[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 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farkadiusz-gorecki%2Feight-queens-backtracking" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arkadiusz-gorecki/eight-queens-backtracking on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-10/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" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0fadd4229b1dfa6a80cf0970022ff641b8f457fc748efb6f36fc72cf7a4bd0c0
[INFO] running `Command { std: "docker" "start" "-a" "0fadd4229b1dfa6a80cf0970022ff641b8f457fc748efb6f36fc72cf7a4bd0c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fadd4229b1dfa6a80cf0970022ff641b8f457fc748efb6f36fc72cf7a4bd0c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fadd4229b1dfa6a80cf0970022ff641b8f457fc748efb6f36fc72cf7a4bd0c0", kill_on_drop: false }`
[INFO] [stdout] 0fadd4229b1dfa6a80cf0970022ff641b8f457fc748efb6f36fc72cf7a4bd0c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45b85ad0a93265203eb17fad21a9d58b09c48d8934f63f7ea366fa8a95505364
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "45b85ad0a93265203eb17fad21a9d58b09c48d8934f63f7ea366fa8a95505364", kill_on_drop: false }`
[INFO] [stderr]    Compiling backtracking v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.36s
[INFO] running `Command { std: "docker" "inspect" "45b85ad0a93265203eb17fad21a9d58b09c48d8934f63f7ea366fa8a95505364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45b85ad0a93265203eb17fad21a9d58b09c48d8934f63f7ea366fa8a95505364", kill_on_drop: false }`
[INFO] [stdout] 45b85ad0a93265203eb17fad21a9d58b09c48d8934f63f7ea366fa8a95505364
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5072acabc668baeb67687aa7eaf2713252f044b5b6044c7755e13239fd8c8516
[INFO] running `Command { std: "docker" "start" "-a" "5072acabc668baeb67687aa7eaf2713252f044b5b6044c7755e13239fd8c8516", 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 2.15s
[INFO] running `Command { std: "docker" "inspect" "5072acabc668baeb67687aa7eaf2713252f044b5b6044c7755e13239fd8c8516", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5072acabc668baeb67687aa7eaf2713252f044b5b6044c7755e13239fd8c8516", kill_on_drop: false }`
[INFO] [stdout] 5072acabc668baeb67687aa7eaf2713252f044b5b6044c7755e13239fd8c8516
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8c2ab401b14265316357e80354d0b33335c1b9ad51f1b8a25f68f0c9a3daeee2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8c2ab401b14265316357e80354d0b33335c1b9ad51f1b8a25f68f0c9a3daeee2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/backtracking-218c2aa6f674a1cf)
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::backtracking_time ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/backtracking-b7b7356884aa65e8)
[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 9.44s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests backtracking
[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" "8c2ab401b14265316357e80354d0b33335c1b9ad51f1b8a25f68f0c9a3daeee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c2ab401b14265316357e80354d0b33335c1b9ad51f1b8a25f68f0c9a3daeee2", kill_on_drop: false }`
[INFO] [stdout] 8c2ab401b14265316357e80354d0b33335c1b9ad51f1b8a25f68f0c9a3daeee2