[INFO] cloning repository https://github.com/078105099107108097117115/Rust-Concurrent-Gray-Scale-Mandelbrot-Set-Plot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/078105099107108097117115/Rust-Concurrent-Gray-Scale-Mandelbrot-Set-Plot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F078105099107108097117115%2FRust-Concurrent-Gray-Scale-Mandelbrot-Set-Plot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F078105099107108097117115%2FRust-Concurrent-Gray-Scale-Mandelbrot-Set-Plot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 09a4e48f4fe6b1de4ed528a44bd1c766e2c62b3f
[INFO] checking 078105099107108097117115/Rust-Concurrent-Gray-Scale-Mandelbrot-Set-Plot against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F078105099107108097117115%2FRust-Concurrent-Gray-Scale-Mandelbrot-Set-Plot" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/078105099107108097117115/Rust-Concurrent-Gray-Scale-Mandelbrot-Set-Plot on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/078105099107108097117115/Rust-Concurrent-Gray-Scale-Mandelbrot-Set-Plot
[INFO] finished tweaking git repo https://github.com/078105099107108097117115/Rust-Concurrent-Gray-Scale-Mandelbrot-Set-Plot
[INFO] tweaked toml for git repo https://github.com/078105099107108097117115/Rust-Concurrent-Gray-Scale-Mandelbrot-Set-Plot written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/078105099107108097117115/Rust-Concurrent-Gray-Scale-Mandelbrot-Set-Plot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42d3d88a471b1be323c4b18a10d4fc3866d89232f561bdcbde8a19bcf1850126
[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" "42d3d88a471b1be323c4b18a10d4fc3866d89232f561bdcbde8a19bcf1850126", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42d3d88a471b1be323c4b18a10d4fc3866d89232f561bdcbde8a19bcf1850126", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42d3d88a471b1be323c4b18a10d4fc3866d89232f561bdcbde8a19bcf1850126", kill_on_drop: false }`
[INFO] [stdout] 42d3d88a471b1be323c4b18a10d4fc3866d89232f561bdcbde8a19bcf1850126
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c904d2cef3a9334af458d21278d1e0c962d833319f221fa7c094965884ef069d
[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" "c904d2cef3a9334af458d21278d1e0c962d833319f221fa7c094965884ef069d", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking png v0.7.0
[INFO] [stderr]     Checking rayon-core v1.6.0
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.16
[INFO] [stderr]     Checking image v0.13.0
[INFO] [stderr]     Checking mandelbrot_plot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.71s
[INFO] running `Command { std: "docker" "inspect" "c904d2cef3a9334af458d21278d1e0c962d833319f221fa7c094965884ef069d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c904d2cef3a9334af458d21278d1e0c962d833319f221fa7c094965884ef069d", kill_on_drop: false }`
[INFO] [stdout] c904d2cef3a9334af458d21278d1e0c962d833319f221fa7c094965884ef069d