[INFO] fetching crate tac 0.2.3...
[INFO] documenting tac-0.2.3 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate tac 0.2.3 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate tac 0.2.3 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tac 0.2.3
[INFO] finished tweaking crates.io crate tac 0.2.3
[INFO] tweaked toml for crates.io crate tac 0.2.3 written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memmap v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e6e02ea74bf61034cd84c1d92c7d0b7aefec3a63545ced748b6f79dd6c4f983
[INFO] running `Command { std: "docker" "start" "-a" "3e6e02ea74bf61034cd84c1d92c7d0b7aefec3a63545ced748b6f79dd6c4f983", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e6e02ea74bf61034cd84c1d92c7d0b7aefec3a63545ced748b6f79dd6c4f983", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e6e02ea74bf61034cd84c1d92c7d0b7aefec3a63545ced748b6f79dd6c4f983", kill_on_drop: false }`
[INFO] [stdout] 3e6e02ea74bf61034cd84c1d92c7d0b7aefec3a63545ced748b6f79dd6c4f983
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27e936e71aca676dfdcc2494cad5fc636891a7ffd598267b42703a88df32cf60
[INFO] running `Command { std: "docker" "start" "-a" "27e936e71aca676dfdcc2494cad5fc636891a7ffd598267b42703a88df32cf60", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking memmap v0.5.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking uuid v0.4.0
[INFO] [stderr]  Documenting tac v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.30s
[INFO] running `Command { std: "docker" "inspect" "27e936e71aca676dfdcc2494cad5fc636891a7ffd598267b42703a88df32cf60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27e936e71aca676dfdcc2494cad5fc636891a7ffd598267b42703a88df32cf60", kill_on_drop: false }`
[INFO] [stdout] 27e936e71aca676dfdcc2494cad5fc636891a7ffd598267b42703a88df32cf60