Resolving dependencies... Configuring cabal-doctest-1.0.6... Configuring base-orphans-0.7... Building base-orphans-0.7... Building cabal-doctest-1.0.6... Installed base-orphans-0.7 Configuring clock-0.7.2... Installed cabal-doctest-1.0.6 Configuring hxt-charproperties-9.2.0.1... Building clock-0.7.2... Building hxt-charproperties-9.2.0.1... Installed clock-0.7.2 Configuring ilist-0.3.1.0... Building ilist-0.3.1.0... Installed ilist-0.3.1.0 Configuring json-0.9.2... Building json-0.9.2... Installed hxt-charproperties-9.2.0.1 Configuring regex-tdfa-1.2.3... Building regex-tdfa-1.2.3... Installed json-0.9.2 Configuring semigroups-0.18.4... Building semigroups-0.18.4... Installed semigroups-0.18.4 Configuring th-abstraction-0.2.6.0... Building th-abstraction-0.2.6.0... Installed th-abstraction-0.2.6.0 Configuring transformers-compat-0.6.1.5... Building transformers-compat-0.6.1.5... Installed transformers-compat-0.6.1.5 Configuring extra-1.6.6... Building extra-1.6.6... Installed regex-tdfa-1.2.3 Configuring hxt-unicode-9.0.2.4... Building hxt-unicode-9.0.2.4... Installed hxt-unicode-9.0.2.4 Configuring hxt-regex-xmlschema-9.2.0.3... Installed extra-1.6.6 Configuring tagged-0.8.5... Building hxt-regex-xmlschema-9.2.0.3... Building tagged-0.8.5... Installed tagged-0.8.5 Configuring exceptions-0.8.3... Building exceptions-0.8.3... Installed hxt-regex-xmlschema-9.2.0.3 Configuring contravariant-1.4.1... Building contravariant-1.4.1... Installed exceptions-0.8.3 Configuring distributive-0.5.3... Installed contravariant-1.4.1 Configuring hxt-9.3.1.16... Building hxt-9.3.1.16... Building distributive-0.5.3... Installed distributive-0.5.3 Configuring transformers-either-0.1.0... Building transformers-either-0.1.0... Installed transformers-either-0.1.0 Configuring comonad-5.0.3... Building comonad-5.0.3... Installed comonad-5.0.3 Configuring bifunctors-5.5.2... Building bifunctors-5.5.2... Installed bifunctors-5.5.2 Configuring semigroupoids-5.2.2... Building semigroupoids-5.2.2... Installed semigroupoids-5.2.2 Configuring profunctors-5.2.2... Building profunctors-5.2.2... Installed hxt-9.3.1.16 Installed profunctors-5.2.2 Configuring either-5... Building either-5... Installed either-5 Downloading katydid-0.3.0.1... Configuring katydid-0.3.0.1... Building katydid-0.3.0.1... Failed to install katydid-0.3.0.1 Build log ( /home/builder/.cabal/logs/ghc-8.2.2/katydid-0.3.0.1-3eytza2nsDQHH2MsQtGcvI.log ): cabal: Entering directory '/tmp/cabal-tmp-15705/katydid-0.3.0.1' Configuring katydid-0.3.0.1... Preprocessing library for katydid-0.3.0.1.. Building library for katydid-0.3.0.1.. [ 1 of 23] Compiling Parsers ( src/Parsers.hs, dist/build/Parsers.o ) [ 2 of 23] Compiling Json ( src/Json.hs, dist/build/Json.o ) [ 3 of 23] Compiling Expr ( src/Expr.hs, dist/build/Expr.o ) src/Expr.hs:279:39: error: • Variable not in scope: (<>) :: Ordering -> Ordering -> t2 • Perhaps you meant one of these: ‘<$>’ (imported from Prelude), ‘*>’ (imported from Prelude), ‘<$’ (imported from Prelude) | 279 | cmp a b = compare (_hash a) (_hash b) <> | ^^ src/Expr.hs:280:33: error: • Variable not in scope: (<>) :: t2 -> Ordering -> t1 • Perhaps you meant one of these: ‘<$>’ (imported from Prelude), ‘*>’ (imported from Prelude), ‘<$’ (imported from Prelude) | 280 | compare (_name a) (_name b) <> | ^^ src/Expr.hs:281:55: error: • Variable not in scope: (<>) :: t1 -> Ordering -> t0 • Perhaps you meant one of these: ‘<$>’ (imported from Prelude), ‘*>’ (imported from Prelude), ‘<$’ (imported from Prelude) | 281 | compare (length (_params a)) (length (_params b)) <> | ^^ src/Expr.hs:282:11: error: • Variable not in scope: (<>) :: Ordering -> Ordering -> Ordering • Perhaps you meant one of these: ‘<$>’ (imported from Prelude), ‘*>’ (imported from Prelude), ‘<$’ (imported from Prelude) | 282 | foldl (<>) EQ (zipWith cmp (_params a) (_params b)) <> | ^^^^ src/Expr.hs:282:57: error: • Variable not in scope: (<>) :: t0 -> Ordering -> Ordering • Perhaps you meant one of these: ‘<$>’ (imported from Prelude), ‘*>’ (imported from Prelude), ‘<$’ (imported from Prelude) | 282 | foldl (<>) EQ (zipWith cmp (_params a) (_params b)) <> | ^^ cabal: Leaving directory '/tmp/cabal-tmp-15705/katydid-0.3.0.1' cabal: Error: some packages failed to install: katydid-0.3.0.1-3eytza2nsDQHH2MsQtGcvI failed during the building phase. The exception was: ExitFailure 1