Resolving dependencies... Configuring abstract-par-0.3.3... Configuring mtl-2.2.1... Building abstract-par-0.3.3... Building mtl-2.2.1... Installed abstract-par-0.3.3 Configuring primitive-0.6.1.0... Building primitive-0.6.1.0... Configuring random-1.1... Installed mtl-2.2.1 Building random-1.1... Configuring text-1.2.2.1... Installed primitive-0.6.1.0 Building text-1.2.2.1... Installed random-1.1 Configuring fclabels-2.0.3.2... Building fclabels-2.0.3.2... Installed fclabels-2.0.3.2 Configuring vector-0.11.0.0... Building vector-0.11.0.0... Configuring abstract-deque-0.3... Installed text-1.2.2.1 Building abstract-deque-0.3... Configuring tf-random-0.5... Installed abstract-deque-0.3 Building tf-random-0.5... Installed tf-random-0.5 Configuring QuickCheck-2.9.2... Building QuickCheck-2.9.2... Configuring hashable-1.2.4.0... Installed vector-0.11.0.0 Building hashable-1.2.4.0... Configuring mwc-random-0.13.5.0... Installed hashable-1.2.4.0 Building mwc-random-0.13.5.0... Installed QuickCheck-2.9.2 Configuring unordered-containers-0.2.7.2... Building unordered-containers-0.2.7.2... Configuring hashtables-1.2.1.0... Installed mwc-random-0.13.5.0 Building hashtables-1.2.1.0... Installed unordered-containers-0.2.7.2 Configuring meta-par-0.3... Building meta-par-0.3... Installed hashtables-1.2.1.0 Configuring accelerate-0.15.1.0... Building accelerate-0.15.1.0... Installed meta-par-0.3 Installed accelerate-0.15.1.0 Configuring abstract-par-accelerate-0.3.3... Building abstract-par-accelerate-0.3.3... Installed abstract-par-accelerate-0.3.3 Configuring meta-par-accelerate-0.3.5... Building meta-par-accelerate-0.3.5... Failed to install meta-par-accelerate-0.3.5 Build log ( /home/builder/.cabal/logs/meta-par-accelerate-0.3.5.log ): cabal: Entering directory '/tmp/cabal-tmp-20505/meta-par-accelerate-0.3.5' Configuring meta-par-accelerate-0.3.5... Building meta-par-accelerate-0.3.5... Preprocessing library meta-par-accelerate-0.3.5... [1 of 2] Compiling Control.Monad.Par.Meta.Resources.Accelerate ( Control/Monad/Par/Meta/Resources/Accelerate.hs, dist/build/Control/Monad/Par/Meta/Resources/Accelerate.o ) Control/Monad/Par/Meta/Resources/Accelerate.hs:169:1: warning: [-Worphans] Orphan instance: instance AC.ParAccelerate IVar Par To avoid this move the instance declaration to the module of the class or of the type, or wrap the type with a newtype and declare the instance on the new type. [2 of 2] Compiling Control.Monad.Par.Meta.AccSMP ( Control/Monad/Par/Meta/AccSMP.hs, dist/build/Control/Monad/Par/Meta/AccSMP.o ) Control/Monad/Par/Meta/AccSMP.hs:54:12: error: • No instance for (Applicative Par) arising from the 'deriving' clause of a data type declaration Possible fix: use a standalone 'deriving instance' declaration, so you can specify the instance context yourself There are instances for similar types: instance Applicative Meta.Par -- Defined in ‘Control.Monad.Par.Meta’ • When deriving the instance for (Monad Par) cabal: Leaving directory '/tmp/cabal-tmp-20505/meta-par-accelerate-0.3.5' cabal: Error: some packages failed to install: meta-par-accelerate-0.3.5 failed during the building phase. The exception was: ExitFailure 1