[INFO] fetching crate mt-dom 0.19.4...
[INFO] documenting mt-dom-0.19.4 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate mt-dom 0.19.4 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate mt-dom 0.19.4 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 mt-dom 0.19.4
[INFO] finished tweaking crates.io crate mt-dom 0.19.4
[INFO] tweaked toml for crates.io crate mt-dom 0.19.4 written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate crates.io crate mt-dom 0.19.4 already has a lockfile, it will not be regenerated
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 05a170e534398d4ff945c55ef09f8a5b9bd7b8a759cc0cebe294c82a7c095f30
[INFO] running `Command { std: "docker" "start" "-a" "05a170e534398d4ff945c55ef09f8a5b9bd7b8a759cc0cebe294c82a7c095f30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05a170e534398d4ff945c55ef09f8a5b9bd7b8a759cc0cebe294c82a7c095f30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05a170e534398d4ff945c55ef09f8a5b9bd7b8a759cc0cebe294c82a7c095f30", kill_on_drop: false }`
[INFO] [stdout] 05a170e534398d4ff945c55ef09f8a5b9bd7b8a759cc0cebe294c82a7c095f30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] dd4295d5c80e6aadcd81e5b1e6c6fa57bb84613408dd1a1055a66756fb192e2b
[INFO] running `Command { std: "docker" "start" "-a" "dd4295d5c80e6aadcd81e5b1e6c6fa57bb84613408dd1a1055a66756fb192e2b", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]  Documenting mt-dom v0.19.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `reason`
[INFO] [stdout]   --> src/diff/keyed.rs:14:137
[INFO] [stdout]    |
[INFO] [stdout] 14 | ...t old key5, due to forward matching rule.  See [reason]
[INFO] [stdout]    |                                                    ^^^^^^ no item named `reason` in scope
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout] 2  |     warnings,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(rustdoc::broken_intra_doc_links)]` implied by `#[warn(warnings)]`
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `reason`
[INFO] [stdout]   --> src/diff/keyed.rs:55:6
[INFO] [stdout]    |
[INFO] [stdout] 55 | /// [reason]: The reason is that old key3 is matched first with new key3, and since the old key5's position has passed the position of th...
[INFO] [stdout]    |      ^^^^^^ no item named `reason` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `0,1,2`
[INFO] [stdout]   --> src/patch.rs:57:64
[INFO] [stdout]    |
[INFO] [stdout] 57 | /// To traverse to the `<nav>` element we follow the TreePath([0,1,2]).
[INFO] [stdout]    |                                                                ^^^^^ no item named `0,1,2` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "dd4295d5c80e6aadcd81e5b1e6c6fa57bb84613408dd1a1055a66756fb192e2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd4295d5c80e6aadcd81e5b1e6c6fa57bb84613408dd1a1055a66756fb192e2b", kill_on_drop: false }`
[INFO] [stdout] dd4295d5c80e6aadcd81e5b1e6c6fa57bb84613408dd1a1055a66756fb192e2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] fae3417db7601312bf56db1c2df04daa48b20daf72eeada8dcc0d4d18d3076dc
[INFO] running `Command { std: "docker" "start" "-a" "fae3417db7601312bf56db1c2df04daa48b20daf72eeada8dcc0d4d18d3076dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]  Documenting mt-dom v0.19.4 (/opt/rustwide/workdir)
[INFO] [stdout] error: unresolved link to `reason`
[INFO] [stdout]   --> src/diff/keyed.rs:14:137
[INFO] [stdout]    |
[INFO] [stdout] 14 | ...t old key5, due to forward matching rule.  See [reason]
[INFO] [stdout]    |                                                    ^^^^^^ no item named `reason` in scope
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout] 2  |     warnings,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(rustdoc::broken_intra_doc_links)]` implied by `#[deny(warnings)]`
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unresolved link to `reason`
[INFO] [stdout]   --> src/diff/keyed.rs:55:6
[INFO] [stdout]    |
[INFO] [stdout] 55 | /// [reason]: The reason is that old key3 is matched first with new key3, and since the old key5's position has passed the position of th...
[INFO] [stdout]    |      ^^^^^^ no item named `reason` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unresolved link to `0,1,2`
[INFO] [stdout]   --> src/patch.rs:57:64
[INFO] [stdout]    |
[INFO] [stdout] 57 | /// To traverse to the `<nav>` element we follow the TreePath([0,1,2]).
[INFO] [stdout]    |                                                                ^^^^^ no item named `0,1,2` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `mt-dom`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name mt_dom src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat -Z unstable-options --document-private-items -C metadata=a3a16ccc9a918f1f -L dependency=/opt/rustwide/target/debug/deps --extern log=/opt/rustwide/target/debug/deps/liblog-e60afbaf99014ec3.rmeta --extern-html-root-url 'log=https://docs.rs/log/0.4.11/' -Zunstable-options --crate-version 0.19.4` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "fae3417db7601312bf56db1c2df04daa48b20daf72eeada8dcc0d4d18d3076dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fae3417db7601312bf56db1c2df04daa48b20daf72eeada8dcc0d4d18d3076dc", kill_on_drop: false }`
[INFO] [stdout] fae3417db7601312bf56db1c2df04daa48b20daf72eeada8dcc0d4d18d3076dc