thunderbird 115.10 build failure on -current

[Michael Butler]

In a clean environment with default options on -current, I get ..
error[E0412]: cannot find type `_Pred` in this scope
     --> 
/usr/ports/mail/thunderbird/work/.build/x86_64-unknown-freebsd/release/build/style-5fb673490cc43b88/out/gecko/structs.rs:34497:49
      |
34497 |                 pub _base: root::std::__1::_And<_Pred>,
      |                                                 ^^^^^ not found 
in this scope
      |
help: you might be missing a type parameter
      |
34496 |             pub struct tuple__EnableUTypesCtor<_Pred> {
      |                                               +++++++

Any hints?

        Michael