Resolving dependencies... Downloading exceptional-0.1.0.0... Configuring exceptional-0.1.0.0... Building exceptional-0.1.0.0... Preprocessing library exceptional-0.1.0.0... [1 of 1] Compiling Control.Exceptional ( Control/Exceptional.hs, dist/build/Control/Exceptional.o ) Control/Exceptional.hs:22:10: Warning: No explicit implementation for ‘empty’ In the instance declaration for ‘Alternative Exceptional’ In-place registering exceptional-0.1.0.0... Running Haddock for exceptional-0.1.0.0... Running hscolour for exceptional-0.1.0.0... Preprocessing library exceptional-0.1.0.0... Preprocessing library exceptional-0.1.0.0... Control/Exceptional.hs:22:10: Warning: No explicit implementation for ‘empty’ In the instance declaration for ‘Alternative Exceptional’ Haddock coverage: 17% ( 1 / 6) in 'Control.Exceptional' Documentation created: dist/doc/html/exceptional/index.html, dist/doc/html/exceptional/exceptional.txt Creating package registration file: /tmp/pkgConf-exceptional-0.1.022379.0 Installing library in /home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.8.3/exceptional-0.1.0.0 Registering exceptional-0.1.0.0... Installed exceptional-0.1.0.0