Resolving dependencies...
Configuring ansi-terminal-0.6.2.3...
Configuring hinotify-0.3.8.1...
Building hinotify-0.3.8.1...
Building ansi-terminal-0.6.2.3...
Installed hinotify-0.3.8.1
Configuring mtl-2.2.1...
Configuring stm-2.4.4.1...
Installed ansi-terminal-0.6.2.3
Building mtl-2.2.1...
Building stm-2.4.4.1...
Configuring text-1.2.2.1...
Installed stm-2.4.4.1
Building text-1.2.2.1...
Configuring transformers-compat-0.5.1.4...
Installed mtl-2.2.1
Building transformers-compat-0.5.1.4...
Configuring unix-compat-0.4.2.0...
Installed transformers-compat-0.5.1.4
Building unix-compat-0.4.2.0...
Installed unix-compat-0.4.2.0
Configuring ansi-wl-pprint-0.6.7.3...
Building ansi-wl-pprint-0.6.7.3...
Configuring regex-base-0.93.2...
Installed ansi-wl-pprint-0.6.7.3
Building regex-base-0.93.2...
Configuring async-2.1.1...
Installed regex-base-0.93.2
Building async-2.1.1...
Installed async-2.1.1
Configuring optparse-applicative-0.13.0.0...
Building optparse-applicative-0.13.0.0...
Configuring regex-pcre-builtin-0.94.4.8.8.35...
Installed text-1.2.2.1
Building regex-pcre-builtin-0.94.4.8.8.35...
Installed optparse-applicative-0.13.0.0
Configuring fsnotify-0.2.1...
Building fsnotify-0.2.1...
Configuring system-filepath-0.4.13.4...
Installed fsnotify-0.2.1
Installed regex-pcre-builtin-0.94.4.8.8.35
Building system-filepath-0.4.13.4...
Installed system-filepath-0.4.13.4
Downloading fswatcher-0.2.0...
Configuring fswatcher-0.2.0...
Building fswatcher-0.2.0...
Failed to install fswatcher-0.2.0
Build log ( /home/builder/.cabal/logs/fswatcher-0.2.0.log ):
cabal: Entering directory '/tmp/cabal-tmp-22447/fswatcher-0.2.0'
Configuring fswatcher-0.2.0...
Building fswatcher-0.2.0...
Preprocessing executable 'fswatcher' for fswatcher-0.2.0...
[1 of 1] Compiling Main             ( fswatcher.hs, dist/build/fswatcher/fswatcher-tmp/Main.o )

fswatcher.hs:20:1: error:
    Failed to load interface for ‘Opts’
    Use -v to see a list of the files searched for.
cabal: Leaving directory '/tmp/cabal-tmp-22447/fswatcher-0.2.0'
cabal: Error: some packages failed to install:
fswatcher-0.2.0 failed during the building phase. The exception was:
ExitFailure 1