cabal.out

# cabal v2-build
Resolving dependencies...
Build profile: -w ghc-<GHCVER> -O1
In order, the following will be built:
 - issue-6894 (lib:sublib) (first run)
 - issue-6894 (lib) (first run)
Warning: issue.cabal:7:30: colon specifier is experimental feature (issue #5660)
Configuring library 'sublib' for issue-6894..
Preprocessing library 'sublib' for issue-6894..
Building library 'sublib' for issue-6894..
Warning: issue.cabal:7:30: colon specifier is experimental feature (issue #5660)
Configuring library for issue-6894..
Warning: The package has an extraneous version range for a dependency on an internal library: issue:sublib >=0 && ==6894. This version range includes the current package but isn't needed as the current package's library will always be used.
Preprocessing library for issue-6894..
Building library for issue-6894..