Create a new version of paste:

miguel@miguel-MacBookPro:~$ nix-env -I nixpkgs=~/Development/Haskell/nix/nixpkgs/ -iA ihaskell-with-packages --cores 4 -f '<nixpkgs>'
replacing old ‘ihaskell-with-packages’
installing ‘ihaskell-with-packages’
these derivations will be built:
  /nix/store/gppala3fdnfpdikpjnaqg2fmwnmsczqz-haskell-hsc3-0.16.drv
  /nix/store/v5wkh56kqad54rnjcqdvp9spamxpamvi-haskell-hsc3-process-0.10.0.drv
  /nix/store/9wx5yp63xnfm3r4h931d06ahplk0wiy2-haskell-hsc3-server-0.10.0.drv
  /nix/store/glnqd7invhrpkj0qhq8skwi55bvw4n8m-haskell-hndef-0.1.0.0.drv
  /nix/store/na9q53bfx82nh8y3gi9lmbp93w0xykb7-haskell-regex-pcre-0.94.4.drv
  /nix/store/chccwdnv3gr54akvwq3cpa00x3rfr264-ghc-7.8.4.drv
  /nix/store/2phpc7dynh2jkp21caafxwpxq9zah06v-ihaskell-with-packages.drv
building path(s) ‘/nix/store/x2gqfayvgllmfqw52a5z4dzydsmygy7g-haskell-hsc3-0.16’
setupCompilerEnvironmentPhase
Building with /nix/store/rnxk1a1bz4rgy1rw4973blbfp9f0ic89-ghc-7.8.4.
unpacking sources
unpacking source archive /nix/store/n7m535gkzjc49plmjcsckri5fvb9sdcz-hsc3
source root is hsc3
patching sources
Running jailbreak-cabal to lift version restrictions on build inputs.
compileBuildDriverPhase
setupCompileFlags: -package-db=/tmp/nix-build-haskell-hsc3-0.16.drv-0/package.conf.d -j4
[1 of 1] Compiling Main             ( Setup.hs, /tmp/nix-build-haskell-hsc3-0.16.drv-0/Main.o )
Linking Setup ...
configuring
configureFlags: --verbose --prefix=/nix/store/x2gqfayvgllmfqw52a5z4dzydsmygy7g-haskell-hsc3-0.16 --libdir=$prefix/lib/$compiler --libsubdir=$pkgid --with-gcc=gcc --package-db=/tmp/nix-build-haskell-hsc3-0.16.drv-0/package.conf.d --ghc-option=-optl=-Wl,-rpath=/nix/store/x2gqfayvgllmfqw52a5z4dzydsmygy7g-haskell-hsc3-0.16/lib/ghc-7.8.4/hsc3-0.16 --enable-split-objs --disable-library-profiling --enable-shared --enable-library-vanilla --enable-executable-dynamic --enable-tests
Configuring hsc3-0.16...
Dependency base -any: using base-4.7.0.2
Dependency binary -any: using binary-0.7.4.0
Dependency bytestring -any: using bytestring-0.10.4.0
Dependency containers -any: using containers-0.5.5.1
Dependency data-default -any: using data-default-0.5.3
Dependency data-ordlist -any: using data-ordlist-0.4.7.0
Dependency directory -any: using directory-1.2.1.0
Dependency filepath -any: using filepath-1.3.0.2
Dependency hashable -any: using hashable-1.2.3.2
Dependency hosc -any: using hosc-0.16
Dependency network -any: using network-2.6.0.2
Dependency process -any: using process-1.2.0.0
Dependency random -any: using random-1.1
Dependency safe -any: using safe-0.3.8
Dependency split -any: using split-0.2.2
Dependency transformers -any: using transformers-0.3.0.0
Setup: The following installed packages are broken because other packages they
depend on are missing. These broken packages must be rebuilt before they can
be used.
package binary-0.7.4.0 is broken due to missing package
array-0.5.0.0-ce080a527b3819e94d851f7f80ca77dd,
base-4.7.0.2-cb23b5265b6e147094c0cd9ac819acb1,
bytestring-0.10.4.0-e82797828c29adab75d6eb4b53384f09,
containers-0.5.5.1-d7910f1cd81272c1f31ca9f71d0f206e
package blaze-builder-0.3.3.4 is broken due to missing package
base-4.7.0.2-cb23b5265b6e147094c0cd9ac819acb1,
bytestring-0.10.4.0-e82797828c29adab75d6eb4b53384f09
package data-binary-ieee754-0.4.4 is broken due to missing package
base-4.7.0.2-cb23b5265b6e147094c0cd9ac819acb1
package data-default-0.5.3 is broken due to missing package
data-default-instances-base-0.0.1-ad8bee5c4e3f166a29f67cbbfc0fe81d,
data-default-instances-containers-0.0.1-4c5bad0b8b2795aba72e60168b285c76,
data-default-instances-dlist-0.0.1-87aaf399959854146a48fc2201d4678b
package data-ordlist-0.4.7.0 is broken due to missing package
base-4.7.0.2-cb23b5265b6e147094c0cd9ac819acb1
package hashable-1.2.3.2 is broken due to missing package
base-4.7.0.2-cb23b5265b6e147094c0cd9ac819acb1,
bytestring-0.10.4.0-e82797828c29adab75d6eb4b53384f09
package hosc-0.16 is broken due to missing package
base-4.7.0.2-cb23b5265b6e147094c0cd9ac819acb1,
bytestring-0.10.4.0-e82797828c29adab75d6eb4b53384f09,
time-1.4.2-192d26f44a2c945780bbb921626c3399
package network-2.6.0.2 is broken due to missing package
base-4.7.0.2-cb23b5265b6e147094c0cd9ac819acb1,
bytestring-0.10.4.0-e82797828c29adab75d6eb4b53384f09,
unix-2.7.0.1-d7de2c9293605f58486b3752d772cdb6
package random-1.1 is broken due to missing package
base-4.7.0.2-cb23b5265b6e147094c0cd9ac819acb1,
time-1.4.2-192d26f44a2c945780bbb921626c3399
package text-1.2.0.4 is broken due to missing package
array-0.5.0.0-ce080a527b3819e94d851f7f80ca77dd,
base-4.7.0.2-cb23b5265b6e147094c0cd9ac819acb1,
bytestring-0.10.4.0-e82797828c29adab75d6eb4b53384f09,
deepseq-1.3.0.2-0ddc77716bd2515426e1ba39f6788a4f
builder for ‘/nix/store/gppala3fdnfpdikpjnaqg2fmwnmsczqz-haskell-hsc3-0.16.drv’ failed with exit code 1
cannot build derivation ‘/nix/store/chccwdnv3gr54akvwq3cpa00x3rfr264-ghc-7.8.4.drv’: 1 dependencies couldn't be built
cannot build derivation ‘/nix/store/2phpc7dynh2jkp21caafxwpxq9zah06v-ihaskell-with-packages.drv’: 1 dependencies couldn't be built
error: build of ‘/nix/store/2phpc7dynh2jkp21caafxwpxq9zah06v-ihaskell-with-packages.drv’ failed