[INFO] cloning repository https://github.com/fumita/parallel-mandelbrot-algorithm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fumita/parallel-mandelbrot-algorithm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffumita%2Fparallel-mandelbrot-algorithm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffumita%2Fparallel-mandelbrot-algorithm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0462372d6817b4fe74e9fac91fd885c0f9c9c29
[INFO] checking fumita/parallel-mandelbrot-algorithm against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffumita%2Fparallel-mandelbrot-algorithm" "/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/fumita/parallel-mandelbrot-algorithm on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fumita/parallel-mandelbrot-algorithm
[INFO] finished tweaking git repo https://github.com/fumita/parallel-mandelbrot-algorithm
[INFO] tweaked toml for git repo https://github.com/fumita/parallel-mandelbrot-algorithm written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/fumita/parallel-mandelbrot-algorithm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8fdc491f87276cf81c39457d3f73ac038f55c6655948f0d0217bdc0d80dae53
[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" "a8fdc491f87276cf81c39457d3f73ac038f55c6655948f0d0217bdc0d80dae53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8fdc491f87276cf81c39457d3f73ac038f55c6655948f0d0217bdc0d80dae53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8fdc491f87276cf81c39457d3f73ac038f55c6655948f0d0217bdc0d80dae53", kill_on_drop: false }`
[INFO] [stdout] a8fdc491f87276cf81c39457d3f73ac038f55c6655948f0d0217bdc0d80dae53
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 252b25866d829d330d6a595974f0386e2c7655f57984c1a33b20ce2fef67139c
[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" "252b25866d829d330d6a595974f0386e2c7655f57984c1a33b20ce2fef67139c", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking either v1.4.0
[INFO] [stderr]     Checking inflate v0.1.1
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking deque v0.3.2
[INFO] [stderr]    Compiling rayon-core v1.3.0
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking rayon v0.4.3
[INFO] [stderr]     Checking coco v0.1.1
[INFO] [stderr]     Checking rayon v0.8.2
[INFO] [stderr]     Checking png v0.5.2
[INFO] [stderr]     Checking num-bigint v0.1.41
[INFO] [stderr]     Checking num-complex v0.1.41
[INFO] [stderr]     Checking jpeg-decoder v0.1.13
[INFO] [stderr]     Checking num-rational v0.1.41
[INFO] [stderr]     Checking image v0.10.4
[INFO] [stderr]     Checking num v0.1.41
[INFO] [stderr]     Checking mandelbrot v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.60s
[INFO] running `Command { std: "docker" "inspect" "252b25866d829d330d6a595974f0386e2c7655f57984c1a33b20ce2fef67139c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "252b25866d829d330d6a595974f0386e2c7655f57984c1a33b20ce2fef67139c", kill_on_drop: false }`
[INFO] [stdout] 252b25866d829d330d6a595974f0386e2c7655f57984c1a33b20ce2fef67139c