[INFO] cloning repository https://github.com/crazycarl/Traveling-Salesman
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/crazycarl/Traveling-Salesman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrazycarl%2FTraveling-Salesman", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrazycarl%2FTraveling-Salesman'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2d29bddbda3a60fa76ae7c0dc4032165df6bfb0
[INFO] checking crazycarl/Traveling-Salesman against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrazycarl%2FTraveling-Salesman" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/crazycarl/Traveling-Salesman on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/crazycarl/Traveling-Salesman
[INFO] finished tweaking git repo https://github.com/crazycarl/Traveling-Salesman
[INFO] tweaked toml for git repo https://github.com/crazycarl/Traveling-Salesman written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/crazycarl/Traveling-Salesman already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex-automata v0.1.7
[INFO] [stderr]   Downloaded bstr v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3eb53e86dc6ba589315b2b9956fed501f33daa6932b71c89dc4cf59f52730dea
[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" "3eb53e86dc6ba589315b2b9956fed501f33daa6932b71c89dc4cf59f52730dea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3eb53e86dc6ba589315b2b9956fed501f33daa6932b71c89dc4cf59f52730dea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eb53e86dc6ba589315b2b9956fed501f33daa6932b71c89dc4cf59f52730dea", kill_on_drop: false }`
[INFO] [stdout] 3eb53e86dc6ba589315b2b9956fed501f33daa6932b71c89dc4cf59f52730dea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fcf752bb83c4472b1593303ec5106be804379ad77f3c40bc166cb203b33bd1e0
[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" "fcf752bb83c4472b1593303ec5106be804379ad77f3c40bc166cb203b33bd1e0", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking regex-automata v0.1.7
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking crossbeam v0.7.1
[INFO] [stderr]     Checking bstr v0.2.2
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking traveling_sales_man v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.47s
[INFO] running `Command { std: "docker" "inspect" "fcf752bb83c4472b1593303ec5106be804379ad77f3c40bc166cb203b33bd1e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcf752bb83c4472b1593303ec5106be804379ad77f3c40bc166cb203b33bd1e0", kill_on_drop: false }`
[INFO] [stdout] fcf752bb83c4472b1593303ec5106be804379ad77f3c40bc166cb203b33bd1e0