[INFO] fetching crate rac 1.3.4...
[INFO] documenting rac-1.3.4 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate rac 1.3.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rac 1.3.4 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 rac 1.3.4
[INFO] finished tweaking crates.io crate rac 1.3.4
[INFO] tweaked toml for crates.io crate rac 1.3.4 written to /workspace/builds/worker-2/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] 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 4d4be35979762cd320b8b70a402ffd109ca45f38d88bb611e3afb1aae1e7bf82
[INFO] running `Command { std: "docker" "start" "-a" "4d4be35979762cd320b8b70a402ffd109ca45f38d88bb611e3afb1aae1e7bf82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d4be35979762cd320b8b70a402ffd109ca45f38d88bb611e3afb1aae1e7bf82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d4be35979762cd320b8b70a402ffd109ca45f38d88bb611e3afb1aae1e7bf82", kill_on_drop: false }`
[INFO] [stdout] 4d4be35979762cd320b8b70a402ffd109ca45f38d88bb611e3afb1aae1e7bf82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 334f02eec245587ca116a513b49723c62b11e9a2a576ed0f218ffb72dc4aa512
[INFO] running `Command { std: "docker" "start" "-a" "334f02eec245587ca116a513b49723c62b11e9a2a576ed0f218ffb72dc4aa512", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]  Documenting rac v1.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.88s
[INFO] running `Command { std: "docker" "inspect" "334f02eec245587ca116a513b49723c62b11e9a2a576ed0f218ffb72dc4aa512", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "334f02eec245587ca116a513b49723c62b11e9a2a576ed0f218ffb72dc4aa512", kill_on_drop: false }`
[INFO] [stdout] 334f02eec245587ca116a513b49723c62b11e9a2a576ed0f218ffb72dc4aa512
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] be399e229220ff631cac17b8a7e4ae90a895c5d0a22e006c13d16e1562432f2a
[INFO] running `Command { std: "docker" "start" "-a" "be399e229220ff631cac17b8a7e4ae90a895c5d0a22e006c13d16e1562432f2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]  Documenting rac v1.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.77s
[INFO] running `Command { std: "docker" "inspect" "be399e229220ff631cac17b8a7e4ae90a895c5d0a22e006c13d16e1562432f2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be399e229220ff631cac17b8a7e4ae90a895c5d0a22e006c13d16e1562432f2a", kill_on_drop: false }`
[INFO] [stdout] be399e229220ff631cac17b8a7e4ae90a895c5d0a22e006c13d16e1562432f2a