[INFO] cloning repository https://github.com/kylecorry31/Mandelbrot-Generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kylecorry31/Mandelbrot-Generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkylecorry31%2FMandelbrot-Generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkylecorry31%2FMandelbrot-Generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 25d4a248feba247c627cb35240201b7d21870123
[INFO] checking kylecorry31/Mandelbrot-Generator against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkylecorry31%2FMandelbrot-Generator" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kylecorry31/Mandelbrot-Generator on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kylecorry31/Mandelbrot-Generator
[INFO] finished tweaking git repo https://github.com/kylecorry31/Mandelbrot-Generator
[INFO] tweaked toml for git repo https://github.com/kylecorry31/Mandelbrot-Generator written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/kylecorry31/Mandelbrot-Generator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam v0.2.12
[INFO] [stderr]   Downloaded num-complex v0.1.42
[INFO] [stderr]   Downloaded gif v0.9.2
[INFO] [stderr]   Downloaded deflate v0.7.17
[INFO] [stderr]   Downloaded num-traits v0.2.1
[INFO] [stderr]   Downloaded rayon v1.0.0
[INFO] [stderr]   Downloaded png v0.7.0
[INFO] [stderr]   Downloaded image v0.13.0
[INFO] [stderr]   Downloaded num-bigint v0.1.43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e9b63d5575f71874f7f697b80740f67e8ceca5899830227ceb231863ebe896b
[INFO] running `Command { std: "docker" "start" "-a" "9e9b63d5575f71874f7f697b80740f67e8ceca5899830227ceb231863ebe896b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e9b63d5575f71874f7f697b80740f67e8ceca5899830227ceb231863ebe896b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e9b63d5575f71874f7f697b80740f67e8ceca5899830227ceb231863ebe896b", kill_on_drop: false }`
[INFO] [stdout] 9e9b63d5575f71874f7f697b80740f67e8ceca5899830227ceb231863ebe896b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c4c44379938f1dba857f0e90e36ffb4d29ac31fd72bf0c323f348a59a95aa84
[INFO] running `Command { std: "docker" "start" "-a" "7c4c44379938f1dba857f0e90e36ffb4d29ac31fd72bf0c323f348a59a95aa84", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.37
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking png v0.7.0
[INFO] [stderr]     Checking crossbeam-epoch v0.3.0
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking rayon-core v1.4.0
[INFO] [stderr]     Checking rayon v1.0.0
[INFO] [stderr]     Checking num-bigint v0.1.43
[INFO] [stderr]     Checking num-complex v0.1.42
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking jpeg-decoder v0.1.14
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking image v0.13.0
[INFO] [stderr]     Checking mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.84s
[INFO] running `Command { std: "docker" "inspect" "7c4c44379938f1dba857f0e90e36ffb4d29ac31fd72bf0c323f348a59a95aa84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c4c44379938f1dba857f0e90e36ffb4d29ac31fd72bf0c323f348a59a95aa84", kill_on_drop: false }`
[INFO] [stdout] 7c4c44379938f1dba857f0e90e36ffb4d29ac31fd72bf0c323f348a59a95aa84