[INFO] updating cached repository krixon/knights-tour-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/krixon/knights-tour-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/krixon/knights-tour-rs" "work/ex/beta-1.37-6/sources/1.36.0/gh/krixon/knights-tour-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/krixon/knights-tour-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/krixon/knights-tour-rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/krixon/knights-tour-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/krixon/knights-tour-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9cc5756bff781871a102a765ec74a3ea0f5bc3b6
[INFO] sha for GitHub repo krixon/knights-tour-rs: 9cc5756bff781871a102a765ec74a3ea0f5bc3b6
[INFO] validating manifest of krixon/knights-tour-rs on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of krixon/knights-tour-rs on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing krixon/knights-tour-rs
[INFO] finished frobbing krixon/knights-tour-rs
[INFO] frobbed toml for krixon/knights-tour-rs written to work/ex/beta-1.37-6/sources/1.36.0/gh/krixon/knights-tour-rs/Cargo.toml
[INFO] started frobbing krixon/knights-tour-rs
[INFO] finished frobbing krixon/knights-tour-rs
[INFO] frobbed toml for krixon/knights-tour-rs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/krixon/knights-tour-rs/Cargo.toml
[INFO] crate krixon/knights-tour-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing krixon/knights-tour-rs against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/krixon/knights-tour-rs:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 34d1d9df01fd44de9db6e3359f7047229c1013e6dbb1825252f433204f0186f2
[INFO] running `"docker" "start" "-a" "34d1d9df01fd44de9db6e3359f7047229c1013e6dbb1825252f433204f0186f2"`
[INFO] [stderr]    Compiling knights_tour v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `"docker" "inspect" "34d1d9df01fd44de9db6e3359f7047229c1013e6dbb1825252f433204f0186f2"`
[INFO] running `"docker" "rm" "-f" "34d1d9df01fd44de9db6e3359f7047229c1013e6dbb1825252f433204f0186f2"`
[INFO] [stdout] 34d1d9df01fd44de9db6e3359f7047229c1013e6dbb1825252f433204f0186f2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/krixon/knights-tour-rs:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 14f85847c1a585c286cf83f22f82272c732a580a0a328f2d6eab4f7165de84c2
[INFO] running `"docker" "start" "-a" "14f85847c1a585c286cf83f22f82272c732a580a0a328f2d6eab4f7165de84c2"`
[INFO] [stderr]    Compiling knights_tour v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "14f85847c1a585c286cf83f22f82272c732a580a0a328f2d6eab4f7165de84c2"`
[INFO] running `"docker" "rm" "-f" "14f85847c1a585c286cf83f22f82272c732a580a0a328f2d6eab4f7165de84c2"`
[INFO] [stdout] 14f85847c1a585c286cf83f22f82272c732a580a0a328f2d6eab4f7165de84c2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/krixon/knights-tour-rs:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] e48eafda54e3270fa1567f121e174b16252acc69fae62c472667feb36cbda340
[INFO] running `"docker" "start" "-a" "e48eafda54e3270fa1567f121e174b16252acc69fae62c472667feb36cbda340"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/knights_tour-bbc7c59980f4f70c
[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" "e48eafda54e3270fa1567f121e174b16252acc69fae62c472667feb36cbda340"`
[INFO] running `"docker" "rm" "-f" "e48eafda54e3270fa1567f121e174b16252acc69fae62c472667feb36cbda340"`
[INFO] [stdout] e48eafda54e3270fa1567f121e174b16252acc69fae62c472667feb36cbda340