mac02: building wqad450kzrjh4gcndkm8wan8iqw5ngp3-source.drv
structuredAttrs is enabled

trying https://github.com/yvgude/lean-ctx/archive/refs/tags/v3.12.2.tar.gz
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed

  0      0   0      0   0      0      0      0                              0
  0      0   0      0   0      0      0      0                              0
  0      0   0      0   0      0      0      0                              0

  0      0   0      0   0      0      0      0                              0
100  8.00M   0  8.00M   0      0  6.33M      0           00:01          7.81M
100 14.38M   0 14.38M   0      0  7.11M      0           00:02          7.81M
100 14.38M   0 14.38M   0      0  7.11M      0           00:02          7.81M
100 14.38M   0 14.38M   0      0  7.11M      0           00:02          7.81M
unpacking source archive /nix/var/nix/builds/nix-99536-319380572/download.tar.gz