build(rust): vendor rnix parser crate

third_party/crates/countme-3.0.1/Cargo.toml.orig

@@ -0,0 +1,35 @@
+[package]
+name = "countme"
+description = "Counts the number of live instances of types"
+version = "3.0.1"
+categories = ["development-tools::profiling"]
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/matklad/countme"
+authors = ["Aleksey Kladov <aleksey.kladov@gmail.com>"]
+edition = "2018"
+
+exclude = [".github/", "bors.toml", "rustfmt.toml"]
+
+[workspace]
+members = ["xtask"]
+
+[[example]]
+name = "print_at_exit"
+required-features = ["print_at_exit"]
+
+[[example]]
+name = "bench"
+required-features = ["enable"]
+
+[[example]]
+name = "bench_single_thread"
+required-features = ["enable"]
+
+[dependencies]
+dashmap = { version = "5.0", optional = true }
+once_cell = { version = "1.5", optional = true }
+rustc-hash = { version = "1.1", optional = true }
+
+[features]
+enable = [ "dashmap", "once_cell", "rustc-hash" ]
+print_at_exit = ["enable"]