Please avoid the after_crate_root_parsing driver callback

[bjorn3]

You are calling queries.global_ctxt() from within it, which makes rustc_driver skip some code that should run before you access the TyCtxt. I would like to either remove this function in the future or change it to only allow access to the AST and not to the TyCtxt. Using the after_analysis or (if you need to avoid tcx.analysis()) the after_expansion callbacks should work better.

Edit: rust-lang/rust#132410 will mark it as deprecated.