attached to the build already running on this worker
build01: building 7pfnyh5i052z10zgrr5q718wf0bd32gm-fonts.conf.drv
/nix/store/fy3pyynjfpfzh9blsg4kx1kb1riwakai-fontconfig-2.17.1/etc/fonts/fonts.conf:2: warning: failed to load external entity "urn:fontconfig:fonts.dtd"
<!DOCTYPE fontconfig SYSTEM "urn:fontconfig:fonts.dtd">
                                                       ^