Resolving dependencies... Configuring ansi-terminal-0.6.3.1... Configuring base-orphans-0.6... Building ansi-terminal-0.6.3.1... Building base-orphans-0.6... Installed base-orphans-0.6 Configuring cabal-doctest-1.0.2... Building cabal-doctest-1.0.2... Installed ansi-terminal-0.6.3.1 Configuring cereal-0.5.4.0... Building cereal-0.5.4.0... Configuring colour-2.3.3... Installed cabal-doctest-1.0.2 Building colour-2.3.3... Configuring data-default-class-0.1.2.0... Installed cereal-0.5.4.0 Building data-default-class-0.1.2.0... Configuring diagrams-solve-0.1.0.1... Installed data-default-class-0.1.2.0 Configuring fingertree-0.1.1.0... Installed colour-2.3.3 Building diagrams-solve-0.1.0.1... Building fingertree-0.1.1.0... Configuring fail-4.9.0.0... Installed diagrams-solve-0.1.0.1 Building fail-4.9.0.0... Configuring groups-0.4.0.0... Installed fail-4.9.0.0 Building groups-0.4.0.0... Configuring integer-logarithms-1.0.1... Installed fingertree-0.1.1.0 Configuring newtype-0.2... Installed groups-0.4.0.0 Building integer-logarithms-1.0.1... Building newtype-0.2... Configuring mtl-2.2.1... Installed newtype-0.2 Configuring prelude-extras-0.4.0.3... Installed integer-logarithms-1.0.1 Building mtl-2.2.1... Building prelude-extras-0.4.0.3... Configuring parallel-3.2.1.1... Installed mtl-2.2.1 Configuring random-1.1... Installed prelude-extras-0.4.0.3 Building parallel-3.2.1.1... Building random-1.1... Configuring primitive-0.6.2.0... Installed parallel-3.2.1.1 Building primitive-0.6.2.0... Configuring semigroups-0.18.3... Installed random-1.1 Building semigroups-0.18.3... Configuring reflection-2.1.2... Installed semigroups-0.18.3 Building reflection-2.1.2... Configuring split-0.2.3.2... Installed primitive-0.6.2.0 Building split-0.2.3.2... Configuring stm-2.4.4.1... Installed reflection-2.1.2 Building stm-2.4.4.1... Configuring th-abstraction-0.2.1.0... Installed split-0.2.3.2 Building th-abstraction-0.2.1.0... Configuring text-1.2.2.2... Installed stm-2.4.4.1 Building text-1.2.2.2... Configuring transformers-compat-0.5.1.4... Installed th-abstraction-0.2.1.0 Building transformers-compat-0.5.1.4... Configuring unix-compat-0.4.3.1... Installed transformers-compat-0.5.1.4 Building unix-compat-0.4.3.1... Configuring utf8-string-1.0.1.1... Installed unix-compat-0.4.3.1 Building utf8-string-1.0.1.1... Configuring void-0.7.2... Installed utf8-string-1.0.1.1 Building void-0.7.2... Configuring zlib-0.6.1.2... Installed void-0.7.2 Building zlib-0.6.1.2... Installed text-1.2.2.2 Configuring ansi-wl-pprint-0.6.7.3... Building ansi-wl-pprint-0.6.7.3... Configuring vector-0.12.0.1... Installed zlib-0.6.1.2 Building vector-0.12.0.1... Installed ansi-wl-pprint-0.6.7.3 Configuring async-2.1.1.1... Building async-2.1.1.1... Configuring StateVar-1.1.0.4... Installed async-2.1.1.1 Building StateVar-1.1.0.4... Configuring statestack-0.2.0.5... Installed StateVar-1.1.0.4 Building statestack-0.2.0.5... Configuring exceptions-0.8.3... Installed statestack-0.2.0.5 Building exceptions-0.8.3... Configuring tagged-0.8.5... Installed exceptions-0.8.3 Building tagged-0.8.5... Installed tagged-0.8.5 Configuring hashable-1.2.6.0... Building hashable-1.2.6.0... Installed hashable-1.2.6.0 Configuring optparse-applicative-0.13.2.0... Building optparse-applicative-0.13.2.0... Configuring