Running phase: unpackPhase
unpacking source archive /nix/store/b1sj2x8dnrjywyh8isz08akis8vd0gy0-Firefox-20155.0.1.dmg
source root is .
setting SOURCE_DATE_EPOCH to timestamp 1788842177 of file "./env-vars"
warning: file "./env-vars" may be generated; SOURCE_DATE_EPOCH may be non-deterministic
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
Running phase: gappsWrapperArgsHook
Running phase: dropIconThemeCache