these 32 derivations will be built:
  /nix/store/0l71gx8mf47clns957dbkxn3glpvpk4i-string-hosts.drv
  /nix/store/cjgvmsmw33jklvkgafqr7m2bxj337j4n-users-groups.json.drv
  /nix/store/0nm1cqf2xwinj3nxf449fww2ixicrw9m-dry-activate.drv
  /nix/store/3iih0bp861g00r6181xrb8sk192sx0dq-clan-webapp-demo-test-clan.drv
  /nix/store/lqb332kcxbynbi65af48f8scbpcl1f05-clan-webapp-demo-test-clan.desktop.drv
  /nix/store/gdrsdb7bxk2b6km72iaak1qlfrx1lr82-clan-webapp-test-example-com.drv
  /nix/store/mg8as5w2513jk8j6rl5qaqkykkmmrbg0-clan-webapp-test-example-com.desktop.drv
  /nix/store/983yagb79qvlzfznyxab72d2570cw6aq-system-path.drv
  /nix/store/0smp56894j6ahbkm3iiaqx2309x07lzq-dbus-1.drv
  /nix/store/93dfxzm215y51ach37rzw1hkyjb7kr6v-mosquitto-acl-0.conf.drv
  /nix/store/a21xr73ghbh34habq1d4vcm1bwmg6043-make-mosquitto-passwd.drv
  /nix/store/9smqy004qfaiaqp191zbdpapi6s1s7s0-unit-script-mosquitto-pre-start.drv
  /nix/store/w3n91ccm60i8qwh78w8qjhm40lxj7bh2-mosquitto.conf.drv
  /nix/store/5kxpjsb7qdvxp28fg00jfgp4hy1h6gy5-unit-mosquitto.service.drv
  /nix/store/lbpw6sd88cg7czxxpg1cczxxmw1lk2jk-X-Restart-Triggers-dbus-broker.drv
  /nix/store/nhkcq8l09cly93pgqk6i2jwix75hgbbp-unit-dbus-broker.service.drv
  /nix/store/gn0navx59k7c5wz40plw80f21jkp6b7z-firewall-start.drv
  /nix/store/8gs9yn18pnb22wf69z7waim8r5m75d9i-firewall-reload.drv
  /nix/store/vvmcvddl9qwi4lzdiiyb8kyq3149vf18-unit-firewall.service.drv
  /nix/store/6hn9zqzlp8dnlcfm5rqssigg4bfn0xvx-system-units.drv
  /nix/store/r45j0pqy3j0hryfmh1ym2c4p7db9iv3b-generator-mosquitto.drv
  /nix/store/hiqsgdxbdcmm830699wn5n79rxhy43nq-vars-check-webapps.drv
  /nix/store/p6p952ygyphmnpvlmpbl417qvmc9w8cd-unit-dbus-broker.service.drv
  /nix/store/nb23ylib1c18yab8p8plrlc78y4k23mf-user-units.drv
  /nix/store/sdl7pf5lnxz4fxd0q9f4r3f9c1p2fzpq-hosts.drv
  /nix/store/5gqfin35m85h77p7j05haj6wfyl7d8ks-etc.drv
  /nix/store/nfwb0fvmjmcc03n6xc4hy3zld3hdd7h6-activate.drv
  /nix/store/6s597az83znfdb3dvrrr6zlxw17ig8q8-nixos-system-server-test.drv
  /nix/store/ipibz8rh192xsmfjbd5ij3rzd94579m7-testScript.drv
  /nix/store/1m915pc1rmv87ia7zd6ndyrz5cld1bvq-closure-info.drv
  /nix/store/lwnzd3invqjsjcxz74z9kc2cmrlr9357-nixos-test-driver-webapps.drv
  /nix/store/630pr2sh0mz4dny6kim22djrcvxk873c-container-test-run-webapps.drv
these 7 paths will be fetched (200.9 MiB download, 723.3 MiB unpacked):
  /nix/store/yf4mh05ia1hg1c9m9mapg4bxdqrkmbs4-adwaita-icon-theme-50.0
  /nix/store/zv34zr5grfssaamch9dk9gk38z09666c-mosquitto-2.1.2
  /nix/store/fsv1k3jr1j3ibzm9wg0mz7p0dcf7f6vl-mosquitto-2.1.2-lib
  /nix/store/596qpms8cg4gqx0sh7gq10r4i7zhi3si-ungoogled-chromium-151.0.7922.173
  /nix/store/wmhlv7km555dphpf85v6kp1mdnym204x-ungoogled-chromium-151.0.7922.173-sandbox
  /nix/store/l26k8pfm14n1aaawxpa7053lfs83jwkh-ungoogled-chromium-unwrapped-151.0.7922.173
  /nix/store/j7ds3njr64n7842748ynb09ljhhx0bbd-ungoogled-chromium-unwrapped-151.0.7922.173-sandbox
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy