[INFO] cloning repository https://github.com/hanksterhan/mandelbrot-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hanksterhan/mandelbrot-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhanksterhan%2Fmandelbrot-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhanksterhan%2Fmandelbrot-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1af1510c12a4a0a2401b2fcb31ca8528a93b67e1
[INFO] checking hanksterhan/mandelbrot-rust against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhanksterhan%2Fmandelbrot-rust" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hanksterhan/mandelbrot-rust on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hanksterhan/mandelbrot-rust
[INFO] finished tweaking git repo https://github.com/hanksterhan/mandelbrot-rust
[INFO] tweaked toml for git repo https://github.com/hanksterhan/mandelbrot-rust written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/hanksterhan/mandelbrot-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", 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] fedf80138f00024d72094a05a764b13a526468928ec1f0b216f91a3ff1e2fa15
[INFO] running `Command { std: "docker" "start" "-a" "fedf80138f00024d72094a05a764b13a526468928ec1f0b216f91a3ff1e2fa15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fedf80138f00024d72094a05a764b13a526468928ec1f0b216f91a3ff1e2fa15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fedf80138f00024d72094a05a764b13a526468928ec1f0b216f91a3ff1e2fa15", kill_on_drop: false }`
[INFO] [stdout] fedf80138f00024d72094a05a764b13a526468928ec1f0b216f91a3ff1e2fa15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 455246017dd1284236feb3cd038f1a4035b42141b4bd87e9a5eb68e01b3cd242
[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" "455246017dd1284236feb3cd038f1a4035b42141b4bd87e9a5eb68e01b3cd242", kill_on_drop: false }`
[INFO] [stderr]    Compiling dtoa v0.4.4
[INFO] [stderr]    Compiling x11-dl v2.18.4
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking fs2 v0.2.5
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]    Compiling wayland-client v0.5.12
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking backtrace v0.2.3
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking tempfile v2.2.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking memmap v0.2.3
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling gl_generator v0.5.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling glutin v0.6.2
[INFO] [stderr]    Compiling glium v0.15.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]     Checking dlib v0.3.1
[INFO] [stderr]     Checking wayland-sys v0.5.11
[INFO] [stderr]     Checking wayland-kbd v0.3.6
[INFO] [stderr]     Checking wayland-window v0.2.3
[INFO] [stderr]     Checking mandelbrot-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.39s
[INFO] running `Command { std: "docker" "inspect" "455246017dd1284236feb3cd038f1a4035b42141b4bd87e9a5eb68e01b3cd242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "455246017dd1284236feb3cd038f1a4035b42141b4bd87e9a5eb68e01b3cd242", kill_on_drop: false }`
[INFO] [stdout] 455246017dd1284236feb3cd038f1a4035b42141b4bd87e9a5eb68e01b3cd242