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unstable feature usage metrics example output ``` test-lib on master [?] is 📦 v0.1.0 via 🦀 v1.80.1 ❯ cat src/lib.rs ───────┬─────────────────────────────────────────────────────── │ File: src/lib.rs ───────┼─────────────────────────────────────────────────────── 1 │ #![feature(unix_set_mark)] 2 │ pub fn add(left: u64, right: u64) -> u64 { 3 │ left + right 4 │ } 5 │ 6 │ #[cfg(test)] 7 │ mod tests { 8 │ use super::*; 9 │ 10 │ #[test] 11 │ fn it_works() { 12 │ let result = add(2, 2); 13 │ assert_eq!(result, 4); 14 │ } 15 │ } ───────┴─────────────────────────────────────────────────────── test-lib on master [?] is 📦 v0.1.0 via 🦀 v1.80.1 ❯ cargo +stage1 rustc -- -Zmetrics-dir=$PWD/metrics Compiling test-lib v0.1.0 (/home/yaahc/tmp/test-lib) Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s test-lib on master [?] is 📦 v0.1.0 via 🦀 v1.80.1 ❯ cat metrics/unstable_feature_usage.json ───────┬───────────────────────────────────────────────────────────────────── │ File: metrics/unstable_feature_usage.json ───────┼───────────────────────────────────────────────────────────────────── 1 │ {"lib_features":[{"symbol":"unix_set_mark"}],"lang_features":[]} ``` related to https://github.com/rust-lang/rust/issues/129485 |
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src | ||
Cargo.toml | ||
messages.ftl | ||
README.md |
The driver
crate is effectively the "main" function for the rust
compiler. It orchestrates the compilation process and "knits together"
the code from the other crates within rustc. This crate itself does
not contain any of the "main logic" of the compiler (though it does
have some code related to pretty printing or other minor compiler
options).
For more information about how the driver works, see the rustc dev guide.