Module snafu::guide::compatibility

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Rust version compatibility

SNAFU is tested and compatible back to Rust 1.34, released on 2019-05-14. Compatibility is controlled by Cargo feature flags.

rust_1_39

Default
enabled

When enabled, SNAFU will assume that it’s safe to target features available in Rust 1.39. Notably, the async and .await keywords are needed to allow report to be used on async functions.

rust_1_46

Default
enabled
Implies

rust_1_39

When enabled, SNAFU will assume that it’s safe to target features available in Rust 1.46. Notably, the #[track_caller] feature is needed to allow Location to automatically discern the source code location.

rust_1_61

Default
disabled
Implies

rust_1_46

When enabled, SNAFU will assume that it’s safe to target features available in Rust 1.61. Notably, the Termination trait is implemented for Report to allow it to be returned from main and test functions.