[INFO] cloning repository https://github.com/porglezomp/buddhabrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/porglezomp/buddhabrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fporglezomp%2Fbuddhabrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fporglezomp%2Fbuddhabrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 83d1a88b8df3cea4b66966531814542877231cda
[INFO] checking porglezomp/buddhabrot against master#31ee872db5aae4750e3da1ca4ed1523c4356947f for pr-78461
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fporglezomp%2Fbuddhabrot" "/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/porglezomp/buddhabrot on toolchain 31ee872db5aae4750e3da1ca4ed1523c4356947f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/porglezomp/buddhabrot
[INFO] finished tweaking git repo https://github.com/porglezomp/buddhabrot
[INFO] tweaked toml for git repo https://github.com/porglezomp/buddhabrot written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/porglezomp/buddhabrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "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] d39b1cbdf3105b6a305cc3e8f956e87db619806b0a4141e97d1edc9b1a1d2ab5
[INFO] running `Command { std: "docker" "start" "-a" "d39b1cbdf3105b6a305cc3e8f956e87db619806b0a4141e97d1edc9b1a1d2ab5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d39b1cbdf3105b6a305cc3e8f956e87db619806b0a4141e97d1edc9b1a1d2ab5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d39b1cbdf3105b6a305cc3e8f956e87db619806b0a4141e97d1edc9b1a1d2ab5", kill_on_drop: false }`
[INFO] [stdout] d39b1cbdf3105b6a305cc3e8f956e87db619806b0a4141e97d1edc9b1a1d2ab5
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 969ee8ed86fbd2978271e342ca155ccebf9db960cf9eafabe8b78b06aca403eb
[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" "969ee8ed86fbd2978271e342ca155ccebf9db960cf9eafabe8b78b06aca403eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.38
[INFO] [stderr]     Checking rustc-serialize v0.3.21
[INFO] [stderr]    Compiling sdl2-sys v0.25.0
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking inflate v0.1.1
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking color_quant v1.0.0
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.7
[INFO] [stderr]     Checking serde v0.8.17
[INFO] [stderr]     Checking lazy_static v0.2.1
[INFO] [stderr]     Checking num_cpus v1.1.0
[INFO] [stderr]     Checking deque v0.3.1
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]     Checking rayon v0.5.0
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stderr]     Checking gif v0.9.0
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking enum_primitive v0.1.0
[INFO] [stderr]    Compiling miniz-sys v0.1.7
[INFO] [stderr]     Checking sdl2 v0.25.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.8
[INFO] [stderr]     Checking flate2 v0.2.14
[INFO] [stderr]     Checking png v0.5.2
[INFO] [stderr]     Checking num-bigint v0.1.35
[INFO] [stderr]     Checking toml v0.2.1
[INFO] [stderr]     Checking bincode v0.6.0
[INFO] [stderr]     Checking num-rational v0.1.35
[INFO] [stderr]     Checking image v0.10.3
[INFO] [stderr]     Checking buddhabrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.22s
[INFO] running `Command { std: "docker" "inspect" "969ee8ed86fbd2978271e342ca155ccebf9db960cf9eafabe8b78b06aca403eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "969ee8ed86fbd2978271e342ca155ccebf9db960cf9eafabe8b78b06aca403eb", kill_on_drop: false }`
[INFO] [stdout] 969ee8ed86fbd2978271e342ca155ccebf9db960cf9eafabe8b78b06aca403eb