[INFO] updating cached repository y011d4/Polyomino-Solver-in-Rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/y011d4/Polyomino-Solver-in-Rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/y011d4/Polyomino-Solver-in-Rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/y011d4/Polyomino-Solver-in-Rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/y011d4/Polyomino-Solver-in-Rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/y011d4/Polyomino-Solver-in-Rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/y011d4/Polyomino-Solver-in-Rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/y011d4/Polyomino-Solver-in-Rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] da213f8f620d6aef241c0ecc2c4a191a7c646486
[INFO] sha for GitHub repo y011d4/Polyomino-Solver-in-Rust: da213f8f620d6aef241c0ecc2c4a191a7c646486
[INFO] validating manifest of y011d4/Polyomino-Solver-in-Rust 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 y011d4/Polyomino-Solver-in-Rust 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 y011d4/Polyomino-Solver-in-Rust
[INFO] finished frobbing y011d4/Polyomino-Solver-in-Rust
[INFO] frobbed toml for y011d4/Polyomino-Solver-in-Rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/y011d4/Polyomino-Solver-in-Rust/Cargo.toml
[INFO] started frobbing y011d4/Polyomino-Solver-in-Rust
[INFO] finished frobbing y011d4/Polyomino-Solver-in-Rust
[INFO] frobbed toml for y011d4/Polyomino-Solver-in-Rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/y011d4/Polyomino-Solver-in-Rust/Cargo.toml
[INFO] crate y011d4/Polyomino-Solver-in-Rust 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 y011d4/Polyomino-Solver-in-Rust 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-2/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/y011d4/Polyomino-Solver-in-Rust:/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] 50158e8303e7f8903a55788bf9b2662b258733a1a5fa70f9b55465761184c860
[INFO] running `"docker" "start" "-a" "50158e8303e7f8903a55788bf9b2662b258733a1a5fa70f9b55465761184c860"`
[INFO] [stderr]    Compiling polyomino v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `"docker" "inspect" "50158e8303e7f8903a55788bf9b2662b258733a1a5fa70f9b55465761184c860"`
[INFO] running `"docker" "rm" "-f" "50158e8303e7f8903a55788bf9b2662b258733a1a5fa70f9b55465761184c860"`
[INFO] [stdout] 50158e8303e7f8903a55788bf9b2662b258733a1a5fa70f9b55465761184c860
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/y011d4/Polyomino-Solver-in-Rust:/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] 76948fa3cb1e31b8fd6aecfd7cd8f1d44e90292a2a09b0026707b3572930c8a5
[INFO] running `"docker" "start" "-a" "76948fa3cb1e31b8fd6aecfd7cd8f1d44e90292a2a09b0026707b3572930c8a5"`
[INFO] [stderr]    Compiling polyomino v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "76948fa3cb1e31b8fd6aecfd7cd8f1d44e90292a2a09b0026707b3572930c8a5"`
[INFO] running `"docker" "rm" "-f" "76948fa3cb1e31b8fd6aecfd7cd8f1d44e90292a2a09b0026707b3572930c8a5"`
[INFO] [stdout] 76948fa3cb1e31b8fd6aecfd7cd8f1d44e90292a2a09b0026707b3572930c8a5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/y011d4/Polyomino-Solver-in-Rust:/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] 39cb7363a4227a2650b0103c9fd4b00568907db173435129838b1a5449b48805
[INFO] running `"docker" "start" "-a" "39cb7363a4227a2650b0103c9fd4b00568907db173435129838b1a5449b48805"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/polyomino-2e872179874519d9
[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" "39cb7363a4227a2650b0103c9fd4b00568907db173435129838b1a5449b48805"`
[INFO] running `"docker" "rm" "-f" "39cb7363a4227a2650b0103c9fd4b00568907db173435129838b1a5449b48805"`
[INFO] [stdout] 39cb7363a4227a2650b0103c9fd4b00568907db173435129838b1a5449b48805