[INFO] cloning repository https://github.com/gnuvince/aoc2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gnuvince/aoc2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgnuvince%2Faoc2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgnuvince%2Faoc2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c3178e2fc34b5554c64b9b1af9e0fce65290ee7
[INFO] documenting gnuvince/aoc2020 against master#d7d9f15be205b45d44700e7ac33b4f79b91f9680 for pr-117450
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgnuvince%2Faoc2020" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gnuvince/aoc2020 on toolchain d7d9f15be205b45d44700e7ac33b4f79b91f9680
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d7d9f15be205b45d44700e7ac33b4f79b91f9680" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gnuvince/aoc2020
[INFO] finished tweaking git repo https://github.com/gnuvince/aoc2020
[INFO] tweaked toml for git repo https://github.com/gnuvince/aoc2020 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gnuvince/aoc2020 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" "+d7d9f15be205b45d44700e7ac33b4f79b91f9680" "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 gnuvince/aoc2020 against master#50be22964035027398754e54cd3a497efb00f83e for pr-117450
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgnuvince%2Faoc2020" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gnuvince/aoc2020 on toolchain 50be22964035027398754e54cd3a497efb00f83e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50be22964035027398754e54cd3a497efb00f83e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gnuvince/aoc2020
[INFO] finished tweaking git repo https://github.com/gnuvince/aoc2020
[INFO] tweaked toml for git repo https://github.com/gnuvince/aoc2020 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gnuvince/aoc2020 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" "+50be22964035027398754e54cd3a497efb00f83e" "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
[ERROR] error running command: no output for 300 seconds
[INFO] documenting gnuvince/aoc2020 against master#50be22964035027398754e54cd3a497efb00f83e for pr-117450
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgnuvince%2Faoc2020" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gnuvince/aoc2020 on toolchain 50be22964035027398754e54cd3a497efb00f83e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50be22964035027398754e54cd3a497efb00f83e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gnuvince/aoc2020
[INFO] finished tweaking git repo https://github.com/gnuvince/aoc2020
[INFO] tweaked toml for git repo https://github.com/gnuvince/aoc2020 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gnuvince/aoc2020 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" "+50be22964035027398754e54cd3a497efb00f83e" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+50be22964035027398754e54cd3a497efb00f83e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0f82ed84a4be8e1eaa691b3a90827c0d040c2409cf61f4614b7701278f73813
[INFO] running `Command { std: "docker" "start" "-a" "f0f82ed84a4be8e1eaa691b3a90827c0d040c2409cf61f4614b7701278f73813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0f82ed84a4be8e1eaa691b3a90827c0d040c2409cf61f4614b7701278f73813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0f82ed84a4be8e1eaa691b3a90827c0d040c2409cf61f4614b7701278f73813", kill_on_drop: false }`
[INFO] [stdout] f0f82ed84a4be8e1eaa691b3a90827c0d040c2409cf61f4614b7701278f73813
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+50be22964035027398754e54cd3a497efb00f83e" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57a1125f8bf0eba591c7ed89bf353bcc7da9d1f71a624742a5a9fb08ab7241f8
[INFO] running `Command { std: "docker" "start" "-a" "57a1125f8bf0eba591c7ed89bf353bcc7da9d1f71a624742a5a9fb08ab7241f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.35
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]  Documenting aoc2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking aoc2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.34s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/aoc2020/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day01/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day02/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day03/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day04/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day05/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day06/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day07/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day08/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day09/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day10/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day11/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day12/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day13/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day14/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day15/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day16/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day17/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day18/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day19/index.html
[INFO] running `Command { std: "docker" "inspect" "57a1125f8bf0eba591c7ed89bf353bcc7da9d1f71a624742a5a9fb08ab7241f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57a1125f8bf0eba591c7ed89bf353bcc7da9d1f71a624742a5a9fb08ab7241f8", kill_on_drop: false }`
[INFO] [stdout] 57a1125f8bf0eba591c7ed89bf353bcc7da9d1f71a624742a5a9fb08ab7241f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "+50be22964035027398754e54cd3a497efb00f83e" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd50536c2519194011194fcc3ec46f8850e0df438363217f6091a9224cb85275
[INFO] running `Command { std: "docker" "start" "-a" "fd50536c2519194011194fcc3ec46f8850e0df438363217f6091a9224cb85275", kill_on_drop: false }`
[INFO] [stderr]  Documenting aoc2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/aoc2020/index.html
[INFO] running `Command { std: "docker" "inspect" "fd50536c2519194011194fcc3ec46f8850e0df438363217f6091a9224cb85275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd50536c2519194011194fcc3ec46f8850e0df438363217f6091a9224cb85275", kill_on_drop: false }`
[INFO] [stdout] fd50536c2519194011194fcc3ec46f8850e0df438363217f6091a9224cb85275