[INFO] cloning repository https://github.com/FilippoRanza/travelling_salesman_problem
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FilippoRanza/travelling_salesman_problem" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFilippoRanza%2Ftravelling_salesman_problem", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFilippoRanza%2Ftravelling_salesman_problem'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e344c206104e0a29a83e85fd703b64efddc56291
[INFO] checking FilippoRanza/travelling_salesman_problem against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFilippoRanza%2Ftravelling_salesman_problem" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FilippoRanza/travelling_salesman_problem on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FilippoRanza/travelling_salesman_problem
[INFO] finished tweaking git repo https://github.com/FilippoRanza/travelling_salesman_problem
[INFO] tweaked toml for git repo https://github.com/FilippoRanza/travelling_salesman_problem written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/FilippoRanza/travelling_salesman_problem already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ndarray v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] a9845075ceaf436e6451d245262092ce4e38d0045a3ffc32dc6ba209869711ec
[INFO] running `Command { std: "docker" "start" "-a" "a9845075ceaf436e6451d245262092ce4e38d0045a3ffc32dc6ba209869711ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9845075ceaf436e6451d245262092ce4e38d0045a3ffc32dc6ba209869711ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9845075ceaf436e6451d245262092ce4e38d0045a3ffc32dc6ba209869711ec", kill_on_drop: false }`
[INFO] [stdout] a9845075ceaf436e6451d245262092ce4e38d0045a3ffc32dc6ba209869711ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--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] 302785c5ef49470cc49ec64e27accff2a92a9c1a3e304f27fe6c1bd0c363d31c
[INFO] running `Command { std: "docker" "start" "-a" "302785c5ef49470cc49ec64e27accff2a92a9c1a3e304f27fe6c1bd0c363d31c", kill_on_drop: false }`
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.9
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking itertools v0.8.1
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]     Checking travelling_salesman_problem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.50s
[INFO] running `Command { std: "docker" "inspect" "302785c5ef49470cc49ec64e27accff2a92a9c1a3e304f27fe6c1bd0c363d31c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "302785c5ef49470cc49ec64e27accff2a92a9c1a3e304f27fe6c1bd0c363d31c", kill_on_drop: false }`
[INFO] [stdout] 302785c5ef49470cc49ec64e27accff2a92a9c1a3e304f27fe6c1bd0c363d31c