[GHC] #15411: urk! lookup local fingerprint

[GHC]

#15411: urk! lookup local fingerprint
-------------------------------------+-------------------------------------
           Reporter:  admock         |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:  8.6.1
          Component:  Compiler       |           Version:  8.4.3
           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:
-------------------------------------+-------------------------------------
 When building GHC 8.6.0-alpha2 the build fails with the following error.

 {{{
 [ghc-8.6.0.20180714] alan% make
 ===--- building phase 0
 make --no-print-directory -f ghc.mk phase=0 phase_0_builds
 make[1]: Nothing to be done for 'phase_0_builds'.
 ===--- building phase 1
 make --no-print-directory -f ghc.mk phase=1 phase_1_builds
 make[1]: Nothing to be done for 'phase_1_builds'.
 ===--- building final phase
 make --no-print-directory -f ghc.mk phase=final all
 "inplace/bin/ghc-stage2" -hisuf dyn_hi -osuf  dyn_o -hcsuf dyn_hc -fPIC
 -dynamic  -H32m -O -Wall      -hide-all-packages -i -iutils/haddock/driver
 -iutils/haddock/haddock-api/src -iutils/haddock/haddock-library/src
 -iutils/haddock/dist/build -Iutils/haddock/dist/build
 -iutils/haddock/dist/build/haddock/autogen
 -Iutils/haddock/dist/build/haddock/autogen    -optP-DIN_GHC_TREE -optP-
 include -optPutils/haddock/dist/build/haddock/autogen/cabal_macros.h
 -package-id Cabal-2.3.0.0 -package-id array-0.5.2.0 -package-id
 base-4.12.0.0 -package-id bytestring-0.10.8.2 -package-id
 containers-0.6.0.1 -package-id deepseq-1.4.4.0 -package-id
 directory-1.3.3.0 -package-id filepath-1.4.2 -package-id
 ghc-8.6.0.20180714 -package-id ghc-boot-8.6.0.20180714 -package-id
 parsec-3.1.13.0.0.0.0.0 -package-id text-1.2.3.0 -package-id
 transformers-0.5.5.0 -package-id xhtml-3000.2.2.1 -funbox-strict-fields
 -Wall -fwarn-tabs -O2 -threaded -XHaskell2010  -no-user-package-db
 -rtsopts  -Wno-unused-imports -Wno-deprecations     -Wnoncanonical-monad-
 instances  -odir utils/haddock/dist/build -hidir utils/haddock/dist/build
 -stubdir utils/haddock/dist/build    -c utils/haddock/haddock-
 api/src/Haddock/Backends/Hyperlinker/Types.hs -o
 utils/haddock/dist/build/Haddock/Backends/Hyperlinker/Types.dyn_o
 ghc-stage2: panic! (the 'impossible' happened)
   (GHC version 8.6.0.20180714 for powerpc64-unknown-linux):
         urk! lookup local fingerprint
   $fEqTokenDetails
   [cESf79 :-> (Span, 3bafa1c9fb27c5bcc8d6a0fca267f340)]
   Call stack:
       CallStack (from HasCallStack):
         callStackDoc, called at compiler/utils/Outputable.hs:1164:37 in
 ghc:Outputable
         pprPanic, called at compiler/iface/MkIface.hs:523:37 in
 ghc:MkIface

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

 make[1]: *** [utils/haddock/ghc.mk:20:
 utils/haddock/dist/build/Haddock/Backends/Hyperlinker/Types.dyn_o] Error 1
 make: *** [Makefile:127: all] Error 2
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15411>
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