[INFO] cloning repository https://github.com/mdouglasbrett/mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mdouglasbrett/mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdouglasbrett%2Fmandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdouglasbrett%2Fmandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de98264c461f347290a3a93a7159f9a1688b5de2
[INFO] checking mdouglasbrett/mandelbrot against try#579169d0e78824dc60934e5eb74cd3841f2b33e8 for pr-149328
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdouglasbrett%2Fmandelbrot" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mdouglasbrett/mandelbrot
[INFO] finished tweaking git repo https://github.com/mdouglasbrett/mandelbrot
[INFO] tweaked toml for git repo https://github.com/mdouglasbrett/mandelbrot written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mdouglasbrett/mandelbrot on toolchain 579169d0e78824dc60934e5eb74cd3841f2b33e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+579169d0e78824dc60934e5eb74cd3841f2b33e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mdouglasbrett/mandelbrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+579169d0e78824dc60934e5eb74cd3841f2b33e8" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+579169d0e78824dc60934e5eb74cd3841f2b33e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f296f06fa346e9e0272ae49b30afc285ebf8a94ce3fa45d79f452e88da043613
[INFO] running `Command { std: "docker" "start" "-a" "f296f06fa346e9e0272ae49b30afc285ebf8a94ce3fa45d79f452e88da043613", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f296f06fa346e9e0272ae49b30afc285ebf8a94ce3fa45d79f452e88da043613", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f296f06fa346e9e0272ae49b30afc285ebf8a94ce3fa45d79f452e88da043613", kill_on_drop: false }`
[INFO] [stdout] f296f06fa346e9e0272ae49b30afc285ebf8a94ce3fa45d79f452e88da043613
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+579169d0e78824dc60934e5eb74cd3841f2b33e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40d72055bda3106fb1f36812aa6168ff7b5df75067f63eaae72445e6550d449a
[INFO] running `Command { std: "docker" "start" "-a" "40d72055bda3106fb1f36812aa6168ff7b5df75067f63eaae72445e6550d449a", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking num-complex v0.4.3
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.85s
[INFO] running `Command { std: "docker" "inspect" "40d72055bda3106fb1f36812aa6168ff7b5df75067f63eaae72445e6550d449a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40d72055bda3106fb1f36812aa6168ff7b5df75067f63eaae72445e6550d449a", kill_on_drop: false }`
[INFO] [stdout] 40d72055bda3106fb1f36812aa6168ff7b5df75067f63eaae72445e6550d449a