Ignore files in /bin

Status Job ID Name Coverage
  Build
failed #3420
openswift atbuild
osx

00:00:04

 
Name Stage Failure
failed
osx Build There is an unknown failure, please try again
                    index = index.advanced(by: 2)
^~~~~ ~~~~~~~~
atpkg/atfoundation/src/url.swift:287:21: error: value of type 'Index' (aka 'String.CharacterView.Index') has no member 'successor'
index = index.successor()
^~~~~ ~~~~~~~~~
<unknown>:0: error: build had 1 command failures
/Library/Developer/Toolchains/swift-latest.xctoolchain/usr/bin/swift-build-tool -f .atllbuild/llbuild.yaml exited with return code 256

ERROR: Build failed: exit status 1