bors 5982d9c420 Auto merge of #18227 - davidbarsky:davidbarsky/push-lmntvwvznyyx, r=davidbarsky ... internal: add json `tracing` Layer for profiling startup On `buck2/integrations/rust-project`, this results in the following being printed: ```json {"name":"discover_command","elapsed_ms":18703} {"name":"parallel_prime_caches","elapsed_ms":0} {"name":"vfs_load","elapsed_ms":5895} {"name":"vfs_load","elapsed_ms":547} {"name":"parallel_prime_caches","elapsed_ms":23} {"name":"parallel_prime_caches","elapsed_ms":84} {"name":"parallel_prime_caches","elapsed_ms":5819} ```		2024-10-04 17:59:02 +00:00
..
src	Auto merge of #18227 - davidbarsky:davidbarsky/push-lmntvwvznyyx, r=davidbarsky	2024-10-04 17:59:02 +00:00
Cargo.toml	Replace once_cell with std's recently stabilized OnceCell/Lock and LazyCell/Lock	2024-08-16 09:53:37 +03:00