[INFO] cloning repository https://github.com/rkscodes/mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rkscodes/mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frkscodes%2Fmandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frkscodes%2Fmandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b111ee3737d15650639b0ed8a43b013394ea72b5
[INFO] checking rkscodes/mandelbrot against try#342ed2e8608ee307743c341962b427652cdb06e9 for pr-146562
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frkscodes%2Fmandelbrot" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rkscodes/mandelbrot
[INFO] finished tweaking git repo https://github.com/rkscodes/mandelbrot
[INFO] tweaked toml for git repo https://github.com/rkscodes/mandelbrot written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rkscodes/mandelbrot on toolchain 342ed2e8608ee307743c341962b427652cdb06e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+342ed2e8608ee307743c341962b427652cdb06e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rkscodes/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" "+342ed2e8608ee307743c341962b427652cdb06e9" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking rkscodes/mandelbrot against try#342ed2e8608ee307743c341962b427652cdb06e9 for pr-146562
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frkscodes%2Fmandelbrot" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rkscodes/mandelbrot
[INFO] finished tweaking git repo https://github.com/rkscodes/mandelbrot
[INFO] tweaked toml for git repo https://github.com/rkscodes/mandelbrot written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rkscodes/mandelbrot on toolchain 342ed2e8608ee307743c341962b427652cdb06e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+342ed2e8608ee307743c341962b427652cdb06e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rkscodes/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" "+342ed2e8608ee307743c341962b427652cdb06e9" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-rational v0.1.43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+342ed2e8608ee307743c341962b427652cdb06e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccadf00a94ce0e47ce59c344dbb31d4901fd607b41833aeb6a335df4cc0aa3b4
[INFO] running `Command { std: "docker" "start" "-a" "ccadf00a94ce0e47ce59c344dbb31d4901fd607b41833aeb6a335df4cc0aa3b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccadf00a94ce0e47ce59c344dbb31d4901fd607b41833aeb6a335df4cc0aa3b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccadf00a94ce0e47ce59c344dbb31d4901fd607b41833aeb6a335df4cc0aa3b4", kill_on_drop: false }`
[INFO] [stdout] ccadf00a94ce0e47ce59c344dbb31d4901fd607b41833aeb6a335df4cc0aa3b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+342ed2e8608ee307743c341962b427652cdb06e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c22548232b2b340ceb62845017e4bef0cd174b9576b6c33e453433866f37fc4
[INFO] running `Command { std: "docker" "start" "-a" "2c22548232b2b340ceb62845017e4bef0cd174b9576b6c33e453433866f37fc4", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-rational v0.1.43
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking inflate v0.2.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking crossbeam-queue v0.3.12
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.14
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking png v0.7.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking image v0.13.0
[INFO] [stderr]     Checking mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.58s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.7.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "2c22548232b2b340ceb62845017e4bef0cd174b9576b6c33e453433866f37fc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c22548232b2b340ceb62845017e4bef0cd174b9576b6c33e453433866f37fc4", kill_on_drop: false }`
[INFO] [stdout] 2c22548232b2b340ceb62845017e4bef0cd174b9576b6c33e453433866f37fc4