A cross-platform desktop All-in-One assistant for Claude Code, Codex, OpenCode, OpenClaw, Gemini CLI & Hermes Agent. Only official website: ccswitch.io
Crate
thiserror
Derive macros for ergonomic custom error types.
What it is
thiserror provides a #[derive(Error)] macro that generates std::error::Error implementations for custom error types. Enum variants take #[error("...")] display strings with field interpolation and #[from] attributes for automatic From conversions.
Why it is commonly used
The standard way to define error types in library crates. Typically paired with anyhow: thiserror for typed library-level errors that callers can match on, anyhow for application-level error propagation where the type does not matter.
2.8k
Repositories
90%
Actively maintained
2.4k
Updated ≤ 30 days
6.1M
Total stars
2.2k
Owners
Counted from the Cargo.toml manifests of the 2.8k indexed repositories that declare thiserror as a dependency — not download counts. Dependency data last verified 2026-08-13.
Often used with
Crates that show up unusually often in thiserror projects. The most distinctive pairings rank first — crates these projects use far more than the average indexed Rust project does, not just crates that are popular everywhere. Each percentage is the share of thiserror projects that also use it.
opentelemetry_sdk11.7%opentelemetry-otlp11.2%opentelemetry12.7%tower21.1%jsonwebtoken10.2%async-stream11.3%criterion14.7%lru10.1%tokio-tungstenite13.2%tokio-stream23.3%blake310.8%sqlx11.4%tower-http23.1%serde_with11.7%prost15.4%dashmap18.5%tonic10.9%async-trait41.4%tokio-util29.8%tracing-appender11.6%arc-swap10.3%schemars15.2%http22.2%axum31.4%
Used by these organizations
CloudflareMozillaAWSMicrosoftGoogleOxide ComputerParity TechnologiesDenoZed IndustriesFly.ioTursoPingCAPSurrealDBEmbark StudiosBuoyantVercelThe Rust ProjectFuel LabsAstralTauriBunOpenAIUnionWarpMeilisearchRerunFUTOTokioBevy EngineBytecode AllianceLinebenderNushellQdrantPolarsQuickwitDatadoggfx-rsprobe-rsHelixZellijPyO3YewIcedRatatuiuutilsLeptosWasmerTracel AIRust CLI WGlibp2pDieselRustCryptoesp-rsParadigmMatrix.org
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