fatal error: too many address space collisions for -race mode

runtime stack:
runtime.throw({0x52b31b?, 0x0?})
	GOROOT/src/runtime/panic.go:1047 +0x5d fp=0x7ff442ffd068 sp=0x7ff442ffd038 pc=0x12f0e1d
runtime.(*mheap).sysAlloc(0x2870240, 0xc3ffffffff?, 0x28803d8, 0x1)
	GOROOT/src/runtime/malloc.go:654 +0x645 fp=0x7ff442ffd0f8 sp=0x7ff442ffd068 pc=0x12c6945
runtime.(*mheap).grow(0x2870240, 0x60000?)
	GOROOT/src/runtime/mheap.go:1472 +0x7f fp=0x7ff442ffd170 sp=0x7ff442ffd0f8 pc=0x12e1ebf
runtime.(*mheap).allocSpan(0x2870240, 0x60000, 0x0, 0xff?)
	GOROOT/src/runtime/mheap.go:1243 +0x1b7 fp=0x7ff442ffd208 sp=0x7ff442ffd170 pc=0x12e17d7
runtime.(*mheap).alloc.func1()
	GOROOT/src/runtime/mheap.go:961 +0x65 fp=0x7ff442ffd250 sp=0x7ff442ffd208 pc=0x12e1285
runtime.systemstack()
	src/runtime/asm_amd64.s:496 +0x49 fp=0x7ff442ffd258 sp=0x7ff442ffd250 pc=0x13277a9