hinotify-0.3.9... Installed vector-0.12.0.1 Building hinotify-0.3.9... Installed optparse-applicative-0.13.2.0 Configuring contravariant-1.4... Building contravariant-1.4... Configuring distributive-0.5.2... Installed hinotify-0.3.9 Installed contravariant-1.4 Configuring unordered-containers-0.2.8.0... Building unordered-containers-0.2.8.0... Building distributive-0.5.2... Warning: /tmp/pkgConf-distributive-0.519607098591760281936.2: Unrecognized field dynamic-library-dirs on line 22 Installed distributive-0.5.2 Configuring JuicyPixels-3.2.8.1... Building JuicyPixels-3.2.8.1... Configuring hashtables-1.2.1.1... Installed unordered-containers-0.2.8.0 Building hashtables-1.2.1.1... Configuring scientific-0.3.4.15... Installed hashtables-1.2.1.1 Building scientific-0.3.4.15... Configuring sym-0.12.1... Installed scientific-0.3.4.15 Building sym-0.12.1... Configuring fsnotify-0.2.1... Failed to install sym-0.12.1 Build log ( /home/builder/.cabal/logs/sym-0.12.1.log ): cabal: Entering directory '/tmp/cabal-tmp-28946/sym-0.12.1' Configuring sym-0.12.1... Building sym-0.12.1... Preprocessing library sym-0.12.1... [ 1 of 20] Compiling Sym.Internal.Util ( Sym/Internal/Util.hs, dist/build/Sym/Internal/Util.o ) [ 2 of 20] Compiling Sym.Internal.Size ( Sym/Internal/Size.hs, dist/build/Sym/Internal/Size.o ) [ 3 of 20] Compiling Sym.Internal.CLongArray ( Sym/Internal/CLongArray.hs, dist/build/Sym/Internal/CLongArray.o ) [ 4 of 20] Compiling Sym.Internal.SubSeq ( Sym/Internal/SubSeq.hs, dist/build/Sym/Internal/SubSeq.o ) [ 5 of 20] Compiling Sym.Perm ( Sym/Perm.hs, dist/build/Sym/Perm.o ) [ 6 of 20] Compiling Sym.Perm.Bijection ( Sym/Perm/Bijection.hs, dist/build/Sym/Perm/Bijection.o ) [ 7 of 20] Compiling Sym.Perm.D8 ( Sym/Perm/D8.hs, dist/build/Sym/Perm/D8.o ) [ 8 of 20] Compiling Sym.Perm.Component ( Sym/Perm/Component.hs, dist/build/Sym/Perm/Component.o ) [ 9 of 20] Compiling Sym.Perm.Group ( Sym/Perm/Group.hs, dist/build/Sym/Perm/Group.o ) [10 of 20] Compiling Sym.Perm.MeshPattern ( Sym/Perm/MeshPattern.hs, dist/build/Sym/Perm/MeshPattern.o ) [11 of 20] Compiling Sym.Perm.Pattern ( Sym/Perm/Pattern.hs, dist/build/Sym/Perm/Pattern.o ) [12 of 20] Compiling Sym.Perm.SSYT ( Sym/Perm/SSYT.hs, dist/build/Sym/Perm/SSYT.o ) [13 of 20] Compiling Sym.Perm.Simple ( Sym/Perm/Simple.hs, dist/build/Sym/Perm/Simple.o ) [14 of 20] Compiling Sym.Perm.Sort ( Sym/Perm/Sort.hs, dist/build/Sym/Perm/Sort.o ) [15 of 20] Compiling Sym.Perm.Stat ( Sym/Perm/Stat.hs, dist/build/Sym/Perm/Stat.o ) [16 of 20] Compiling Sym.Permgram ( Sym/Permgram.hs, dist/build/Sym/Permgram.o ) Sym/Permgram.hs:26:1: warning: [-Wunused-imports] The import of ‘Control.Applicative’ is redundant except perhaps to import instances from ‘Control.Applicative’ To import instances alone, use: import Control.Applicative() [17 of 20] Compiling Sym.Perm.Constructions ( Sym/Perm/Constructions.hs, dist/build/Sym/Perm/Constructions.o ) [18 of 20] Compiling Sym.Perm.Class ( Sym/Perm/Class.hs, dist/build/Sym/Perm/Class.o ) [19 of 20] Compiling Sym.Perm.Meta ( Sym/Perm/Meta.hs, dist/build/Sym/Perm/Meta.o ) [20 of 20] Compiling Sym ( Sym.hs, dist/build/Sym.o ) Sym.hs:94:5: error: • Constraint ‘Permutation a’ in the type of ‘unst’ constrains only the class type variables Use