Auto merge of #70672 - Dylan-DPC:rollup-cco9bbd, r=Dylan-DPC

Rollup of 6 pull requests

Successful merges:

 - #70535 (Track the finalizing node in the specialization graph)
 - #70590 (Miri: make backtrace function names and spans match up)
 - #70616 (rustc_target::abi: rename FieldPlacement to FieldsShape.)
 - #70626 (cargotest: remove webrender)
 - #70649 (clean up E0468 explanation)
 - #70662 (compiletest: don't use `std::io::stdout()`, as it bypasses `set_print`.)

Failed merges:

r? @ghost