[INFO] cloning repository https://github.com/tobiges/grid_coloring_problem_solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tobiges/grid_coloring_problem_solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftobiges%2Fgrid_coloring_problem_solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftobiges%2Fgrid_coloring_problem_solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 80ee0f1bf2fda843f7475cf84ec0d45d313107bc
[INFO] testing tobiges/grid_coloring_problem_solver 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%2Ftobiges%2Fgrid_coloring_problem_solver" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tobiges/grid_coloring_problem_solver 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/tobiges/grid_coloring_problem_solver
[INFO] finished tweaking git repo https://github.com/tobiges/grid_coloring_problem_solver
[INFO] tweaked toml for git repo https://github.com/tobiges/grid_coloring_problem_solver written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/tobiges/grid_coloring_problem_solver 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 9fe39ea70b0f2e68e5c544a3b7cb5489ff31704d588e83f3c46ec6442ed4bf0f
[INFO] running `Command { std: "docker" "start" "-a" "9fe39ea70b0f2e68e5c544a3b7cb5489ff31704d588e83f3c46ec6442ed4bf0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fe39ea70b0f2e68e5c544a3b7cb5489ff31704d588e83f3c46ec6442ed4bf0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fe39ea70b0f2e68e5c544a3b7cb5489ff31704d588e83f3c46ec6442ed4bf0f", kill_on_drop: false }`
[INFO] [stdout] 9fe39ea70b0f2e68e5c544a3b7cb5489ff31704d588e83f3c46ec6442ed4bf0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 530b04a32d5468f3232d582f23ef9980f176b0f0fe80077f4890fdfc33f21533
[INFO] running `Command { std: "docker" "start" "-a" "530b04a32d5468f3232d582f23ef9980f176b0f0fe80077f4890fdfc33f21533", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling anyhow v1.0.52
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]    Compiling varisat-formula v0.2.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling vec_mut_scan v0.3.0
[INFO] [stderr]    Compiling leb128 v0.2.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling varisat-internal-proof v0.2.2
[INFO] [stderr]    Compiling varisat v0.2.2
[INFO] [stderr]    Compiling ordered-float v2.10.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling partial_ref_derive v0.3.3
[INFO] [stderr]    Compiling varisat-internal-macros v0.2.2
[INFO] [stderr]    Compiling partial_ref v0.3.3
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling varisat-dimacs v0.2.2
[INFO] [stderr]    Compiling varisat-checker v0.2.2
[INFO] [stderr]    Compiling grid_coloring_problem_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 17.65s
[INFO] running `Command { std: "docker" "inspect" "530b04a32d5468f3232d582f23ef9980f176b0f0fe80077f4890fdfc33f21533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "530b04a32d5468f3232d582f23ef9980f176b0f0fe80077f4890fdfc33f21533", kill_on_drop: false }`
[INFO] [stdout] 530b04a32d5468f3232d582f23ef9980f176b0f0fe80077f4890fdfc33f21533
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 5b41b4d734f9f8ec611adf33e42ba10ee197dd0b4039bac6acb90f781170a4bd
[INFO] running `Command { std: "docker" "start" "-a" "5b41b4d734f9f8ec611adf33e42ba10ee197dd0b4039bac6acb90f781170a4bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling grid_coloring_problem_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 0.38s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/grid_coloring_problem_solver-e10985c2071f508f)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/grid_coloring_problem_solver-1e592f9286a6589d)
[INFO] running `Command { std: "docker" "inspect" "5b41b4d734f9f8ec611adf33e42ba10ee197dd0b4039bac6acb90f781170a4bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b41b4d734f9f8ec611adf33e42ba10ee197dd0b4039bac6acb90f781170a4bd", kill_on_drop: false }`
[INFO] [stdout] 5b41b4d734f9f8ec611adf33e42ba10ee197dd0b4039bac6acb90f781170a4bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 0265397c3b3a7d544fa298bebe3d6ff6afb1f4928153d9ab341b7fd0c6865fd2
[INFO] running `Command { std: "docker" "start" "-a" "0265397c3b3a7d544fa298bebe3d6ff6afb1f4928153d9ab341b7fd0c6865fd2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 0.55s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/grid_coloring_problem_solver-e10985c2071f508f)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/grid_coloring_problem_solver-1e592f9286a6589d)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    Doc-tests grid_coloring_problem_solver
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0265397c3b3a7d544fa298bebe3d6ff6afb1f4928153d9ab341b7fd0c6865fd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0265397c3b3a7d544fa298bebe3d6ff6afb1f4928153d9ab341b7fd0c6865fd2", kill_on_drop: false }`
[INFO] [stdout] 0265397c3b3a7d544fa298bebe3d6ff6afb1f4928153d9ab341b7fd0c6865fd2