[INFO] fetching crate rcomb 0.6.6...
[INFO] documenting rcomb-0.6.6 against 1.99.0-beta.8 for beta-rustdoc-1.100
[INFO] extracting crate rcomb 0.6.6 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate rcomb 0.6.6
[INFO] finished tweaking crates.io crate rcomb 0.6.6
[INFO] tweaked toml for crates.io crate rcomb 0.6.6 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rcomb 0.6.6 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rcomb 0.6.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nibble_vec v0.1.0
[INFO] [stderr]   Downloaded endian-type v0.2.0
[INFO] [stderr]   Downloaded uf_rush v0.2.1
[INFO] [stderr]   Downloaded divisors v0.2.1
[INFO] [stderr]   Downloaded find-msvc-tools v0.1.10
[INFO] [stderr]   Downloaded kdam v0.6.4
[INFO] [stderr]   Downloaded radix_trie v0.3.0
[INFO] [stderr]   Downloaded cc v1.4.2
[INFO] [stderr]   Downloaded itertools v0.15.0
[INFO] [stderr]   Downloaded prime-factor v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 1ae8a55dfe039bb4b4678001839494d226c06f7783ac1d5ef2c376c494ea31b2
[INFO] running `Command { std: "docker" "start" "1ae8a55dfe039bb4b4678001839494d226c06f7783ac1d5ef2c376c494ea31b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ae8a55dfe039bb4b4678001839494d226c06f7783ac1d5ef2c376c494ea31b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1ae8a55dfe039bb4b4678001839494d226c06f7783ac1d5ef2c376c494ea31b2" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ae8a55dfe039bb4b4678001839494d226c06f7783ac1d5ef2c376c494ea31b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1ae8a55dfe039bb4b4678001839494d226c06f7783ac1d5ef2c376c494ea31b2" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling serde_core v1.0.229
[INFO] [stderr]     Checking smallvec v1.15.2
[INFO] [stderr]     Checking memchr v2.8.3
[INFO] [stderr]     Checking ryu v1.0.23
[INFO] [stderr]     Checking endian-type v0.2.0
[INFO] [stderr]     Checking either v1.17.0
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking prime-factor v0.7.0
[INFO] [stderr]     Checking radix_trie v0.3.0
[INFO] [stderr]     Checking itertools v0.15.0
[INFO] [stderr]     Checking csv-core v0.1.13
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-iter v0.1.46
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking divisors v0.2.1
[INFO] [stderr]     Checking csv v1.4.0
[INFO] [stderr]  Documenting rcomb v0.6.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `Self::par_dedup`
[INFO] [stdout]   --> src/collections/map.rs:32:49
[INFO] [stdout]    |
[INFO] [stdout] 32 | ...up) or [`par_dedup`](Self::par_dedup) after these methods to restore the guarantees unless it is known they indeed were not viola...
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^ the struct `CombMap` has no field or associated item named `par_dedup`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Self::par_dedup`
[INFO] [stdout]    --> src/collections/map.rs:382:77
[INFO] [stdout]     |
[INFO] [stdout] 382 |     /// To restore key uniqueness, use [`dedup`](Self::dedup) or [`par_dedup`](Self::par_dedup).
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^^^^^ the struct `CombMap` has no field or associated item named `par_dedup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Self::par_dedup`
[INFO] [stdout]    --> src/collections/map.rs:399:77
[INFO] [stdout]     |
[INFO] [stdout] 399 |     /// To restore key uniqueness, use [`dedup`](Self::dedup) or [`par_dedup`](Self::par_dedup).
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^^^^^ the struct `CombMap` has no field or associated item named `par_dedup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Self::par_dedup`
[INFO] [stdout]    --> src/collections/map.rs:417:77
[INFO] [stdout]     |
[INFO] [stdout] 417 |     /// To restore key uniqueness, use [`dedup`](Self::dedup) or [`par_dedup`](Self::par_dedup).
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^^^^^ the struct `CombMap` has no field or associated item named `par_dedup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Self::par_dedup`
[INFO] [stdout]    --> src/collections/map.rs:427:77
[INFO] [stdout]     |
[INFO] [stdout] 427 |     /// To restore key uniqueness, use [`dedup`](Self::dedup) or [`par_dedup`](Self::par_dedup).
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^^^^^ the struct `CombMap` has no field or associated item named `par_dedup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Self::par_dedup`
[INFO] [stdout]    --> src/collections/map.rs:449:77
[INFO] [stdout]     |
[INFO] [stdout] 449 |     /// To restore key uniqueness, use [`dedup`](Self::dedup) or [`par_dedup`](Self::par_dedup).
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^^^^^ the struct `CombMap` has no field or associated item named `par_dedup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Self::par_dedup`
[INFO] [stdout]    --> src/collections/map.rs:483:77
[INFO] [stdout]     |
[INFO] [stdout] 483 |     /// To restore key uniqueness, use [`dedup`](Self::dedup) or [`par_dedup`](Self::par_dedup).
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^^^^^ the struct `CombMap` has no field or associated item named `par_dedup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Self::par_dedup`
[INFO] [stdout]    --> src/collections/map.rs:502:77
[INFO] [stdout]     |
[INFO] [stdout] 502 |     /// To restore key uniqueness, use [`dedup`](Self::dedup) or [`par_dedup`](Self::par_dedup).
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^^^^^ the struct `CombMap` has no field or associated item named `par_dedup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Self::par_dedup`
[INFO] [stdout]   --> src/collections/set.rs:26:49
[INFO] [stdout]    |
[INFO] [stdout] 26 | ...up) or [`par_dedup`](Self::par_dedup) after these methods to restore the guarantees unless it is known they indeed were not viola...
