Resolving dependencies... Configuring multirec-0.7.7... Building multirec-0.7.7... Installed multirec-0.7.7 Downloading TrieMap-0.5.2... Configuring TrieMap-0.5.2... Building TrieMap-0.5.2... Failed to install TrieMap-0.5.2 Build log ( /home/builder/.cabal/logs/TrieMap-0.5.2.log ): cabal: Entering directory '/tmp/cabal-tmp-18518/TrieMap-0.5.2' Configuring TrieMap-0.5.2... Building TrieMap-0.5.2... Preprocessing library TrieMap-0.5.2... [ 1 of 49] Compiling Data.TrieMap.Sized ( Data/TrieMap/Sized.hs, dist/build/Data/TrieMap/Sized.o ) [ 2 of 49] Compiling Data.TrieMap.Rep ( Data/TrieMap/Rep.hs, dist/build/Data/TrieMap/Rep.o ) Data/TrieMap/Rep.hs:9:1: warning: [-Wtabs] Tab character found here, and in 11 further locations. Please use spaces instead. Data/TrieMap/Rep.hs:24:9: warning: [-Winline-rule-shadowing] Rule "toRep/fromRep" may never fire because rule "Class op fromRep" for ‘fromRep’ might fire first Probable fix: add phase [n] or [~n] to the competing rule [ 3 of 49] Compiling Data.TrieMap.Rep.TH ( Data/TrieMap/Rep/TH.hs, dist/build/Data/TrieMap/Rep/TH.o ) Data/TrieMap/Rep/TH.hs:33:13: error: • The constructor ‘InstanceD’ should have 4 arguments, but has been given 3 • In the pattern: InstanceD cxt (reprt `AppT` f) _ In the pattern: InstanceD cxt (reprt `AppT` f) _ : _ In a stmt of a 'do' block: iT@(InstanceD cxt (reprt `AppT` f) _ : _) <- decs cabal: Leaving directory '/tmp/cabal-tmp-18518/TrieMap-0.5.2' cabal: Error: some packages failed to install: TrieMap-0.5.2 failed during the building phase. The exception was: ExitFailure 1