a" "ff57c2af0c478560bee70f264d8f2eed2464f0a1d75b07673c6fab84014c61a8"`
[INFO] [stderr]    Compiling adventofcode2017 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `min_max_diff`
[INFO] [stderr]  --> src/day2.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn min_max_diff(line: &str) -> u32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "ff57c2af0c478560bee70f264d8f2eed2464f0a1d75b07673c6fab84014c61a8"`
[INFO] running `"docker" "rm" "-f" "ff57c2af0c478560bee70f264d8f2eed2464f0a1d75b07673c6fab84014c61a8"`
[INFO] [stdout] ff57c2af0c478560bee70f264d8f2eed2464f0a1d75b07673c6fab84014c61a8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/BrianLee608/adventofcode2017rust:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] a712ddebd62a68777f928c6e403f63405506c2f630e2f7b45930de99e8019cd2
[INFO] running `"docker" "start" "-a" "a712ddebd62a68777f928c6e403f63405506c2f630e2f7b45930de99e8019cd2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/adventofcode2017-293617cafa78ccc6
[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" "a712ddebd62a68777f928c6e403f63405506c2f630e2f7b45930de99e8019cd2"`
[INFO] running `"docker" "rm" "-f" "a712ddebd62a68777f928c6e403f63405506c2f630e2f7b45930de99e8019cd2"`
[INFO] [stdout] a712ddebd62a68777f928c6e403f63405506c2f630e2f7b45930de99e8019cd2