Test in https://github.com/julienschmidt/httprouter, must add the following arcconfig file
```
{
"phabricator.uri" : "https://secure.phabricator.com/",
"unit.engine": "GoTestEngine"
}
```
Then make a breaking change and run 'arc unit'.
Example output:
```
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestPathClean
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestPathCleanMallocs
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestParams
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestRouter
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestRouterAPI
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestRouterRoot
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestRouterNotAllowed
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestRouterNotFound
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestRouterPanicHandler
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestRouterLookup
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestRouterServeFiles
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestCountParams
FAIL Go::Test::github.com::julienschmidt::httprouter::TestTreeAddAndGet
tree_test.go:100: maxParams mismatch for node 'ntact': is 0, should be 0
FAIL Go::Test::github.com::julienschmidt::httprouter::TestTreeWildcard
tree_test.go:100: maxParams mismatch for node ':query': is 1, should be 1
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestTreeWildcardConflict
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestTreeChildConflict
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestTreeDupliatePath
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestEmptyWildcardName
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestTreeCatchAllConflict
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestTreeCatchAllConflictRoot
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestTreeDoubleWildcard
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestTreeTrailingSlashRedirect
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestTreeFindCaseInsensitivePath
PASS <1ms★ Go::Test::github.com::julienschmidt::httprouter::TestTreeInvalidNodeType
```