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# rustc version rustc 1.92.0-nightly (595b9a498 2025-10-03)
# docs.rs version docsrs 0.6.0 (f42173de 2025-09-12)
# build log [INFO] running `Command { std: "docker" "create" "-v" "/home/cratesfyi/workspace-builder/builds/backdrop-0.1.11/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace-builder/builds/backdrop-0.1.11/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "rustdoc" "--lib" "-Zrustdoc-map" "--features" "doc" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--emit=invocation-specific\", \"--resource-suffix\", \"-20251003-1.92.0-nightly-595b9a498\", \"--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: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 0bf9a2a26eab4ff143958206e9a219c8853cf57134249dc6826764d9169a07f0 [INFO] running `Command { std: "docker" "start" "-a" "0bf9a2a26eab4ff143958206e9a219c8853cf57134249dc6826764d9169a07f0", kill_on_drop: false }` [INFO] [stderr] Checking backdrop v0.1.11 (/opt/rustwide/workdir) [INFO] [stderr] warning: failed to check lib in package `backdrop` as a prerequisite for scraping examples from: example "comparison" [INFO] [stderr] Try running with `--verbose` to see the error message. [INFO] [stderr] If an example should not be scanned, then consider adding `doc-scrape-examples = false` to its `[[example]]` definition in Cargo.toml [INFO] [stderr] warning: `backdrop` (lib) generated 1 warning [INFO] [stderr] Scraping backdrop v0.1.11 (/opt/rustwide/workdir) [INFO] [stderr] warning: failed to scan example "comparison" in package `backdrop` for example code usage [INFO] [stderr] Try running with `--verbose` to see the error message. [INFO] [stderr] If an example should not be scanned, then consider adding `doc-scrape-examples = false` to its `[[example]]` definition in Cargo.toml [INFO] [stderr] warning: `backdrop` (example "comparison") generated 1 warning [INFO] [stderr] Documenting backdrop v0.1.11 (/opt/rustwide/workdir) [INFO] [stderr] error[E0557]: feature has been removed [INFO] [stderr] --> src/lib.rs:2:38 [INFO] [stderr] | [INFO] [stderr] 2 | #![cfg_attr(feature = "doc", feature(doc_auto_cfg))] [INFO] [stderr] | ^^^^^^^^^^^^ feature has been removed [INFO] [stderr] | [INFO] [stderr] = note: removed in CURRENT_RUSTC_VERSION; see <https://github.com/rust-lang/rust/pull/138907> for more information [INFO] [stderr] = note: merged into `doc_cfg` [INFO] [stderr] [INFO] [stderr] error: Compilation failed, aborting rustdoc [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0557`. [INFO] [stderr] error: could not document `backdrop` [INFO] running `Command { std: "docker" "inspect" "0bf9a2a26eab4ff143958206e9a219c8853cf57134249dc6826764d9169a07f0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0bf9a2a26eab4ff143958206e9a219c8853cf57134249dc6826764d9169a07f0", kill_on_drop: false }` [INFO] [stdout] 0bf9a2a26eab4ff143958206e9a219c8853cf57134249dc6826764d9169a07f0