[INFO] cloning repository https://github.com/backtail/juliabrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/backtail/juliabrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbacktail%2Fjuliabrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbacktail%2Fjuliabrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d92670ee1ce0637c8af5a90ddc994a1b21400e80
[INFO] checking backtail/juliabrot against master#84e729a59f216cc64755788a470f165429a731f4 for pr-123737-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbacktail%2Fjuliabrot" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/backtail/juliabrot on toolchain 84e729a59f216cc64755788a470f165429a731f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+84e729a59f216cc64755788a470f165429a731f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/backtail/juliabrot
[INFO] finished tweaking git repo https://github.com/backtail/juliabrot
[INFO] tweaked toml for git repo https://github.com/backtail/juliabrot written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/backtail/juliabrot 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" "+84e729a59f216cc64755788a470f165429a731f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pkg-config v0.3.24
[INFO] [stderr]   Downloaded once_cell v1.9.0
[INFO] [stderr]   Downloaded wayland-egl v0.29.4
[INFO] [stderr]   Downloaded darling_macro v0.13.1
[INFO] [stderr]   Downloaded darling v0.13.1
[INFO] [stderr]   Downloaded num_enum v0.5.6
[INFO] [stderr]   Downloaded quote v1.0.14
[INFO] [stderr]   Downloaded num_enum_derive v0.5.6
[INFO] [stderr]   Downloaded backtrace v0.3.63
[INFO] [stderr]   Downloaded object v0.27.1
[INFO] [stderr]   Downloaded syn v1.0.85
[INFO] [stderr]   Downloaded libc v0.2.112
[INFO] [stderr]   Downloaded gimli v0.26.1
[INFO] [stderr]   Downloaded glium v0.31.0
[INFO] [stderr]   Downloaded serde v1.0.133
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.15.3
[INFO] [stderr]   Downloaded nix v0.22.0
[INFO] [stderr]   Downloaded darling_core v0.13.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+84e729a59f216cc64755788a470f165429a731f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4568c21e01de29fb6428c3527fa3381d1f99be5edd8a461a26cbe2346640c8ae
[INFO] running `Command { std: "docker" "start" "-a" "4568c21e01de29fb6428c3527fa3381d1f99be5edd8a461a26cbe2346640c8ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4568c21e01de29fb6428c3527fa3381d1f99be5edd8a461a26cbe2346640c8ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4568c21e01de29fb6428c3527fa3381d1f99be5edd8a461a26cbe2346640c8ae", kill_on_drop: false }`
[INFO] [stdout] 4568c21e01de29fb6428c3527fa3381d1f99be5edd8a461a26cbe2346640c8ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+84e729a59f216cc64755788a470f165429a731f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1824e6d97855499509591d3bff8661397163fef078504ae31d213b99d87d16d
[INFO] running `Command { std: "docker" "start" "-a" "e1824e6d97855499509591d3bff8661397163fef078504ae31d213b99d87d16d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking libloading v0.7.2
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking raw-window-handle v0.4.2
[INFO] [stderr]    Compiling glium v0.31.0
[INFO] [stderr]     Checking takeable-option v0.5.0
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]    Compiling wayland-sys v0.29.4
[INFO] [stderr]    Compiling x11-dl v2.19.1
[INFO] [stderr]    Compiling smithay-client-toolkit v0.15.3
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]    Compiling wayland-scanner v0.29.4
[INFO] [stderr]     Checking nix v0.22.0
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking memmap2 v0.3.1
[INFO] [stderr]     Checking mio v0.8.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling wayland-client v0.29.4
[INFO] [stderr]    Compiling wayland-protocols v0.29.4
[INFO] [stderr]     Checking xcursor v0.3.4
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking glutin_glx_sys v0.1.7
[INFO] [stderr]     Checking wayland-commons v0.29.4
[INFO] [stderr]     Checking calloop v0.9.3
[INFO] [stderr]     Checking wayland-cursor v0.29.4
[INFO] [stderr]     Checking wayland-egl v0.29.4
[INFO] [stderr]     Checking winit v0.26.1
[INFO] [stderr]     Checking glutin v0.28.0
[INFO] [stderr]     Checking mandelbrot_on_gpu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 40.54s
[INFO] running `Command { std: "docker" "inspect" "e1824e6d97855499509591d3bff8661397163fef078504ae31d213b99d87d16d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1824e6d97855499509591d3bff8661397163fef078504ae31d213b99d87d16d", kill_on_drop: false }`
[INFO] [stdout] e1824e6d97855499509591d3bff8661397163fef078504ae31d213b99d87d16d