[INFO] cloning repository https://github.com/andrei-herdt/rust-os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andrei-herdt/rust-os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrei-herdt%2Frust-os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrei-herdt%2Frust-os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0f17612670a2580ed4a4c29a4678a62b8f44cb3
[INFO] documenting andrei-herdt/rust-os against master#ef324565d071c6d7e2477a195648549e33d6a465 for pr-121659-bump-pulldown-cmark
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrei-herdt%2Frust-os" "/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/andrei-herdt/rust-os on toolchain ef324565d071c6d7e2477a195648549e33d6a465
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ef324565d071c6d7e2477a195648549e33d6a465" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/andrei-herdt/rust-os
[INFO] finished tweaking git repo https://github.com/andrei-herdt/rust-os
[INFO] tweaked toml for git repo https://github.com/andrei-herdt/rust-os written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/andrei-herdt/rust-os 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" "+ef324565d071c6d7e2477a195648549e33d6a465" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] documenting andrei-herdt/rust-os against try#223112bf1ca31911a6475910c77b36bfa127d5f8 for pr-121659-bump-pulldown-cmark
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrei-herdt%2Frust-os" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andrei-herdt/rust-os on toolchain 223112bf1ca31911a6475910c77b36bfa127d5f8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/andrei-herdt/rust-os
[INFO] finished tweaking git repo https://github.com/andrei-herdt/rust-os
[INFO] tweaked toml for git repo https://github.com/andrei-herdt/rust-os written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/andrei-herdt/rust-os 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" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93cda97c94cf882f162038bd4836910fa4acf5b8642f6b9096a7e4ca3f05de93
[INFO] running `Command { std: "docker" "start" "-a" "93cda97c94cf882f162038bd4836910fa4acf5b8642f6b9096a7e4ca3f05de93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93cda97c94cf882f162038bd4836910fa4acf5b8642f6b9096a7e4ca3f05de93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93cda97c94cf882f162038bd4836910fa4acf5b8642f6b9096a7e4ca3f05de93", kill_on_drop: false }`
[INFO] [stdout] 93cda97c94cf882f162038bd4836910fa4acf5b8642f6b9096a7e4ca3f05de93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5eaed241dc1c5609b1d3e0ae72362d87cc2187459ff860051a3a5c54da568a26
[INFO] running `Command { std: "docker" "start" "-a" "5eaed241dc1c5609b1d3e0ae72362d87cc2187459ff860051a3a5c54da568a26", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.9.11
[INFO] [stderr]  Documenting blog_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected `;`, found keyword `use`
[INFO] [stdout]  --> src/main.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | mod vga_buffer
[INFO] [stdout]   |               ^ help: add `;` here
[INFO] [stdout] 5 |
[INFO] [stdout] 6 | use core::panic::PanicInfo;
[INFO] [stdout]   | --- unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected item, found `<eof>`
[INFO] [stdout]   --> src/main.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | }
[INFO] [stdout]    | ^ expected item
[INFO] [stdout]    |
[INFO] [stdout]    = note: for a full list of items that can appear in modules, see <https://doc.rust-lang.org/reference/items.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `blog_os`
[INFO] running `Command { std: "docker" "inspect" "5eaed241dc1c5609b1d3e0ae72362d87cc2187459ff860051a3a5c54da568a26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5eaed241dc1c5609b1d3e0ae72362d87cc2187459ff860051a3a5c54da568a26", kill_on_drop: false }`
[INFO] [stdout] 5eaed241dc1c5609b1d3e0ae72362d87cc2187459ff860051a3a5c54da568a26