wonwin-mcbrootles-computer:~/playground/allmydata/tahoe$ darcs -- 
version
2.0.0 (2.0.0 (+ 220 patches))
  wonwin-mcbrootles-computer:~/playground/allmydata/tahoe$ time darcs  
put --repodir=trunk-pristine ${PWD}/tmpput
There are conflicts in the following files:
./src/allmydata/test/test_system.py

darcs failed:  Refusing to apply patches leading to conflicts.
If you would rather apply the patch and mark the conflicts,
use the --mark-conflicts or --allow-conflicts options to apply
These can set as defaults by adding
  apply mark-conflicts
to _darcs/prefs/defaults in the target repo.
Apply failed!

real    0m38.408s
user    0m33.685s
sys     0m4.577s
  wonwin-mcbrootles-computer:~/playground/allmydata/tahoe$ time darcs  
get --repo-name=tmpget trunk-pristine
Copying patches, to get lazy repository hit ctrl-C...
Finished getting.

real    0m15.497s
user    0m4.103s
sys     0m1.259s

duplicate of issue883 (duplicated by that roundup email bug)