[1 of 5] Compiling MapAsSet[boot]   ( MapAsSet.hs-boot, tmp_sigof02dm\MapAsSet.o-boot )
[2 of 5] Compiling MapAsSet[merge]  ( MapAsSet.hi, tmp_sigof02dm\MapAsSet.o )
[3 of 5] Compiling Map[boot]        ( Map.hs-boot, tmp_sigof02dm\Map.o-boot )
[4 of 5] Compiling Map[merge]       ( Map.hi, tmp_sigof02dm\Map.o )
[5 of 5] Compiling Main             ( Double.hs, tmp_sigof02dm\Main.o )
Linking tmp_sigof02dm/Double.exe ...
False
fromList [0,6]
[(0,"foo"),(6,"foo")]
fromList [(0,"foo"),(6,"foo")]