Warning: The install command is a part of the legacy v1 style of cabal usage. Please switch to using either the new project style and the new-install command or the legacy v1-install alias as new-style projects will become the default in the next version of cabal-install. Please file a bug if you cannot replicate a working v1- use case with the new-style commands. For more information, see: https://wiki.haskell.org/Cabal/NewBuild Resolving dependencies... Warning: The following packages are likely to be broken by the reinstalls: parsec-3.1.13.0 Cabal-2.4.0.1 Continuing even though the plan contains dangerous reinstalls. Starting cabal-doctest-1.0.6 Starting clock-0.8 Starting base-orphans-0.8.1 Starting data-default-class-0.1.2.0 Building base-orphans-0.8.1 Building cabal-doctest-1.0.6 Building clock-0.8 Building data-default-class-0.1.2.0 Completed base-orphans-0.8.1 Starting dlist-0.8.0.6 Completed data-default-class-0.1.2.0 Starting hashable-1.3.0.0 Building dlist-0.8.0.6 Completed clock-0.8 Starting integer-logarithms-1.0.3 Building hashable-1.3.0.0 Building integer-logarithms-1.0.3 Completed cabal-doctest-1.0.6 Starting monad-loops-0.4.3 Building monad-loops-0.4.3 Completed integer-logarithms-1.0.3 Starting network-3.1.0.0 Completed dlist-0.8.0.6 Starting random-1.1 Building random-1.1 Completed monad-loops-0.4.3 Starting semigroups-0.19 Building semigroups-0.19 Completed hashable-1.3.0.0 Starting split-0.2.3.3 Building split-0.2.3.3 Completed semigroups-0.19 Starting stm-chans-3.0.0.4 Building network-3.1.0.0 Completed split-0.2.3.3 Starting th-abstraction-0.3.1.0 Completed random-1.1 Starting transformers-0.5.6.2 Building th-abstraction-0.3.1.0 Building transformers-0.5.6.2 Building stm-chans-3.0.0.4 Completed stm-chans-3.0.0.4 Starting void-0.7.3 Building void-0.7.3 Completed th-abstraction-0.3.1.0 Starting zlib-0.6.2 Building zlib-0.6.2 Completed void-0.7.3 Starting unordered-containers-0.2.10.0 Building unordered-containers-0.2.10.0 Completed network-3.1.0.0 Starting async-2.2.2 Building async-2.2.2 Completed async-2.2.2 Starting extra-1.6.17 Completed zlib-0.6.2 Starting dlist-instances-0.1.1.1 Building extra-1.6.17 Building dlist-instances-0.1.1.1 Completed transformers-0.5.6.2 Starting unliftio-core-0.1.2.0 Completed dlist-instances-0.1.1.1 Starting typed-process-0.2.4.1 Building unliftio-core-0.1.2.0 Building typed-process-0.2.4.1 Completed unliftio-core-0.1.2.0 Starting transformers-compat-0.6.5 Building transformers-compat-0.6.5 Completed unordered-containers-0.2.10.0 Starting tagged-0.8.6 Completed typed-process-0.2.4.1 Starting streaming-commons-0.2.1.1 Building tagged-0.8.6 Completed extra-1.6.17 Starting say-0.1.0.1 Building streaming-commons-0.2.1.1 Building say-0.1.0.1 Completed transformers-compat-0.6.5 Starting primitive-0.7.0.0 Completed say-0.1.0.1 Starting mtl-2.2.2 Building primitive-0.7.0.0 Building mtl-2.2.2 Completed tagged-0.8.6 Starting StateVar-1.2 Building StateVar-1.2 Completed StateVar-1.2 Starting unliftio-0.2.11 Building unliftio-0.2.11 Completed mtl-2.2.2 Starting transformers-base-0.4.5.2 Building transformers-base-0.4.5.2 Completed streaming-commons-0.2.1.1 Starting distributive-0.6 Completed transformers-base-0.4.5.2 Starting contravariant-1.5.2 Building contravariant-1.5.2 Building distributive-0.6 Completed contravariant-1.5.2 Starting exceptions-0.10.2 Completed distributive-0.6 Starting comonad-5.0.5 Building exceptions-0.10.2 Completed unliftio-0.2.11 Completed primitive-0.7.0.0 Starting scientific-0.3.6.2 Starting vector-0.12.0.3 Building scientific-0.3.6.2 Building vector-0.12.0.3 Building comonad-5.0.5 Completed exceptions-0.10.2 Starting resourcet-1.2.2 Building resourcet-1.2.2 Completed scientific-0.3.6.2 Starting attoparsec-0.13.2.2 Building attoparsec-0.13.2.2 Completed comonad-5.0.5 Starting bifunctors-5.5.4 Building bifunctors-5.5.4 Completed resourcet-1.2.2 Completed attoparsec-0.13.2.2 Completed bifunctors-5.5.4 Starting profunctors-5.4 Starting semigroupoids-5.3.2 Building profunctors-5.4 Building semigroupoids-5.3.2 Completed profunctors-5.4 Starting invariant-0.5.3 Building invariant-0.5.3 Completed semigroupoids-5.3.2 Starting free-5.1.1 Building free-5.1.1 Completed vector-0.12.0.3 Starting chunked-data-0.3.1 Starting vector-algorithms-0.8.0.1 Completed invariant-0.5.3 Starting basic-prelude-0.7.0 Building chunked-data-0.3.1 Building vector-algorithms-0.8.0.1 Building basic-prelude-0.7.0 Completed chunked-data-0.3.1 Completed basic-prelude-0.7.0 Completed vector-algorithms-0.8.0.1 Starting mono-traversable-1.0.11.0 Building mono-traversable-1.0.11.0 Completed free-5.1.1 Starting keys-3.12.2 Starting adjunctions-4.4 Building keys-3.12.2 Building adjunctions-4.4 Completed adjunctions-4.4 Starting kan-extensions-5.2 Completed keys-3.12.2 Building kan-extensions-5.2 Completed kan-extensions-5.2 Starting pointed-5.0.1 Completed mono-traversable-1.0.11.0 Starting mutable-containers-0.3.4 Starting conduit-1.3.1.1 Building pointed-5.0.1 Building conduit-1.3.1.1 Building mutable-containers-0.3.4 Completed pointed-5.0.1 Starting vector-instances-3.4 Building vector-instances-3.4 Completed mutable-containers-0.3.4 Completed vector-instances-3.4 Starting mono-traversable-instances-0.1.0.0 Building mono-traversable-instances-0.1.0.0 Completed mono-traversable-instances-0.1.0.0 Starting classy-prelude-1.5.0 Building classy-prelude-1.5.0 Completed conduit-1.3.1.1 Starting conduit-extra-1.3.1.1 Building conduit-extra-1.3.1.1 Completed classy-prelude-1.5.0 Completed conduit-extra-1.3.1.1 Downloading conduit-vfs-0.1.0.2 Downloaded conduit-vfs-0.1.0.2 Starting conduit-vfs-0.1.0.2 Building conduit-vfs-0.1.0.2 Completed conduit-vfs-0.1.0.2