[INFO] fetching crate darling 0.14.1...
[INFO] documenting darling-0.14.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate darling 0.14.1 into /workspace/builds/worker-64/source
[INFO] validating manifest of crates.io crate darling 0.14.1 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 darling 0.14.1
[INFO] finished tweaking crates.io crate darling 0.14.1
[INFO] tweaked toml for crates.io crate darling 0.14.1 written to /workspace/builds/worker-64/source/Cargo.toml
[INFO] crate crates.io crate darling 0.14.1 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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] 1e16d166ce114086f92dbf9f2d6d2e6d7b0d8052a7d00ee57e905b90e6a2022c
[INFO] running `Command { std: "docker" "start" "-a" "1e16d166ce114086f92dbf9f2d6d2e6d7b0d8052a7d00ee57e905b90e6a2022c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e16d166ce114086f92dbf9f2d6d2e6d7b0d8052a7d00ee57e905b90e6a2022c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e16d166ce114086f92dbf9f2d6d2e6d7b0d8052a7d00ee57e905b90e6a2022c", kill_on_drop: false }`
[INFO] [stdout] 1e16d166ce114086f92dbf9f2d6d2e6d7b0d8052a7d00ee57e905b90e6a2022c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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] 426217cbe3fb2ee630729817ff4c8c7bb596c67775ed06b909f230d7c7c431ce
[INFO] running `Command { std: "docker" "start" "-a" "426217cbe3fb2ee630729817ff4c8c7bb596c67775ed06b909f230d7c7c431ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]     Checking darling_core v0.14.1
[INFO] [stderr]    Compiling darling_macro v0.14.1
[INFO] [stderr]  Documenting darling v0.14.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.45s
[INFO] running `Command { std: "docker" "inspect" "426217cbe3fb2ee630729817ff4c8c7bb596c67775ed06b909f230d7c7c431ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "426217cbe3fb2ee630729817ff4c8c7bb596c67775ed06b909f230d7c7c431ce", kill_on_drop: false }`
[INFO] [stdout] 426217cbe3fb2ee630729817ff4c8c7bb596c67775ed06b909f230d7c7c431ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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] 42c6d38c882a858729602806a60826eec391cc1acf7f6a25d9f1506e89dc325c
[INFO] running `Command { std: "docker" "start" "-a" "42c6d38c882a858729602806a60826eec391cc1acf7f6a25d9f1506e89dc325c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]     Checking darling_core v0.14.1
[INFO] [stderr]    Compiling darling_macro v0.14.1
[INFO] [stderr]  Documenting darling v0.14.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.98s
[INFO] running `Command { std: "docker" "inspect" "42c6d38c882a858729602806a60826eec391cc1acf7f6a25d9f1506e89dc325c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42c6d38c882a858729602806a60826eec391cc1acf7f6a25d9f1506e89dc325c", kill_on_drop: false }`
[INFO] [stdout] 42c6d38c882a858729602806a60826eec391cc1acf7f6a25d9f1506e89dc325c