[INFO] fetching crate synstructure 0.12.6...
[INFO] documenting synstructure-0.12.6 against beta-2022-05-20 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 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] 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" "+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-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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8002675dea16ba0b3ca94041ee845bf778f93878807a6860eb0aab68ef33092c
[INFO] running `Command { std: "docker" "start" "-a" "8002675dea16ba0b3ca94041ee845bf778f93878807a6860eb0aab68ef33092c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8002675dea16ba0b3ca94041ee845bf778f93878807a6860eb0aab68ef33092c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8002675dea16ba0b3ca94041ee845bf778f93878807a6860eb0aab68ef33092c", kill_on_drop: false }`
[INFO] [stdout] 8002675dea16ba0b3ca94041ee845bf778f93878807a6860eb0aab68ef33092c
[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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3b1c0115ebaf9ee41f572f20d053cf6edd19991d673916225615f8b3ebae51f
[INFO] running `Command { std: "docker" "start" "-a" "d3b1c0115ebaf9ee41f572f20d053cf6edd19991d673916225615f8b3ebae51f", 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 4.99s
[INFO] running `Command { std: "docker" "inspect" "d3b1c0115ebaf9ee41f572f20d053cf6edd19991d673916225615f8b3ebae51f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3b1c0115ebaf9ee41f572f20d053cf6edd19991d673916225615f8b3ebae51f", kill_on_drop: false }`
[INFO] [stdout] d3b1c0115ebaf9ee41f572f20d053cf6edd19991d673916225615f8b3ebae51f
[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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 3e3d6c8e69ac73ce1d302cf5d20d4c0f2b918381fb33d9ba45167e298fafc3d2
[INFO] running `Command { std: "docker" "start" "-a" "3e3d6c8e69ac73ce1d302cf5d20d4c0f2b918381fb33d9ba45167e298fafc3d2", 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 4.86s
[INFO] running `Command { std: "docker" "inspect" "3e3d6c8e69ac73ce1d302cf5d20d4c0f2b918381fb33d9ba45167e298fafc3d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e3d6c8e69ac73ce1d302cf5d20d4c0f2b918381fb33d9ba45167e298fafc3d2", kill_on_drop: false }`
[INFO] [stdout] 3e3d6c8e69ac73ce1d302cf5d20d4c0f2b918381fb33d9ba45167e298fafc3d2