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# error kind ExecutionFailed
# pre-build errors command failed: exit status: 101
# rustc version rustc 1.98.0-nightly (01dfd7924 2026-06-15)
# docs.rs version docsrs 0.0.0 (886bc7a22b1adc4b387ce1343447fe3af98d9ce5 2026-06-14 )
# 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" "80cb04a30cca84716fdb52dac7106fe8af0dfbeee717a6d3e65b077a1e824633" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "rustdoc" "--lib" "-Zrustdoc-map" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--emit=invocation-specific\", \"--resource-suffix\", \"-20260615-1.98.0-nightly-01dfd7924\", \"--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: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [INFO] [stderr] warning: `rustbar` (manifest) generated 1 warning [INFO] [stderr] warning: target filter specified, but no targets matched; this is a no-op [INFO] [stderr] Documenting rustbar v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] error[E0464]: multiple candidates for `rmeta` dependency `libc` found [INFO] [stderr] --> src/lib.rs:3:1 [INFO] [stderr] | [INFO] [stderr] 3 | extern crate libc; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: candidate #1: /opt/rustwide/rustup-home/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d7079774e5b971fa.rmeta [INFO] [stderr] = note: candidate #2: /opt/rustwide/rustup-home/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-e40875523b518ea0.rmeta [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0464`. [INFO] [stderr] error: could not document `rustbar` [INFO] running `Command { std: "docker" "inspect" "80cb04a30cca84716fdb52dac7106fe8af0dfbeee717a6d3e65b077a1e824633", kill_on_drop: false }`