[INFO] cloning repository https://github.com/pacman82/mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pacman82/mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpacman82%2Fmandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpacman82%2Fmandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 246c9ea9d931839008092afd9bb55f2f5dbaef8d
[INFO] checking pacman82/mandelbrot against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpacman82%2Fmandelbrot" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pacman82/mandelbrot on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pacman82/mandelbrot
[INFO] finished tweaking git repo https://github.com/pacman82/mandelbrot
[INFO] tweaked toml for git repo https://github.com/pacman82/mandelbrot written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pacman82/mandelbrot 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stb_truetype v0.3.0
[INFO] [stderr]   Downloaded rusttype v0.8.0
[INFO] [stderr]   Downloaded glutin_egl_sys v0.1.3
[INFO] [stderr]   Downloaded downcast-rs v1.0.4
[INFO] [stderr]   Downloaded glutin v0.21.1
[INFO] [stderr]   Downloaded objc v0.2.6
[INFO] [stderr]   Downloaded winit v0.19.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b811954f87a7c175e98432f6dbfd94a11ecc4f01ee6a49edb701c8ae2472e7f
[INFO] running `Command { std: "docker" "start" "-a" "3b811954f87a7c175e98432f6dbfd94a11ecc4f01ee6a49edb701c8ae2472e7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b811954f87a7c175e98432f6dbfd94a11ecc4f01ee6a49edb701c8ae2472e7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b811954f87a7c175e98432f6dbfd94a11ecc4f01ee6a49edb701c8ae2472e7f", kill_on_drop: false }`
[INFO] [stdout] 3b811954f87a7c175e98432f6dbfd94a11ecc4f01ee6a49edb701c8ae2472e7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d241c2e37f743c7e6d7112f263151e411a98f188b67fc6ff9fe0ccedf4168e2
[INFO] running `Command { std: "docker" "start" "-a" "0d241c2e37f743c7e6d7112f263151e411a98f188b67fc6ff9fe0ccedf4168e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]     Checking downcast-rs v1.0.4
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking takeable-option v0.4.0
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling x11-dl v2.18.4
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]     Checking stb_truetype v0.3.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.5
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.3
[INFO] [stderr]    Compiling glium v0.25.1
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking rusttype v0.8.0
[INFO] [stderr]     Checking backtrace v0.3.37
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]    Compiling derivative v1.0.3
[INFO] [stderr]     Checking wayland-commons v0.21.13
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.6
[INFO] [stderr]     Checking winit v0.19.3
[INFO] [stderr]     Checking glutin v0.21.1
[INFO] [stderr]     Checking mandelbrot v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.33s
[INFO] running `Command { std: "docker" "inspect" "0d241c2e37f743c7e6d7112f263151e411a98f188b67fc6ff9fe0ccedf4168e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d241c2e37f743c7e6d7112f263151e411a98f188b67fc6ff9fe0ccedf4168e2", kill_on_drop: false }`
[INFO] [stdout] 0d241c2e37f743c7e6d7112f263151e411a98f188b67fc6ff9fe0ccedf4168e2