[INFO] cloning repository https://github.com/dove-lang/dove
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dove-lang/dove" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdove-lang%2Fdove", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdove-lang%2Fdove'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 641ac4899c7b4c31148f6560ec377ccab7146331
[INFO] documenting dove-lang/dove against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdove-lang%2Fdove" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dove-lang/dove on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dove-lang/dove
[INFO] finished tweaking git repo https://github.com/dove-lang/dove
[INFO] tweaked toml for git repo https://github.com/dove-lang/dove written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/dove-lang/dove already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] caafc953bb9060f647cb3f21c34f4619340096906d72a89489f8a51068d0dcfc
[INFO] running `Command { std: "docker" "start" "-a" "caafc953bb9060f647cb3f21c34f4619340096906d72a89489f8a51068d0dcfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "caafc953bb9060f647cb3f21c34f4619340096906d72a89489f8a51068d0dcfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caafc953bb9060f647cb3f21c34f4619340096906d72a89489f8a51068d0dcfc", kill_on_drop: false }`
[INFO] [stdout] caafc953bb9060f647cb3f21c34f4619340096906d72a89489f8a51068d0dcfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40c6f2c42080f446e72a1c1567b0b5526cf31f149022ea05cf35c8c90a0579ef
[INFO] running `Command { std: "docker" "start" "-a" "40c6f2c42080f446e72a1c1567b0b5526cf31f149022ea05cf35c8c90a0579ef", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking dove-core v0.1.0 (/opt/rustwide/workdir/dove-core)
[INFO] [stderr]  Documenting dove v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't read dove-core: Is a directory (os error 21)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `dove`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name dove dove-core -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=4313f27120de529d -L dependency=/opt/rustwide/target/debug/deps --extern dove_core=/opt/rustwide/target/debug/deps/libdove_core-c4bfde9ece281f67.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "40c6f2c42080f446e72a1c1567b0b5526cf31f149022ea05cf35c8c90a0579ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40c6f2c42080f446e72a1c1567b0b5526cf31f149022ea05cf35c8c90a0579ef", kill_on_drop: false }`
[INFO] [stdout] 40c6f2c42080f446e72a1c1567b0b5526cf31f149022ea05cf35c8c90a0579ef