add release notes for 1.58.1

Author: pietroalbini

Diff for: RELEASES.md

@@ -1,3 +1,16 @@
+Version 1.58.1 (2022-01-19)
+===========================
+
+* [Handle captured arguments in the `useless_format` Clippy lint][clippy/8295]
+* [Move `non_send_fields_in_send_ty` Clippy lint to nursery][clippy/8075]
+* [Fix wrong error message displayed when some imports are missing][91254]
+* [Fix rustfmt not formatting generated files from stdin][92912]
+
+[91254]: https://github.com/rust-lang/rust/pull/91254
+[92912]: https://github.com/rust-lang/rust/pull/92912
+[clippy/8075]: https://github.com/rust-lang/rust-clippy/pull/8075
+[clippy/8295]: https://github.com/rust-lang/rust-clippy/pull/8295
+
 Version 1.58.0 (2022-01-13)
 ==========================