# rustc version rustc 1.99.0-nightly (d0babd8b6 2026-07-15)
# docs.rs version docsrs 0.0.0 (f1b150f0cd76f7cabcd39e1f4790ba771b28b5c4 2026-07-19 )
# 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" "50648ed40c02784820251c65d2ed8c83b84a995c9897f3989e85933319b13e9a" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2026-07-16" "rustdoc" "--lib" "-Zrustdoc-map" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--emit=html-non-static-files\", \"--resource-suffix\", \"-20260715-1.99.0-nightly-d0babd8b6\", \"--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: Cargo.toml: only one of `license` or `license-file` is necessary [INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression. [INFO] [stderr] `license-file` should be used if the package uses a non-standard license. [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information. [INFO] [stderr] warning: `array-append` (manifest) generated 1 warning [INFO] [stderr] warning: target filter specified, but no targets matched; this is a no-op [INFO] [stderr] Documenting array-append v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unknown lint: `rustdoc::missing_doc_code_examples` [INFO] [stderr] --> src/lib.rs:78:9 [INFO] [stderr] | [INFO] [stderr] 78 | #![deny(rustdoc::missing_doc_code_examples)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: the `rustdoc::missing_doc_code_examples` lint is unstable [INFO] [stderr] = note: see issue #101730 <https://github.com/rust-lang/rust/issues/101730> for more information [INFO] [stderr] = help: add `#![feature(rustdoc_missing_doc_code_examples)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2026-07-15; consider upgrading it if it is out of date [INFO] [stderr] = note: `#[warn(unknown_lints)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition name: `std` [INFO] [stderr] --> src/lib.rs:80:17 [INFO] [stderr] | [INFO] [stderr] 80 | #![cfg_attr(not(std), no_std)] [INFO] [stderr] | ^^^ help: found config with similar value: `feature = "std"` [INFO] [stderr] | [INFO] [stderr] = help: expected names are: `docsrs`, `feature`, and `test` and 33 more [INFO] [stderr] = help: consider using a Cargo feature instead [INFO] [stderr] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stderr] [lints.rust] [INFO] [stderr] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs` [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: `concat` is both a function and a macro [INFO] [stderr] --> src/lib.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | //! - [`concat`] which concatenates two arrays [INFO] [stderr] | ^^^^^^ ambiguous link [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default [INFO] [stderr] help: to link to the function, add parentheses [INFO] [stderr] | [INFO] [stderr] 6 | //! - [`concat()`] which concatenates two arrays [INFO] [stderr] | ++ [INFO] [stderr] help: to link to the macro, add an exclamation mark [INFO] [stderr] | [INFO] [stderr] 6 | //! - [`concat!`] which concatenates two arrays [INFO] [stderr] | + [INFO] [stderr] [INFO] [stderr] warning: `array-append` (lib doc) generated 3 warnings [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s [INFO] [stderr] Generated /opt/rustwide/target/x86_64-unknown-linux-gnu/doc/array_append/index.html [INFO] running `Command { std: "docker" "inspect" "50648ed40c02784820251c65d2ed8c83b84a995c9897f3989e85933319b13e9a", kill_on_drop: false }`