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... Starting Diff-0.4.0 Starting StateVar-1.2 Starting Only-0.1 Starting base-compat-0.11.0 Building StateVar-1.2 Building Diff-0.4.0 Building Only-0.1 Building base-compat-0.11.0 Completed Only-0.1 Starting base-orphans-0.8.1 Completed StateVar-1.2 Starting basement-0.0.11 Building base-orphans-0.8.1 Completed Diff-0.4.0 Building basement-0.0.11 Starting blaze-builder-0.4.1.0 Building blaze-builder-0.4.1.0 Completed base-orphans-0.8.1 Starting bzlib-0.5.0.5 Failed to install bzlib-0.5.0.5 Build log ( /home/builder/.cabal/logs/ghc-8.6.3/bzlib-0.5.0.5-8TMEZNLRAIMKxXCedq0SW1.log ): cabal: Entering directory '/tmp/cabal-tmp-12897/bzlib-0.5.0.5' Configuring bzlib-0.5.0.5... cabal: Missing dependency on a foreign library: * Missing (or bad) header file: bzlib.h * Missing (or bad) C library: bz2 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-12897/bzlib-0.5.0.5' Starting cabal-doctest-1.0.8 Building cabal-doctest-1.0.8 Completed blaze-builder-0.4.1.0 Completed base-compat-0.11.0 Completed cabal-doctest-1.0.8 Completed basement-0.0.11 cabal: Error: some packages failed to install: ats-pkg-3.4.0.1-7ujqF8ikR5y1PjMhb9tM7d depends on ats-pkg-3.4.0.1 which failed to install. bzlib-0.5.0.5-8TMEZNLRAIMKxXCedq0SW1 failed during the configure step. The exception was: ExitFailure 1