[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/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/y011d4/Polyomino-Solver-in-Rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/y011d4/Polyomino-Solver-in-Rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/y011d4/Polyomino-Solver-in-Rust" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/y011d4/Polyomino-Solver-in-Rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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 master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of y011d4/Polyomino-Solver-in-Rust on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "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/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/y011d4/Polyomino-Solver-in-Rust/Cargo.toml
[INFO] crate y011d4/Polyomino-Solver-in-Rust has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing y011d4/Polyomino-Solver-in-Rust against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-2/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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=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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 59abd274ec519f077bb7dc03e63f0610b1ba9c37e359fb7c8187fcbf38ef571f
[INFO] running `"docker" "start" "-a" "59abd274ec519f077bb7dc03e63f0610b1ba9c37e359fb7c8187fcbf38ef571f"`
[INFO] [stderr]    Compiling polyomino v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `"docker" "inspect" "59abd274ec519f077bb7dc03e63f0610b1ba9c37e359fb7c8187fcbf38ef571f"`
[INFO] running `"docker" "rm" "-f" "59abd274ec519f077bb7dc03e63f0610b1ba9c37e359fb7c8187fcbf38ef571f"`
[INFO] [stdout] 59abd274ec519f077bb7dc03e63f0610b1ba9c37e359fb7c8187fcbf38ef571f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-2/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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=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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 14de3c4a90f4b6800fa4531286b5ce1a25e29de7c5c54f6bba2e8b845febd391
[INFO] running `"docker" "start" "-a" "14de3c4a90f4b6800fa4531286b5ce1a25e29de7c5c54f6bba2e8b845febd391"`
[INFO] [stderr]    Compiling polyomino v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "14de3c4a90f4b6800fa4531286b5ce1a25e29de7c5c54f6bba2e8b845febd391"`
[INFO] running `"docker" "rm" "-f" "14de3c4a90f4b6800fa4531286b5ce1a25e29de7c5c54f6bba2e8b845febd391"`
[INFO] [stdout] 14de3c4a90f4b6800fa4531286b5ce1a25e29de7c5c54f6bba2e8b845febd391
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-2/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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=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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] 95fb612e35945311b471eb1610167864815a4dee151c5c1c3af5c6b46b02efc2
[INFO] running `"docker" "start" "-a" "95fb612e35945311b471eb1610167864815a4dee151c5c1c3af5c6b46b02efc2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/polyomino-98f1ac9854e4e6e5
[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" "95fb612e35945311b471eb1610167864815a4dee151c5c1c3af5c6b46b02efc2"`
[INFO] running `"docker" "rm" "-f" "95fb612e35945311b471eb1610167864815a4dee151c5c1c3af5c6b46b02efc2"`
[INFO] [stdout] 95fb612e35945311b471eb1610167864815a4dee151c5c1c3af5c6b46b02efc2