Resolving dependencies... Build profile: -w ghc-9.2.4 -O0 In order, the following will be built (use -v for more details): - doctest-0.21.0 (lib:doctest) (requires build) - tree-traversals-0.1.2.0 (first run) Starting doctest-0.21.0 (all, legacy fallback) Building doctest-0.21.0 (all, legacy fallback) Installing doctest-0.21.0 (all, legacy fallback) Completed doctest-0.21.0 (all, legacy fallback) Configuring tree-traversals-0.1.2.0... Preprocessing test suite 'doctests' for tree-traversals-0.1.2.0.. Building test suite 'doctests' for tree-traversals-0.1.2.0.. [1 of 1] Compiling Main ( doctests.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.2.4/tree-traversals-0.1.2.0/noopt/build/doctests/doctests-tmp/Main.o ) Linking /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.2.4/tree-traversals-0.1.2.0/noopt/build/doctests/doctests ... Preprocessing library for tree-traversals-0.1.2.0.. Building library for tree-traversals-0.1.2.0.. [1 of 4] Compiling Control.Applicative.Phases ( src/Control/Applicative/Phases.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.2.4/tree-traversals-0.1.2.0/noopt/build/Control/Applicative/Phases.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.2.4/tree-traversals-0.1.2.0/noopt/build/Control/Applicative/Phases.dyn_o ) [2 of 4] Compiling Data.BinaryTree ( src/Data/BinaryTree.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.2.4/tree-traversals-0.1.2.0/noopt/build/Data/BinaryTree.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.2.4/tree-traversals-0.1.2.0/noopt/build/Data/BinaryTree.dyn_o ) [3 of 4] Compiling Data.Monoid.TreeDiagram ( src/Data/Monoid/TreeDiagram.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.2.4/tree-traversals-0.1.2.0/noopt/build/Data/Monoid/TreeDiagram.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.2.4/tree-traversals-0.1.2.0/noopt/build/Data/Monoid/TreeDiagram.dyn_o ) [4 of 4] Compiling Data.Traversable.TreeLike ( src/Data/Traversable/TreeLike.hs, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.2.4/tree-traversals-0.1.2.0/noopt/build/Data/Traversable/TreeLike.o, /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.2.4/tree-traversals-0.1.2.0/noopt/build/Data/Traversable/TreeLike.dyn_o ) Running 1 test suites... Test suite doctests: RUNNING... Test suite doctests: FAIL Test suite logged to: /home/builder/builder-dir/build-cache/tmp-install/reports/tree-traversals-0.1.2.0.test Writing: hpc_index.html Writing: hpc_index_fun.html Writing: hpc_index_alt.html Writing: hpc_index_exp.html Test coverage report written to /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.2.4/tree-traversals-0.1.2.0/noopt/hpc/vanilla/html/doctests/hpc_index.html 0 of 1 test suites (0 of 1 test cases) passed. Writing: hpc_index.html Writing: hpc_index_fun.html Writing: hpc_index_alt.html Writing: hpc_index_exp.html Package coverage report written to /home/builder/builder-dir/build-cache/tmp-install/dist-newstyle/build/x86_64-linux/ghc-9.2.4/tree-traversals-0.1.2.0/noopt/hpc/vanilla/html/tree-traversals-0.1.2.0/hpc_index.html Error: cabal: Tests failed for tree-traversals-0.1.2.0.