Resolving dependencies...
Configuring base-orphans-0.5.4...
Configuring mtl-2.2.1...
Building base-orphans-0.5.4...
Building mtl-2.2.1...
Installed base-orphans-0.5.4
Configuring parallel-3.2.1.0...
Building parallel-3.2.1.0...
Configuring prelude-extras-0.4.0.3...
Installed parallel-3.2.1.0
Configuring primitive-0.6.1.0...
Installed mtl-2.2.1
Building prelude-extras-0.4.0.3...
Building primitive-0.6.1.0...
Configuring reflection-2.1.2...
Installed prelude-extras-0.4.0.3
Building reflection-2.1.2...
Configuring semigroups-0.18.2...
Installed primitive-0.6.1.0
Building semigroups-0.18.2...
Configuring stm-2.4.4.1...
Installed semigroups-0.18.2
Building stm-2.4.4.1...
Configuring transformers-compat-0.5.1.4...
Installed reflection-2.1.2
Configuring text-1.2.2.1...
Installed stm-2.4.4.1
Building transformers-compat-0.5.1.4...
Building text-1.2.2.1...
Installed transformers-compat-0.5.1.4
Configuring StateVar-1.1.0.4...
Building StateVar-1.1.0.4...
Configuring vector-0.11.0.0...
Installed StateVar-1.1.0.4
Building vector-0.11.0.0...
Configuring mmorph-1.0.9...
Installed text-1.2.2.1
Building mmorph-1.0.9...
Configuring exceptions-0.8.3...
Installed mmorph-1.0.9
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 pipes-4.3.2...
Building pipes-4.3.2...
Configuring hashable-1.2.4.0...
Installed vector-0.11.0.0
Building hashable-1.2.4.0...
Configuring distributive-0.5.0.2...
Installed hashable-1.2.4.0
Installed pipes-4.3.2
Configuring mwc-random-0.13.5.0...
Building mwc-random-0.13.5.0...
Building distributive-0.5.0.2...
Configuring void-0.7.1...
Installed distributive-0.5.0.2
Building void-0.7.1...
Configuring unordered-containers-0.2.7.1...
Installed mwc-random-0.13.5.0
Building unordered-containers-0.2.7.1...
Configuring mwc-probability-1.3.0...
Installed void-0.7.1
Building mwc-probability-1.3.0...
Configuring contravariant-1.4...
Installed mwc-probability-1.3.0
Building contravariant-1.4...
Configuring mcmc-types-1.0.3...
Installed contravariant-1.4
Building mcmc-types-1.0.3...
Installed unordered-containers-0.2.7.1
Configuring comonad-5...
Installed mcmc-types-1.0.3
Building comonad-5...
Installed comonad-5
Configuring bifunctors-5.4.1...
Building bifunctors-5.4.1...
Installed bifunctors-5.4.1
Configuring profunctors-5.2...
Configuring semigroupoids-5.1...
Building profunctors-5.2...
Building semigroupoids-5.1...
Installed profunctors-5.2
Installed semigroupoids-5.1
Configuring free-4.12.4...
Building free-4.12.4...
Installed free-4.12.4
Configuring adjunctions-4.3...
Building adjunctions-4.3...
Installed adjunctions-4.3
Configuring kan-extensions-5.0.1...
Building kan-extensions-5.0.1...
Installed kan-extensions-5.0.1
Configuring mighty-metropolis-1.2.0...
Configuring lens-4.15.1...
Building mighty-metropolis-1.2.0...
Installed mighty-metropolis-1.2.0
Building lens-4.15.1...
Installed lens-4.15.1
Configuring hasty-hamiltonian-1.3.0...
Configuring speedy-slice-0.3.0...
Building speedy-slice-0.3.0...
Building hasty-hamiltonian-1.3.0...
Installed speedy-slice-0.3.0
Installed hasty-hamiltonian-1.3.0
Configuring declarative-0.5.0...
Building declarative-0.5.0...
Failed to install declarative-0.5.0
Build log ( /home/builder/.cabal/logs/declarative-0.5.0.log ):
cabal: Entering directory '/tmp/cabal-tmp-27109/declarative-0.5.0'
Configuring declarative-0.5.0...
Building declarative-0.5.0...
Preprocessing library declarative-0.5.0...
[1 of 2] Compiling Numeric.MCMC.Anneal ( lib/Numeric/MCMC/Anneal.hs, dist/build/Numeric/MCMC/Anneal.o )
[2 of 2] Compiling Numeric.MCMC     ( lib/Numeric/MCMC.hs, dist/build/Numeric/MCMC.o )

lib/Numeric/MCMC.hs:72:5: error:
    Ambiguous occurrence ‘chain’
    It could refer to either ‘Numeric.MCMC.Metropolis.chain’,
                             imported from ‘Numeric.MCMC.Metropolis’ at lib/Numeric/MCMC.hs:98:1-44
                          or ‘Numeric.MCMC.Slice.chain’,
                             imported from ‘Numeric.MCMC.Slice’ at lib/Numeric/MCMC.hs:100:1-39
                          or ‘Numeric.MCMC.Hamiltonian.chain’,
                             imported from ‘Numeric.MCMC.Hamiltonian’ at lib/Numeric/MCMC.hs:99:1-45
                          or ‘Numeric.MCMC.chain’, defined at lib/Numeric/MCMC.hs:185:1
cabal: Leaving directory '/tmp/cabal-tmp-27109/declarative-0.5.0'
cabal: Error: some packages failed to install:
declarative-0.5.0 failed during the building phase. The exception was:
ExitFailure 1