these 2 derivations will be built:
  /nix/store/3g2bc22mgk02hhhci1ddm56kzrqky3w5-Handy_0.9.4_amd64.deb.drv
  /nix/store/g45dyqhvlprapw5wp8hhw3nl3jkaddv1-handy-0.9.4.drv
building '/nix/store/mk756kk0hkhid9a9zv5jf7bjvaclacny-Handy_0.9.4_amd64.deb.drv'
Handy_0.9.4_amd64.deb> structuredAttrs is enabled
Handy_0.9.4_amd64.deb> 
Handy_0.9.4_amd64.deb> trying https://github.com/cjpais/Handy/releases/download/v0.9.4/Handy_0.9.4_amd64.deb
Handy_0.9.4_amd64.deb>   % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
Handy_0.9.4_amd64.deb>                                  Dload  Upload  Total   Spent   Left   Speed
Handy_0.9.4_amd64.deb>   0      0   0      0   0      0      0      0                              0
Handy_0.9.4_amd64.deb> 100 46.57M 100 46.57M   0      0 63.86M      0                              0
building '/nix/store/g45dyqhvlprapw5wp8hhw3nl3jkaddv1-handy-0.9.4.drv'
handy-0.9.4> Running phase: unpackPhase
handy-0.9.4> Running phase: patchPhase
handy-0.9.4> Running phase: updateAutotoolsGnuConfigScriptsPhase
handy-0.9.4> Running phase: configurePhase
handy-0.9.4> no configure script, doing nothing
handy-0.9.4> Running phase: buildPhase
handy-0.9.4> no Makefile or custom buildPhase, doing nothing
handy-0.9.4> Running phase: glibPreInstallPhase
handy-0.9.4> Running phase: installPhase
handy-0.9.4> cp: missing destination file operand after '/nix/store/3mgbs0ijz41wn5y1flacrnhy54h5jxy7-handy-0.9.4/lib/handy/'
handy-0.9.4> Try 'cp --help' for more information.
error: Cannot build '/nix/store/g45dyqhvlprapw5wp8hhw3nl3jkaddv1-handy-0.9.4.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/3mgbs0ijz41wn5y1flacrnhy54h5jxy7-handy-0.9.4
       Last 11 log lines:
       > Running phase: unpackPhase
       > Running phase: patchPhase
       > Running phase: updateAutotoolsGnuConfigScriptsPhase
       > Running phase: configurePhase
       > no configure script, doing nothing
       > Running phase: buildPhase
       > no Makefile or custom buildPhase, doing nothing
       > Running phase: glibPreInstallPhase
       > Running phase: installPhase
       > cp: missing destination file operand after '/nix/store/3mgbs0ijz41wn5y1flacrnhy54h5jxy7-handy-0.9.4/lib/handy/'
       > Try 'cp --help' for more information.
       For full logs, run:
         nix log /nix/store/g45dyqhvlprapw5wp8hhw3nl3jkaddv1-handy-0.9.4.drv