[INFO] cloning repository https://github.com/BrianMehrman/rust_mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BrianMehrman/rust_mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrianMehrman%2Frust_mandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrianMehrman%2Frust_mandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7824c96e7ab8fb4919949c75a990f49c80ff09ba
[INFO] checking BrianMehrman/rust_mandelbrot against try#575650af7d7ca88602df28e39d27bf3e456c306e for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrianMehrman%2Frust_mandelbrot" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BrianMehrman/rust_mandelbrot on toolchain 575650af7d7ca88602df28e39d27bf3e456c306e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BrianMehrman/rust_mandelbrot
[INFO] finished tweaking git repo https://github.com/BrianMehrman/rust_mandelbrot
[INFO] tweaked toml for git repo https://github.com/BrianMehrman/rust_mandelbrot written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/BrianMehrman/rust_mandelbrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gl v0.6.5
[INFO] [stderr]   Downloaded num-bigint v0.1.43
[INFO] [stderr]   Downloaded cmake v0.1.30
[INFO] [stderr]   Downloaded byteorder v1.2.2
[INFO] [stderr]   Downloaded glfw v0.19.0
[INFO] [stderr]   Downloaded image v0.17.0
[INFO] [stderr]   Downloaded cc v1.0.10
[INFO] [stderr]   Downloaded glfw-sys v3.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb20be67749c6b00502f0daefed077b06fc62418c8c34a5dac820fe48bc46152
[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" "fb20be67749c6b00502f0daefed077b06fc62418c8c34a5dac820fe48bc46152", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb20be67749c6b00502f0daefed077b06fc62418c8c34a5dac820fe48bc46152", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb20be67749c6b00502f0daefed077b06fc62418c8c34a5dac820fe48bc46152", kill_on_drop: false }`
[INFO] [stdout] fb20be67749c6b00502f0daefed077b06fc62418c8c34a5dac820fe48bc46152
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "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] c7468cfc3c87e866e2471715ddc31ae0ba7e79385cc35a7b80c2a8773c4cb9e3
[INFO] running `Command { std: "docker" "start" "-a" "c7468cfc3c87e866e2471715ddc31ae0ba7e79385cc35a7b80c2a8773c4cb9e3", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling cc v1.0.10
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]     Checking byteorder v1.2.2
[INFO] [stderr]     Checking color_quant v1.0.0
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking inflate v0.3.4
[INFO] [stderr]     Checking semver v0.2.3
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling cmake v0.1.30
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]    Compiling glfw-sys v3.2.2
[INFO] [stderr]     Checking rayon-core v1.4.0
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking cgmath v0.14.1
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]     Checking num-bigint v0.1.43
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking rayon v1.0.1
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking jpeg-decoder v0.1.14
[INFO] [stderr]     Checking glfw v0.19.0
[INFO] [stderr]     Checking image v0.17.0
[INFO] [stderr]     Checking benoît v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.41s
[INFO] running `Command { std: "docker" "inspect" "c7468cfc3c87e866e2471715ddc31ae0ba7e79385cc35a7b80c2a8773c4cb9e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7468cfc3c87e866e2471715ddc31ae0ba7e79385cc35a7b80c2a8773c4cb9e3", kill_on_drop: false }`
[INFO] [stdout] c7468cfc3c87e866e2471715ddc31ae0ba7e79385cc35a7b80c2a8773c4cb9e3