[INFO] fetching crate mime_classifier 0.0.1...
[INFO] documenting mime_classifier-0.0.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate mime_classifier 0.0.1 into /workspace/builds/worker-18/source
[INFO] validating manifest of crates.io crate mime_classifier 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 mime_classifier 0.0.1
[INFO] finished tweaking crates.io crate mime_classifier 0.0.1
[INFO] tweaked toml for crates.io crate mime_classifier 0.0.1 written to /workspace/builds/worker-18/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-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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] 6cf1a5f18e4137a96d55c284efba67be46365f55175a5ff7f00a5af3fa09162e
[INFO] running `Command { std: "docker" "start" "-a" "6cf1a5f18e4137a96d55c284efba67be46365f55175a5ff7f00a5af3fa09162e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cf1a5f18e4137a96d55c284efba67be46365f55175a5ff7f00a5af3fa09162e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cf1a5f18e4137a96d55c284efba67be46365f55175a5ff7f00a5af3fa09162e", kill_on_drop: false }`
[INFO] [stdout] 6cf1a5f18e4137a96d55c284efba67be46365f55175a5ff7f00a5af3fa09162e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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] d779386e1960dfd4cfb8a61ce5bb8a0d1cb7f652bc669da4e623a333d9785c93
[INFO] running `Command { std: "docker" "start" "-a" "d779386e1960dfd4cfb8a61ce5bb8a0d1cb7f652bc669da4e623a333d9785c93", 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 serde v1.0.137
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]  Documenting mime_classifier v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.77s
[INFO] running `Command { std: "docker" "inspect" "d779386e1960dfd4cfb8a61ce5bb8a0d1cb7f652bc669da4e623a333d9785c93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d779386e1960dfd4cfb8a61ce5bb8a0d1cb7f652bc669da4e623a333d9785c93", kill_on_drop: false }`
[INFO] [stdout] d779386e1960dfd4cfb8a61ce5bb8a0d1cb7f652bc669da4e623a333d9785c93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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] 228158f56bf38a75fe4708996eb38e0a19d82783f697190bca678a3d93234105
[INFO] running `Command { std: "docker" "start" "-a" "228158f56bf38a75fe4708996eb38e0a19d82783f697190bca678a3d93234105", 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 serde v1.0.137
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]  Documenting mime_classifier v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.91s
[INFO] running `Command { std: "docker" "inspect" "228158f56bf38a75fe4708996eb38e0a19d82783f697190bca678a3d93234105", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "228158f56bf38a75fe4708996eb38e0a19d82783f697190bca678a3d93234105", kill_on_drop: false }`
[INFO] [stdout] 228158f56bf38a75fe4708996eb38e0a19d82783f697190bca678a3d93234105