Resolving dependencies... Configuring mtl-2.2.1... Configuring semigroups-0.18.3... Building mtl-2.2.1... Building semigroups-0.18.3... Installed semigroups-0.18.3 Configuring stm-2.4.4.1... Building stm-2.4.4.1... Configuring void-0.7.2... Installed mtl-2.2.1 Building void-0.7.2... Configuring transformers-compat-0.5.1.4... Installed stm-2.4.4.1 Building transformers-compat-0.5.1.4... Installed void-0.7.2 Configuring StateVar-1.1.0.4... Building StateVar-1.1.0.4... Configuring async-2.1.1.1... Installed transformers-compat-0.5.1.4 Building async-2.1.1.1... Installed StateVar-1.1.0.4 Configuring exceptions-0.8.3... Building exceptions-0.8.3... Installed async-2.1.1.1 Configuring mmorph-1.1.0... Building mmorph-1.1.0... Configuring contravariant-1.4... Installed exceptions-0.8.3 Building contravariant-1.4... Installed mmorph-1.1.0 Configuring pipes-4.3.4... Building pipes-4.3.4... Installed contravariant-1.4 Installed pipes-4.3.4 Downloading pipes-concurrency-2.0.8... Configuring pipes-concurrency-2.0.8... Building pipes-concurrency-2.0.8... Installed pipes-concurrency-2.0.8