The presence of multiple packages in a single directory sometimes
confuses `go mod`, producing output like:
go: downloading gvisor.dev/gvisor v0.0.0-20210601174640-101a132e9436
$GOMODCACHE/gvisor.dev/[email protected]/pkg/linewriter/linewriter.go:21:2: found packages sync (aliases.go) and seqatomic (generic_atomicptr_unsafe.go) in $GOMODCACHE/gvisor.dev/[email protected]/pkg/sync
imports.go:67:2: found packages tcp (accept.go) and rcv (rcv_test.go) in $GOMODCACHE/gvisor.dev/[email protected]/pkg/tcpip/transport/tcp
PiperOrigin-RevId: 376956213