[INFO] fetching crate flat-tree 5.0.0...
[INFO] documenting flat-tree-5.0.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate flat-tree 5.0.0 into /workspace/builds/worker-104/source
[INFO] validating manifest of crates.io crate flat-tree 5.0.0 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 flat-tree 5.0.0
[INFO] finished tweaking crates.io crate flat-tree 5.0.0
[INFO] tweaked toml for crates.io crate flat-tree 5.0.0 written to /workspace/builds/worker-104/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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] af2474819c4a69db9bcd8ab2b0dacaf5bbb5d9837f03a08569c3deb0402ddf52
[INFO] running `Command { std: "docker" "start" "-a" "af2474819c4a69db9bcd8ab2b0dacaf5bbb5d9837f03a08569c3deb0402ddf52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af2474819c4a69db9bcd8ab2b0dacaf5bbb5d9837f03a08569c3deb0402ddf52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af2474819c4a69db9bcd8ab2b0dacaf5bbb5d9837f03a08569c3deb0402ddf52", kill_on_drop: false }`
[INFO] [stdout] af2474819c4a69db9bcd8ab2b0dacaf5bbb5d9837f03a08569c3deb0402ddf52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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] fe1cc62630d23b1a2e0292958f83b4b1b766a54d8361927c5e0f40000adea591
[INFO] running `Command { std: "docker" "start" "-a" "fe1cc62630d23b1a2e0292958f83b4b1b766a54d8361927c5e0f40000adea591", kill_on_drop: false }`
[INFO] [stderr]  Documenting flat-tree v5.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/iterator.rs:262:5
[INFO] [stdout]     |
[INFO] [stdout] 262 |     ((1 << 30) * (1 << (n - 30)))
[INFO] [stdout]     |     ^                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 262 -     ((1 << 30) * (1 << (n - 30)))
[INFO] [stdout] 262 +     (1 << 30) * (1 << (n - 30))
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "fe1cc62630d23b1a2e0292958f83b4b1b766a54d8361927c5e0f40000adea591", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe1cc62630d23b1a2e0292958f83b4b1b766a54d8361927c5e0f40000adea591", kill_on_drop: false }`
[INFO] [stdout] fe1cc62630d23b1a2e0292958f83b4b1b766a54d8361927c5e0f40000adea591
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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] 0254a94f9f8c70015c56899bb8fee30ceae8ae97df1a6e836d50e155fc27d729
[INFO] running `Command { std: "docker" "start" "-a" "0254a94f9f8c70015c56899bb8fee30ceae8ae97df1a6e836d50e155fc27d729", kill_on_drop: false }`
[INFO] [stderr]  Documenting flat-tree v5.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/iterator.rs:262:5
[INFO] [stdout]     |
[INFO] [stdout] 262 |     ((1 << 30) * (1 << (n - 30)))
[INFO] [stdout]     |     ^                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 262 -     ((1 << 30) * (1 << (n - 30)))
[INFO] [stdout] 262 +     (1 << 30) * (1 << (n - 30))
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "0254a94f9f8c70015c56899bb8fee30ceae8ae97df1a6e836d50e155fc27d729", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0254a94f9f8c70015c56899bb8fee30ceae8ae97df1a6e836d50e155fc27d729", kill_on_drop: false }`
[INFO] [stdout] 0254a94f9f8c70015c56899bb8fee30ceae8ae97df1a6e836d50e155fc27d729