Description of problem:
The rebuild of golang-github-cosmos72-gomacro [1] in Rawhide is failing now due to a crash in the compiler. Both i686 and armv7hl, the 32-bit systems crash due to running out of memory. This did not happen with Go 1.10 in Fedora 28 or before the mass rebuild.

Version-Release number of selected component (if applicable):
1.11-0.beta2.1.fc29

[1] https://koji.fedoraproject.org/koji/taskinfo?taskID=28504933

The backtrace:

runtime: out of memory: cannot allocate 163045376-byte block (3906863104 in use)
fatal error: out of memory
runtime stack:
runtime.throw(0x882f7ac, 0xd)
	/usr/lib/golang/src/runtime/panic.go:608 +0x6a
runtime.largeAlloc(0x9b7dad8, 0x8090101, 0x245158)
	/usr/lib/golang/src/runtime/malloc.go:1021 +0x107
runtime.mallocgc.func1()
	/usr/lib/golang/src/runtime/malloc.go:914 +0x39
runtime.systemstack(0xb4c6460)
	/usr/lib/golang/src/runtime/asm_386.s:396 +0x53
runtime.mstart()
	/usr/lib/golang/src/runtime/proc.go:1229
goroutine 1 [running]:
runtime.systemstack_switch()
	/usr/lib/golang/src/runtime/asm_386.s:357 fp=0x1b077788 sp=0x1b077784 pc=0x8095700
runtime.mallocgc(0x9b7dad8, 0x87da2e0, 0x8051201, 0x897ac88)
	/usr/lib/golang/src/runtime/malloc.go:913 +0x6a0 fp=0x1b0777dc sp=0x1b077788 pc=0x8051c30
runtime.makeslice(0x87da2e0, 0x26df6b6, 0x26df6b6, 0x897ac8b, 0xf6765a00, 0xf676afff)
	/usr/lib/golang/src/runtime/slice.go:70 +0x59 fp=0x1b0777f0 sp=0x1b0777dc pc=0x80818b9
runtime.makeslice64(0x87da2e0, 0x26df6b6, 0x0, 0x26df6b6, 0x0, 0x10620, 0x4c4178, 0x4c4180)
	/usr/lib/golang/src/runtime/slice.go:85 +0x4f fp=0x1b07780c sp=0x1b0777f0 pc=0x808197f
cmd/compile/internal/gc.bvbulkalloc(0x19ab, 0x304ed, 0x0, 0x0, 0x0, 0x0, 0x0)
	/usr/lib/golang/src/cmd/compile/internal/gc/bv.go:37 +0x98 fp=0x1b077874 sp=0x1b07780c pc=0x865b678
cmd/compile/internal/gc.newliveness(0xb54c000, 0xb010210, 0xd342000, 0x19ab, 0x1aa0, 0xa281d560, 0x8950, 0x0, 0x0)
	/usr/lib/golang/src/cmd/compile/internal/gc/plive.go:540 +0x15c fp=0x1b07790c sp=0x1b077874 pc=0x86cc6cc
cmd/compile/internal/gc.liveness(0xd62cf80, 0xb010210, 0x0, 0x0, 0x0)
	/usr/lib/golang/src/cmd/compile/internal/gc/plive.go:1690 +0x6c fp=0x1b077960 sp=0x1b07790c pc=0x86d3cac
cmd/compile/internal/gc.genssa(0xb010210, 0xf0f5c40)
	/usr/lib/golang/src/cmd/compile/internal/gc/ssa.go:4837 +0x7b fp=0x1b077bb4 sp=0x1b077960 pc=0x871061b
cmd/compile/internal/gc.compileSSA(0xb54c000, 0x0)
	/usr/lib/golang/src/cmd/compile/internal/gc/pgen.go:269 +0x1ae fp=0x1b077be8 sp=0x1b077bb4 pc=0x86c5c0e
cmd/compile/internal/gc.compile(0xb54c000)
	/usr/lib/golang/src/cmd/compile/internal/gc/pgen.go:238 +0x16b fp=0x1b077c0c sp=0x1b077be8 pc=0x86c5a1b
cmd/compile/internal/gc.funccompile(0xb54c000)
	/usr/lib/golang/src/cmd/compile/internal/gc/pgen.go:209 +0xa9 fp=0x1b077c34 sp=0x1b077c0c pc=0x86c57c9
cmd/compile/internal/gc.Main(0x884b214)
	/usr/lib/golang/src/cmd/compile/internal/gc/main.go:637 +0x2201 fp=0x1b077f98 sp=0x1b077c34 pc=0x86a6041
main.main()
	/usr/lib/golang/src/cmd/compile/main.go:51 +0x7e fp=0x1b077fd0 sp=0x1b077f98 pc=0x879f5fe
runtime.main()
	/usr/lib/golang/src/runtime/proc.go:201 +0x206 fp=0x1b077ff0 sp=0x1b077fd0 pc=0x8070266
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_386.s:1324 +0x1 fp=0x1b077ff4 sp=0x1b077ff0 pc=0x8096f51