[INFO] cloning repository https://github.com/y011d4/Polyomino-Solver-in-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/y011d4/Polyomino-Solver-in-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy011d4%2FPolyomino-Solver-in-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy011d4%2FPolyomino-Solver-in-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da213f8f620d6aef241c0ecc2c4a191a7c646486
[INFO] testing y011d4/Polyomino-Solver-in-Rust against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy011d4%2FPolyomino-Solver-in-Rust" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/y011d4/Polyomino-Solver-in-Rust on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/y011d4/Polyomino-Solver-in-Rust
[INFO] finished tweaking git repo https://github.com/y011d4/Polyomino-Solver-in-Rust
[INFO] tweaked toml for git repo https://github.com/y011d4/Polyomino-Solver-in-Rust written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/y011d4/Polyomino-Solver-in-Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60fc58a4c32f76a5f69ac86cb9973ecd33ec8c1bd7f6dd2fd47159d2b1994701
[INFO] running `Command { std: "docker" "start" "-a" "60fc58a4c32f76a5f69ac86cb9973ecd33ec8c1bd7f6dd2fd47159d2b1994701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60fc58a4c32f76a5f69ac86cb9973ecd33ec8c1bd7f6dd2fd47159d2b1994701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60fc58a4c32f76a5f69ac86cb9973ecd33ec8c1bd7f6dd2fd47159d2b1994701", kill_on_drop: false }`
[INFO] [stdout] 60fc58a4c32f76a5f69ac86cb9973ecd33ec8c1bd7f6dd2fd47159d2b1994701
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 390ffb9f6c53bf5f3f4ef845f971944b8dd97f7ee19f2688237b7d630ef6e8c0
[INFO] running `Command { std: "docker" "start" "-a" "390ffb9f6c53bf5f3f4ef845f971944b8dd97f7ee19f2688237b7d630ef6e8c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling polyomino v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "390ffb9f6c53bf5f3f4ef845f971944b8dd97f7ee19f2688237b7d630ef6e8c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "390ffb9f6c53bf5f3f4ef845f971944b8dd97f7ee19f2688237b7d630ef6e8c0", kill_on_drop: false }`
[INFO] [stdout] 390ffb9f6c53bf5f3f4ef845f971944b8dd97f7ee19f2688237b7d630ef6e8c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f6064b0f04c7290177e8d740e148110a952e0c6c118b7945337385a0037f911
[INFO] running `Command { std: "docker" "start" "-a" "8f6064b0f04c7290177e8d740e148110a952e0c6c118b7945337385a0037f911", kill_on_drop: false }`
[INFO] [stderr]    Compiling polyomino v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.44s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/polyomino-cd0dba27547e8f05)
[INFO] running `Command { std: "docker" "inspect" "8f6064b0f04c7290177e8d740e148110a952e0c6c118b7945337385a0037f911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f6064b0f04c7290177e8d740e148110a952e0c6c118b7945337385a0037f911", kill_on_drop: false }`
[INFO] [stdout] 8f6064b0f04c7290177e8d740e148110a952e0c6c118b7945337385a0037f911
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b05a3257b54dc0e9676ba6c5cd74111206ea088934e0ff92186e79e2386f4365
[INFO] running `Command { std: "docker" "start" "-a" "b05a3257b54dc0e9676ba6c5cd74111206ea088934e0ff92186e79e2386f4365", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/polyomino-cd0dba27547e8f05)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b05a3257b54dc0e9676ba6c5cd74111206ea088934e0ff92186e79e2386f4365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b05a3257b54dc0e9676ba6c5cd74111206ea088934e0ff92186e79e2386f4365", kill_on_drop: false }`
[INFO] [stdout] b05a3257b54dc0e9676ba6c5cd74111206ea088934e0ff92186e79e2386f4365