Resolving dependencies...
Configuring safe-0.3.16...
Configuring Diff-0.3.4...
Building safe-0.3.16...
Building Diff-0.3.4...
Installed Diff-0.3.4
Installed safe-0.3.16
Downloading crdt-9.2...
Configuring crdt-9.2...
Building crdt-9.2...
Failed to install crdt-9.2
Build log ( /home/builder/.cabal/logs/ghc-8.2.2/crdt-9.2-B4yXwjC8pZ8FNFbc0fGH5b.log ):
cabal: Entering directory '/tmp/cabal-tmp-15358/crdt-9.2'
Configuring crdt-9.2...
Preprocessing library for crdt-9.2..
Building library for crdt-9.2..
[ 1 of 21] Compiling CRDT.Cv.GSet     ( lib/CRDT/Cv/GSet.hs, dist/build/CRDT/Cv/GSet.o )
[ 2 of 21] Compiling CRDT.Cv.Max      ( lib/CRDT/Cv/Max.hs, dist/build/CRDT/Cv/Max.o )
[ 3 of 21] Compiling Data.MultiMap    ( lib/Data/MultiMap.hs, dist/build/Data/MultiMap.o )
[ 4 of 21] Compiling Data.Semilattice ( lib/Data/Semilattice.hs, dist/build/Data/Semilattice.o )
[ 5 of 21] Compiling CRDT.Cv.TwoPSet  ( lib/CRDT/Cv/TwoPSet.hs, dist/build/CRDT/Cv/TwoPSet.o )
[ 6 of 21] Compiling CRDT.Cv.GCounter ( lib/CRDT/Cv/GCounter.hs, dist/build/CRDT/Cv/GCounter.o )
[ 7 of 21] Compiling CRDT.Cv.PNCounter ( lib/CRDT/Cv/PNCounter.hs, dist/build/CRDT/Cv/PNCounter.o )
[ 8 of 21] Compiling CRDT.Cv          ( lib/CRDT/Cv.hs, dist/build/CRDT/Cv.o )
[ 9 of 21] Compiling MacAddress       ( lib/MacAddress.hs, dist/build/MacAddress.o )

lib/MacAddress.hs:20:1: error:
    Could not find module ‘Network.Info’
    Use -v to see a list of the files searched for.
   |
20 | import           Network.Info (MAC (MAC), getNetworkInterfaces, mac)
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
cabal: Leaving directory '/tmp/cabal-tmp-15358/crdt-9.2'
cabal: Error: some packages failed to install:
crdt-9.2-B4yXwjC8pZ8FNFbc0fGH5b failed during the building phase. The
exception was:
ExitFailure 1