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^ the struct `CombSet` has no field or associated item named `par_dedup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Self::par_dedup`
[INFO] [stdout]    --> src/collections/set.rs:149:78
[INFO] [stdout]     |
[INFO] [stdout] 149 |     /// To restore item uniqueness, use [`dedup`](Self::dedup) or [`par_dedup`](Self::par_dedup).
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^^^^^^ the struct `CombSet` has no field or associated item named `par_dedup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Self::par_dedup`
[INFO] [stdout]    --> src/collections/set.rs:159:77
[INFO] [stdout]     |
[INFO] [stdout] 159 |     /// To restore key uniqueness, use [`dedup`](Self::dedup) or [`par_dedup`](Self::par_dedup).
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^^^^^ the struct `CombSet` has no field or associated item named `par_dedup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Self::par_dedup`
[INFO] [stdout]    --> src/collections/set.rs:165:77
[INFO] [stdout]     |
[INFO] [stdout] 165 |     /// To restore key uniqueness, use [`dedup`](Self::dedup) or [`par_dedup`](Self::par_dedup).
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^^^^^ the struct `CombSet` has no field or associated item named `par_dedup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Self::par_dedup`
[INFO] [stdout]    --> src/collections/set.rs:171:77
[INFO] [stdout]     |
[INFO] [stdout] 171 |     /// To restore key uniqueness, use [`dedup`](Self::dedup) or [`par_dedup`](Self::par_dedup).
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^^^^^ the struct `CombSet` has no field or associated item named `par_dedup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Self::par_dedup`
[INFO] [stdout]    --> src/collections/set.rs:177:77
[INFO] [stdout]     |
[INFO] [stdout] 177 |     /// To restore key uniqueness, use [`dedup`](Self::dedup) or [`par_dedup`](Self::par_dedup).
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^^^^^ the struct `CombSet` has no field or associated item named `par_dedup`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]   --> src/collections/map.rs:27:62
[INFO] [stdout]    |
[INFO] [stdout] 27 | /// If key equality can be quickly computed, use [`HashMap`](std::collections::HashMap) instead.
[INFO] [stdout]    |                                                   ---------  ^^^^^^^^^^^^^^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]    |                                                   |
[INFO] [stdout]    |                                                   because label contains path that resolves to same destination
[INFO] [stdout]    |
[INFO] [stdout]    = note: when a link's destination is not specified,
[INFO] [stdout]            the label is used to resolve intra-doc links
[INFO] [stdout]    = note: `#[warn(rustdoc::redundant_explicit_links)]` on by default
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]    |
[INFO] [stdout] 27 - /// If key equality can be quickly computed, use [`HashMap`](std::collections::HashMap) instead.
[INFO] [stdout] 27 + /// If key equality can be quickly computed, use [`HashMap`] instead.
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]   --> src/collections/set.rs:21:62
[INFO] [stdout]    |
[INFO] [stdout] 21 | /// If key equality can be quickly computed, use [`HashSet`](std::collections::HashSet) instead.
[INFO] [stdout]    |                                                   ---------  ^^^^^^^^^^^^^^^^^^^^^^^^^ explicit target is redundant
[INFO] [stdout]    |                                                   |
[INFO] [stdout]    |                                                   because label contains path that resolves to same destination
[INFO] [stdout]    |
[INFO] [stdout]    = note: when a link's destination is not specified,
[INFO] [stdout]            the label is used to resolve intra-doc links
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]    |
[INFO] [stdout] 21 - /// If key equality can be quickly computed, use [`HashSet`](std::collections::HashSet) instead.
[INFO] [stdout] 21 + /// If key equality can be quickly computed, use [`HashSet`] instead.
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.66s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/rcomb/index.html
[INFO] running `Command { std: "docker" "inspect" "1ae8a55dfe039bb4b4678001839494d226c06f7783ac1d5ef2c376c494ea31b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1ae8a55dfe039bb4b4678001839494d226c06f7783ac1d5ef2c376c494ea31b2" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "rustdoc" "--lib" "-Zrustdoc-map" "--all-features" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.22
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.20
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.7
[INFO] [stderr]     Checking bitflags v2.13.1
[INFO] [stderr]     Checking indexmap v2.14.0
[INFO] [stderr]     Checking fixedbitset v0.5.7
[INFO] [stderr]     Checking uf_rush v0.2.1
[INFO] [stderr]     Checking petgraph v0.8.3
[INFO] [stderr]     Checking rayon-core v1.13.0
[INFO] [stderr]     Checking terminal_size v0.4.4
[INFO] [stderr]     Checking rayon v1.12.0
[INFO] [stderr]     Checking kdam v0.6.4
[INFO] [stderr]  Documenting rcomb v0.6.6 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: the `!` type is experimental
[INFO] [stdout]    --> src/objects/embedded_graph.rs:586:21
[INFO] [stdout]     |
[INFO] [stdout] 586 |     type Certificate = !;
[INFO] [stdout]     |                        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stdout]     = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-09-26; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `rcomb`
[INFO] running `Command { std: "docker" "inspect" "1ae8a55dfe039bb4b4678001839494d226c06f7783ac1d5ef2c376c494ea31b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ae8a55dfe039bb4b4678001839494d226c06f7783ac1d5ef2c376c494ea31b2", kill_on_drop: false }`
[INFO] [stdout] 1ae8a55dfe039bb4b4678001839494d226c06f7783ac1d5ef2c376c494ea31b2
