[INFO] cloning repository https://github.com/troeggla/mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/troeggla/mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftroeggla%2Fmandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftroeggla%2Fmandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 17aa65f5ca9e9d9bd197d1daf61beb88a4ddb70f
[INFO] checking troeggla/mandelbrot against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftroeggla%2Fmandelbrot" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/troeggla/mandelbrot on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/troeggla/mandelbrot
[INFO] finished tweaking git repo https://github.com/troeggla/mandelbrot
[INFO] tweaked toml for git repo https://github.com/troeggla/mandelbrot written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/troeggla/mandelbrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa4a23615341f4214a8ffa04d3a0b41f0623f4892a9fc0815d1c10fe7e4c99c5
[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" "aa4a23615341f4214a8ffa04d3a0b41f0623f4892a9fc0815d1c10fe7e4c99c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa4a23615341f4214a8ffa04d3a0b41f0623f4892a9fc0815d1c10fe7e4c99c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa4a23615341f4214a8ffa04d3a0b41f0623f4892a9fc0815d1c10fe7e4c99c5", kill_on_drop: false }`
[INFO] [stdout] aa4a23615341f4214a8ffa04d3a0b41f0623f4892a9fc0815d1c10fe7e4c99c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+8b72f65b805cbe4c261de45030d663f524f27376" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54f1356ae351557a530f39d532cdd6ee934e0732cd966d4f59b5b220c86d1b94
[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" "54f1356ae351557a530f39d532cdd6ee934e0732cd966d4f59b5b220c86d1b94", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.4.0
[INFO] [stderr]    Compiling rayon-core v1.3.0
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking color_quant v1.0.0
[INFO] [stderr]     Checking argparse v0.2.1
[INFO] [stderr]     Checking rand v0.3.18
[INFO] [stderr]     Checking num_cpus v1.7.0
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking num-complex v0.1.40
[INFO] [stderr]     Checking inflate v0.3.3
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking deflate v0.7.17
[INFO] [stderr]     Checking coco v0.1.1
[INFO] [stderr]     Checking num-bigint v0.1.40
[INFO] [stderr]     Checking pbr v1.0.0
[INFO] [stderr]     Checking rayon v0.8.2
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking num-rational v0.1.40
[INFO] [stderr]     Checking num v0.1.40
[INFO] [stderr]     Checking jpeg-decoder v0.1.13
[INFO] [stderr]     Checking image v0.17.0
[INFO] [stderr]     Checking mandelbrot v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.86s
[INFO] running `Command { std: "docker" "inspect" "54f1356ae351557a530f39d532cdd6ee934e0732cd966d4f59b5b220c86d1b94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54f1356ae351557a530f39d532cdd6ee934e0732cd966d4f59b5b220c86d1b94", kill_on_drop: false }`
[INFO] [stdout] 54f1356ae351557a530f39d532cdd6ee934e0732cd966d4f59b5b220c86d1b94