build: build failure on x_pkgsite-gotip-darwin-amd64_11

[gopherbot]

#!watchflakes
default <- builder == "x_pkgsite-gotip-darwin-amd64_11" && repo == "pkgsite" && mode == "build"

Issue created automatically to collect these failures.

Example (log):

Building Go cmd/dist using /Users/swarming/.swarming/w/ir/cache/tools/go_bootstrap. (go1.20.6 darwin/amd64)
runtime: /Users/swarming/.swarming/w/ir/cache/tools/go_bootstrap/pkg/tool/darwin_amd64/asm: signal: killed

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- builder == "x_pkgsite-gotip-darwin-amd64_11" && repo == "pkgsite" && mode == "build"

2024-04-24 21:17 x_pkgsite-gotip-darwin-amd64_11 pkgsite@41da83f6 go@b384ee7c [build] (log)

Building Go cmd/dist using /Users/swarming/.swarming/w/ir/cache/tools/go_bootstrap. (go1.20.6 darwin/amd64)
runtime: /Users/swarming/.swarming/w/ir/cache/tools/go_bootstrap/pkg/tool/darwin_amd64/asm: signal: killed

— watchflakes