[INFO] cloning repository https://github.com/pineapplehunter/Mandel-Brot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pineapplehunter/Mandel-Brot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpineapplehunter%2FMandel-Brot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpineapplehunter%2FMandel-Brot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a74bac5872406810662d60d45922a9ce4298c742
[INFO] checking pineapplehunter/Mandel-Brot against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpineapplehunter%2FMandel-Brot" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pineapplehunter/Mandel-Brot on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pineapplehunter/Mandel-Brot
[INFO] finished tweaking git repo https://github.com/pineapplehunter/Mandel-Brot
[INFO] tweaked toml for git repo https://github.com/pineapplehunter/Mandel-Brot written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/pineapplehunter/Mandel-Brot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bumpalo v3.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2db074ea3df4df4b0c9f3afed9dc3c7b37ef8ebb9e3484afc87c2e080369a8c6
[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" "2db074ea3df4df4b0c9f3afed9dc3c7b37ef8ebb9e3484afc87c2e080369a8c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2db074ea3df4df4b0c9f3afed9dc3c7b37ef8ebb9e3484afc87c2e080369a8c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2db074ea3df4df4b0c9f3afed9dc3c7b37ef8ebb9e3484afc87c2e080369a8c6", kill_on_drop: false }`
[INFO] [stdout] 2db074ea3df4df4b0c9f3afed9dc3c7b37ef8ebb9e3484afc87c2e080369a8c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5bc61815cd5cc561e01e888eb8374270bf02da122055281a8de25ec585252b9f
[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" "5bc61815cd5cc561e01e888eb8374270bf02da122055281a8de25ec585252b9f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.58
[INFO] [stderr]    Compiling bumpalo v3.1.2
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.58
[INFO] [stderr]    Compiling sourcefile v0.1.4
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling weedle v0.10.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.58
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.58
[INFO] [stderr]    Compiling wasm-bindgen-webidl v0.2.58
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.58
[INFO] [stderr]     Checking js-sys v0.3.35
[INFO] [stderr]    Compiling web-sys v0.3.35
[INFO] [stderr]     Checking julia_set v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.70s
[INFO] running `Command { std: "docker" "inspect" "5bc61815cd5cc561e01e888eb8374270bf02da122055281a8de25ec585252b9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bc61815cd5cc561e01e888eb8374270bf02da122055281a8de25ec585252b9f", kill_on_drop: false }`
[INFO] [stdout] 5bc61815cd5cc561e01e888eb8374270bf02da122055281a8de25ec585252b9f