https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491 Bug 67491 depends on bug 84810, which changed state.
Bug 84810 Summary: [concepts][c++20] constraints of lambdas with explicit template parameters are not checked https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84810 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED