[INFO] cloning repository https://github.com/maxcell/rewrite-exercise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maxcell/rewrite-exercise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxcell%2Frewrite-exercise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxcell%2Frewrite-exercise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 96a8a40a938f2f24c2e9c183757db1424c43ff96
[INFO] checking maxcell/rewrite-exercise against master#336209eef13882bd1e211b24779584cb7ef911eb for pr-129249
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxcell%2Frewrite-exercise" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maxcell/rewrite-exercise on toolchain 336209eef13882bd1e211b24779584cb7ef911eb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/maxcell/rewrite-exercise
[INFO] finished tweaking git repo https://github.com/maxcell/rewrite-exercise
[INFO] tweaked toml for git repo https://github.com/maxcell/rewrite-exercise written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/maxcell/rewrite-exercise already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded selectors v0.21.0
[INFO] [stderr]   Downloaded procedural-masquerade v0.1.7
[INFO] [stderr]   Downloaded cssparser v0.25.9
[INFO] [stderr]   Downloaded lol_html v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4310362d8b11c77dfe1875c7d899638d15fa9466709595371bdd9aefaeb54aa
[INFO] running `Command { std: "docker" "start" "-a" "a4310362d8b11c77dfe1875c7d899638d15fa9466709595371bdd9aefaeb54aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4310362d8b11c77dfe1875c7d899638d15fa9466709595371bdd9aefaeb54aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4310362d8b11c77dfe1875c7d899638d15fa9466709595371bdd9aefaeb54aa", kill_on_drop: false }`
[INFO] [stdout] a4310362d8b11c77dfe1875c7d899638d15fa9466709595371bdd9aefaeb54aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 214c39977d237d14dfad30869ed1055395e01957d860b733c5c1cdad1bd71ea4
[INFO] running `Command { std: "docker" "start" "-a" "214c39977d237d14dfad30869ed1055395e01957d860b733c5c1cdad1bd71ea4", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/4bb6b44136844d6ead077cef788a7854104f2245df855975594197d4b0c6225f/merged: no space left on device
[INFO] running `Command { std: "docker" "inspect" "214c39977d237d14dfad30869ed1055395e01957d860b733c5c1cdad1bd71ea4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "214c39977d237d14dfad30869ed1055395e01957d860b733c5c1cdad1bd71ea4", kill_on_drop: false }`
[INFO] [stdout] 214c39977d237d14dfad30869ed1055395e01957d860b733c5c1cdad1bd71ea4