[INFO] cloning repository https://github.com/tmthecoder/fifteen_puzzle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tmthecoder/fifteen_puzzle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftmthecoder%2Ffifteen_puzzle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftmthecoder%2Ffifteen_puzzle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d7aa8e5ae55a3b313f8bde018f7c6715f1df21b
[INFO] documenting tmthecoder/fifteen_puzzle against master#ef324565d071c6d7e2477a195648549e33d6a465 for pr-121659-bump-pulldown-cmark
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftmthecoder%2Ffifteen_puzzle" "/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/tmthecoder/fifteen_puzzle 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/tmthecoder/fifteen_puzzle
[INFO] finished tweaking git repo https://github.com/tmthecoder/fifteen_puzzle
[INFO] tweaked toml for git repo https://github.com/tmthecoder/fifteen_puzzle written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tmthecoder/fifteen_puzzle 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 tmthecoder/fifteen_puzzle against try#223112bf1ca31911a6475910c77b36bfa127d5f8 for pr-121659-bump-pulldown-cmark
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftmthecoder%2Ffifteen_puzzle" "/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/tmthecoder/fifteen_puzzle 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/tmthecoder/fifteen_puzzle
[INFO] finished tweaking git repo https://github.com/tmthecoder/fifteen_puzzle
[INFO] tweaked toml for git repo https://github.com/tmthecoder/fifteen_puzzle written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tmthecoder/fifteen_puzzle 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] 45a153010470cfeef2e42fca7952742aa0bc7b484ce6eb618e0803a2b0e34a37
[INFO] running `Command { std: "docker" "start" "-a" "45a153010470cfeef2e42fca7952742aa0bc7b484ce6eb618e0803a2b0e34a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45a153010470cfeef2e42fca7952742aa0bc7b484ce6eb618e0803a2b0e34a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45a153010470cfeef2e42fca7952742aa0bc7b484ce6eb618e0803a2b0e34a37", kill_on_drop: false }`
[INFO] [stdout] 45a153010470cfeef2e42fca7952742aa0bc7b484ce6eb618e0803a2b0e34a37
[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] 2c0e366270cc5aed15275210825450357c793128e73a9886c656bfb671bed798
[INFO] running `Command { std: "docker" "start" "-a" "2c0e366270cc5aed15275210825450357c793128e73a9886c656bfb671bed798", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking bytecount v0.6.7
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking papergrid v0.11.0
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.27.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling tabled_derive v0.7.0
[INFO] [stderr]     Checking tabled v0.15.0
[INFO] [stderr]  Documenting fifteen_puzzle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]   --> src/board.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |     /// Referenced from https://www.geeksforgeeks.org/check-instance-15-puzzle-solvable/
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://www.geeksforgeeks.org/check-instance-15-puzzle-solvable/>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout]    = note: `#[warn(rustdoc::bare_urls)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.66s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/fifteen_puzzle/index.html
[INFO] running `Command { std: "docker" "inspect" "2c0e366270cc5aed15275210825450357c793128e73a9886c656bfb671bed798", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c0e366270cc5aed15275210825450357c793128e73a9886c656bfb671bed798", kill_on_drop: false }`
[INFO] [stdout] 2c0e366270cc5aed15275210825450357c793128e73a9886c656bfb671bed798