[INFO] cloning repository https://github.com/way-cooler/way-cooler-grab
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/way-cooler/way-cooler-grab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fway-cooler%2Fway-cooler-grab", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fway-cooler%2Fway-cooler-grab'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9c451aac9c5d69e71709cbc6afbfb6677519811
[INFO] checking way-cooler/way-cooler-grab against master#a836d9b6413d9d593be6c09463ff8c4c70e56599 for pr-84037
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fway-cooler%2Fway-cooler-grab" "/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/way-cooler/way-cooler-grab on toolchain a836d9b6413d9d593be6c09463ff8c4c70e56599
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/way-cooler/way-cooler-grab
[INFO] finished tweaking git repo https://github.com/way-cooler/way-cooler-grab
[INFO] tweaked toml for git repo https://github.com/way-cooler/way-cooler-grab written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/way-cooler/way-cooler-grab already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e2d4d033e73dbd606b8713a00f272ed64d23662f1ab4562c69b0d5b4c311e658
[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" "e2d4d033e73dbd606b8713a00f272ed64d23662f1ab4562c69b0d5b4c311e658", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2d4d033e73dbd606b8713a00f272ed64d23662f1ab4562c69b0d5b4c311e658", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2d4d033e73dbd606b8713a00f272ed64d23662f1ab4562c69b0d5b4c311e658", kill_on_drop: false }`
[INFO] [stdout] e2d4d033e73dbd606b8713a00f272ed64d23662f1ab4562c69b0d5b4c311e658
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8dfabd6aa06a9e8ef8470ad106f992ce7fa8f0e8848b84ecac1ce435da68c9c2
[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" "8dfabd6aa06a9e8ef8470ad106f992ce7fa8f0e8848b84ecac1ce435da68c9c2", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]    Compiling error-chain v0.7.2
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking adler32 v1.0.0
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking bitflags v0.8.0
[INFO] [stderr]     Checking vec_map v0.7.0
[INFO] [stderr]     Checking gif v0.9.1
[INFO] [stderr]     Checking deflate v0.7.5
[INFO] [stderr]    Compiling metadeps v1.1.1
[INFO] [stderr]     Checking num-integer v0.1.33
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking num_cpus v1.3.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking term_size v0.2.3
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking num-rational v0.1.36
[INFO] [stderr]     Checking clap v2.22.0
[INFO] [stderr]    Compiling dbus v0.5.2
[INFO] [stderr]     Checking png v0.6.2
[INFO] [stderr]     Checking deque v0.3.1
[INFO] [stderr]     Checking rayon v0.6.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.11
[INFO] [stderr]     Checking image v0.12.3
[INFO] [stderr]     Checking wc-grab v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.87s
[INFO] running `Command { std: "docker" "inspect" "8dfabd6aa06a9e8ef8470ad106f992ce7fa8f0e8848b84ecac1ce435da68c9c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dfabd6aa06a9e8ef8470ad106f992ce7fa8f0e8848b84ecac1ce435da68c9c2", kill_on_drop: false }`
[INFO] [stdout] 8dfabd6aa06a9e8ef8470ad106f992ce7fa8f0e8848b84ecac1ce435da68c9c2