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# error kind ExecutionFailed
# pre-build errors command failed: exit status: 101
# rustc version rustc 1.99.0-nightly (969b803cb 2026-08-09)
# docs.rs version docsrs 0.0.0 (c0e43eba3fa5e6341d933cf845300a19b1ac3e4e 2026-08-06 )
# 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" "831feb67fa90671f1053d91c71a4fb7b530635e1c647b7810c0a2a685a4f228f" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "rustdoc" "--lib" "-Zrustdoc-map" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--emit=html-non-static-files\", \"--resource-suffix\", \"-20260809-1.99.0-nightly-969b803cb\", \"--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: target filter specified, but no targets matched; this is a no-op [INFO] [stderr] Checking rustix v0.36.17 [INFO] [stderr] Compiling ss58-registry v1.51.0 [INFO] [stderr] Checking futures-executor v0.3.33 [INFO] [stderr] Checking hmac-drbg v0.3.0 [INFO] [stderr] Checking secp256k1-sys v0.6.1 [INFO] [stderr] Checking sp-tracing v11.0.0 [INFO] [stderr] Checking unicode-normalization v0.1.25 [INFO] [stderr] Checking parking_lot_core v0.9.12 [INFO] [stderr] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustix-0.36.17/src/backend/linux_raw/io/errno.rs:28:25 [INFO] [stderr] | [INFO] [stderr] 28 | #[cfg_attr(rustc_attrs, rustc_layout_scalar_valid_range_start(0xf001))] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustix-0.36.17/src/backend/linux_raw/io/errno.rs:29:25 [INFO] [stderr] | [INFO] [stderr] 29 | #[cfg_attr(rustc_attrs, rustc_layout_scalar_valid_range_end(0xffff))] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Checking pbkdf2 v0.8.0 [INFO] [stderr] error: cannot find attribute `rustc_layout_scalar_valid_range_start` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustix-0.36.17/src/backend/linux_raw/io/errno.rs:28:25 [INFO] [stderr] | [INFO] [stderr] 28 | #[cfg_attr(rustc_attrs, rustc_layout_scalar_valid_range_start(0xf001))] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `rustc_layout_scalar_valid_range_end` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustix-0.36.17/src/backend/linux_raw/io/errno.rs:29:25 [INFO] [stderr] | [INFO] [stderr] 29 | #[cfg_attr(rustc_attrs, rustc_layout_scalar_valid_range_end(0xffff))] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Checking hmac v0.11.0 [INFO] [stderr] Checking curve25519-dalek v2.1.3 [INFO] [stderr] Compiling sp-runtime-interface-proc-macro v12.0.0 [INFO] [stderr] Checking num-format v0.4.4 [INFO] [stderr] Checking libsecp256k1-core v0.3.0 [INFO] [stderr] Checking merlin v2.0.1 [INFO] [stderr] Checking sha3 v0.10.9 [INFO] [stderr] Checking twox-hash v1.6.3 [INFO] [stderr] Checking pbkdf2 v0.11.0 [INFO] [stderr] Compiling dyn-clonable-impl v0.9.2 [INFO] [stderr] Checking arrayvec v0.5.2 [INFO] [stderr] Checking dyn-clone v1.0.20 [INFO] [stderr] Checking base64 v0.22.1 [INFO] [stderr] Checking rustc-hash v1.1.0 [INFO] [stderr] error: could not compile `rustix` (lib) due to 4 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "831feb67fa90671f1053d91c71a4fb7b530635e1c647b7810c0a2a685a4f228f", kill_on_drop: false }`