this derivation will be built:
  /nix/store/l9j1d64b4r5pq0xpmahbnnallg92z2m3-cups-toshiba-estudio-7.89.drv
building '/nix/store/l9j1d64b4r5pq0xpmahbnnallg92z2m3-cups-toshiba-estudio-7.89.drv'
cups-toshiba-estudio-7.89> unpacking sources
cups-toshiba-estudio-7.89> unpacking source archive /nix/store/747jrz8fwlrqcn583b5jzmw20945p6qh-TOSHIBA_ColorMFP_CUPS.tar
cups-toshiba-estudio-7.89> tar: Removing leading `/' from member names
cups-toshiba-estudio-7.89> source root is usr
cups-toshiba-estudio-7.89> setting SOURCE_DATE_EPOCH to timestamp 1502150982 of file usr/share/cups/model/Toshiba/TOSHIBA_ColorMFP_CUPS.gz
cups-toshiba-estudio-7.89> patching sources
cups-toshiba-estudio-7.89> patching script interpreter paths in lib/
cups-toshiba-estudio-7.89> lib/cups/filter/est6550_Authentication: interpreter directive changed from "#!/usr/bin/perl -w" to "/nix/store/n48i43wkly6kfhxz4ypcxbsv2pr7ggzh-perl-5.36.0/bin/perl -w"
cups-toshiba-estudio-7.89> configuring
cups-toshiba-estudio-7.89> no configure script, doing nothing
cups-toshiba-estudio-7.89> building
cups-toshiba-estudio-7.89> no Makefile, doing nothing
cups-toshiba-estudio-7.89> installing
cups-toshiba-estudio-7.89> post-installation fixup
cups-toshiba-estudio-7.89> shrinking RPATHs of ELF executables and libraries in /nix/store/czc5r21nywdm5b3ah8057n5bgz35d1kj-cups-toshiba-estudio-7.89
cups-toshiba-estudio-7.89> strip is /nix/store/wn31i3dzwahz6ccws8bs1nwyqrpgsvj7-gcc-wrapper-11.3.0/bin/strip
cups-toshiba-estudio-7.89> stripping (with command strip and flags -S) in  /nix/store/czc5r21nywdm5b3ah8057n5bgz35d1kj-cups-toshiba-estudio-7.89/lib
cups-toshiba-estudio-7.89> patching script interpreter paths in /nix/store/czc5r21nywdm5b3ah8057n5bgz35d1kj-cups-toshiba-estudio-7.89
cups-toshiba-estudio-7.89> checking for references to /build/ in /nix/store/czc5r21nywdm5b3ah8057n5bgz35d1kj-cups-toshiba-estudio-7.89...

upload niks3: ok