Stuart Cook be395723b5
Rollup merge of #146820 - cammeresi:alloc-20250919, r=tgross35
Add unstable attribute to BTreeMap-related allocator generics

Although these types aren't directly constructable externally, since they're pub, I think this omission was an oversight.

r? libs-api
2025-09-21 14:42:36 +10:00
..