these 13 derivations will be built:
  /nix/store/8c9bc07cp46v53drk06nq8k2k2qc5wvc-etc-os-release.drv
  /nix/store/4045qrrwlr4gfis9v4gxk2cbwhqhrk3b-shutdown-ramfs-contents.json.drv
  /nix/store/m0a0r54h9yh7dwdbwmdsxidfy76hv5qm-unit-generate-shutdown-ramfs.service.drv
  /nix/store/lnsz2v6szxjdabwifplhk5dm0j59k41q-system-units.drv
  /nix/store/rzimrkwk9cba3g2x9v694k3954m9mprg-issue.drv
  /nix/store/1rm1q5sv2xdajlql35dhcjqjlcrg7cmc-etc.drv
  /nix/store/dfcy0cjxsw83rhy3gnhib55wfdqq67hp-boot.json.drv
  /nix/store/xqfqvnlrcfyw6np2xj4lh8c22iv7apfh-activate.drv
  /nix/store/k36g8bl62qjda854rj2wnrx9iznmbbaw-nixos-system-trynixos-26.11.20260920.44a9189.drv
  /nix/store/m42p0zxapi7vphi81xf447p3rfsc3gha-closure-info.drv
  /nix/store/4d4qn42c9mq39l8kln9kngpdzcfnwhb0-trynixos-store.squashfs.drv
  /nix/store/vp0ifd7r7jj4zc0jiqrp7c66djap31jc-isolinux.cfg.drv
  /nix/store/rv0si3hn2w42pfvzxp5zvdf1gdjl1hkj-trynixos.iso.drv
building '/nix/store/dfcy0cjxsw83rhy3gnhib55wfdqq67hp-boot.json.drv'
building '/nix/store/8c9bc07cp46v53drk06nq8k2k2qc5wvc-etc-os-release.drv'
building '/nix/store/rzimrkwk9cba3g2x9v694k3954m9mprg-issue.drv'
boot.json> structuredAttrs is enabled
etc-os-release> structuredAttrs is enabled
issue> structuredAttrs is enabled
building '/nix/store/4045qrrwlr4gfis9v4gxk2cbwhqhrk3b-shutdown-ramfs-contents.json.drv'
shutdown-ramfs-contents.json> structuredAttrs is enabled
building '/nix/store/m0a0r54h9yh7dwdbwmdsxidfy76hv5qm-unit-generate-shutdown-ramfs.service.drv'
unit-generate-shutdown-ramfs.service> structuredAttrs is enabled
building '/nix/store/lnsz2v6szxjdabwifplhk5dm0j59k41q-system-units.drv'
building '/nix/store/1rm1q5sv2xdajlql35dhcjqjlcrg7cmc-etc.drv'
building '/nix/store/xqfqvnlrcfyw6np2xj4lh8c22iv7apfh-activate.drv'
activate> structuredAttrs is enabled
building '/nix/store/k36g8bl62qjda854rj2wnrx9iznmbbaw-nixos-system-trynixos-26.11.20260920.44a9189.drv'
nixos-system-trynixos-26.11.20260920.44a9189> structuredAttrs is enabled
building '/nix/store/m42p0zxapi7vphi81xf447p3rfsc3gha-closure-info.drv'
building '/nix/store/vp0ifd7r7jj4zc0jiqrp7c66djap31jc-isolinux.cfg.drv'
closure-info> structuredAttrs is enabled
isolinux.cfg> structuredAttrs is enabled
building '/nix/store/4d4qn42c9mq39l8kln9kngpdzcfnwhb0-trynixos-store.squashfs.drv'
trynixos-store.squashfs> Parallel mksquashfs: Using 32 processors
trynixos-store.squashfs> Creating 4.0 filesystem on /nix/store/hmmadv4bw3mx61pmd14s9i39k3kx6b21-trynixos-store.squashfs, block size 1048576.
