these 3 derivations will be built:
  /nix/store/ch14pc24qvy1xhj8bpj8fk5adafrl86x-libffi-3.3.drv
  /nix/store/gkddfq7l1lh5m00g4k9i0vgr2iwly0ma-Hopper-v4-5.5.3-Linux-demo.pkg.tar.xz.drv
  /nix/store/xx8zawsvpj31dy7ngl2n7kr054s9dn99-hopper-5.5.3.drv
error: Cannot build '/nix/store/1p0y9ymli3crbjh6ncfc8faa478g55lx-Hopper-v4-5.5.3-Linux-demo.pkg.tar.xz.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/dzh7ha2lzv0yxza8lhfc8b75kxm21zbq-Hopper-v4-5.5.3-Linux-demo.pkg.tar.xz
       Last 12 log lines:
       >
       > trying https://d2ap6ypl1xbe4k.cloudfront.net/Hopper-v4-5.5.3-Linux-demo.pkg.tar.xz
       >   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
       >                                  Dload  Upload   Total   Spent    Left  Speed
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: d2ap6ypl1xbe4k.cloudfront.net
       > Warning: Problem : timeout. Will retry in 1 seconds. 3 retries left.
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: d2ap6ypl1xbe4k.cloudfront.net
       > Warning: Problem : timeout. Will retry in 2 seconds. 2 retries left.
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: d2ap6ypl1xbe4k.cloudfront.net
       > Warning: Problem : timeout. Will retry in 4 seconds. 1 retries left.
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: d2ap6ypl1xbe4k.cloudfront.net
       > error: cannot download Hopper-v4-5.5.3-Linux-demo.pkg.tar.xz from any mirror
       For full logs, run:
         nix log /nix/store/1p0y9ymli3crbjh6ncfc8faa478g55lx-Hopper-v4-5.5.3-Linux-demo.pkg.tar.xz.drv
error: build of resolved derivation '/nix/store/1p0y9ymli3crbjh6ncfc8faa478g55lx-Hopper-v4-5.5.3-Linux-demo.pkg.tar.xz.drv' failed
error: timed out after 1200 seconds
error: Cannot build '/nix/store/xx8zawsvpj31dy7ngl2n7kr054s9dn99-hopper-5.5.3.drv'.
       Reason: 2 dependencies failed.
       Output paths:
         /nix/store/9xabnpqcs30vvjc5d5w3mqja2f6310mf-hopper-5.5.3