anchor.diff:    ##       from the context: a
     constraints = super.constraints_0_10;
   
  -  hspec-core = overrideCabal super.hspec-core_2_4_7 (drv: {
  +  hspec-core = overrideCabal super.hspec-core_2_4_8 (drv: {
       ## Needs bump to a versioned attribute
       ## 
       ##     • No instance for (Semigroup Summary)
  
positive.code:   ## breaks hspec:
    ## Setup: Encountered missing dependencies:
    ## hspec-discover ==2.4.7
    hspec-discover = super.hspec-discover_2_4_7;
  
    ## Needs bump to a versioned attribute
    ## 
  
negative.code:   ##       callStackDoc, called at compiler/utils/Outputable.hs:1150:37 in ghc:Outputable
    ##       pprPanic, called at utils/haddock/haddock-api/src/Haddock/Interface/Create.hs:1013:16 in main:Haddock.Interface.Create
    ## Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
    hspec = dontHaddock (dontCheck super.hspec_2_4_8);        # test suite causes an infinite loop
  
    ## Setup: Encountered missing dependencies:
    ## QuickCheck >=2.3 && <2.10
  