cargo-mutants 0.2.3

Find inadequately-tested code that can be removed without any tests failing.
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// Copyright 2021 Martin Pool

//! Exit codes from cargo-mutants.
//!
//! These are assigned so that different cases that CI or other automation (or
//! cargo-mutants' own test suite) might want to distinguish are distinct.
//!
//! These are also described in README.md.

// TODO: Maybe merge this with outcome::Status?

/// Everything worked and all the mutants were caught.
pub const SUCCESS: i32 = 0;

/// The wrong arguments, etc.
///
/// (1 is also the value returned by argh.)
pub const USAGE: i32 = 1;

/// Found one or mutations that were not caught by tests.
pub const FOUND_PROBLEMS: i32 = 2;

/// One or more tests timed out: probably the mutant caused an infinite loop, or the timeout is too low.
pub const TIMEOUT: i32 = 3;

/// The tests are already failing in an unmutated tree.
pub const CLEAN_TESTS_FAILED: i32 = 4;