#13255: aws package fails to build with master -------------------------------------+------------------------------------- Reporter: bgamari | Owner: Type: bug | Status: new Priority: highest | Milestone: 8.2.1 Component: Compiler | Version: 8.0.1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: Compile-time Unknown/Multiple | crash or panic Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- The `aws` package from Hackage fails to build with `master`, {{{ [22 of 76] Compiling Aws.DynamoDb.Core ( Aws/DynamoDb/Core.hs, /home/ben/code/mediawiki-annotate/dist- newstyle/build/x86_64-linux/ghc-8.1.20170209/aws-0.14.1/build/Aws/DynamoDb/Core.p_o ) ghc: panic! (the 'impossible' happened) (GHC version 8.1.20170209 for x86_64-unknown-linux): completeCall $wloop_length_s18Cv Stop[BoringCtxt] Int# -> Int# -> Int Call stack: CallStack (from HasCallStack): prettyCurrentCallStack, called at compiler/utils/Outputable.hs:1188:58 in ghc:Outputable callStackDoc, called at compiler/utils/Outputable.hs:1192:37 in ghc:Outputable pprPanic, called at compiler/simplCore/Simplify.hs:1598:9 in ghc:Simplify Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13255 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler