[INFO] fetching crate bird-machine 0.0.1...
[INFO] documenting bird-machine-0.0.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate bird-machine 0.0.1 into /workspace/builds/worker-88/source
[INFO] validating manifest of crates.io crate bird-machine 0.0.1 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 crates.io crate bird-machine 0.0.1
[INFO] finished tweaking crates.io crate bird-machine 0.0.1
[INFO] tweaked toml for crates.io crate bird-machine 0.0.1 written to /workspace/builds/worker-88/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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] e8e5476d06bbbaace37a19fd9863585f7fb7eeaf34655a5f43e9ba0a18caaf19
[INFO] running `Command { std: "docker" "start" "-a" "e8e5476d06bbbaace37a19fd9863585f7fb7eeaf34655a5f43e9ba0a18caaf19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8e5476d06bbbaace37a19fd9863585f7fb7eeaf34655a5f43e9ba0a18caaf19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8e5476d06bbbaace37a19fd9863585f7fb7eeaf34655a5f43e9ba0a18caaf19", kill_on_drop: false }`
[INFO] [stdout] e8e5476d06bbbaace37a19fd9863585f7fb7eeaf34655a5f43e9ba0a18caaf19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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] 7a63eed92ac1c6a6d11136306aa935f97689072e0284c454a409790d7671c782
[INFO] running `Command { std: "docker" "start" "-a" "7a63eed92ac1c6a6d11136306aa935f97689072e0284c454a409790d7671c782", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling regex-syntax v0.6.26
[INFO] [stderr]    Compiling bird-machine-macros v0.0.1
[INFO] [stderr]  Documenting bird-machine v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.88s
[INFO] running `Command { std: "docker" "inspect" "7a63eed92ac1c6a6d11136306aa935f97689072e0284c454a409790d7671c782", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a63eed92ac1c6a6d11136306aa935f97689072e0284c454a409790d7671c782", kill_on_drop: false }`
[INFO] [stdout] 7a63eed92ac1c6a6d11136306aa935f97689072e0284c454a409790d7671c782
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 02a1f274ef4c5a8bb13dbefaeb143d95eae7a9191682173066625cec22dd33a7
[INFO] running `Command { std: "docker" "start" "-a" "02a1f274ef4c5a8bb13dbefaeb143d95eae7a9191682173066625cec22dd33a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]    Compiling bird-machine-macros v0.0.1
[INFO] [stderr]  Documenting bird-machine v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.60s
[INFO] running `Command { std: "docker" "inspect" "02a1f274ef4c5a8bb13dbefaeb143d95eae7a9191682173066625cec22dd33a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02a1f274ef4c5a8bb13dbefaeb143d95eae7a9191682173066625cec22dd33a7", kill_on_drop: false }`
[INFO] [stdout] 02a1f274ef4c5a8bb13dbefaeb143d95eae7a9191682173066625cec22dd33a7