[INFO] cloning repository https://github.com/emily-signet/sleepyhead-kdl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emily-signet/sleepyhead-kdl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femily-signet%2Fsleepyhead-kdl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femily-signet%2Fsleepyhead-kdl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a9e8afc93c95f1d2a1897f34ecd014f7d4b4bc54
[INFO] documenting emily-signet/sleepyhead-kdl against beta-2022-10-11 for beta-1.65-rustdoc-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femily-signet%2Fsleepyhead-kdl" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/emily-signet/sleepyhead-kdl on toolchain beta-2022-10-11
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-10-11" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/emily-signet/sleepyhead-kdl
[INFO] finished tweaking git repo https://github.com/emily-signet/sleepyhead-kdl
[INFO] tweaked toml for git repo https://github.com/emily-signet/sleepyhead-kdl written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/emily-signet/sleepyhead-kdl already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-10-11" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-10-11" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36d45ed8171c9ab07474598902346b0477339bdc2ea8512b240975f047c01b46
[INFO] running `Command { std: "docker" "start" "-a" "36d45ed8171c9ab07474598902346b0477339bdc2ea8512b240975f047c01b46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36d45ed8171c9ab07474598902346b0477339bdc2ea8512b240975f047c01b46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36d45ed8171c9ab07474598902346b0477339bdc2ea8512b240975f047c01b46", kill_on_drop: false }`
[INFO] [stdout] 36d45ed8171c9ab07474598902346b0477339bdc2ea8512b240975f047c01b46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-10-11" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 483c729bf82ac193cafd9629c8c0305fed5e693dbb0c0d9b93ac4e7962cb8fb3
[INFO] running `Command { std: "docker" "start" "-a" "483c729bf82ac193cafd9629c8c0305fed5e693dbb0c0d9b93ac4e7962cb8fb3", kill_on_drop: false }`
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling heapless v0.7.10
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling beef v0.5.1
[INFO] [stderr]     Checking lexical-util v0.8.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking spin v0.9.3
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking lexical-write-integer v0.8.3
[INFO] [stderr]     Checking lexical-parse-integer v0.8.3
[INFO] [stderr]     Checking lexical-parse-float v0.8.3
[INFO] [stderr]     Checking lexical-write-float v0.8.4
[INFO] [stderr]     Checking lexical-core v0.8.3
[INFO] [stderr]     Checking lexical v6.1.0
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]     Checking logos v0.12.0
[INFO] [stderr]  Documenting sleepyhead-kdl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: attributes on expressions are experimental
[INFO] [stdout]    --> src/parser.rs:30:9
[INFO] [stdout]     |
[INFO] [stdout] 30  |         #[allow(unreachable_patterns)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 209 |                         next_if!(self, KdlValues).ok_or(ParseError::TypeDescriptorWithNoValue)?;
[INFO] [stdout]     |                         ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information
[INFO] [stdout]     = note: this error originates in the macro `next_if` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: attributes on expressions are experimental
[INFO] [stdout]    --> src/parser.rs:30:9
[INFO] [stdout]     |
[INFO] [stdout] 30  |         #[allow(unreachable_patterns)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 260 |                 token_to_value!(next_if!(self, KdlValues).ok_or(ParseError::IncompleteProperty)?)
[INFO] [stdout]     |                                 ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information
[INFO] [stdout]     = note: this error originates in the macro `next_if` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `sleepyhead-kdl`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name sleepyhead_kdl src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="std"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=9181042e442389e6 -L dependency=/opt/rustwide/target/debug/deps --extern heapless=/opt/rustwide/target/debug/deps/libheapless-463b8c8c6ba96070.rmeta --extern lexical=/opt/rustwide/target/debug/deps/liblexical-ca4a8f16839f0a12.rmeta --extern logos=/opt/rustwide/target/debug/deps/liblogos-9f19b872c685ab38.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-eb49e3a086a73ccf.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "483c729bf82ac193cafd9629c8c0305fed5e693dbb0c0d9b93ac4e7962cb8fb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "483c729bf82ac193cafd9629c8c0305fed5e693dbb0c0d9b93ac4e7962cb8fb3", kill_on_drop: false }`
[INFO] [stdout] 483c729bf82ac193cafd9629c8c0305fed5e693dbb0c0d9b93ac4e7962cb8fb3