[INFO] cloning repository https://github.com/AnicetNgrt/zugzwang_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AnicetNgrt/zugzwang_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnicetNgrt%2Fzugzwang_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnicetNgrt%2Fzugzwang_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe8f0d04b00c0bc45b7187225970b3a7bbac139b
[INFO] documenting AnicetNgrt/zugzwang_rust against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnicetNgrt%2Fzugzwang_rust" "/workspace/builds/worker-61/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-61/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AnicetNgrt/zugzwang_rust on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AnicetNgrt/zugzwang_rust
[INFO] finished tweaking git repo https://github.com/AnicetNgrt/zugzwang_rust
[INFO] tweaked toml for git repo https://github.com/AnicetNgrt/zugzwang_rust written to /workspace/builds/worker-61/source/Cargo.toml
[INFO] crate git repo https://github.com/AnicetNgrt/zugzwang_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 365032aaec701841d5222a19fd635021ffc52da81f71692493af7d7a831ac4d0
[INFO] running `Command { std: "docker" "start" "-a" "365032aaec701841d5222a19fd635021ffc52da81f71692493af7d7a831ac4d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "365032aaec701841d5222a19fd635021ffc52da81f71692493af7d7a831ac4d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "365032aaec701841d5222a19fd635021ffc52da81f71692493af7d7a831ac4d0", kill_on_drop: false }`
[INFO] [stdout] 365032aaec701841d5222a19fd635021ffc52da81f71692493af7d7a831ac4d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0164e45da42be67a6bcb72d19c6abffd1391d305bdbed0aaea915e6c9d22b68e
[INFO] running `Command { std: "docker" "start" "-a" "0164e45da42be67a6bcb72d19c6abffd1391d305bdbed0aaea915e6c9d22b68e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking text_io v0.1.8
[INFO] [stderr]  Documenting zugzwang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.40s
[INFO] running `Command { std: "docker" "inspect" "0164e45da42be67a6bcb72d19c6abffd1391d305bdbed0aaea915e6c9d22b68e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0164e45da42be67a6bcb72d19c6abffd1391d305bdbed0aaea915e6c9d22b68e", kill_on_drop: false }`
[INFO] [stdout] 0164e45da42be67a6bcb72d19c6abffd1391d305bdbed0aaea915e6c9d22b68e