#!watchflakes
default <- pkg == "internal/concurrent" && test == ""

panic: internal/concurrent.HashMapTrie: ran out of hash bits while iterating

goroutine 39 gp=0xa483328 m=6 mp=0xa900008 [running]:
panic({0x816e080, 0x81beff0})
	/workdir/go/src/runtime/panic.go:778 +0x144 fp=0xa829aa8 sp=0xa829a54 pc=0x8083304
internal/concurrent.(*HashTrieMap[...]).CompareAndDelete(0x81c00a0, {0xa74eb20, 0xa}, 0xd)
	/workdir/go/src/internal/concurrent/hashtriemap.go:212 +0x374 fp=0xa829af8 sp=0xa829aa8 pc=0x815b9a4
internal/concurrent.testHashTrieMap.func8.1(0xd)
	/workdir/go/src/internal/concurrent/hashtriemap_test.go:163 +0x54e fp=0xa829fe8 sp=0xa829af8 pc=0x815610e
internal/concurrent.testHashTrieMap.func8.gowrap1()
...
runtime.gopark(0x81986a4, 0xaa2a168, 0x1a, 0xa, 0x0)
	/workdir/go/src/runtime/proc.go:401 +0x10c fp=0xaa25f8c sp=0xaa25f78 pc=0x8086cdc
runtime.gcBgMarkWorker(0xaa1e000)
	/workdir/go/src/runtime/mgc.go:1352 +0xfd fp=0xaa25fe8 sp=0xaa25f8c pc=0x806362d
runtime.gcBgMarkStartWorkers.gowrap1()
	/workdir/go/src/runtime/mgc.go:1268 +0x27 fp=0xaa25ff0 sp=0xaa25fe8 pc=0x8063517
runtime.goexit({})
	/workdir/go/src/runtime/asm_386.s:1393 +0x1 fp=0xaa25ff4 sp=0xaa25ff0 pc=0x80bb701
created by runtime.gcBgMarkStartWorkers in goroutine 34
	/workdir/go/src/runtime/mgc.go:1268 +0x12c