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# error kind ExecutionFailed
# pre-build errors command failed: exit status: 101
# rustc version rustc 1.98.0-nightly (23a3312d9 2026-05-23)
# docs.rs version docsrs 0.0.0 (f16e33f3e6ac9fc9e4413728c5dd1b2ba1c6b799 2026-05-23 )
# 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" "63bddeaa7408468ae0337bc5ec5f2c46f93717087f18f1f130ea6c56fc968a67" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "rustdoc" "--lib" "-Zrustdoc-map" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--emit=invocation-specific\", \"--resource-suffix\", \"-20260523-1.98.0-nightly-23a3312d9\", \"--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] Documenting libbitcoin v0.3.0 (/opt/rustwide/workdir) [INFO] [stderr] error[E0277]: the trait bound `signer::error_t: std::ops::Residual<signer::result_details_t>` is not satisfied [INFO] [stderr] --> src/signer.rs:147:21 [INFO] [stderr] | [INFO] [stderr] 147 | type Residual = error_t; [INFO] [stderr] | ^^^^^^^ unsatisfied trait bound [INFO] [stderr] | [INFO] [stderr] help: the nightly-only, unstable trait `std::ops::Residual<signer::result_details_t>` is not implemented for `signer::error_t` [INFO] [stderr] --> src/signer.rs:41:1 [INFO] [stderr] | [INFO] [stderr] 41 | pub enum error_t { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] help: the following other types implement trait `std::ops::Residual<O>` [INFO] [stderr] --> /rustc/23a3312d92a1c4ba0373f1e25277be20ba8bb28c/library/core/src/option.rs:2807:0 [INFO] [stderr] | [INFO] [stderr] = note: `std::option::Option<std::convert::Infallible>` implements `std::ops::Residual<T>` [INFO] [stderr] --> /rustc/23a3312d92a1c4ba0373f1e25277be20ba8bb28c/library/core/src/ops/control_flow.rs:138:0 [INFO] [stderr] | [INFO] [stderr] = note: `std::ops::ControlFlow<B, std::convert::Infallible>` implements `std::ops::Residual<C>` [INFO] [stderr] --> /rustc/23a3312d92a1c4ba0373f1e25277be20ba8bb28c/library/core/src/result.rs:2205:0 [INFO] [stderr] | [INFO] [stderr] = note: `std::result::Result<std::convert::Infallible, E>` implements `std::ops::Residual<T>` [INFO] [stderr] note: required by a bound in `std::ops::Try::Residual` [INFO] [stderr] --> /rustc/23a3312d92a1c4ba0373f1e25277be20ba8bb28c/library/core/src/ops/try_trait.rs:160:4 [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0277`. [INFO] [stderr] error: could not document `libbitcoin` [INFO] running `Command { std: "docker" "inspect" "63bddeaa7408468ae0337bc5ec5f2c46f93717087f18f1f130ea6c56fc968a67", kill_on_drop: false }`