trace output ordering in HEAD incorrectly

I don't have a test case, but it appears that the Debug.Trace.trace output is ordered incorrectly. By incorrectly, I mean that it does not follow evaluation order. I suspect it will come up in every non-trivial use of it. In GHC-6.6.1 the output order was correct (modulo that the size of output was not equal during runs (but there is another report for that already)).

In a program I have

runFoo $ do
  () <- trace "hi" (return ())
  () <- trace "there" (return ())
  return ()

prints:

there
hi

Trac metadata

Trac field	Value
Version	6.7
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system	Unknown
Architecture	Unknown