(I'm currently using Cabal 1.18.) Working with sandboxes and multiple cabal packages (via --add-source and a super-package which requires all the others), I've found that the Showing last 10 lines of the build log feature is less useful than one would hope for. When restructuring code across multiple packages there's a lot of potential for huge error messages, *and* furthermore the most interesting lines in the build log are actually towards the *start* og the build log since that's where the *first* error shows up -- given the nature of compilers you generally always want to fix the first-occuring error first since that may fix subsequent errors. So, here's a little feature request: Couldn't we just have cabal install spit out the full build log in case a build fails? Is there any real disadvantage that I'm not seeing?