[INFO] fetching crate arg-derive 0.3.4...
[INFO] documenting arg-derive-0.3.4 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate arg-derive 0.3.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate arg-derive 0.3.4 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arg-derive 0.3.4
[INFO] finished tweaking crates.io crate arg-derive 0.3.4
[INFO] tweaked toml for crates.io crate arg-derive 0.3.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6dc447eef9f1ca3c80bb39ff7501eae886cac0d7bd49d51fb80c3b3b6b581bc1
[INFO] running `Command { std: "docker" "start" "-a" "6dc447eef9f1ca3c80bb39ff7501eae886cac0d7bd49d51fb80c3b3b6b581bc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6dc447eef9f1ca3c80bb39ff7501eae886cac0d7bd49d51fb80c3b3b6b581bc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dc447eef9f1ca3c80bb39ff7501eae886cac0d7bd49d51fb80c3b3b6b581bc1", kill_on_drop: false }`
[INFO] [stdout] 6dc447eef9f1ca3c80bb39ff7501eae886cac0d7bd49d51fb80c3b3b6b581bc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 739e729f608099e16a8dd3ff4ab08727fdb07afd674ae2d7e1f9b1ee8d0ee27a
[INFO] running `Command { std: "docker" "start" "-a" "739e729f608099e16a8dd3ff4ab08727fdb07afd674ae2d7e1f9b1ee8d0ee27a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking tabwriter v1.2.1
[INFO] [stderr]  Documenting arg-derive v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.80s
[INFO] running `Command { std: "docker" "inspect" "739e729f608099e16a8dd3ff4ab08727fdb07afd674ae2d7e1f9b1ee8d0ee27a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "739e729f608099e16a8dd3ff4ab08727fdb07afd674ae2d7e1f9b1ee8d0ee27a", kill_on_drop: false }`
[INFO] [stdout] 739e729f608099e16a8dd3ff4ab08727fdb07afd674ae2d7e1f9b1ee8d0ee27a
