$ stack install lens
Run from outside a project, using implicit global config
Using resolver: lts-3.16 from global config file: C:\stack_root\global\stack.yaml
Setting codepage to UTF-8 (65001) to ensure correct output from GHC
lens-4.12.3: configure

--  While building package lens-4.12.3 using:
      C:\apps\HaskellPlatform\7.10.2-a\bin\runhaskell.exe -clear-package-db -global-package-db -package-db=C:\stack_root\snapshots\i386-windows\lts-3.16\7.10.2\pkgdb\ -package-db=C:\stack_root\global\.stack-work\install\i386-windows\lts-3.16\7.10.2\pkgdb\ -hide-all-packages -package=Cabal-1.22.4.0 -package-id=GLURaw-1.5.0.1-6612b3d5093d6d04f58ab6ad765cc47e -package-id=GLUT-2.7.0.1-ef42d0dbdd1965f4656cec71e8529547 -package-id=HTTP-4000.2.20-4f619eec5d5ea08ac4b0487418d200ee -package-id=HUnit-1.2.5.2-b75eb35550f2f3273df533b219637cd7 -package-id=ObjectName-1.1.0.0-37fef604f1527855c430082957754b2f -package-id=OpenGL-2.12.0.1-bba74d0fd2ba1128d0cca35dac842a46 -package-id=OpenGLRaw-2.5.1.0-818f21d7048e6f5dac21026543dc8ac3 -package-id=QuickCheck-2.8.1-31cf74b963d303c08799a9243eafb6f8 -package-id=StateVar-1.1.0.0-96cb1a65bee25dae305a26bb1ebe6ade -package-id=Win32-2.3.1.0-0717dc053eabe89fdd28817a5eef792d -package-id=array-0.5.1.0-eb3ca0b82c3d51a49f55877242086b28 -package-id=async-2.0.2-a31a7347f556c575a03e690b34e55c2b -package-id=attoparsec-0.13.0.1-5a28c509521daaa2d9fb299da370848a -package-id=base-4.8.1.0-4411f755eeebe72a83715ecebc424dd9 -package-id=base-orphans-0.4.4-61f87fbe40b70a96b4f01742198bd89e -package-id=bifunctors-5-39de462995c02aac4b99ef03efe53683 -package-id=bin-package-db-0.0.0.0-c87c9ebefa3add493f40b88366b91be9 -package-id=binary-0.7.5.0-21bfb535c2e89240dc3af41aa36d9b4d -package-id=bytestring-0.10.6.0-3a6a732ee0b8cb400ce04a0f0a3f15e6 -package-id=case-insensitive-1.2.0.4-19d14e9206f0c06c6d26299b5df858f2 -package-id=cgi-3001.2.2.2-c96b57d1c87360ff18f1f8a0671612d6 -package-id=comonad-4.2.7.2-87f3ab6041649b66c42ae7b32566f6f1 -package-id=containers-0.5.6.2-d3868a26f70c1467cc87b86b1c21ae31 -package-id=contravariant-1.3.3-878d26f8a8576405172d791b44b241ec -package-id=deepseq-1.4.1.1-10f84b191b92d4df5a1b62ef8443e7d6 -package-id=directory-1.2.2.0-67861052f6528c2b3ae07ef68f3c2799 -package-id=distributive-0.4.4-c4a451ae71d2df13ae4bd24563e0220f -package-id=exceptions-0.8.0.2-a6d17c5d6b5be63be4fcec073a4e1b78 -package-id=fgl-5.5.2.1-1864483a575709e5ef99f5d66180b6c1 -package-id=filepath-1.4.0.0-ae307811bafd730695e1b4e0d36c99da -package-id=free-4.12.1-60b8830ce517f0cac0187c2eb6d70af9 -package-id=ghc-prim-0.4.0.0-85e834af445e5f9a2d8493a30508f0a2 -package-id=hashable-1.2.3.3-5df1f116b1107918ada93396c40c0fc5 -package-id=haskeline-0.7.2.1-d4343feaf006805df35fcf31a8826e52 -package-id=haskell-src-1.0.2.0-c7ce237fa620ef4eed527caea099b73e -package-id=hoopl-3.10.0.2-6990d8bb63e5e7ba3c2beecba4cb86c3 -package-id=hpc-0.6.0.2-64f1e55905756b8ad7a33e8dbad2da5c -package-id=hscolour-1.23-999d060c13558cc6060c69c64b6a2f9e -package-id=html-1.0.1.2-52f05cc036db454746dd81c8dddf29f4 -package-id=integer-gmp-1.0.0.0-bf42c470d1a99383609c2d63038c6d96 -package-id=kan-extensions-4.2.3-2a72d6ab05a96d5f17ac1062a3f6c83e -package-id=mtl-2.2.1-7e095316349427eca3e1f7c8c93a28f0 -package-id=multipart-0.1.2-793fef9c594fba720381d4087164f4e2 -package-id=network-2.6.2.1-35fc2829c3a985fa775bf9fbc3ecf4cc -package-id=network-uri-2.6.0.3-5c47c4ab890610959206a841c777fc79 -package-id=old-locale-1.0.0.7-3588c6880f1cb77ccff98e204e99a556 -package-id=old-time-1.1.0.3-26bfb50c15d41d04f8ca7cb7f836b818 -package-id=parallel-3.2.0.6-fdf5bb2fc18f7f0667353108a0af1b4a -package-id=parsec-3.1.9-5bdc4964c8e5634e8cd399992b2bc040 -package-id=pretty-1.1.2.0-72a7570af8c65135ebd7ac958a4a1812 -package-id=primitive-0.6-d6942db654eb32f8734d0ca14d78c0ba -package-id=process-1.2.3.0-e80848e270871e1a525ad6051db8884a -package-id=profunctors-5.1.1-42b18dd80c190ed1799ed10b0b012055 -package-id=random-1.1-d7947242678fe66ea011f9af3def6123 -package-id=reflection-2-f368ab3d86b64506840faed36bd5d307 -package-id=regex-base-0.93.2-a7f0302f1100e398cd855d499640d790 -package-id=regex-compat-0.95.1-ccd0f67b7a641b74d69b1588fa479453 -package-id=regex-posix-0.95.2-ec9bae64c31424fb9db4f876acd9dc70 -package-id=scientific-0.3.3.8-c3f09a3b3432145cd691992dffb0aaeb -package-id=semigroupoids-5.0.0.4-a10d455a07505110dd48519fb8d0d3ed -package-id=semigroups-0.16.2.2-a010952cbeae49deedf51f0617939a3e -package-id=split-0.2.2-4095422511c0804f7c88e50361af39a6 -package-id=stm-2.4.4-dd28cd8542ab6da473abb12cebda3196 -package-id=syb-0.5.1-2e49af2beee81e7226b33f3dd6f23ae6 -package-id=tagged-0.8.2-282304576b409d49ad1a79e33bfdfce0 -package-id=template-haskell-2.10.0.0-20c59f6e05cad16c3065e9a0b2e7a84d -package-id=text-1.2.1.3-f4392689a3962ce1a96c8c4c44ad30c2 -package-id=tf-random-0.5-424c227bbedd92791f527fefdc4b2f19 -package-id=time-1.5.0.1-802c20236039b7ed50da988195abc16b -package-id=transformers-0.4.2.0-92071d0128abe0876342c7281d6628ae -package-id=transformers-compat-0.4.0.4-3ca5cbcec233c17da785d5f27705643c -package-id=unordered-containers-0.2.5.1-4267bd81ba27c8435c02b4abf8f438a5 -package-id=vector-0.10.12.3-5ac5978388c1d036efeaaa86c0a157d7 -package-id=void-0.7.1-fe42179cb6171fb20105a510d72becb2 -package-id=xhtml-3000.2.1-da217cc339a4f9f70cb1d1cd0f71ab4c -package-id=zlib-0.5.4.2-e4582cf5e149d728efdf10db023b94e3 C:\Users\mcarter\AppData\Local\Temp\stack3308\lens-4.12.3\Setup.lhs --builddir=.stack-work\dist\i386-windows\Cabal-1.22.4.0\ configure --user --package-db=clear --package-db=global --package-db=C:\stack_root\snapshots\i386-windows\lts-3.16\7.10.2\pkgdb\ --libdir=C:\stack_root\snapshots\i386-windows\lts-3.16\7.10.2\lib --bindir=C:\stack_root\snapshots\i386-windows\lts-3.16\7.10.2\bin --datadir=C:\stack_root\snapshots\i386-windows\lts-3.16\7.10.2\share --libexecdir=C:\stack_root\snapshots\i386-windows\lts-3.16\7.10.2\libexec --sysconfdir=C:\stack_root\snapshots\i386-windows\lts-3.16\7.10.2\etc --docdir=C:\stack_root\snapshots\i386-windows\lts-3.16\7.10.2\doc\lens-4.12.3 --htmldir=C:\stack_root\snapshots\i386-windows\lts-3.16\7.10.2\doc\lens-4.12.3 --haddockdir=C:\stack_root\snapshots\i386-windows\lts-3.16\7.10.2\doc\lens-4.12.3 --dependency=array=array-0.5.1.0-eb3ca0b82c3d51a49f55877242086b28 --dependency=base=base-4.8.1.0-4411f755eeebe72a83715ecebc424dd9 --dependency=base-orphans=base-orphans-0.4.4-61f87fbe40b70a96b4f01742198bd89e --dependency=bifunctors=bifunctors-5-39de462995c02aac4b99ef03efe53683 --dependency=bytestring=bytestring-0.10.6.0-3a6a732ee0b8cb400ce04a0f0a3f15e6 --dependency=comonad=comonad-4.2.7.2-87f3ab6041649b66c42ae7b32566f6f1 --dependency=containers=containers-0.5.6.2-d3868a26f70c1467cc87b86b1c21ae31 --dependency=contravariant=contravariant-1.3.3-878d26f8a8576405172d791b44b241ec --dependency=distributive=distributive-0.4.4-c4a451ae71d2df13ae4bd24563e0220f --dependency=exceptions=exceptions-0.8.0.2-a6d17c5d6b5be63be4fcec073a4e1b78 --dependency=filepath=filepath-1.4.0.0-ae307811bafd730695e1b4e0d36c99da --dependency=free=free-4.12.1-60b8830ce517f0cac0187c2eb6d70af9 --dependency=ghc-prim=ghc-prim-0.4.0.0-85e834af445e5f9a2d8493a30508f0a2 --dependency=hashable=hashable-1.2.3.3-5df1f116b1107918ada93396c40c0fc5 --dependency=kan-extensions=kan-extensions-4.2.3-2a72d6ab05a96d5f17ac1062a3f6c83e --dependency=mtl=mtl-2.2.1-7e095316349427eca3e1f7c8c93a28f0 --dependency=parallel=parallel-3.2.0.6-fdf5bb2fc18f7f0667353108a0af1b4a --dependency=profunctors=profunctors-5.1.1-42b18dd80c190ed1799ed10b0b012055 --dependency=reflection=reflection-2-f368ab3d86b64506840faed36bd5d307 --dependency=semigroupoids=semigroupoids-5.0.0.4-a10d455a07505110dd48519fb8d0d3ed --dependency=semigroups=semigroups-0.16.2.2-a010952cbeae49deedf51f0617939a3e --dependency=tagged=tagged-0.8.2-282304576b409d49ad1a79e33bfdfce0 --dependency=template-haskell=template-haskell-2.10.0.0-20c59f6e05cad16c3065e9a0b2e7a84d --dependency=text=text-1.2.1.3-f4392689a3962ce1a96c8c4c44ad30c2 --dependency=transformers=transformers-0.4.2.0-92071d0128abe0876342c7281d6628ae --dependency=transformers-compat=transformers-compat-0.4.0.4-3ca5cbcec233c17da785d5f27705643c --dependency=unordered-containers=unordered-containers-0.2.5.1-4267bd81ba27c8435c02b4abf8f438a5 --dependency=vector=vector-0.10.12.3-5ac5978388c1d036efeaaa86c0a157d7 --dependency=void=void-0.7.1-fe42179cb6171fb20105a510d72becb2
    Process exited with code: ExitFailure 1
    Logs have been written to: C:\stack_root\global\.stack-work\logs\lens-4.12.3.log

    GHC runtime linker: fatal error: I found a duplicate definition for symbol
       _hsprimitive_memcpy
    whilst processing object file
       C:\apps\HaskellPlatform\7.10.2-a\lib\extralibs\primitive-0.6\HSprimitive-0.6-3d4UsQu7pJCEtlsxN3gLjk.o
    This could be caused by:
       * Loading two different object files which export the same symbol
       * Specifying the same object file twice on the GHCi command line
       * An incorrect `package.conf' entry, causing some object to be
         loaded twice.
    ghc: panic! (the 'impossible' happened)
      (GHC version 7.10.2 for i386-unknown-mingw32):
        loadObj "C:\\apps\\HaskellPlatform\\7.10.2-a\\lib\\extralibs\\primitive-0.6\\HSprimitive-0.6-3d4UsQu7pJCEtlsxN3gLjk.o": failed

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