[INFO] fetching crate synstructure 0.12.6...
[INFO] documenting synstructure-0.12.6 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate synstructure 0.12.6 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate synstructure 0.12.6 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 synstructure 0.12.6
[INFO] finished tweaking crates.io crate synstructure 0.12.6
[INFO] tweaked toml for crates.io crate synstructure 0.12.6 written to /workspace/builds/worker-10/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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded synstructure_test_traits v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 9b09bc7101e44892950a44c49334d296bfbdf75ae808ad04ac8c3360a8c1e6bb
[INFO] running `Command { std: "docker" "start" "-a" "9b09bc7101e44892950a44c49334d296bfbdf75ae808ad04ac8c3360a8c1e6bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b09bc7101e44892950a44c49334d296bfbdf75ae808ad04ac8c3360a8c1e6bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b09bc7101e44892950a44c49334d296bfbdf75ae808ad04ac8c3360a8c1e6bb", kill_on_drop: false }`
[INFO] [stdout] 9b09bc7101e44892950a44c49334d296bfbdf75ae808ad04ac8c3360a8c1e6bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] f1127357d7e944ab80dd1fd7d05df1a2ae6490414092e7756490d940b3df7c08
[INFO] running `Command { std: "docker" "start" "-a" "f1127357d7e944ab80dd1fd7d05df1a2ae6490414092e7756490d940b3df7c08", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]     Checking unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking unicode-xid v0.2.3
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]  Documenting synstructure v0.12.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `underscore_const`
[INFO] [stdout]     --> src/lib.rs:2052:57
[INFO] [stdout]      |
[INFO] [stdout] 2052 |     /// The `Structure` may also be confired with the [`underscore_const`] method
[INFO] [stdout]      |                                                         ^^^^^^^^^^^^^^^^ no item named `underscore_const` in scope
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]      = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.20s
[INFO] running `Command { std: "docker" "inspect" "f1127357d7e944ab80dd1fd7d05df1a2ae6490414092e7756490d940b3df7c08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1127357d7e944ab80dd1fd7d05df1a2ae6490414092e7756490d940b3df7c08", kill_on_drop: false }`
[INFO] [stdout] f1127357d7e944ab80dd1fd7d05df1a2ae6490414092e7756490d940b3df7c08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 7c44dd0839405463fa9f383b6614e4cdbb57b9fa1da665b08070510839eadd48
[INFO] running `Command { std: "docker" "start" "-a" "7c44dd0839405463fa9f383b6614e4cdbb57b9fa1da665b08070510839eadd48", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]     Checking unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking unicode-xid v0.2.3
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]  Documenting synstructure v0.12.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `underscore_const`
[INFO] [stdout]     --> src/lib.rs:2052:57
[INFO] [stdout]      |
[INFO] [stdout] 2052 |     /// The `Structure` may also be confired with the [`underscore_const`] method
[INFO] [stdout]      |                                                         ^^^^^^^^^^^^^^^^ no item named `underscore_const` in scope
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]      = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.52s
[INFO] running `Command { std: "docker" "inspect" "7c44dd0839405463fa9f383b6614e4cdbb57b9fa1da665b08070510839eadd48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c44dd0839405463fa9f383b6614e4cdbb57b9fa1da665b08070510839eadd48", kill_on_drop: false }`
[INFO] [stdout] 7c44dd0839405463fa9f383b6614e4cdbb57b9fa1da665b08070510839eadd48