ConstrainedClassMethods to allow it • When checking the class method: unst :: forall a. (Permutation a, Permutation a) => Perm -> a In the class declaration for ‘Permutation’ cabal: Leaving directory '/tmp/cabal-tmp-28946/sym-0.12.1' Building fsnotify-0.2.1... Installed fsnotify-0.2.1 Configuring intervals-0.8... Building intervals-0.8... Configuring comonad-5.0.1... Installed JuicyPixels-3.2.8.1 Building comonad-5.0.1... Warning: /tmp/pkgConf-intervals-01909002904165344818.8: Unrecognized field dynamic-library-dirs on line 27 Configuring gtk2hs-buildtools-0.13.2.2... Installed intervals-0.8 Building gtk2hs-buildtools-0.13.2.2... Warning: /tmp/pkgConf-comonad-5.01395235128532670688.1: Unrecognized field dynamic-library-dirs on line 29 Configuring bytes-0.15.3... Installed comonad-5.0.1 Building bytes-0.15.3... Warning: /tmp/pkgConf-bytes-0.15706043324496987743.3: Unrecognized field dynamic-library-dirs on line 23 Installed bytes-0.15.3 Configuring bifunctors-5.4.2... Building bifunctors-5.4.2... Installed bifunctors-5.4.2 Configuring profunctors-5.2... Building profunctors-5.2... Configuring semigroupoids-5.2... Installed profunctors-5.2 Installed gtk2hs-buildtools-0.13.2.2 Configuring glib-0.13.4.1... Building semigroupoids-5.2... Building glib-0.13.4.1... Warning: /tmp/pkgConf-semigroupoids-51034949299654887343.2: Unrecognized field dynamic-library-dirs on line 60 Configuring cairo-0.13.3.1... Installed semigroupoids-5.2 Building cairo-0.13.3.1... Warning: /tmp/pkgConf-cairo-0.13.38890233111494613810.1: Unrecognized field dynamic-library-dirs on line 39 Installed cairo-0.13.3.1 Configuring free-4.12.4... Warning: /tmp/pkgConf-glib-0.13.414472676051369321801.1: Unrecognized field dynamic-library-dirs on line 32 Configuring monoid-extras-0.4.2... Installed glib-0.13.4.1 Building free-4.12.4... Building monoid-extras-0.4.2... Installed monoid-extras-0.4.2 Configuring pango-0.13.3.1... Building pango-0.13.3.1... Configuring dual-tree-0.2.0.9... Installed free-4.12.4 Building dual-tree-0.2.0.9... Installed dual-tree-0.2.0.9 Configuring adjunctions-4.3... Building adjunctions-4.3... Installed adjunctions-4.3 Configuring kan-extensions-5.0.2... Building kan-extensions-5.0.2... Installed kan-extensions-5.0.2 Configuring lens-4.15.3... Building lens-4.15.3... Warning: /tmp/pkgConf-pango-0.13.3404158660937370163.1: Unrecognized field dynamic-library-dirs on line 33 Installed pango-0.13.3.1 Warning: /tmp/pkgConf-lens-4.1520586571991973387981.3: Unrecognized field dynamic-library-dirs on line 122 Installed lens-4.15.3 Configuring linear-1.20.6... Building linear-1.20.6... Warning: /tmp/pkgConf-linear-1.2020251871901967681095.6: Unrecognized field dynamic-library-dirs on line 26 Installed linear-1.20.6 Configuring active-0.2.0.13... Configuring diagrams-core-1.4... Building diagrams-core-1.4... Building active-0.2.0.13... Installed active-0.2.0.13 Installed diagrams-core-1.4 Configuring diagrams-lib-1.4.1.1... Building diagrams-lib-1.4.1.1... Installed diagrams-lib-1.4.1.1 Configuring diagrams-cairo-1.4... Building diagrams-cairo-1.4... Installed diagrams-cairo-1.4 cabal: Error: some packages failed to install: sym-0.12.1 failed during the building phase. The exception was: ExitFailure 1 sym-plot-0.3.0 depends on sym-0.12.1 which failed to install.