Resolving dependencies...
Downloading  derulo-2.0.0.3
Downloaded   derulo-2.0.0.3
Starting     derulo-2.0.0.3
Building     derulo-2.0.0.3
Completed    derulo-2.0.0.3
Warning: could not create a symlink in /home/builder/.cabal/bin for derulo
because the file exists there already but is not managed by cabal. You can
create a symlink for this executable manually if you wish. The executable file
has been installed at
/home/builder/hackage-server/build-cache/tmp-install/bin/derulo