testing/9base: new abuild

The port for s390x is as recommended on https://plan9port-review.googlesource.com/1030
6 jobs for !299 with 9base in 3 minutes and 13 seconds (queued for 1 second)
latest detached
Status Job ID Name Coverage
  Lint
passed #2353
docker-alpine x86_64
lint

00:00:21

 
  Build
passed #2357
docker-alpine ci-build ppc64le
build-ppc64le

00:01:01

passed #2356
docker-alpine ci-build s390x
build-s390x

00:00:49

passed #2355
docker-alpine ci-build x86
build-x86

00:01:05

passed #2374
x86_64 ci-build docker-alpine
build-x86_64

00:01:46

passed #2354
docker-alpine ci-build x86_64
build-x86_64

00:01:02