trynixos-store.squashfs> 
trynixos-store.squashfs> 
trynixos-store.squashfs> Exportable Squashfs 4.0 filesystem, zstd compressed, data block size 1048576
trynixos-store.squashfs> 	compressed data, compressed metadata, compressed fragments,
trynixos-store.squashfs> 	compressed xattrs, compressed ids
trynixos-store.squashfs> 	duplicates are removed
trynixos-store.squashfs> Filesystem size 50224.76 Kbytes (49.05 Mbytes)
trynixos-store.squashfs> 	27.89% of uncompressed filesystem size (180079.32 Kbytes)
trynixos-store.squashfs> Inode table size 111147 bytes (108.54 Kbytes)
trynixos-store.squashfs> 	20.07% of uncompressed inode table size (553872 bytes)
trynixos-store.squashfs> Directory table size 116266 bytes (113.54 Kbytes)
trynixos-store.squashfs> 	47.75% of uncompressed directory table size (243514 bytes)
trynixos-store.squashfs> Number of duplicate files found 642
trynixos-store.squashfs> Number of inodes 12180
trynixos-store.squashfs> Number of files 7112
trynixos-store.squashfs> Number of fragments 112
trynixos-store.squashfs> Number of symbolic links 3837
trynixos-store.squashfs> Number of device nodes 0
trynixos-store.squashfs> Number of fifo nodes 0
trynixos-store.squashfs> Number of socket nodes 0
trynixos-store.squashfs> Number of directories 1231
trynixos-store.squashfs> Number of hard-links 0
trynixos-store.squashfs> Number of ids (unique uids + gids) 1
trynixos-store.squashfs> Number of uids 1
trynixos-store.squashfs> 	root (0)
trynixos-store.squashfs> Number of gids 1
trynixos-store.squashfs> 	root (0)
building '/nix/store/rv0si3hn2w42pfvzxp5zvdf1gdjl1hkj-trynixos.iso.drv'
trynixos.iso> structuredAttrs is enabled
trynixos.iso> copying the boot image /nix/store/sigmasisa3jwk1j7bmpbnrw30df06a6q-syslinux-6.04-pre2-unstable-2019-02-07/share/syslinux/isolinux.bin
trynixos.iso> xorriso 1.5.8.pl02 : RockRidge filesystem manipulator, libburnia project.
trynixos.iso> 
trynixos.iso> xorriso : NOTE : Environment variable SOURCE_DATE_EPOCH encountered with value 315532800
trynixos.iso> Drive current: -outdev 'stdio:/nix/store/cjbpr57w0c9py6mwlhpkhj96nmlr3w1g-trynixos.iso/iso/trynixos.iso'
trynixos.iso> Media current: stdio file, overwriteable
trynixos.iso> Media status : is blank
trynixos.iso> Media summary: 0 sessions, 0 data blocks, 0 data,  857g free
trynixos.iso> xorriso : UPDATE :       6 files added in 1 seconds
trynixos.iso> Added 6 items from file 'pathlist'
trynixos.iso> xorriso : UPDATE :       6 files added in 1 seconds
trynixos.iso> xorriso : UPDATE :  57.33% done
trynixos.iso> ISO image produced: 31701 sectors
trynixos.iso> Written to medium : 31701 sectors at LBA 0
trynixos.iso> Writing to 'stdio:/nix/store/cjbpr57w0c9py6mwlhpkhj96nmlr3w1g-trynixos.iso/iso/trynixos.iso' completed successfully.
trynixos.iso> 

post-build step Upload to niks3: ok
time=2026-09-22T05:15:10.769Z level=INFO msg="Uploading 1 paths to 127.0.0.1 (0 already cached)"
time=2026-09-22T05:15:10.769Z level=INFO msg="Uploading cjbpr57w0c9py6mwlhpkhj96nmlr3w1g-trynixos.iso (61.9MB)"
time=2026-09-22T05:15:21.235Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-22T05:15:21.688Z level=INFO msg="Upload complete. (11.113s)"