[INFO] fetching crate utf8reader 0.1.0...
[INFO] documenting utf8reader-0.1.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate utf8reader 0.1.0 into /workspace/builds/worker-22/source
[INFO] validating manifest of crates.io crate utf8reader 0.1.0 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 utf8reader 0.1.0
[INFO] finished tweaking crates.io crate utf8reader 0.1.0
[INFO] tweaked toml for crates.io crate utf8reader 0.1.0 written to /workspace/builds/worker-22/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-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] da3252b01d1d6b7d5e0b617287ef95e190fb05273008b224131ec8bf11960adf
[INFO] running `Command { std: "docker" "start" "-a" "da3252b01d1d6b7d5e0b617287ef95e190fb05273008b224131ec8bf11960adf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da3252b01d1d6b7d5e0b617287ef95e190fb05273008b224131ec8bf11960adf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da3252b01d1d6b7d5e0b617287ef95e190fb05273008b224131ec8bf11960adf", kill_on_drop: false }`
[INFO] [stdout] da3252b01d1d6b7d5e0b617287ef95e190fb05273008b224131ec8bf11960adf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] 7cfc498ff5a66f96910631f8e83fd3749844230e3800e667d8b9b7d543f15ca0
[INFO] running `Command { std: "docker" "start" "-a" "7cfc498ff5a66f96910631f8e83fd3749844230e3800e667d8b9b7d543f15ca0", kill_on_drop: false }`
[INFO] [stderr]  Documenting utf8reader v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "7cfc498ff5a66f96910631f8e83fd3749844230e3800e667d8b9b7d543f15ca0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cfc498ff5a66f96910631f8e83fd3749844230e3800e667d8b9b7d543f15ca0", kill_on_drop: false }`
[INFO] [stdout] 7cfc498ff5a66f96910631f8e83fd3749844230e3800e667d8b9b7d543f15ca0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] 11d09c6e8f237355c428b332d80bf500717773fdae12bbe03d4a431caf1c006d
[INFO] running `Command { std: "docker" "start" "-a" "11d09c6e8f237355c428b332d80bf500717773fdae12bbe03d4a431caf1c006d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting utf8reader v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "11d09c6e8f237355c428b332d80bf500717773fdae12bbe03d4a431caf1c006d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11d09c6e8f237355c428b332d80bf500717773fdae12bbe03d4a431caf1c006d", kill_on_drop: false }`
[INFO] [stdout] 11d09c6e8f237355c428b332d80bf500717773fdae12bbe03d4a431caf1c006d