Resolving dependencies... Starting data-default-class-0.1.2.0 Starting dlist-1.0 Starting integer-logarithms-1.0.3.1 Starting hashable-1.3.1.0 Building data-default-class-0.1.2.0 Building dlist-1.0 Building integer-logarithms-1.0.3.1 Building hashable-1.3.1.0 Completed data-default-class-0.1.2.0 Starting old-locale-1.0.0.7 Completed integer-logarithms-1.0.3.1 Starting primitive-0.7.1.0 Building old-locale-1.0.0.7 Building primitive-0.7.1.0 Completed old-locale-1.0.0.7 Starting semigroups-0.19.1 Completed hashable-1.3.1.0 Starting splitmix-0.1.0.3 Completed dlist-1.0 Starting unix-compat-0.5.3 Building semigroups-0.19.1 Building splitmix-0.1.0.3 Building unix-compat-0.5.3 Completed semigroups-0.19.1 Starting unliftio-core-0.2.0.1 Building unliftio-core-0.2.0.1 Completed unix-compat-0.5.3 Starting data-default-instances-containers-0.0.1 Completed splitmix-0.1.0.3 Starting data-default-instances-old-locale-0.0.1 Building data-default-instances-containers-0.0.1 Completed unliftio-core-0.2.0.1 Starting unordered-containers-0.2.13.0 Building data-default-instances-old-locale-0.0.1 Building unordered-containers-0.2.13.0 Completed data-default-instances-containers-0.0.1 Starting data-default-instances-dlist-0.0.1 Completed data-default-instances-old-locale-0.0.1 Starting direct-sqlite-2.3.26 Building data-default-instances-dlist-0.0.1 Building direct-sqlite-2.3.26 Completed data-default-instances-dlist-0.0.1 Starting random-1.2.0 Building random-1.2.0 Completed primitive-0.7.1.0 Starting data-default-0.7.1.1 Building data-default-0.7.1.1 Completed random-1.2.0 Starting scientific-0.3.6.2 Building scientific-0.3.6.2 Completed data-default-0.7.1.1 Starting resourcet-1.2.4.2 Building resourcet-1.2.4.2 Completed unordered-containers-0.2.13.0 Starting uuid-types-1.0.5 Building uuid-types-1.0.5 Completed scientific-0.3.6.2 Starting attoparsec-0.14.1 Completed resourcet-1.2.4.2 Starting leveldb-haskell-0.6.5 Building attoparsec-0.14.1 Failed to install leveldb-haskell-0.6.5 Build log ( /home/builder/.cabal/logs/ghc-8.10.2/leveldb-haskell-0.6.5-Gwm8rVmEwQSERVD5h0MkdR.log ): cabal: Entering directory '/tmp/cabal-tmp-6771/leveldb-haskell-0.6.5' Configuring leveldb-haskell-0.6.5... cabal: Missing dependency on a foreign library: * Missing (or bad) C library: leveldb 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. cabal: Leaving directory '/tmp/cabal-tmp-6771/leveldb-haskell-0.6.5' Completed uuid-types-1.0.5 Completed direct-sqlite-2.3.26 Completed attoparsec-0.14.1 cabal: Error: some packages failed to install: bisc-0.3.0.0-5irUcC3PGGl8sUX3Qks6zD depends on bisc-0.3.0.0 which failed to install. leveldb-haskell-0.6.5-Gwm8rVmEwQSERVD5h0MkdR failed during the configure step. The exception was: ExitFailure 1