Thats actually how this project started.

On Wed, Sep 6, 2017 at 7:05 PM, GHC <ghc-devs@haskell.org> wrote:
#13716: Move CI to Jenkins
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        Reporter:  bgamari           |                Owner:  (none)
            Type:  task              |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  None              |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:  13897             |             Blocking:
 Related Tickets:  #11958            |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by refold):

 Is there any chance Cabal/cabal-install could piggyback on this effort?
 We've outgrown free services like Travis and AppVeyor and could use
 support for additional platforms (OpenBSD and maybe ARM) too.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13716#comment:6>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler