proc-macro2 1.0.81

A substitute implementation of the compiler's `proc_macro` API to decouple token-based libraries from the procedural macro use case.

proc-macro2's sandbox limits

All the builds on are executed inside a sandbox with limited resources. The limits for this crate are the following:

Available RAM 6 GB
Maximum rustdoc execution time 15 minutes
Maximum size of a build log 100 kB
Network access blocked
Maximum number of build targets 10

If a build fails because it hit one of those limits please open an issue to get them increased.