[INFO] fetching crate restricted-sparse-merkle-tree 0.4.0-rc2...
[INFO] documenting restricted-sparse-merkle-tree-0.4.0-rc2 against beta-2022-05-20 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 beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 336f2ffe61a1ace0ccd68999beddae0b2ececc1723497dfc507947f1b35a5272
[INFO] running `Command { std: "docker" "start" "-a" "336f2ffe61a1ace0ccd68999beddae0b2ececc1723497dfc507947f1b35a5272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "336f2ffe61a1ace0ccd68999beddae0b2ececc1723497dfc507947f1b35a5272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "336f2ffe61a1ace0ccd68999beddae0b2ececc1723497dfc507947f1b35a5272", kill_on_drop: false }`
[INFO] [stdout] 336f2ffe61a1ace0ccd68999beddae0b2ececc1723497dfc507947f1b35a5272
[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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3db744db1d59787d09d42fa85edadf3f7e26a36d3943138942702a941e8f733
[INFO] running `Command { std: "docker" "start" "-a" "c3db744db1d59787d09d42fa85edadf3f7e26a36d3943138942702a941e8f733", 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 3.26s
[INFO] running `Command { std: "docker" "inspect" "c3db744db1d59787d09d42fa85edadf3f7e26a36d3943138942702a941e8f733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3db744db1d59787d09d42fa85edadf3f7e26a36d3943138942702a941e8f733", kill_on_drop: false }`
[INFO] [stdout] c3db744db1d59787d09d42fa85edadf3f7e26a36d3943138942702a941e8f733
[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" "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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 6dd5e879f6c3b582db15ed8e43ff74e97eba10a1434bcb74a305cd283608c7f9
[INFO] running `Command { std: "docker" "start" "-a" "6dd5e879f6c3b582db15ed8e43ff74e97eba10a1434bcb74a305cd283608c7f9", 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 4.46s
[INFO] running `Command { std: "docker" "inspect" "6dd5e879f6c3b582db15ed8e43ff74e97eba10a1434bcb74a305cd283608c7f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dd5e879f6c3b582db15ed8e43ff74e97eba10a1434bcb74a305cd283608c7f9", kill_on_drop: false }`
[INFO] [stdout] 6dd5e879f6c3b582db15ed8e43ff74e97eba10a1434bcb74a305cd283608c7f9