[INFO] cloning repository https://github.com/robo-hamburger/rs_fractal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robo-hamburger/rs_fractal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobo-hamburger%2Frs_fractal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobo-hamburger%2Frs_fractal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38ff37fe62b7474603765174bbde079284cd3b03
[INFO] checking robo-hamburger/rs_fractal against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobo-hamburger%2Frs_fractal" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/robo-hamburger/rs_fractal on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/robo-hamburger/rs_fractal
[INFO] finished tweaking git repo https://github.com/robo-hamburger/rs_fractal
[INFO] tweaked toml for git repo https://github.com/robo-hamburger/rs_fractal written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/robo-hamburger/rs_fractal already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b00db520becb357d9148dc2844e07c5a7425225f429b878ab6388f968a91a45d
[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" "b00db520becb357d9148dc2844e07c5a7425225f429b878ab6388f968a91a45d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b00db520becb357d9148dc2844e07c5a7425225f429b878ab6388f968a91a45d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b00db520becb357d9148dc2844e07c5a7425225f429b878ab6388f968a91a45d", kill_on_drop: false }`
[INFO] [stdout] b00db520becb357d9148dc2844e07c5a7425225f429b878ab6388f968a91a45d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] f21363b23ed58ed2bde74e56db5b7419a70a17f313966670ff65c82dfac78980
[INFO] running `Command { std: "docker" "start" "-a" "f21363b23ed58ed2bde74e56db5b7419a70a17f313966670ff65c82dfac78980", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.18
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]    Compiling gcc v0.3.40
[INFO] [stderr]     Checking color_quant v1.0.0
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stderr]     Checking gif v0.9.0
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking num_cpus v1.2.0
[INFO] [stderr]    Compiling miniz-sys v0.1.7
[INFO] [stderr]     Checking deque v0.3.1
[INFO] [stderr]     Checking rayon v0.5.0
[INFO] [stderr]     Checking flate2 v0.2.14
[INFO] [stderr]     Checking jpeg-decoder v0.1.9
[INFO] [stderr]     Checking png v0.5.2
[INFO] [stderr]     Checking num-bigint v0.1.35
[INFO] [stderr]     Checking num-complex v0.1.35
[INFO] [stderr]     Checking num-rational v0.1.35
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking enum_primitive v0.1.0
[INFO] [stderr]     Checking image v0.10.4
[INFO] [stderr]     Checking rs_fractal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.29s
[INFO] running `Command { std: "docker" "inspect" "f21363b23ed58ed2bde74e56db5b7419a70a17f313966670ff65c82dfac78980", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f21363b23ed58ed2bde74e56db5b7419a70a17f313966670ff65c82dfac78980", kill_on_drop: false }`
[INFO] [stdout] f21363b23ed58ed2bde74e56db5b7419a70a17f313966670ff65c82dfac78980