[INFO] fetching crate comacro 0.0.1...
[INFO] documenting comacro-0.0.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate comacro 0.0.1 into /workspace/builds/worker-111/source
[INFO] validating manifest of crates.io crate comacro 0.0.1 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 comacro 0.0.1
[INFO] finished tweaking crates.io crate comacro 0.0.1
[INFO] tweaked toml for crates.io crate comacro 0.0.1 written to /workspace/builds/worker-111/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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] 4ed3945e5f679ce7826bc80ee79fdfec159d875b105ec11fb711c1dd09e5ea8f
[INFO] running `Command { std: "docker" "start" "-a" "4ed3945e5f679ce7826bc80ee79fdfec159d875b105ec11fb711c1dd09e5ea8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ed3945e5f679ce7826bc80ee79fdfec159d875b105ec11fb711c1dd09e5ea8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ed3945e5f679ce7826bc80ee79fdfec159d875b105ec11fb711c1dd09e5ea8f", kill_on_drop: false }`
[INFO] [stdout] 4ed3945e5f679ce7826bc80ee79fdfec159d875b105ec11fb711c1dd09e5ea8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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] 410120ebab7c97bfecd6725ba23a4630045197bf2b53258befd7782e13ce3c1f
[INFO] running `Command { std: "docker" "start" "-a" "410120ebab7c97bfecd6725ba23a4630045197bf2b53258befd7782e13ce3c1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]  Documenting comacro v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/trace.rs:84:21
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let ((&x, rest)) = rest.split_first().unwrap();
[INFO] [stdout]    |                     ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 84 -                 let ((&x, rest)) = rest.split_first().unwrap();
[INFO] [stdout] 84 +                 let (&x, rest) = rest.split_first().unwrap();
[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 4.34s
[INFO] running `Command { std: "docker" "inspect" "410120ebab7c97bfecd6725ba23a4630045197bf2b53258befd7782e13ce3c1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "410120ebab7c97bfecd6725ba23a4630045197bf2b53258befd7782e13ce3c1f", kill_on_drop: false }`
[INFO] [stdout] 410120ebab7c97bfecd6725ba23a4630045197bf2b53258befd7782e13ce3c1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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] 1c2cb32df5883ee3f25055d3f41304d4fb699fbcfd12d1b105740e18c33a97f7
[INFO] running `Command { std: "docker" "start" "-a" "1c2cb32df5883ee3f25055d3f41304d4fb699fbcfd12d1b105740e18c33a97f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]  Documenting comacro v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.65s
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/trace.rs:84:21
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let ((&x, rest)) = rest.split_first().unwrap();
[INFO] [stdout]    |                     ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 84 -                 let ((&x, rest)) = rest.split_first().unwrap();
[INFO] [stdout] 84 +                 let (&x, rest) = rest.split_first().unwrap();
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1c2cb32df5883ee3f25055d3f41304d4fb699fbcfd12d1b105740e18c33a97f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c2cb32df5883ee3f25055d3f41304d4fb699fbcfd12d1b105740e18c33a97f7", kill_on_drop: false }`
[INFO] [stdout] 1c2cb32df5883ee3f25055d3f41304d4fb699fbcfd12d1b105740e18c33a97f7