[INFO] cloning repository https://github.com/catchtori/async_runtime
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/catchtori/async_runtime" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcatchtori%2Fasync_runtime", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcatchtori%2Fasync_runtime'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b843d952c34251127109e5e3c0e04a3c5fae583c
[INFO] documenting catchtori/async_runtime against master#ef324565d071c6d7e2477a195648549e33d6a465 for pr-121659-bump-pulldown-cmark
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcatchtori%2Fasync_runtime" "/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/catchtori/async_runtime 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] started tweaking git repo https://github.com/catchtori/async_runtime
[INFO] finished tweaking git repo https://github.com/catchtori/async_runtime
[INFO] tweaked toml for git repo https://github.com/catchtori/async_runtime written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/catchtori/async_runtime 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 catchtori/async_runtime against try#223112bf1ca31911a6475910c77b36bfa127d5f8 for pr-121659-bump-pulldown-cmark
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcatchtori%2Fasync_runtime" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/catchtori/async_runtime 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] started tweaking git repo https://github.com/catchtori/async_runtime
[INFO] finished tweaking git repo https://github.com/catchtori/async_runtime
[INFO] tweaked toml for git repo https://github.com/catchtori/async_runtime written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/catchtori/async_runtime 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 4959e628da329aaaba3b383c6347995524aafd52d7dff2b236551c731c92d54d
[INFO] running `Command { std: "docker" "start" "-a" "4959e628da329aaaba3b383c6347995524aafd52d7dff2b236551c731c92d54d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4959e628da329aaaba3b383c6347995524aafd52d7dff2b236551c731c92d54d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4959e628da329aaaba3b383c6347995524aafd52d7dff2b236551c731c92d54d", kill_on_drop: false }`
[INFO] [stdout] 4959e628da329aaaba3b383c6347995524aafd52d7dff2b236551c731c92d54d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 800aff6bd24c2f1672c440f3cf2e6cae6aece11b70164eb5fe63c1fb0bdb7c2e
[INFO] running `Command { std: "docker" "start" "-a" "800aff6bd24c2f1672c440f3cf2e6cae6aece11b70164eb5fe63c1fb0bdb7c2e", kill_on_drop: false }`
[INFO] [stderr]  Documenting async_runtime v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: mismatched closing delimiter: `}`
[INFO] [stdout]    --> src/main.rs:131:22
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn wake(self: Arc<Self>) {
[INFO] [stdout]     |                              - closing delimiter possibly meant for this
[INFO] [stdout] 131 |         RUNNABLE.with(|runnable: &Mute<VecDeque<Arc<Task>>>>| runnable.lock().unwrap().push_back(Arc::clone()); 
[INFO] [stdout]     |                      ^ unclosed delimiter
[INFO] [stdout] 132 |         self.signal.notify();
[INFO] [stdout] 133 |     }
[INFO] [stdout]     |     ^ mismatched closing delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: mismatched closing delimiter: `)`
[INFO] [stdout]    --> src/main.rs:136:6
[INFO] [stdout]     |
[INFO] [stdout] 136 | loop {
[INFO] [stdout]     |      ^ unclosed delimiter
[INFO] [stdout] ...
[INFO] [stdout] 140 |     while let Some(task: Arc<Task>) = runnable.lock().unwrap().pop_front()) {
[INFO] [stdout]     |                                                                           ^ mismatched closing delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected closing delimiter: `}`
[INFO] [stdout]    --> src/main.rs:146:1
[INFO] [stdout]     |
[INFO] [stdout] 140 |     while let Some(task: Arc<Task>) = runnable.lock().unwrap().pop_front()) {
[INFO] [stdout]     |                                                                           - missing open `(` for this delimiter
[INFO] [stdout] ...
[INFO] [stdout] 146 | }
[INFO] [stdout]     | ^ unexpected closing delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `async_runtime`
[INFO] running `Command { std: "docker" "inspect" "800aff6bd24c2f1672c440f3cf2e6cae6aece11b70164eb5fe63c1fb0bdb7c2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "800aff6bd24c2f1672c440f3cf2e6cae6aece11b70164eb5fe63c1fb0bdb7c2e", kill_on_drop: false }`
[INFO] [stdout] 800aff6bd24c2f1672c440f3cf2e6cae6aece11b70164eb5fe63c1fb0bdb7c2e