Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: rebase-1.16 (user goal)
[__1] trying: vector-instances-3.4 (dependency of rebase)
[__2] next goal: vector (dependency of rebase)
[__2] rejecting: vector-0.13.0.0 (conflict: vector-instances => vector>=0.9 &&
<0.13)
[__2] rejecting: vector-0.12.3.1 (conflict: rebase => vector>=0.13 && <0.14)
[__2] skipping: vector-0.12.3.0, vector-0.12.2.0, vector-0.12.1.2,
vector-0.12.0.3, vector-0.12.0.2, vector-0.12.0.1, vector-0.12.0.0,
vector-0.11.0.0, vector-0.10.12.3, vector-0.10.12.2, vector-0.10.12.1,
vector-0.10.11.0, vector-0.10.10.0, vector-0.10.9.2, vector-0.10.9.1,
vector-0.10.9.0, vector-0.10.0.1, vector-0.10, vector-0.9.1, vector-0.9,
vector-0.8, vector-0.7.1, vector-0.7.0.1, vector-0.7, vector-0.6.0.2,
vector-0.6.0.1, vector-0.6, vector-0.5, vector-0.4.2, vector-0.4.1,
vector-0.4, vector-0.3.1, vector-0.3, vector-0.2, vector-0.1, vector-0.12.1.1,
vector-0.12.1.0, vector-0.10.12.0, vector-0.10.9.3 (has the same
characteristics that caused the previous version to fail: excluded by
constraint '>=0.13 && <0.14' from 'rebase')
[__2] fail (backjumping, conflict set: rebase, vector, vector-instances)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: rebase, vector, vector-instances