### Rust Build Command for spine2d Documentation

Source: https://docs.rs/crate/spine2d/0.2.0/builds/2748116/aarch64-unknown-linux-gnu_json

This snippet shows the Docker command used to build the documentation for the spine2d crate. It specifies the Rust compiler version, docs.rs version, and various build configurations including target platforms and feature flags. The output is in JSON format.

```shell
# rustc version
rustc 1.94.0-nightly (24139cf84 2025-12-20)# docs.rs version
docsrs 0.1.0 (e6d7c66e 2025-12-21 )# build log
[INFO] running `Command { std: "docker" "create" "-v" "/home/cratesfyi/workspace-builder/builds/spine2d-0.2.0/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace-builder/builds/spine2d-0.2.0/source:/opt/rustwide/workdir:ro,Z" "-v" "/home/cratesfyi/workspace-builder/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/home/cratesfyi/workspace-builder/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "DOCS_RS=1" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "6442450944" "--cpus" "6" "--user" "1001:1001" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "rustdoc" "--lib" "-Zrustdoc-map" "--features" "" "--no-default-features" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--output-format\", \"json\", \"--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}/aarch64-unknown-linux-gnu\"" "-Zrustdoc-scrape-examples" "-j6" "--target" "aarch64-unknown-linux-gnu", kill_on_drop: false }`
[INFO] [stdout] cf294fe53c7e9988835e4ee2beb9bd3c8c3e3cef709906a82c4fea99d2f32f32
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cf294fe53c7e9988835e4ee2beb9bd3c8c3e3cef709906a82c4fea99d2f32f32", kill_on_drop: false }`
[INFO] [stderr] warning: target filter specified, but no targets matched; this is a no-op
[INFO] [stderr]  Documenting spine2d v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "cf294fe53c7e9988835e4ee2beb9bd3c8c3e3cef709906a82c4fea99d2f32f32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf294fe53c7e9988835e4ee2beb9bd3c8c3e3cef709906a82c4fea99d2f32f32", kill_on_drop: false }`
[INFO] [stdout] cf294fe53c7e9988835e4ee2beb9bd3c8c3e3cef709906a82c4fea99d2f32f32
```

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