proc-macro-error2 is unmaintained

The author of proc-macro-error2 has confirmed that the crate is no longer maintained and recommends that users migrate away from it. proc-macro-error2 was originally created as a maintained fork of proc-macro-error see RUSTSEC-2024-0370. Both the original crate and this fork are now unmaintained...

proc-macro-error is unmaintained

proc-macro-error's maintainer seems to be unreachable, with no commits for 2 years, no releases pushed for 4 years, and no activity on the GitLab repo or response to email. proc-macro-error also depends on syn 1.x, which may be bringing duplicate dependencies into dependant build trees. Possible...