GHC阴谋集团哈姆雷特失败，出现一个模糊的错误

cabal install hamlet

$ cabal install hamlet                       Resolving dependencies...
Configuring hamlet-0.8.2...
Preprocessing library hamlet-0.8.2...
Building hamlet-0.8.2...
[ 1 of 14] Compiling Text.MkSizeType  ( Text/MkSizeType.hs, dist/build/Text/MkSizeType.o )
[ 2 of 14] Compiling Text.Shakespeare ( Text/Shakespeare.hs, dist/build/Text/Shakespeare.o )
[ 3 of 14] Compiling Text.Hamlet.Parse ( Text/Hamlet/Parse.hs, dist/build/Text/Hamlet/Parse.o )

Text/Hamlet/Parse.hs:113:13:
    Warning: A do-notation statement discarded a result of type String.
         Suppress this warning by saying \"_ <- ($) try string \"!--\"\",
         or by using the flag -fno-warn-unused-do-bind
[ 4 of 14] Compiling Text.Hamlet.Quasi ( Text/Hamlet/Quasi.hs, dist/build/Text/Hamlet/Quasi.o )
[ 5 of 14] Compiling Text.Css         ( Text/Css.hs, dist/build/Text/Css.o )
[ 6 of 14] Compiling Text.Cassius     ( Text/Cassius.hs, dist/build/Text/Cassius.o )
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Loading package array-0.3.0.2 ... linking ... done.
Loading package containers-0.4.0.0 ... linking ... done.
Loading package pretty-1.0.1.2 ... linking ... done.
Loading package template-haskell ... linking ... done.
Loading package filepath-1.2.0.0 ... linking ... done.
Loading package old-locale-1.0.0.2 ... linking ... done.
Loading package old-time-1.0.0.6 ... linking ... done.
Loading package unix-2.4.2.0 ... linking ... done.
Loading package directory-1.1.0.0 ... linking ... done.
Loading package process-1.0.1.5 ... linking ... done.
Loading package bytestring-0.9.1.10 ... linking ... done.
Loading package transformers-0.2.2.0 ... linking ... done.
Loading package mtl-2.0.1.0 ... linking ... done.
Loading package parsec-3.1.1 ... linking ... done.
Loading package failure-0.1.0.1 ... linking ... done.
Loading package deepseq-1.1.0.2 ... linking ... done.
Loading package text-0.11.0.8 ... linking ... done.
Loading package blaze-builder-0.3.0.1 ... linking ... done.
Loading package blaze-html-0.4.1.1 ... linking ... done.
Loading package ffi-1.0 ... linking ... done.
ghc: mmap 36864 bytes at (nil): Operation not permitted
ghc: Try specifying an address with +RTS -xm<addr> -RTS
cabal: Error: some packages failed to install:
hamlet-0.8.2 failed during the building phase. The exception was:
ExitFailure 1