Auto merge of #154832 - JonathanBrouwer:rollup-xJmqF28, r=JonathanBrouwer

Rollup of 2 pull requests

Successful merges:

 - rust-lang/rust#150129 (`BorrowedCursor`: make `init` a boolean)
 - rust-lang/rust#154830 (miri subtree update)