[INFO] cloning repository https://github.com/arkadiusz-gorecki/eight-queens-backtracking
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arkadiusz-gorecki/eight-queens-backtracking" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farkadiusz-gorecki%2Feight-queens-backtracking", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farkadiusz-gorecki%2Feight-queens-backtracking'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5ecd7c1ec6a31483d59b83286fec66aa559c7c6e
[INFO] testing arkadiusz-gorecki/eight-queens-backtracking against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farkadiusz-gorecki%2Feight-queens-backtracking" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arkadiusz-gorecki/eight-queens-backtracking on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/arkadiusz-gorecki/eight-queens-backtracking
[INFO] finished tweaking git repo https://github.com/arkadiusz-gorecki/eight-queens-backtracking
[INFO] tweaked toml for git repo https://github.com/arkadiusz-gorecki/eight-queens-backtracking written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/arkadiusz-gorecki/eight-queens-backtracking already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f718b621aeb7b0464e1d9fa4923b7d6f36b18c2d6b435c7be47ae46c679e57d2
[INFO] running `Command { std: "docker" "start" "-a" "f718b621aeb7b0464e1d9fa4923b7d6f36b18c2d6b435c7be47ae46c679e57d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f718b621aeb7b0464e1d9fa4923b7d6f36b18c2d6b435c7be47ae46c679e57d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f718b621aeb7b0464e1d9fa4923b7d6f36b18c2d6b435c7be47ae46c679e57d2", kill_on_drop: false }`
[INFO] [stdout] f718b621aeb7b0464e1d9fa4923b7d6f36b18c2d6b435c7be47ae46c679e57d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df6484807831970827120a83d86d2fe644c4ffd5abc9d13ec5345b30083f3284
[INFO] running `Command { std: "docker" "start" "-a" "df6484807831970827120a83d86d2fe644c4ffd5abc9d13ec5345b30083f3284", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling backtracking v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "df6484807831970827120a83d86d2fe644c4ffd5abc9d13ec5345b30083f3284", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df6484807831970827120a83d86d2fe644c4ffd5abc9d13ec5345b30083f3284", kill_on_drop: false }`
[INFO] [stdout] df6484807831970827120a83d86d2fe644c4ffd5abc9d13ec5345b30083f3284
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e5cd669520b256e08da3ff54e087349fe737f787e42f3247c93adea8a023b3e
[INFO] running `Command { std: "docker" "start" "-a" "7e5cd669520b256e08da3ff54e087349fe737f787e42f3247c93adea8a023b3e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling backtracking v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "7e5cd669520b256e08da3ff54e087349fe737f787e42f3247c93adea8a023b3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e5cd669520b256e08da3ff54e087349fe737f787e42f3247c93adea8a023b3e", kill_on_drop: false }`
[INFO] [stdout] 7e5cd669520b256e08da3ff54e087349fe737f787e42f3247c93adea8a023b3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f90639f05d9c5d50398e0473479b39a7efca73183a1d76e9dcac36394cef34df
[INFO] running `Command { std: "docker" "start" "-a" "f90639f05d9c5d50398e0473479b39a7efca73183a1d76e9dcac36394cef34df", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.51s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/backtracking-5ee63e546d8e7a65)
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::backtracking_time ... ok
[INFO] [stdout] test tests::bruteforce_time ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 9.07s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/backtracking-972309ae265703f3)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests backtracking
[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" "f90639f05d9c5d50398e0473479b39a7efca73183a1d76e9dcac36394cef34df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f90639f05d9c5d50398e0473479b39a7efca73183a1d76e9dcac36394cef34df", kill_on_drop: false }`
[INFO] [stdout] f90639f05d9c5d50398e0473479b39a7efca73183a1d76e9dcac36394cef34df