Resolving dependencies...
Starting     abstract-par-0.3.3
Starting     cabal-doctest-1.0.8
Starting     base-orphans-0.8.2
Starting     base-compat-0.11.1
Building     abstract-par-0.3.3
Building     cabal-doctest-1.0.8
Building     base-orphans-0.8.2
Building     base-compat-0.11.1
Completed    abstract-par-0.3.3
Starting     cereal-0.5.8.1
Building     cereal-0.5.8.1
Completed    cabal-doctest-1.0.8
Starting     data-default-class-0.1.2.0
Building     data-default-class-0.1.2.0
Completed    base-orphans-0.8.2
Starting     dlist-0.8.0.8
Building     dlist-0.8.0.8
Completed    data-default-class-0.1.2.0
Starting     double-conversion-2.0.2.0
Building     double-conversion-2.0.2.0
Completed    dlist-0.8.0.8
Starting     hashable-1.3.0.0
Completed    base-compat-0.11.1
Starting     integer-logarithms-1.0.3
Building     hashable-1.3.0.0
Building     integer-logarithms-1.0.3
Completed    cereal-0.5.8.1
Starting     parallel-3.2.2.0
Building     parallel-3.2.2.0
Completed    integer-logarithms-1.0.3
Starting     primitive-0.7.1.0
Completed    double-conversion-2.0.2.0
Starting     splitmix-0.1
Building     primitive-0.7.1.0
Building     splitmix-0.1
Completed    hashable-1.3.0.0
Starting     tagged-0.8.6
Building     tagged-0.8.6
Completed    parallel-3.2.2.0
Starting     th-abstraction-0.3.2.0
Building     th-abstraction-0.3.2.0
Completed    splitmix-0.1
Starting     transformers-compat-0.6.5
Building     transformers-compat-0.6.5
Completed    tagged-0.8.6
Starting     time-compat-1.9.3
Building     time-compat-1.9.3
Completed    transformers-compat-0.6.5
Starting     base-compat-batteries-0.11.1
Building     base-compat-batteries-0.11.1
Completed    th-abstraction-0.3.2.0
Starting     unordered-containers-0.2.11.0
Building     unordered-containers-0.2.11.0
Completed    time-compat-1.9.3
Starting     async-2.2.2
Building     async-2.2.2
Completed    base-compat-batteries-0.11.1
Starting     random-1.2.0
Completed    async-2.2.2
Starting     distributive-0.6.2
Completed    primitive-0.7.1.0
Building     random-1.2.0
Starting     vector-0.12.1.2
Building     vector-0.12.1.2
Building     distributive-0.6.2
Completed    unordered-containers-0.2.11.0
Starting     scientific-0.3.6.2
Building     scientific-0.3.6.2
Completed    distributive-0.6.2
Starting     comonad-5.0.6
Completed    random-1.2.0
Starting     uuid-types-1.0.3
Building     uuid-types-1.0.3
Building     comonad-5.0.6
Completed    scientific-0.3.6.2
Starting     monad-par-extras-0.3.3
Building     monad-par-extras-0.3.3
Completed    uuid-types-1.0.3
Starting     abstract-deque-0.3
Building     abstract-deque-0.3
Completed    comonad-5.0.6
Starting     attoparsec-0.13.2.4
Completed    monad-par-extras-0.3.3
Starting     bifunctors-5.5.7
Completed    abstract-deque-0.3
Building     attoparsec-0.13.2.4
Building     bifunctors-5.5.7
Completed    attoparsec-0.13.2.4
Starting     elynx-nexus-0.3.1
Building     elynx-nexus-0.3.1
Failed to install elynx-nexus-0.3.1
Build log ( /home/builder/.cabal/logs/ghc-8.6.3/elynx-nexus-0.3.1-9Ft3ZVeuCTZD1EZbI9uHrt.log ):
cabal: Entering directory '/tmp/cabal-tmp-9152/elynx-nexus-0.3.1'
Configuring elynx-nexus-0.3.1...
Preprocessing library for elynx-nexus-0.3.1..
Building library for elynx-nexus-0.3.1..

<no location info>: error:
    Warning: Couldn't figure out LLVM version!
             Make sure you have installed LLVM 6.0
[1 of 3] Compiling ELynx.Export.Nexus ( src/ELynx/Export/Nexus.hs, dist/build/ELynx/Export/Nexus.o )

<no location info>: error:
    Warning: Couldn't figure out LLVM version!
             Make sure you have installed LLVM 6.0
ghc: could not execute: opt
cabal: Leaving directory '/tmp/cabal-tmp-9152/elynx-nexus-0.3.1'
Completed    bifunctors-5.5.7
Completed    vector-0.12.1.2
cabal: Error: some packages failed to install:
elynx-nexus-0.3.1-9Ft3ZVeuCTZD1EZbI9uHrt failed during the building phase. The
exception was:
ExitFailure 1
elynx-tree-0.3.1-9lckdkHBizGBCtQvuu3Nr9 depends on elynx-tree-0.3.1 which
failed to install.