[INFO] cloning repository https://github.com/cfzimmerman/multithreaded-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cfzimmerman/multithreaded-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfzimmerman%2Fmultithreaded-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfzimmerman%2Fmultithreaded-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9fd7035ca33f76bc3382e86aec7b3f9e0499d6d
[INFO] documenting cfzimmerman/multithreaded-server 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%2Fcfzimmerman%2Fmultithreaded-server" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cfzimmerman/multithreaded-server 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/cfzimmerman/multithreaded-server
[INFO] finished tweaking git repo https://github.com/cfzimmerman/multithreaded-server
[INFO] tweaked toml for git repo https://github.com/cfzimmerman/multithreaded-server written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cfzimmerman/multithreaded-server 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 8cd4ceca7891e918f425d4a6b166dcc7681922e63c4f4e8b46b3320666a97105
[INFO] running `Command { std: "docker" "start" "-a" "8cd4ceca7891e918f425d4a6b166dcc7681922e63c4f4e8b46b3320666a97105", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cd4ceca7891e918f425d4a6b166dcc7681922e63c4f4e8b46b3320666a97105", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cd4ceca7891e918f425d4a6b166dcc7681922e63c4f4e8b46b3320666a97105", kill_on_drop: false }`
[INFO] [stdout] 8cd4ceca7891e918f425d4a6b166dcc7681922e63c4f4e8b46b3320666a97105
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 662667a40e88da286b1d4c89ef5af63609cfe12e6c30eade850f7f81da58bc7d
[INFO] running `Command { std: "docker" "start" "-a" "662667a40e88da286b1d4c89ef5af63609cfe12e6c30eade850f7f81da58bc7d", kill_on_drop: false }`
[INFO] [stderr]  Documenting multithreaded-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't generate documentation: No space left on device (os error 28)
[INFO] [stdout]   |
[INFO] [stdout]   = note: failed to create or modify "/opt/rustwide/target/doc/static.files/rustdoc-6c3ea77c.css"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `multithreaded-server`
[INFO] running `Command { std: "docker" "inspect" "662667a40e88da286b1d4c89ef5af63609cfe12e6c30eade850f7f81da58bc7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "662667a40e88da286b1d4c89ef5af63609cfe12e6c30eade850f7f81da58bc7d", kill_on_drop: false }`
[INFO] [stdout] 662667a40e88da286b1d4c89ef5af63609cfe12e6c30eade850f7f81da58bc7d