Resolving dependencies...
Configuring mtl-2.2.1...
Configuring integer-logarithms-1.0.2...
Building mtl-2.2.1...
Building integer-logarithms-1.0.2...
Installed integer-logarithms-1.0.2
Configuring parser-combinators-0.2.0...
Building parser-combinators-0.2.0...
Configuring primitive-0.6.2.0...
Installed parser-combinators-0.2.0
Configuring text-1.2.2.2...
Installed mtl-2.2.1
Building primitive-0.6.2.0...
Building text-1.2.2.2...
Installed primitive-0.6.2.0
Installed text-1.2.2.2
Configuring hashable-1.2.6.1...
Building hashable-1.2.6.1...
Installed hashable-1.2.6.1
Configuring case-insensitive-1.2.0.10...
Configuring scientific-0.3.5.1...
Building case-insensitive-1.2.0.10...
Building scientific-0.3.5.1...
Installed case-insensitive-1.2.0.10
Installed scientific-0.3.5.1
Configuring megaparsec-6.1.1...
Building megaparsec-6.1.1...
Installed megaparsec-6.1.1
Configuring smiles-0.2.0.0...
Building smiles-0.2.0.0...
Failed to install smiles-0.2.0.0
Build log ( /home/builder/.cabal/logs/smiles-0.2.0.0.log ):
cabal: Entering directory '/tmp/cabal-tmp-9400/smiles-0.2.0.0'
Configuring smiles-0.2.0.0...
Building smiles-0.2.0.0...
Preprocessing library smiles-0.2.0.0...
[ 1 of 13] Compiling Data.SMILES.Bond ( src/Data/SMILES/Bond.hs, dist/build/Data/SMILES/Bond.o )
[ 2 of 13] Compiling Data.SMILES.Bond.Parser ( src/Data/SMILES/Bond/Parser.hs, dist/build/Data/SMILES/Bond/Parser.o )

src/Data/SMILES/Bond/Parser.hs:4:1: error:
    Failed to load interface for ‘Text.Megaparsec.Text’
    Perhaps you meant
      Text.Megaparsec.Perm (from megaparsec-6.1.1)
      Text.Megaparsec.Byte (from megaparsec-6.1.1)
      Text.Megaparsec.Char (from megaparsec-6.1.1)
    Use -v to see a list of the files searched for.
cabal: Leaving directory '/tmp/cabal-tmp-9400/smiles-0.2.0.0'
cabal: Error: some packages failed to install:
smiles-0.2.0.0 failed during the building phase. The exception was:
ExitFailure 1