[INFO] cloning repository https://github.com/jamesoff/mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jamesoff/mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamesoff%2Fmandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamesoff%2Fmandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 99b6f278b01c285aa1f1c63f57e813b7be47cfef
[INFO] checking jamesoff/mandelbrot against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamesoff%2Fmandelbrot" "/workspace/builds/worker-36/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-36/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jamesoff/mandelbrot on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jamesoff/mandelbrot
[INFO] finished tweaking git repo https://github.com/jamesoff/mandelbrot
[INFO] tweaked toml for git repo https://github.com/jamesoff/mandelbrot written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] crate git repo https://github.com/jamesoff/mandelbrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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_cpus v1.9.0
[INFO] [stderr]   Downloaded adler32 v1.0.3
[INFO] [stderr]   Downloaded lzw v0.10.0
[INFO] [stderr]   Downloaded bitflags v0.7.0
[INFO] [stderr]   Downloaded memoffset v0.2.1
[INFO] [stderr]   Downloaded rayon-core v1.4.1
[INFO] [stderr]   Downloaded num v0.1.42
[INFO] [stderr]   Downloaded inflate v0.2.0
[INFO] [stderr]   Downloaded crossbeam-epoch v0.3.1
[INFO] [stderr]   Downloaded either v1.5.0
[INFO] [stderr]   Downloaded color_quant v1.0.1
[INFO] [stderr]   Downloaded gif v0.9.2
[INFO] [stderr]   Downloaded enum_primitive v0.1.1
[INFO] [stderr]   Downloaded arrayvec v0.4.10
[INFO] [stderr]   Downloaded num-traits v0.1.43
[INFO] [stderr]   Downloaded num-integer v0.1.39
[INFO] [stderr]   Downloaded rustc-serialize v0.3.24
[INFO] [stderr]   Downloaded byteorder v1.2.7
[INFO] [stderr]   Downloaded nodrop v0.1.13
[INFO] [stderr]   Downloaded crossbeam v0.2.12
[INFO] [stderr]   Downloaded scopeguard v0.3.3
[INFO] [stderr]   Downloaded cfg-if v0.1.6
[INFO] [stderr]   Downloaded rayon v1.0.3
[INFO] [stderr]   Downloaded lazy_static v1.2.0
[INFO] [stderr]   Downloaded num-complex v0.1.43
[INFO] [stderr]   Downloaded libc v0.2.45
[INFO] [stderr]   Downloaded fuchsia-zircon-sys v0.3.3
[INFO] [stderr]   Downloaded num-traits v0.2.6
[INFO] [stderr]   Downloaded winapi-i686-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded png v0.7.0
[INFO] [stderr]   Downloaded num-iter v0.1.37
[INFO] [stderr]   Downloaded winapi-x86_64-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded winapi v0.3.6
[INFO] [stderr]   Downloaded bitflags v1.0.4
[INFO] [stderr]   Downloaded rand v0.4.3
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.15
[INFO] [stderr]   Downloaded crossbeam-utils v0.2.2
[INFO] [stderr]   Downloaded crossbeam-deque v0.2.0
[INFO] [stderr]   Downloaded deflate v0.7.19
[INFO] [stderr]   Downloaded image v0.13.0
[INFO] [stderr]   Downloaded scoped_threadpool v0.1.9
[INFO] [stderr]   Downloaded fuchsia-zircon v0.3.3
[INFO] [stderr]   Downloaded num-bigint v0.1.44
[INFO] [stderr]   Downloaded num-rational v0.1.42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b85e54f28e3c9c43b44de1964cb06500dcbb61661105a777868acf39feee404
[INFO] running `Command { std: "docker" "start" "-a" "6b85e54f28e3c9c43b44de1964cb06500dcbb61661105a777868acf39feee404", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b85e54f28e3c9c43b44de1964cb06500dcbb61661105a777868acf39feee404", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b85e54f28e3c9c43b44de1964cb06500dcbb61661105a777868acf39feee404", kill_on_drop: false }`
[INFO] [stdout] 6b85e54f28e3c9c43b44de1964cb06500dcbb61661105a777868acf39feee404
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24bcf596888f370b05aab276779207c960593ec05281d6892e420c7667fcd458
[INFO] running `Command { std: "docker" "start" "-a" "24bcf596888f370b05aab276779207c960593ec05281d6892e420c7667fcd458", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]     Checking inflate v0.2.0
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking num_cpus v1.9.0
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking png v0.7.0
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[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 18.79s
[INFO] running `Command { std: "docker" "inspect" "24bcf596888f370b05aab276779207c960593ec05281d6892e420c7667fcd458", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24bcf596888f370b05aab276779207c960593ec05281d6892e420c7667fcd458", kill_on_drop: false }`
[INFO] [stdout] 24bcf596888f370b05aab276779207c960593ec05281d6892e420c7667fcd458