Not enough cleaning

[Blaisorblade]

Might be due to Cabal, or more likely GHC --make.

I start building stack, and interrupt:

[ 45 of 126] Compiling Stack.Types.Compiler ( src/Stack/Types/Compiler.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Types/Compiler.o )
[ 46 of 126] Compiling Stack.Config.Nix ( src/Stack/Config/Nix.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Config/Nix.o )
[ 47 of 126] Compiling Stack.Types.BuildPlan ( src/Stack/Types/BuildPlan.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Types/BuildPlan.o )
^Cuser interrupt
$

After a few actions, including a git reset --hard (and maybe partial builds?), I go on and start getting the following errors. Cleaning fixes them.

$ stack build
stack-1.4.1: configure (lib + exe)
Configuring stack-1.4.1...
stack-1.4.1: build (lib + exe)
Preprocessing library stack-1.4.1...
[ 50 of 126] Compiling Stack.Types.Resolver[boot] ( src/Stack/Types/Resolver.hs-boot, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Types/Resolver.o-boot )
[ 51 of 126] Compiling Stack.Types.Config[boot] ( src/Stack/Types/Config.hs-boot, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Types/Config.o-boot )
[ 52 of 126] Compiling Stack.Types.Resolver ( src/Stack/Types/Resolver.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Types/Resolver.o )
[ 53 of 126] Compiling Stack.Options.ResolverParser ( src/Stack/Options/ResolverParser.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Options/ResolverParser.o )
[ 57 of 126] Compiling Stack.Types.PackageIndex ( src/Stack/Types/PackageIndex.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Types/PackageIndex.o )
[ 58 of 126] Compiling Stack.Types.Config ( src/Stack/Types/Config.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Types/Config.o )
[ 59 of 126] Compiling Stack.Config.Build ( src/Stack/Config/Build.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Config/Build.o )
[ 60 of 126] Compiling Stack.Config.Docker ( src/Stack/Config/Docker.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Config/Docker.o )
[ 61 of 126] Compiling Stack.Constants  ( src/Stack/Constants.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Constants.o )
[ 62 of 126] Compiling Data.Attoparsec.Interpreter ( src/Data/Attoparsec/Interpreter.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Data/Attoparsec/Interpreter.o )
[ 63 of 126] Compiling Stack.Docker.GlobalDB ( src/Stack/Docker/GlobalDB.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Docker/GlobalDB.o )
[ 64 of 126] Compiling Stack.Exec       ( src/Stack/Exec.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Exec.o )
[ 65 of 126] Compiling Stack.Options.BenchParser ( src/Stack/Options/BenchParser.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Options/BenchParser.o )
[ 66 of 126] Compiling Stack.Options.GhcVariantParser ( src/Stack/Options/GhcVariantParser.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Options/GhcVariantParser.o )
[ 67 of 126] Compiling Stack.Options.HaddockParser ( src/Stack/Options/HaddockParser.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Options/HaddockParser.o )
[ 68 of 126] Compiling Stack.Options.TestParser ( src/Stack/Options/TestParser.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Options/TestParser.o )
[ 69 of 126] Compiling Stack.Types.Internal ( src/Stack/Types/Internal.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Types/Internal.o )
[ 70 of 126] Compiling Stack.Types.StackT ( src/Stack/Types/StackT.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Types/StackT.o )
[ 71 of 126] Compiling Stack.New        ( src/Stack/New.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/New.o )
[ 72 of 126] Compiling Stack.PackageIndex ( src/Stack/PackageIndex.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/PackageIndex.o )

<no location info>: error:
    ghc: panic! (the 'impossible' happened)
  (GHC version 8.0.2 for x86_64-apple-darwin):
	Loading temp shared object failed: dlopen(/var/folders/_7/hlxv4yv95x95vgnn416b4q4m0000gp/T/ghc42275_0/libghc_122.dylib, 5): Symbol not found: _stackzm1zi4zi1zm462qvxPX9OKHnV4PeX8OJ5_StackziTypesziBuildPlan_MiniBuildPlan_con_info
  Referenced from: /var/folders/_7/hlxv4yv95x95vgnn416b4q4m0000gp/T/ghc42275_0/libghc_122.dylib
[ 74 of 126] Compiling Stack.Setup.Installed ( src/Stack/Setup/Installed.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Setup/Installed.o )
  Expected in: flat namespace
[ 75 of 126] Compiling Stack.Types.Package ( src/Stack/Types/Package.hs, .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/Stack/Types/Package.o )
 in /var/folders/_7/hlxv4yv95x95vgnn416b4q4m0000gp/T/ghc42275_0/libghc_122.dylib

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

[Blaisorblade]

Feel free to close all these bugs by having one or more FAQs.

[mgsloan]

Might be good to file a ghc bug, ideally it wouldn't leave things in a bad state when interrupted. Adding an FAQ seems reasonable.

[snoyberg]

Closing in favor of #4559