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https://github.com/KaiserY/trpl-zh-cn
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17 lines
523 B
Plaintext
17 lines
523 B
Plaintext
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$ cargo run
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Compiling patterns v0.1.0 (file:///projects/patterns)
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warning: irrefutable `if let` pattern
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--> src/main.rs:2:8
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2 | if let x = 5 {
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| ^^^^^^^^^
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= note: `#[warn(irrefutable_let_patterns)]` on by default
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= note: this pattern will always match, so the `if let` is useless
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= help: consider replacing the `if let` with a `let`
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warning: `patterns` (bin "patterns") generated 1 warning
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Finished dev [unoptimized + debuginfo] target(s) in 0.39s
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Running `target/debug/patterns`
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5
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