[INFO] cloning repository https://github.com/nrxus/advent_of_code
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nrxus/advent_of_code" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrxus%2Fadvent_of_code", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrxus%2Fadvent_of_code'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bdc7f766f353500435f00995d1189245550a055d
[INFO] documenting nrxus/advent_of_code against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrxus%2Fadvent_of_code" "/workspace/builds/worker-18/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-18/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nrxus/advent_of_code on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nrxus/advent_of_code
[INFO] finished tweaking git repo https://github.com/nrxus/advent_of_code
[INFO] tweaked toml for git repo https://github.com/nrxus/advent_of_code written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] crate git repo https://github.com/nrxus/advent_of_code already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f32721b365c0c1edb009136f5dd93e7acdaa8ce1eb042918c4f63e0bc3d1b90d
[INFO] running `Command { std: "docker" "start" "-a" "f32721b365c0c1edb009136f5dd93e7acdaa8ce1eb042918c4f63e0bc3d1b90d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f32721b365c0c1edb009136f5dd93e7acdaa8ce1eb042918c4f63e0bc3d1b90d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f32721b365c0c1edb009136f5dd93e7acdaa8ce1eb042918c4f63e0bc3d1b90d", kill_on_drop: false }`
[INFO] [stdout] f32721b365c0c1edb009136f5dd93e7acdaa8ce1eb042918c4f63e0bc3d1b90d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e85110507d15977b5f66e920ab2d235927910143bdf6958752d9478c3e80edc
[INFO] running `Command { std: "docker" "start" "-a" "1e85110507d15977b5f66e920ab2d235927910143bdf6958752d9478c3e80edc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: document output filename collision
[INFO] [stderr] The bin `day_01a` in package `twenty-nineteen v0.1.0 (/opt/rustwide/workdir/2019)` has the same name as the bin `day_01a` in package `twenty-fifteen v0.1.0 (/opt/rustwide/workdir/2015)`.
[INFO] [stderr] Only one may be documented at once since they output to the same path.
[INFO] [stderr] Consider documenting only one, renaming one, or marking one with `doc = false` in Cargo.toml.
[INFO] running `Command { std: "docker" "inspect" "1e85110507d15977b5f66e920ab2d235927910143bdf6958752d9478c3e80edc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e85110507d15977b5f66e920ab2d235927910143bdf6958752d9478c3e80edc", kill_on_drop: false }`
[INFO] [stdout] 1e85110507d15977b5f66e920ab2d235927910143bdf6958752d9478c3e80edc