[INFO] cloning repository https://github.com/red2fred2/649-n-queens [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/red2fred2/649-n-queens" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fred2fred2%2F649-n-queens", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fred2fred2%2F649-n-queens'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 13ba43e2c98ba87c07495099cff95561915f286d [INFO] testing red2fred2/649-n-queens against beta-2022-02-22 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fred2fred2%2F649-n-queens" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/red2fred2/649-n-queens on toolchain beta-2022-02-22 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/red2fred2/649-n-queens [INFO] finished tweaking git repo https://github.com/red2fred2/649-n-queens [INFO] tweaked toml for git repo https://github.com/red2fred2/649-n-queens written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/red2fred2/649-n-queens already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ff5da4350b3b70756757ab442b20d96406db6904e23ea1b01e32e38f0aabaadc [INFO] running `Command { std: "docker" "start" "-a" "ff5da4350b3b70756757ab442b20d96406db6904e23ea1b01e32e38f0aabaadc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ff5da4350b3b70756757ab442b20d96406db6904e23ea1b01e32e38f0aabaadc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ff5da4350b3b70756757ab442b20d96406db6904e23ea1b01e32e38f0aabaadc", kill_on_drop: false }` [INFO] [stdout] ff5da4350b3b70756757ab442b20d96406db6904e23ea1b01e32e38f0aabaadc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2db85c0e8c72fc3398b3bced68305e77aabcbde6bf688834e52275ef809ffcf5 [INFO] running `Command { std: "docker" "start" "-a" "2db85c0e8c72fc3398b3bced68305e77aabcbde6bf688834e52275ef809ffcf5", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.118 [INFO] [stderr] Compiling getrandom v0.2.4 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling n-queens v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.37s [INFO] running `Command { std: "docker" "inspect" "2db85c0e8c72fc3398b3bced68305e77aabcbde6bf688834e52275ef809ffcf5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2db85c0e8c72fc3398b3bced68305e77aabcbde6bf688834e52275ef809ffcf5", kill_on_drop: false }` [INFO] [stdout] 2db85c0e8c72fc3398b3bced68305e77aabcbde6bf688834e52275ef809ffcf5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bbb94c2eec8a9b2491579476d495cf16c65c64d316cd12a4b4888f3fffa5ecdf [INFO] running `Command { std: "docker" "start" "-a" "bbb94c2eec8a9b2491579476d495cf16c65c64d316cd12a4b4888f3fffa5ecdf", kill_on_drop: false }` [INFO] [stderr] Compiling n-queens v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.25s [INFO] running `Command { std: "docker" "inspect" "bbb94c2eec8a9b2491579476d495cf16c65c64d316cd12a4b4888f3fffa5ecdf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bbb94c2eec8a9b2491579476d495cf16c65c64d316cd12a4b4888f3fffa5ecdf", kill_on_drop: false }` [INFO] [stdout] bbb94c2eec8a9b2491579476d495cf16c65c64d316cd12a4b4888f3fffa5ecdf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] ea044051459d0857d213a6e419ef5760a9f60c7e7b26f15077bd3e98695e88bb [INFO] running `Command { std: "docker" "start" "-a" "ea044051459d0857d213a6e419ef5760a9f60c7e7b26f15077bd3e98695e88bb", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.00s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/n_queens-6e938af5b2cba6bc) [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" "ea044051459d0857d213a6e419ef5760a9f60c7e7b26f15077bd3e98695e88bb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ea044051459d0857d213a6e419ef5760a9f60c7e7b26f15077bd3e98695e88bb", kill_on_drop: false }` [INFO] [stdout] ea044051459d0857d213a6e419ef5760a9f60c7e7b26f15077bd3e98695e88bb