Package ‘audacity-2.2.2’ in /private/var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/builder/lnl7-mac/pkgs/applications/audio/audacity/default.nix:60 is not supported on ‘x86_64-darwin’, refusing to evaluate.

a) For `nixos-rebuild` you can set
  { nixpkgs.config.allowBroken = true; }
in configuration.nix to override this.

b) For `nix-env`, `nix-build`, `nix-shell` or any other Nix command you can add
  { allowBroken = true; }
to ~/.config/nixpkgs/config.nix.

glibPreFixupPhase
post-installation fixup
shrinking RPATHs of ELF executables and libraries in /nix/store/hwpxlv5f9bhifsxkza6dimqic56hsb13-audacity-2.2.2
shrinking /nix/store/hwpxlv5f9bhifsxkza6dimqic56hsb13-audacity-2.2.2/bin/audacity
gzipping man pages under /nix/store/hwpxlv5f9bhifsxkza6dimqic56hsb13-audacity-2.2.2/share/man/
strip is /nix/store/b0zlxla7dmy1iwc3g459rjznx59797xy-binutils-2.28.1/bin/strip
stripping (with command strip and flags -S) in /nix/store/hwpxlv5f9bhifsxkza6dimqic56hsb13-audacity-2.2.2/bin 
patching script interpreter paths in /nix/store/hwpxlv5f9bhifsxkza6dimqic56hsb13-audacity-2.2.2
checking for references to /tmp/nix-build-audacity-2.2.2.drv-0 in /nix/store/hwpxlv5f9bhifsxkza6dimqic56hsb13-audacity-2.2.2...
/nix/store/hwpxlv5f9bhifsxkza6dimqic56hsb13-audacity-2.2.2

../JavaScriptCore/wtf/PassRefPtr.h:59:13:   required from 'void WTF::derefIfNotNull(T*) [with T = WebCore::Frame]'
../JavaScriptCore/wtf/RefPtr.h:58:49:   required from 'WTF::RefPtr<T>::~RefPtr() [with T = WebCore::Frame]'
page/FrameTree.h:37:29:   required from here
../JavaScriptCore/wtf/RefCounted.h:141:13: warning: deleting object of polymorphic class type 'WebCore::Frame' which has non-virtual destructor might cause undefined behavior [-Wdelete-non-virtual-dtor]
             delete static_cast<T*>(this);
             ^~~~~~
building of '/nix/store/2cppdmviczszzy7z22c3rsmhwkydfdky-qt-4.8.7.drv' timed out after 3200 seconds
cannot build derivation '/nix/store/s3z2n2rr867ca65szxabk00yphy8qsbl-suil-qt4-0.10.0.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/lwql416m2qgq5advncvpn8xzrflm140h-audacity-2.2.2.drv': 1 dependencies couldn't be built
�[31;1merror:�[0m build of '/nix/store/lwql416m2qgq5advncvpn8xzrflm140h-audacity-2.2.2.drv' failed