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yaml --- r: 127064 b: refs/heads/snap-stage3 c: 69267b1 h: refs/heads/master v: v3
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[refs]

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refs/heads/master: 7be8f0af0393dcdb077c2f6b1653836fd3fba235
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refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
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refs/heads/snap-stage3: ea92a5e90a4a88d10dcdd5647dfb906aaecadd21
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refs/heads/snap-stage3: 69267b1e1d42c4c00ce2c478be8d8088f7a75283
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refs/heads/try: 502e4c045236682e9728539dc0d2b3d0b237f55c
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refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
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refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b

branches/snap-stage3/src/doc/guide.md

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```{ignore}
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src/hello_world.rs:2:9: 2:10 error: cannot determine a type for this local variable: unconstrained type
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src/hello_world.rs:2 let x;
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^
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^
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```
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Giving it a type will compile, though:
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Compiling hello_world v0.1.0 (file:/home/you/projects/hello_world)
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src/hello_world.rs:2:9: 2:10 warning: unused variable: `x`, #[warn(unused_variable)] on by default
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src/hello_world.rs:2 let x: int;
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^
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^
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```
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Rust warns us that we never use the variable binding, but since we never use it,
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Compiling hello_world v0.1.0 (file:/home/you/projects/hello_world)
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src/hello_world.rs:4:39: 4:40 error: use of possibly uninitialized variable: `x`
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src/hello_world.rs:4 println!("The value of x is: {}", x);
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^
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^
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note: in expansion of format_args!
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<std macros>:2:23: 2:77 note: expansion site
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<std macros>:1:1: 3:2 note: in expansion of println!

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