[INFO] fetching crate restricted-sparse-merkle-tree 0.4.0-rc2...
[INFO] documenting restricted-sparse-merkle-tree-0.4.0-rc2 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate restricted-sparse-merkle-tree 0.4.0-rc2 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate restricted-sparse-merkle-tree 0.4.0-rc2 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] removed /workspace/builds/worker-21/source/rust-toolchain
[INFO] started tweaking crates.io crate restricted-sparse-merkle-tree 0.4.0-rc2
[INFO] finished tweaking crates.io crate restricted-sparse-merkle-tree 0.4.0-rc2
[INFO] tweaked toml for crates.io crate restricted-sparse-merkle-tree 0.4.0-rc2 written to /workspace/builds/worker-21/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]  Downloading crates ...
[INFO] [stderr]   Downloaded blake2b-rs v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] ecb53c9837221981b592ea278d61582d9f5301fb85fadc6ce2fbe2f48a33d738
[INFO] running `Command { std: "docker" "start" "-a" "ecb53c9837221981b592ea278d61582d9f5301fb85fadc6ce2fbe2f48a33d738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecb53c9837221981b592ea278d61582d9f5301fb85fadc6ce2fbe2f48a33d738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecb53c9837221981b592ea278d61582d9f5301fb85fadc6ce2fbe2f48a33d738", kill_on_drop: false }`
[INFO] [stdout] ecb53c9837221981b592ea278d61582d9f5301fb85fadc6ce2fbe2f48a33d738
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] a77862334307b06af5d6db40c0417cb82795fca12687f47a3e525760fb27b704
[INFO] running `Command { std: "docker" "start" "-a" "a77862334307b06af5d6db40c0417cb82795fca12687f47a3e525760fb27b704", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling blake2b-rs v0.1.5
[INFO] [stderr]  Documenting restricted-sparse-merkle-tree v0.4.0-rc2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.83s
[INFO] running `Command { std: "docker" "inspect" "a77862334307b06af5d6db40c0417cb82795fca12687f47a3e525760fb27b704", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a77862334307b06af5d6db40c0417cb82795fca12687f47a3e525760fb27b704", kill_on_drop: false }`
[INFO] [stdout] a77862334307b06af5d6db40c0417cb82795fca12687f47a3e525760fb27b704
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 4a5296cc1b9507d7066c0cd21f87ee2d151301e44dfea0b1279f74bb32fd629e
[INFO] running `Command { std: "docker" "start" "-a" "4a5296cc1b9507d7066c0cd21f87ee2d151301e44dfea0b1279f74bb32fd629e", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling blake2b-rs v0.1.5
[INFO] [stderr]  Documenting restricted-sparse-merkle-tree v0.4.0-rc2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.45s
[INFO] running `Command { std: "docker" "inspect" "4a5296cc1b9507d7066c0cd21f87ee2d151301e44dfea0b1279f74bb32fd629e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a5296cc1b9507d7066c0cd21f87ee2d151301e44dfea0b1279f74bb32fd629e", kill_on_drop: false }`
[INFO] [stdout] 4a5296cc1b9507d7066c0cd21f87ee2d151301e44dfea0b1279f74bb32fd629e