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# rustc version rustc 1.95.0-nightly (f60a0f1bc 2026-02-02)
# docs.rs version docsrs 0.1.0 (db72ef84 2026-01-29 )
# build log [INFO] running `Command { std: "docker" "create" "-v" "/home/cratesfyi/workspace/builds/coreutils-0.6.0/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace/builds/coreutils-0.6.0/source:/opt/rustwide/workdir:ro,Z" "-v" "/home/cratesfyi/workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/home/cratesfyi/workspace/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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "rustdoc" "--lib" "-Zrustdoc-map" "--all-features" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--emit=invocation-specific\", \"--resource-suffix\", \"-20260202-1.95.0-nightly-f60a0f1bc\", \"--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] 4510aaed090c9afa5cd0ada4d6a5edf73b3a2bcf3ddb0592e5c328ab46e1ac2d [INFO] running `Command { std: "docker" "start" "-a" "4510aaed090c9afa5cd0ada4d6a5edf73b3a2bcf3ddb0592e5c328ab46e1ac2d", kill_on_drop: false }` [INFO] [stderr] warning: target filter specified, but no targets matched; this is a no-op [INFO] [stderr] Compiling selinux-sys v0.6.15 [INFO] [stderr] Compiling fts-sys v0.2.17 [INFO] [stderr] Compiling uu_stdbuf v0.6.0 [INFO] [stderr] Checking num-prime v0.4.4 [INFO] [stderr] Compiling coreutils v0.6.0 (/opt/rustwide/workdir) [INFO] [stderr] error: failed to run custom build command for `uu_stdbuf v0.6.0` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/uu_stdbuf-ddb152779fe19b6b/build-script-build` (exit status: 1) [INFO] [stderr] --- stdout [INFO] [stderr] cargo:rerun-if-changed=build.rs [INFO] [stderr] cargo:rerun-if-changed=src/libstdbuf/src/libstdbuf.rs [INFO] [stderr] [INFO] [stderr] --- stderr [INFO] [stderr] [INFO] [stderr] Error: The 'feat_external_libstdbuf' feature requires the LIBSTDBUF_DIR environment variable to be set. [INFO] [stderr] Usage: LIBSTDBUF_DIR=/path/to/lib/directory cargo build --features feat_external_libstdbuf [INFO] [stderr] Example: LIBSTDBUF_DIR=/usr/lib cargo build --features feat_external_libstdbuf [INFO] [stderr] [INFO] [stderr] This directory should point to where libstdbuf.so / libstdbuf.dylib will be installed on the target system. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "4510aaed090c9afa5cd0ada4d6a5edf73b3a2bcf3ddb0592e5c328ab46e1ac2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4510aaed090c9afa5cd0ada4d6a5edf73b3a2bcf3ddb0592e5c328ab46e1ac2d", kill_on_drop: false }` [INFO] [stdout] 4510aaed090c9afa5cd0ada4d6a5edf73b3a2bcf3ddb0592e5c328ab46e1ac2d