[INFO] cloning repository https://github.com/becknik/mill-mcts
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/becknik/mill-mcts" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbecknik%2Fmill-mcts", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbecknik%2Fmill-mcts'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 326170babddd5b51c0265b4f4d52375fd1cc3b09
[INFO] documenting becknik/mill-mcts against 1.86.0 for beta-1.87-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbecknik%2Fmill-mcts" "/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/becknik/mill-mcts on toolchain 1.86.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.86.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/becknik/mill-mcts
[INFO] finished tweaking git repo https://github.com/becknik/mill-mcts
[INFO] tweaked toml for git repo https://github.com/becknik/mill-mcts written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/becknik/mill-mcts 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" "+1.86.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded id_tree v1.8.0
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e70c366fa7cd8351bc0bfff89f43b840637e74b1cdd0db08779be49119979dbc
[INFO] running `Command { std: "docker" "start" "-a" "e70c366fa7cd8351bc0bfff89f43b840637e74b1cdd0db08779be49119979dbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e70c366fa7cd8351bc0bfff89f43b840637e74b1cdd0db08779be49119979dbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e70c366fa7cd8351bc0bfff89f43b840637e74b1cdd0db08779be49119979dbc", kill_on_drop: false }`
[INFO] [stdout] e70c366fa7cd8351bc0bfff89f43b840637e74b1cdd0db08779be49119979dbc


command failed: exit status: 1

Error response from daemon: mkdir /var/lib/docker/overlay2/b5c25fadca3003cd81d476f4472787b96f3ad0bc9607c16d02c7ea6e7ff45446/merged: no space left on device