these 3 derivations will be built:
  /nix/store/i1fq9r74q5p8y9pmk31cjsa7g31jfv5s-closure-info.drv
  /nix/store/w0x9l3rp327cyams7iwv4qw2yx5ln53s-manifest-hello.yaml.drv
  /nix/store/64gmzk0r54sa2bcv3idz4lqy82pmfqsl-talos-extension-hello.sqsh.drv
this path will be fetched (225.9 KiB download, 680.5 KiB unpacked):
  /nix/store/hsdwnifr4iy4xq9bs2vhlld7r0n4xvmr-squashfs-4.7.5
copying path '/nix/store/hsdwnifr4iy4xq9bs2vhlld7r0n4xvmr-squashfs-4.7.5' from 'https://cache.nixos.org'...
building '/nix/store/w0x9l3rp327cyams7iwv4qw2yx5ln53s-manifest-hello.yaml.drv'...
building '/nix/store/i1fq9r74q5p8y9pmk31cjsa7g31jfv5s-closure-info.drv'...
structuredAttrs is enabled
building '/nix/store/64gmzk0r54sa2bcv3idz4lqy82pmfqsl-talos-extension-hello.sqsh.drv'...
Parallel mksquashfs: Using 12 processors
Creating 4.0 filesystem on /nix/store/61hfxi884zbkawa1jslmdww12fascadl-talos-extension-hello.sqsh, block size 131072.

Exportable Squashfs 4.0 filesystem, xz compressed, data block size 131072
        compressed data, compressed metadata, compressed fragments,
        no xattrs, compressed ids
        duplicates are removed
Filesystem size 10087.03 Kbytes (9.85 Mbytes)
        27.33% of uncompressed filesystem size (36905.12 Kbytes)
Inode table size 8920 bytes (8.71 Kbytes)
        20.85% of uncompressed inode table size (42775 bytes)
Directory table size 9116 bytes (8.90 Kbytes)
        36.16% of uncompressed directory table size (25210 bytes)
Number of duplicate files found 0
Number of inodes 1302
Number of files 1025
Number of fragments 116
Number of symbolic links 17
Number of device nodes 0
Number of fifo nodes 0
Number of socket nodes 0
Number of directories 260
Number of hard-links 5
Number of ids (unique uids + gids) 1
Number of uids 1
        root (0)
Number of gids 1
        root (0)