rust/compiler/rustc_data_structures/src/profiling, branch try-perf

rust/compiler/rustc_data_structures/src/profiling, branch try-perf https://github.com/rust-lang/rust http://git.dreamy.place/mirrors/rust/atom?h=try-perf 2023-04-16T13:00:06+00:00 Don't use `serde_json` to serialize a simple JSON object 2023-04-16T13:00:06+00:00 Nilstrieb 48135649+Nilstrieb@users.noreply.github.com 2023-04-16T12:58:56+00:00 urn:sha1:7859a8e9a55725bd19636baa8d2a1a99b76689bf This avoids `rustc_data_structures` depending on `serde_json` which allows it to be compiled much earlier, unlocking most of rustc.