> cabal new-build cabal
Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: cabal-testsuite-2.5.0.0 (user goal)
[__1] next goal: cabal-testsuite:setup.Cabal (dependency of cabal-testsuite)
[__1] rejecting: cabal-testsuite:setup.Cabal-2.5.0.0,
cabal-testsuite:setup.Cabal-2.4.0.1, cabal-testsuite:setup.Cabal-2.4.0.0
(constraint from maximum version of Cabal used by Setup.hs requires <2.4)
[__1] rejecting: cabal-testsuite:setup.Cabal-2.2.0.1/installed-2.2...,
cabal-testsuite:setup.Cabal-2.2.0.1, cabal-testsuite:setup.Cabal-2.2.0.0
(conflict: cabal-testsuite => cabal-testsuite:setup.Cabal==2.5.0.0)
[__1] rejecting: cabal-testsuite:setup.Cabal-2.0.1.1,
cabal-testsuite:setup.Cabal-2.0.1.0, cabal-testsuite:setup.Cabal-2.0.0.2,
cabal-testsuite:setup.Cabal-1.24.2.0, cabal-testsuite:setup.Cabal-1.24.0.0,
cabal-testsuite:setup.Cabal-1.22.8.0, cabal-testsuite:setup.Cabal-1.22.7.0,
cabal-testsuite:setup.Cabal-1.22.6.0, cabal-testsuite:setup.Cabal-1.22.5.0,
cabal-testsuite:setup.Cabal-1.22.4.0, cabal-testsuite:setup.Cabal-1.22.3.0,
cabal-testsuite:setup.Cabal-1.22.2.0, cabal-testsuite:setup.Cabal-1.22.1.1,
cabal-testsuite:setup.Cabal-1.22.1.0, cabal-testsuite:setup.Cabal-1.22.0.0,
cabal-testsuite:setup.Cabal-1.20.0.4, cabal-testsuite:setup.Cabal-1.20.0.3,
cabal-testsuite:setup.Cabal-1.20.0.2, cabal-testsuite:setup.Cabal-1.20.0.1,
cabal-testsuite:setup.Cabal-1.20.0.0, cabal-testsuite:setup.Cabal-1.18.1.7,
cabal-testsuite:setup.Cabal-1.18.1.6, cabal-testsuite:setup.Cabal-1.18.1.5,
cabal-testsuite:setup.Cabal-1.18.1.4, cabal-testsuite:setup.Cabal-1.18.1.3,
cabal-testsuite:setup.Cabal-1.18.1.2, cabal-testsuite:setup.Cabal-1.18.1.1,
cabal-testsuite:setup.Cabal-1.18.1, cabal-testsuite:setup.Cabal-1.18.0,
cabal-testsuite:setup.Cabal-1.16.0.3, cabal-testsuite:setup.Cabal-1.16.0.2,
cabal-testsuite:setup.Cabal-1.16.0.1, cabal-testsuite:setup.Cabal-1.16.0,
cabal-testsuite:setup.Cabal-1.14.0, cabal-testsuite:setup.Cabal-1.12.0,
cabal-testsuite:setup.Cabal-1.10.2.0, cabal-testsuite:setup.Cabal-1.10.1.0,
cabal-testsuite:setup.Cabal-1.10.0.0, cabal-testsuite:setup.Cabal-1.8.0.6,
cabal-testsuite:setup.Cabal-1.8.0.4, cabal-testsuite:setup.Cabal-1.8.0.2,
cabal-testsuite:setup.Cabal-1.6.0.3, cabal-testsuite:setup.Cabal-1.6.0.2,
cabal-testsuite:setup.Cabal-1.6.0.1, cabal-testsuite:setup.Cabal-1.4.0.2,
cabal-testsuite:setup.Cabal-1.4.0.1, cabal-testsuite:setup.Cabal-1.4.0.0,
cabal-testsuite:setup.Cabal-1.2.4.0, cabal-testsuite:setup.Cabal-1.2.3.0,
cabal-testsuite:setup.Cabal-1.2.2.0, cabal-testsuite:setup.Cabal-1.2.1,
cabal-testsuite:setup.Cabal-1.1.6, cabal-testsuite:setup.Cabal-1.24.1.0
(constraint from minimum version of Cabal used by Setup.hs requires >=2.2)
[__1] fail (backjumping, conflict set: cabal-testsuite,
cabal-testsuite:setup.Cabal)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: cabal-testsuite:setup.Cabal,
cabal-testsuite