nix-build output

these derivations will be built:
  /nix/store/lxk22wmjmwf2xadrw7pm37k80m9lcnql-project1-1.0.0.drv
building path(s) ‘/nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0’
setupCompilerEnvironmentPhase
Build with /nix/store/qijwxnz9s8gas6pc6n5qfv976w523xyb-ghc-8.0.2.
unpacking sources
unpacking source archive /nix/store/cp5d14hvbpkhhv6r0yw6a1520nyr326v-project1
source root is project1
patching sources
compileBuildDriverPhase
setupCompileFlags: -package-db=/tmp/nix-build-project1-1.0.0.drv-0/package.conf.d -j12 -threaded
[1 of 1] Compiling Main             ( /nix/store/4mdp8nhyfddh7bllbi7xszz7k9955n79-Setup.hs, /tmp/nix-build-project1-1.0.0.drv-0/Main.o )
Linking Setup ...
configuring
configureFlags: --verbose --prefix=/nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0 --libdir=$prefix/lib/$compiler --libsubdir=$pkgid --with-gcc=gcc --package-db=/tmp/nix-build-project1-1.0.0.drv-0/package.conf.d --ghc-option=-optl=-Wl,-rpath=/nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0/lib/ghc-8.0.2/project1-1.0.0 --ghc-option=-j12 --disable-split-objs --disable-library-profiling --disable-profiling --enable-shared --disable-coverage --enable-library-vanilla --enable-executable-dynamic --enable-tests --ghc-option=-split-sections
Configuring project1-1.0.0...
Dependency base <5: using base-4.9.1.0
Dependency turtle -any: using turtle-1.3.6
Using Cabal-1.24.2.0 compiled by ghc-8.0
Using compiler: ghc-8.0.2
Using install prefix:
/nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0
Binaries installed in:
/nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0/bin
Libraries installed in:
/nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0/lib/ghc-8.0.2/project1-1.0.0
Dynamic libraries installed in:
/nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0/lib/ghc-8.0.2/x86_64-linux-ghc-8.0.2
Private binaries installed in:
/nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0/libexec
Data files installed in:
/nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0/share/x86_64-linux-ghc-8.0.2/project1-1.0.0
Documentation installed in:
/nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0/share/doc/x86_64-linux-ghc-8.0.2/project1-1.0.0
Configuration files installed in:
/nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0/etc
No alex found
Using ar found on system at:
/nix/store/d0qal5k1xwsq73syjk5p95wnw6x6bwfi-binutils-2.28/bin/ar
No c2hs found
No cpphs found
Using gcc version 5.4.0 given by user at:
/nix/store/jc90k1xig8g56w7hax7fnda4x9r0f2y1-gcc-wrapper-5.4.0/bin/gcc
Using ghc version 8.0.2 found on system at:
/nix/store/qijwxnz9s8gas6pc6n5qfv976w523xyb-ghc-8.0.2/bin/ghc
Using ghc-pkg version 8.0.2 found on system at:
/nix/store/qijwxnz9s8gas6pc6n5qfv976w523xyb-ghc-8.0.2/bin/ghc-pkg
No ghcjs found
No ghcjs-pkg found
No greencard found
Using haddock version 2.17.3 found on system at:
/nix/store/qijwxnz9s8gas6pc6n5qfv976w523xyb-ghc-8.0.2/bin/haddock
No happy found
Using haskell-suite found on system at: haskell-suite-dummy-location
Using haskell-suite-pkg found on system at: haskell-suite-pkg-dummy-location
No hmake found
Using hpc version 0.67 found on system at:
/nix/store/qijwxnz9s8gas6pc6n5qfv976w523xyb-ghc-8.0.2/bin/hpc
Using hsc2hs version 0.68.1 found on system at:
/nix/store/qijwxnz9s8gas6pc6n5qfv976w523xyb-ghc-8.0.2/bin/hsc2hs
No hscolour found
No jhc found
Using ld found on system at:
/nix/store/jc90k1xig8g56w7hax7fnda4x9r0f2y1-gcc-wrapper-5.4.0/bin/ld
No lhc found
No lhc-pkg found
No pkg-config found
Using strip version 2.28 found on system at:
/nix/store/d0qal5k1xwsq73syjk5p95wnw6x6bwfi-binutils-2.28/bin/strip
Using tar found on system at:
/nix/store/d1a7p51z5pyqswp4yxfbmn4y9s5dx7hf-gnutar-1.29/bin/tar
No uhc found
building
Building project1-1.0.0...
Preprocessing executable 'project1' for project1-1.0.0...
[1 of 1] Compiling Main             ( Main.hs, dist/build/project1/project1-tmp/Main.dyn_o )
Linking dist/build/project1/project1 ...
running tests
Package has no test suites.
haddockPhase
installing
Installing executable(s) in
/nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0/bin
Warning: The directory
/nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0/bin is not in the
system search path.
post-installation fixup
shrinking RPATHs of ELF executables and libraries in /nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0
shrinking /nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0/bin/project1
stripping (with flags -S) in /nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0/bin 
patching script interpreter paths in /nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0
checking for references to /tmp/nix-build-project1-1.0.0.drv-0 in /nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0...
/nix/store/81gy6a8m1iin193507qyr580i2mj6n77-project1-1.0.0