Building Go cmd/dist using /home/swarming/.swarming/w/ir/cache/tools/go_bootstrap. (go1.20.6 linux/amd64) Building Go toolchain1 using /home/swarming/.swarming/w/ir/cache/tools/go_bootstrap. ../../../../src/compress/flate/huffman_code.go:11: package slices is not in GOROOT (/home/swarming/.swarming/w/ir/cache/tools/go_bootstrap/src/slices) go tool dist: FAILED: /home/swarming/.swarming/w/ir/cache/tools/go_bootstrap/bin/go install -tags=math_big_pure_go compiler_bootstrap purego bootstrap/cmd/...: exit status 1