[INFO] fetching crate lac 0.4.0...
[INFO] documenting lac-0.4.0 against master#c04832643d70479988a3ad9d92b63d9bc95e9c6d for pr-107291
[INFO] extracting crate lac 0.4.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate lac 0.4.0 on toolchain c04832643d70479988a3ad9d92b63d9bc95e9c6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c04832643d70479988a3ad9d92b63d9bc95e9c6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lac 0.4.0
[INFO] finished tweaking crates.io crate lac 0.4.0
[INFO] tweaked toml for crates.io crate lac 0.4.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate lac 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c04832643d70479988a3ad9d92b63d9bc95e9c6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-process v1.1.0
[INFO] [stderr]   Downloaded signal-hook v0.3.9
[INFO] [stderr]   Downloaded futures-macro v0.3.15
[INFO] [stderr]   Downloaded futures-executor v0.3.15
[INFO] [stderr]   Downloaded async-io v1.4.1
[INFO] [stderr]   Downloaded polling v2.0.3
[INFO] [stderr]   Downloaded futures v0.3.15
[INFO] [stderr]   Downloaded argh_shared v0.1.4
[INFO] [stderr]   Downloaded argh_derive v0.1.4
[INFO] [stderr]   Downloaded argh v0.1.4
[INFO] [stderr]   Downloaded async-recursion v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+c04832643d70479988a3ad9d92b63d9bc95e9c6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 242313e6dca31c969a2b2fb799a4146daba8c260ed99a0080e646aee4cba7a72
[INFO] running `Command { std: "docker" "start" "-a" "242313e6dca31c969a2b2fb799a4146daba8c260ed99a0080e646aee4cba7a72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "242313e6dca31c969a2b2fb799a4146daba8c260ed99a0080e646aee4cba7a72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "242313e6dca31c969a2b2fb799a4146daba8c260ed99a0080e646aee4cba7a72", kill_on_drop: false }`
[INFO] [stdout] 242313e6dca31c969a2b2fb799a4146daba8c260ed99a0080e646aee4cba7a72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+c04832643d70479988a3ad9d92b63d9bc95e9c6d" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec25077c56f2cb906a48916c5160309f5b0607e296ae076bddeb893dff852859
[INFO] running `Command { std: "docker" "start" "-a" "ec25077c56f2cb906a48916c5160309f5b0607e296ae076bddeb893dff852859", kill_on_drop: false }`
[INFO] [stderr]  Documenting lac v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "ec25077c56f2cb906a48916c5160309f5b0607e296ae076bddeb893dff852859", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec25077c56f2cb906a48916c5160309f5b0607e296ae076bddeb893dff852859", kill_on_drop: false }`
[INFO] [stdout] ec25077c56f2cb906a48916c5160309f5b0607e296ae076bddeb893dff852859
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+c04832643d70479988a3ad9d92b63d9bc95e9c6d" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 177a215fbcf1ea2caec9616249caad4f28c74072aa400a8f3364afd502d79a56
[INFO] running `Command { std: "docker" "start" "-a" "177a215fbcf1ea2caec9616249caad4f28c74072aa400a8f3364afd502d79a56", kill_on_drop: false }`
[INFO] [stderr]  Documenting lac v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "177a215fbcf1ea2caec9616249caad4f28c74072aa400a8f3364afd502d79a56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "177a215fbcf1ea2caec9616249caad4f28c74072aa400a8f3364afd502d79a56", kill_on_drop: false }`
[INFO] [stdout] 177a215fbcf1ea2caec9616249caad4f28c74072aa400a8f3364afd502d79a56