Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: shelly (user goal)
rejecting: shelly-1.6.4, 1.6.3.4, 1.6.3.3, 1.6.3.2, 1.6.3.1, 1.6.3, 1.6.2.5,
1.6.2.4, 1.6.2.3, 1.6.2.2, 1.6.2.1, 1.6.2, 1.6.1.2, 1.6.1.1, 1.6.1, 1.6.0.1,
1.6.0, 1.5.7, 1.5.6, 1.5.5, 1.5.4.1, 1.5.4, 1.5.3.2, 1.5.3.1, 1.5.2, 1.5.1.1,
1.5.1, 1.5.0.1, 1.4.4.2, 1.4.4.1, 1.4.4, 1.4.3.1, 1.4.3, 1.4.2, 1.4.1,
1.4.0.2, 1.4.0.1, 1.3.2, 1.3.1, 1.3.0.7, 1.3.0.6, 1.3.0.5, 1.3.0.4, 1.3.0.3,
1.3.0.2, 1.3.0.1, 1.3.0.0, 1.2.0.0, 1.1.0.0, 1.0.0.0, 0.15.4.1, 0.15.4,
0.15.3.3, 0.15.3.2, 0.15.3.1, 0.15.3, 0.15.2, 0.15.1, 0.15.0, 0.14.3,
0.14.2.3, 0.14.2.2, 0.14.2.1, 0.14.2, 0.14.1, 0.14.0.1, 0.14, 0.13.5.1,
0.13.5, 0.13.4, 0.13.3, 0.13.2.1, 0.13.2, 0.13.1, 0.13.0.1, 0.13, 0.12.2,
0.12.1.1, 0.12.1, 0.12.0.2, 0.12.0.1, 0.12, 0.11, 0.10.0.1, 0.10, 0.9.7.3,
0.9.7.2, 0.9.7.1, 0.9.7, 0.9.6, 0.9.5.1, 0.9.5, 0.9.4.2, 0.9.4.1, 0.9.3,
0.9.2, 0.9.0, 0.8.0.2, 0.8.0.1, 0.7.1, 0.7, 0.6, 0.5.1, 0.5.0, 0.4.1, 0.4,
0.3.1, 0.3.0.2, 0.3.0.1, 0.3.0 (global constraint requires ==1.5.3)
trying: shelly-1.5.3
trying: base-4.8.1.0/installed-4f7... (dependency of shelly-1.5.3)
trying: bytestring-0.10.6.0/installed-236... (dependency of shelly-1.5.3)
next goal: directory (dependency of shelly-1.5.3)
rejecting: directory-1.2.2.0/installed-258... (conflict: directory =>
time==1.5.0.1/installed-c20..., shelly => time>=1.3 && <1.5)
trying: directory-1.2.4.0
next goal: time (dependency of shelly-1.5.3)
rejecting: time-1.5.0.1/installed-c20..., 1.5.0.1, 1.5 (conflict: shelly =>
time>=1.3 && <1.5)
rejecting: time-1.4.2, 1.4.1 (conflict: bytestring =>
deepseq==1.4.1.1/installed-8fb..., time => deepseq>=1.1 && <1.4)
rejecting: time-1.4.0.2 (conflict: base==4.8.1.0/installed-4f7..., time =>
base>=4 && <4.7)
rejecting: time-1.4.0.1, 1.4 (conflict: base==4.8.1.0/installed-4f7..., time
=> base<4.7)
rejecting: time-1.3 (conflict: directory => time>=1.4 && <1.6)
rejecting: time-1.2.0.5, 1.2.0.4, 1.2.0.3, 1.2.0.2, 1.2.0.1, 1.2, 1.1.4,
1.1.3, 1.1.2.4, 1.1.2.3, 1.1.2.2, 1.1.2.1, 1.1.2.0, 1.0 (conflict: shelly =>
time>=1.3 && <1.5)
Backjump limit reached (change with --max-backjumps).