Resolving dependencies...
cabal: Could not resolve dependencies:
trying: base-4.9.0.0/installed-4.9... (dependency of happstack-server-6.5.7)
trying: unix-2.7.2.0/installed-2.7... (dependency of happstack-server-6.5.7)
trying: happstack-server-6.5.7:+https
next goal: HsOpenSSL (dependency of happstack-server-6.5.7:+https)
rejecting: HsOpenSSL-0.11.3.2, HsOpenSSL-0.11.3.1, HsOpenSSL-0.11.3,
HsOpenSSL-0.11.2.4, HsOpenSSL-0.11.2.3, HsOpenSSL-0.11.2.2,
HsOpenSSL-0.11.2.1, HsOpenSSL-0.11.2, HsOpenSSL-0.11.1.1, HsOpenSSL-0.11.1,
HsOpenSSL-0.11 (conflict: happstack-server-6.5.7:https => HsOpenSSL==0.10.*)
rejecting: HsOpenSSL-0.10.5, HsOpenSSL-0.10.4, HsOpenSSL-0.10.3.6,
HsOpenSSL-0.10.3.5, HsOpenSSL-0.10.3.4, HsOpenSSL-0.10.3.3,
HsOpenSSL-0.10.3.2, HsOpenSSL-0.10.3.1, HsOpenSSL-0.10.3, HsOpenSSL-0.10.2.1,
HsOpenSSL-0.10.2, HsOpenSSL-0.10.1.4, HsOpenSSL-0.10.1.3 (conflict: unix =>
time==1.6.0.1/installed-1.6..., HsOpenSSL => time>=1.1.1 && <1.5)
rejecting: HsOpenSSL-0.10.1.2, HsOpenSSL-0.10.1.1, HsOpenSSL-0.10.1,
HsOpenSSL-0.10 (conflict: base==4.9.0.0/installed-4.9..., HsOpenSSL => base>=4
&& <4.6)
rejecting: HsOpenSSL-0.9.0.1, HsOpenSSL-0.9, HsOpenSSL-0.8.0.2,
HsOpenSSL-0.8.0.1, HsOpenSSL-0.8, HsOpenSSL-0.7, HsOpenSSL-0.6.5,
HsOpenSSL-0.6.4, HsOpenSSL-0.6.3, HsOpenSSL-0.6.2, HsOpenSSL-0.6.1,
HsOpenSSL-0.6, HsOpenSSL-0.5.2, HsOpenSSL-0.5.1, HsOpenSSL-0.5,
HsOpenSSL-0.4.2, HsOpenSSL-0.4.1, HsOpenSSL-0.4, HsOpenSSL-0.3.1,
HsOpenSSL-0.3, HsOpenSSL-0.2, HsOpenSSL-0.1.1, HsOpenSSL-0.1 (conflict:
happstack-server-6.5.7:https => HsOpenSSL==0.10.*)
Dependency tree exhaustively searched.