[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 master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 103a4699651a8ef6c2d3caa47fd3b47a9d71a80d24bbb5f373b0464cab3a8952
[INFO] running `"docker" "start" "-a" "103a4699651a8ef6c2d3caa47fd3b47a9d71a80d24bbb5f373b0464cab3a8952"`
[INFO] [stderr]    Compiling polyomino v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `"docker" "inspect" "103a4699651a8ef6c2d3caa47fd3b47a9d71a80d24bbb5f373b0464cab3a8952"`
[INFO] running `"docker" "rm" "-f" "103a4699651a8ef6c2d3caa47fd3b47a9d71a80d24bbb5f373b0464cab3a8952"`
[INFO] [stdout] 103a4699651a8ef6c2d3caa47fd3b47a9d71a80d24bbb5f373b0464cab3a8952
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8a6e5277096e804cb444d66c25ffa9a68fcba54f7168e4cc3d3caeca03c018f9
[INFO] running `"docker" "start" "-a" "8a6e5277096e804cb444d66c25ffa9a68fcba54f7168e4cc3d3caeca03c018f9"`
[INFO] [stderr]    Compiling polyomino v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `"docker" "inspect" "8a6e5277096e804cb444d66c25ffa9a68fcba54f7168e4cc3d3caeca03c018f9"`
[INFO] running `"docker" "rm" "-f" "8a6e5277096e804cb444d66c25ffa9a68fcba54f7168e4cc3d3caeca03c018f9"`
[INFO] [stdout] 8a6e5277096e804cb444d66c25ffa9a68fcba54f7168e4cc3d3caeca03c018f9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] 14e095eecc025549401a76d686583192285a91f93d0448e133cfff400e2b249f
[INFO] running `"docker" "start" "-a" "14e095eecc025549401a76d686583192285a91f93d0448e133cfff400e2b249f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/polyomino-c1accb062e388cac
[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" "14e095eecc025549401a76d686583192285a91f93d0448e133cfff400e2b249f"`
[INFO] running `"docker" "rm" "-f" "14e095eecc025549401a76d686583192285a91f93d0448e133cfff400e2b249f"`
[INFO] [stdout] 14e095eecc025549401a76d686583192285a91f93d0448e133cfff400e2b249f