# rustc version rustc 1.98.0-nightly (31a9463c6 2026-05-25)
# docs.rs version docsrs 0.0.0 (f16e33f3e6ac9fc9e4413728c5dd1b2ba1c6b799 2026-05-23 )
# build log [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" "DOCS_RS=1" "-w" "/opt/rustwide/workdir" "--user" "1001:1001" "248bde5c02e035541f9a45793e8ca4af7e139cca98a7c12e78073fe586813d5a" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "rustdoc" "--lib" "-Zrustdoc-map" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"--html-in-header\", \"./src/html/docs-header.html\", \"-Z\", \"unstable-options\", \"--emit=invocation-specific\", \"--resource-suffix\", \"-20260525-1.98.0-nightly-31a9463c6\", \"--static-root-path\", \"/-/rustdoc.static/\", \"--cap-lints\", \"warn\", \"--extern-html-root-takes-precedence\"]" "--offline" "-Zunstable-options" "--config=doc.extern-map.registries.crates-io=\"https://docs.rs/{pkg_name}/{version}/x86_64-unknown-linux-gnu\"" "-Zrustdoc-scrape-examples" "-j6" "--target" "x86_64-unknown-linux-gnu", kill_on_drop: false }` [INFO] [stderr] warning: target filter specified, but no targets matched; this is a no-op [INFO] [stderr] Documenting zero_based_index v0.2.2 (/opt/rustwide/workdir) [INFO] [stderr] warning: unexpected `cfg` condition value: `std` [INFO] [stderr] --> src/lib.rs:2:13 [INFO] [stderr] | [INFO] [stderr] 2 | #![cfg_attr(feature = "std", no_std)] [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: expected values for `feature` are: `const_fn`, `const_inherent_unchecked_arith`, `doc`, `include_display_mode_tex`, `nightly`, and `unchecked_math` [INFO] [stderr] = help: consider adding `std` as a feature in `Cargo.toml` [INFO] [stderr] = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration [INFO] [stderr] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stderr] [INFO] [stderr] warning: redundant explicit link target [INFO] [stderr] --> src/lib.rs:19:54 [INFO] [stderr] | [INFO] [stderr] 19 | /// from 0 to the stored value fits into [usize][core::primitive::usize], returns that cardinality [INFO] [stderr] | ----- ^^^^^^^^^^^^^^^^^^^^^^ explicit target is redundant [INFO] [stderr] | | [INFO] [stderr] | because label contains path that resolves to same destination [INFO] [stderr] | [INFO] [stderr] = note: when a link's destination is not specified, [INFO] [stderr] the label is used to resolve intra-doc links [INFO] [stderr] = note: `#[warn(rustdoc::redundant_explicit_links)]` on by default [INFO] [stderr] help: remove explicit link target [INFO] [stderr] | [INFO] [stderr] 19 - /// from 0 to the stored value fits into [usize][core::primitive::usize], returns that cardinality [INFO] [stderr] 19 + /// from 0 to the stored value fits into [usize], returns that cardinality [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: redundant explicit link target [INFO] [stderr] --> src/lib.rs:20:39 [INFO] [stderr] | [INFO] [stderr] 20 | /// as `Some` variant of [Option][core::option::Option]<[usize][core::primitive::usize]>. Otherwise (when [INFO] [stderr] | ------ ^^^^^^^^^^^^^^^^^^^^ explicit target is redundant [INFO] [stderr] | | [INFO] [stderr] | because label contains path that resolves to same destination [INFO] [stderr] | [INFO] [stderr] = note: when a link's destination is not specified, [INFO] [stderr] the label is used to resolve intra-doc links [INFO] [stderr] help: remove explicit link target [INFO] [stderr] | [INFO] [stderr] 20 - /// as `Some` variant of [Option][core::option::Option]<[usize][core::primitive::usize]>. Otherwise (when [INFO] [stderr] 20 + /// as `Some` variant of [Option]<[usize][core::primitive::usize]>. Otherwise (when [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: redundant explicit link target [INFO] [stderr] --> src/lib.rs:20:69 [INFO] [stderr] | [INFO] [stderr] 20 | /// as `Some` variant of [Option][core::option::Option]<[usize][core::primitive::usize]>. Otherwise (when [INFO] [stderr] | ----- ^^^^^^^^^^^^^^^^^^^^^^ explicit target is redundant [INFO] [stderr] | | [INFO] [stderr] | because label contains path that resolves to same destination [INFO] [stderr] | [INFO] [stderr] = note: when a link's destination is not specified, [INFO] [stderr] the label is used to resolve intra-doc links [INFO] [stderr] help: remove explicit link target [INFO] [stderr] | [INFO] [stderr] 20 - /// as `Some` variant of [Option][core::option::Option]<[usize][core::primitive::usize]>. Otherwise (when [INFO] [stderr] 20 + /// as `Some` variant of [Option][core::option::Option]<[usize]>. Otherwise (when [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `zero_based_index` (lib doc) generated 4 warnings [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s [INFO] [stderr] Generated /opt/rustwide/target/x86_64-unknown-linux-gnu/doc/zero_based_index/index.html [INFO] running `Command { std: "docker" "inspect" "248bde5c02e035541f9a45793e8ca4af7e139cca98a7c12e78073fe586813d5a", kill_on_drop: false }`