[INFO] fetching crate micro-timer 0.4.0...
[INFO] documenting micro-timer-0.4.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate micro-timer 0.4.0 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate micro-timer 0.4.0 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 micro-timer 0.4.0
[INFO] finished tweaking crates.io crate micro-timer 0.4.0
[INFO] tweaked toml for crates.io crate micro-timer 0.4.0 written to /workspace/builds/worker-19/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded micro-timer-macros v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 3486213c83d98e19c53e88ef94514d418cee51eeb7407d79f013cb94a749f2a7
[INFO] running `Command { std: "docker" "start" "-a" "3486213c83d98e19c53e88ef94514d418cee51eeb7407d79f013cb94a749f2a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3486213c83d98e19c53e88ef94514d418cee51eeb7407d79f013cb94a749f2a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3486213c83d98e19c53e88ef94514d418cee51eeb7407d79f013cb94a749f2a7", kill_on_drop: false }`
[INFO] [stdout] 3486213c83d98e19c53e88ef94514d418cee51eeb7407d79f013cb94a749f2a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 4150d98bd6737f05142af9aa2a72f1c45d6b44c22bad2244ae2e2396fc9bc9c6
[INFO] running `Command { std: "docker" "start" "-a" "4150d98bd6737f05142af9aa2a72f1c45d6b44c22bad2244ae2e2396fc9bc9c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling micro-timer-macros v0.4.0
[INFO] [stderr]  Documenting micro-timer v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.22s
[INFO] running `Command { std: "docker" "inspect" "4150d98bd6737f05142af9aa2a72f1c45d6b44c22bad2244ae2e2396fc9bc9c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4150d98bd6737f05142af9aa2a72f1c45d6b44c22bad2244ae2e2396fc9bc9c6", kill_on_drop: false }`
[INFO] [stdout] 4150d98bd6737f05142af9aa2a72f1c45d6b44c22bad2244ae2e2396fc9bc9c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 6903ea2f73fe94751f0dc8fc9c8352dbf65543dd1d5c4997d43a27a21ab800be
[INFO] running `Command { std: "docker" "start" "-a" "6903ea2f73fe94751f0dc8fc9c8352dbf65543dd1d5c4997d43a27a21ab800be", 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 scopeguard v1.1.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling micro-timer-macros v0.4.0
[INFO] [stderr]  Documenting micro-timer v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.22s
[INFO] running `Command { std: "docker" "inspect" "6903ea2f73fe94751f0dc8fc9c8352dbf65543dd1d5c4997d43a27a21ab800be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6903ea2f73fe94751f0dc8fc9c8352dbf65543dd1d5c4997d43a27a21ab800be", kill_on_drop: false }`
[INFO] [stdout] 6903ea2f73fe94751f0dc8fc9c8352dbf65543dd1d5c4997d43a27a21ab800be