Resolving dependencies...
Starting     StateVar-1.2.2
Starting     dlist-1.0
Starting     base-orphans-0.8.6
Starting     base-compat-0.12.1
Building     StateVar-1.2.2
Building     dlist-1.0
Building     base-orphans-0.8.6
Building     base-compat-0.12.1
Completed    StateVar-1.2.2
Starting     indexed-traversable-0.1.2
Building     indexed-traversable-0.1.2
Completed    dlist-1.0
Starting     integer-logarithms-1.0.3.1
Building     integer-logarithms-1.0.3.1
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Starting     primitive-0.7.3.0
Completed    integer-logarithms-1.0.3.1
Starting     splitmix-0.1.0.4
Building     primitive-0.7.3.0
Building     splitmix-0.1.0.4
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Starting     tagged-0.8.6.1
Completed    indexed-traversable-0.1.2
Starting     th-abstraction-0.4.3.0
Building     tagged-0.8.6.1
Building     th-abstraction-0.4.3.0
Completed    splitmix-0.1.0.4
Starting     transformers-compat-0.7.1
Building     transformers-compat-0.7.1
Completed    tagged-0.8.6.1
Starting     contravariant-1.5.5
Building     contravariant-1.5.5
Completed    th-abstraction-0.4.3.0
Starting     hashable-1.4.0.1
Building     hashable-1.4.0.1
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Starting     random-1.2.1
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Starting     distributive-0.6.2.1
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Starting     comonad-5.0.8
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Starting     time-compat-1.9.6.1
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Starting     data-fix-0.3.2
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Starting     OneTuple-0.3.1
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Building     scientific-0.3.7.0
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Starting     bifunctors-5.5.11
Building     bifunctors-5.5.11
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Starting     uuid-types-1.0.5
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Starting     base-compat-batteries-0.12.1
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Starting     attoparsec-0.14.2
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Starting     these-1.1.1.1
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Starting     strict-0.4.0.1
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Starting     indexed-traversable-instances-0.1.1
Building     indexed-traversable-instances-0.1.1
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Starting     witherable-0.4.2
Starting     semialign-1.2.0.1
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Starting     aeson-2.0.2.0
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Completed    aeson-2.0.2.0
Starting     hruby-0.4.0.0
Failed to install hruby-0.4.0.0
Build log ( /home/builder/.cabal/logs/ghc-8.10.2/hruby-0.4.0.0-3ye8HsNxfW542UvH7QuXUV.log ):
cabal: Entering directory '/tmp/cabal-tmp-5537/hruby-0.4.0.0'
[1 of 1] Compiling Main             ( /tmp/cabal-tmp-5537/hruby-0.4.0.0/dist/setup/setup.hs, /tmp/cabal-tmp-5537/hruby-0.4.0.0/dist/setup/Main.o )
Linking /tmp/cabal-tmp-5537/hruby-0.4.0.0/dist/setup/setup ...
Configuring hruby-0.4.0.0...
Warning: Could not find the ruby library. Ensure that it is present on your
system (on Debian/Ubuntu, make sure you installed the ruby1.8-dev package).
If you know it to be installed, please install hruby in the following way
(example for nix):

$ cabal install hruby -p --configure-option="--rubyversion=19 --rubylib=ruby
--rubyinc=/nix/store/v0w14mdpcy9c0qwvhqa7154qsv53ifqn-ruby-1.9.3-p484/include/ruby-1.9.1
--rubyinc=/nix/store/v0w14mdpcy9c0qwvhqa7154qsv53ifqn-ruby-1.9.3-p484/include/ruby-1.9.1/x86_64-linux'
--extra-lib-dirs=$HOME/.nix-profile/lib/"

--rubylib : Should be the name of the library passed to the linker (ruby for
libruby.so).
--rubyinc : There can be several instances of this flag. Should be the path of
the various ruby header files.
--rubyversion : Mandatory for ruby 2.0 and 2.1, should have the values 20 or
21.
setup: Missing dependency on a foreign library:
* Missing (or bad) header file: ruby.h
* Missing (or bad) C library: ruby
This problem can usually be solved by installing the system package that
provides this library (you may need the "-dev" version). If the library is
already installed but in a non-standard location then you can use the flags
--extra-include-dirs= and --extra-lib-dirs= to specify where it is.If the
library file does exist, it may contain errors that are caught by the C
compiler at the preprocessing stage. In this case you can re-run configure
with the verbosity flag -v3 to see the error messages.
If the header file does exist, it may contain errors that are caught by the C
compiler at the preprocessing stage. In this case you can re-run configure
with the verbosity flag -v3 to see the error messages.

cabal: Leaving directory '/tmp/cabal-tmp-5537/hruby-0.4.0.0'
cabal: Error: some packages failed to install:
hruby-0.4.0.0-3ye8HsNxfW542UvH7QuXUV failed during the configure step. The
exception was:
ExitFailure 1