declare 0.0.1

An error set macro that simplifies error management by providing a streamlined method for defining errors and easily converting between them. Inspired by Zig's error set type.
Documentation
Build #2492087 2025-09-10 02:32:27

# rustc version rustc 1.91.0-nightly (7ad23f43a 2025-09-09)

# docs.rs version docsrs 0.6.0 (8bbaf878 2025-08-22)

# build log [INFO] running `Command { std: "docker" "create" "-v" "/home/cratesfyi/workspace-builder/builds/declare-0.0.1/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace-builder/builds/declare-0.0.1/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" "tracing" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--emit=invocation-specific\", \"--resource-suffix\", \"-20250909-1.91.0-nightly-7ad23f43a\", \"--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] e97633b00ab9fb971c116e265df90bfb10c4be330a1548428b335240b9b16f93 [INFO] running `Command { std: "docker" "start" "-a" "e97633b00ab9fb971c116e265df90bfb10c4be330a1548428b335240b9b16f93", kill_on_drop: false }` [INFO] [stderr] warning: target filter specified, but no targets matched; this is a no-op [INFO] [stderr] Documenting declare v0.0.1 (/opt/rustwide/workdir) [INFO] [stderr] warning: unresolved link to `f` [INFO] [stderr] --> src/context.rs:24:22 [INFO] [stderr] | [INFO] [stderr] 24 | /// Lazily call [f] if the Result is an [Err] and log as an "error". [INFO] [stderr] | ^ no item named `f` in scope [INFO] [stderr] | [INFO] [stderr] = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` [INFO] [stderr] = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unresolved link to `f` [INFO] [stderr] --> src/context.rs:26:22 [INFO] [stderr] | [INFO] [stderr] 26 | /// Lazily call [f] if the Result is an [Err] and log as an "warn". [INFO] [stderr] | ^ no item named `f` in scope [INFO] [stderr] | [INFO] [stderr] = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` [INFO] [stderr] [INFO] [stderr] warning: unresolved link to `f` [INFO] [stderr] --> src/context.rs:28:22 [INFO] [stderr] | [INFO] [stderr] 28 | /// Lazily call [f] if the Result is an [Err] and log as an "info". [INFO] [stderr] | ^ no item named `f` in scope [INFO] [stderr] | [INFO] [stderr] = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` [INFO] [stderr] [INFO] [stderr] warning: unresolved link to `f` [INFO] [stderr] --> src/context.rs:30:22 [INFO] [stderr] | [INFO] [stderr] 30 | /// Lazily call [f] if the Result is an [Err] and log as an "debug". [INFO] [stderr] | ^ no item named `f` in scope [INFO] [stderr] | [INFO] [stderr] = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` [INFO] [stderr] [INFO] [stderr] warning: unresolved link to `f` [INFO] [stderr] --> src/context.rs:32:22 [INFO] [stderr] | [INFO] [stderr] 32 | /// Lazily call [f] if the Result is an [Err] and log as an "trace". [INFO] [stderr] | ^ no item named `f` in scope [INFO] [stderr] | [INFO] [stderr] = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` [INFO] [stderr] [INFO] [stderr] warning: unresolved link to `f` [INFO] [stderr] --> src/context.rs:35:93 [INFO] [stderr] | [INFO] [stderr] 35 | /// Consumes the [Err] of a Result. if [Err], logging as an "error" with the result of [f]. [INFO] [stderr] | ^ no item named `f` in scope [INFO] [stderr] | [INFO] [stderr] = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` [INFO] [stderr] [INFO] [stderr] warning: unresolved link to `f` [INFO] [stderr] --> src/context.rs:37:92 [INFO] [stderr] | [INFO] [stderr] 37 | /// Consumes the [Err] of a Result. if [Err], logging as an "warn" with the result of [f]. [INFO] [stderr] | ^ no item named `f` in scope [INFO] [stderr] | [INFO] [stderr] = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` [INFO] [stderr] [INFO] [stderr] warning: unresolved link to `f` [INFO] [stderr] --> src/context.rs:39:92 [INFO] [stderr] | [INFO] [stderr] 39 | /// Consumes the [Err] of a Result. if [Err], logging as an "info" with the result of [f]. [INFO] [stderr] | ^ no item named `f` in scope [INFO] [stderr] | [INFO] [stderr] = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` [INFO] [stderr] [INFO] [stderr] warning: unresolved link to `f` [INFO] [stderr] --> src/context.rs:41:93 [INFO] [stderr] | [INFO] [stderr] 41 | /// Consumes the [Err] of a Result. if [Err], logging as an "debug" with the result of [f]. [INFO] [stderr] | ^ no item named `f` in scope [INFO] [stderr] | [INFO] [stderr] = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` [INFO] [stderr] [INFO] [stderr] warning: unresolved link to `f` [INFO] [stderr] --> src/context.rs:43:93 [INFO] [stderr] | [INFO] [stderr] 43 | /// Consumes the [Err] of a Result. if [Err], logging as an "trace" with the result of [f]. [INFO] [stderr] | ^ no item named `f` in scope [INFO] [stderr] | [INFO] [stderr] = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` [INFO] [stderr] [INFO] [stderr] warning: unresolved link to `f` [INFO] [stderr] --> src/context.rs:91:22 [INFO] [stderr] | [INFO] [stderr] 91 | /// Lazily call [f] if the Option is [None] and log as an "error". [INFO] [stderr] | ^ no item named `f` in scope [INFO] [stderr] | [INFO] [stderr] = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` [INFO] [stderr] [INFO] [stderr] warning: unresolved link to `f` [INFO] [stderr] --> src/context.rs:93:22 [INFO] [stderr] | [INFO] [stderr] 93 | /// Lazily call [f] if the Option is [None] and log as an "warn". [INFO] [stderr] | ^ no item named `f` in scope [INFO] [stderr] | [INFO] [stderr] = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` [INFO] [stderr] [INFO] [stderr] warning: unresolved link to `f` [INFO] [stderr] --> src/context.rs:95:22 [INFO] [stderr] | [INFO] [stderr] 95 | /// Lazily call [f] if the Option is [None] and log as an "info". [INFO] [stderr] | ^ no item named `f` in scope [INFO] [stderr] | [INFO] [stderr] = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` [INFO] [stderr] [INFO] [stderr] warning: unresolved link to `f` [INFO] [stderr] --> src/context.rs:97:22 [INFO] [stderr] | [INFO] [stderr] 97 | /// Lazily call [f] if the Option is [None] and log as an "debug". [INFO] [stderr] | ^ no item named `f` in scope [INFO] [stderr] | [INFO] [stderr] = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` [INFO] [stderr] [INFO] [stderr] warning: unresolved link to `f` [INFO] [stderr] --> src/context.rs:99:22 [INFO] [stderr] | [INFO] [stderr] 99 | /// Lazily call [f] if the Option is [None] and log as an "trace". [INFO] [stderr] | ^ no item named `f` in scope [INFO] [stderr] | [INFO] [stderr] = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` [INFO] [stderr] [INFO] [stderr] warning: `declare` (lib doc) generated 15 warnings [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s [INFO] [stderr] Generated /opt/rustwide/target/x86_64-unknown-linux-gnu/doc/declare/index.html [INFO] running `Command { std: "docker" "inspect" "e97633b00ab9fb971c116e265df90bfb10c4be330a1548428b335240b9b16f93", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e97633b00ab9fb971c116e265df90bfb10c4be330a1548428b335240b9b16f93", kill_on_drop: false }` [INFO] [stdout] e97633b00ab9fb971c116e265df90bfb10c4be330a1548428b335240b9b16f93