unix: mkall.sh: fail if docker build failed

When docker build fails, docker run (in my case podman) tries to find
the generate:linux image from various mirrors, which is very confusing.
We should error out if docker build fails.

Change-Id: I4fd78e9fa339e03029b1bf003b3239ca23a7ed1b
Reviewed-on: https://go-review.googlesource.com/c/sys/+/706916
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Kirill Kolyshkin <kolyshkin@gmail.com>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
Reviewed-by: Sean Liao <sean@liao.dev>
Reviewed-by: Carlos Amedee <carlos@golang.org>
1 file changed
tree: b7ad3b5440ae1b59949ba5f1893154c0ff59abb6
  1. cpu/
  2. execabs/
  3. plan9/
  4. unix/
  5. windows/
  6. .gitattributes
  7. .gitignore
  8. codereview.cfg
  9. CONTRIBUTING.md
  10. go.mod
  11. LICENSE
  12. PATENTS
  13. README.md
README.md

sys

Go Reference

This repository holds supplemental Go packages for low-level interactions with the operating system.

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