[INFO] cloning repository https://github.com/floriama/mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/floriama/mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffloriama%2Fmandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffloriama%2Fmandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] beda31dcd3337ce992fc99317ad28935cc432890
[INFO] checking floriama/mandelbrot against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffloriama%2Fmandelbrot" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/floriama/mandelbrot on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/floriama/mandelbrot
[INFO] finished tweaking git repo https://github.com/floriama/mandelbrot
[INFO] tweaked toml for git repo https://github.com/floriama/mandelbrot written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/floriama/mandelbrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4237cfbb48773c04a85a90fb1dbc2c5f3434088dc84fb98181ee2c0adfebd617
[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" "4237cfbb48773c04a85a90fb1dbc2c5f3434088dc84fb98181ee2c0adfebd617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4237cfbb48773c04a85a90fb1dbc2c5f3434088dc84fb98181ee2c0adfebd617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4237cfbb48773c04a85a90fb1dbc2c5f3434088dc84fb98181ee2c0adfebd617", kill_on_drop: false }`
[INFO] [stdout] 4237cfbb48773c04a85a90fb1dbc2c5f3434088dc84fb98181ee2c0adfebd617
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] 2966b5362315cbef5b17f0402d22a532f7752a9e9055a7b5218974a231b619a4
[INFO] running `Command { std: "docker" "start" "-a" "2966b5362315cbef5b17f0402d22a532f7752a9e9055a7b5218974a231b619a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling siphasher v0.2.0
[INFO] [stderr]    Compiling libc v0.2.20
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling serde v0.8.22
[INFO] [stderr]    Compiling dtoa v0.2.2
[INFO] [stderr]    Compiling itoa v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling khronos_api v1.0.0
[INFO] [stderr]    Compiling log v0.3.6
[INFO] [stderr]    Compiling gcc v0.3.41
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]     Checking rustc-demangle v0.1.3
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking fnv v1.0.5
[INFO] [stderr]     Checking smallvec v0.1.8
[INFO] [stderr]    Compiling x11-dl v2.12.0
[INFO] [stderr]    Compiling xml-rs v0.3.5
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]     Checking shared_library v0.1.5
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling tempfile v2.1.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]     Checking fs2 v0.2.5
[INFO] [stderr]     Checking memmap v0.4.0
[INFO] [stderr]    Compiling wayland-scanner v0.7.6
[INFO] [stderr]    Compiling gl_generator v0.5.2
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling wayland-client v0.7.6
[INFO] [stderr]    Compiling target_build_utils v0.1.2
[INFO] [stderr]    Compiling glutin v0.7.2
[INFO] [stderr]    Compiling glium v0.16.0
[INFO] [stderr]    Compiling serde_json v0.8.6
[INFO] [stderr]    Compiling libloading v0.3.1
[INFO] [stderr]     Checking dlib v0.3.1
[INFO] [stderr]     Checking wayland-sys v0.7.6
[INFO] [stderr]     Checking wayland-kbd v0.6.2
[INFO] [stderr]     Checking wayland-window v0.4.3
[INFO] [stderr]     Checking winit v0.5.7
[INFO] [stderr]     Checking mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.95s
[INFO] running `Command { std: "docker" "inspect" "2966b5362315cbef5b17f0402d22a532f7752a9e9055a7b5218974a231b619a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2966b5362315cbef5b17f0402d22a532f7752a9e9055a7b5218974a231b619a4", kill_on_drop: false }`
[INFO] [stdout] 2966b5362315cbef5b17f0402d22a532f7752a9e9055a7b5218974a231b619a4