structuredAttrs is enabled
Running phase: unamePreHook
Running phase: unpackPhase
unpacking source archive /nix/store/4a0di30bgwpz8ic5ymicv6rxn3jjpys0-source
source root is source
Running phase: patchPhase
Running phase: updateAutotoolsGnuConfigScriptsPhase
Running phase: configurePhase
no configure script, doing nothing
Running phase: buildPhase
make: Entering directory '/nix/store/b8bcbkmbiiwlpzqmsk96plmc4q5bgx7a-linux-7.3-dev/lib/modules/7.3.0/build'
make[1]: Entering directory '/build/source'
  CC [M]  v4l2loopback.o
  MODPOST Module.symvers
  CC [M]  v4l2loopback.mod.o
  CC [M]  .module-common.o
  LD [M]  v4l2loopback.ko
  BTF [M] v4l2loopback.ko
make[1]: Leaving directory '/build/source'
make: Leaving directory '/nix/store/b8bcbkmbiiwlpzqmsk96plmc4q5bgx7a-linux-7.3-dev/lib/modules/7.3.0/build'
grep: /etc/dkms/framework.conf: No such file or directory
grep: /etc/dkms/framework.conf.d/*.conf: No such file or directory

++++++ To sign the  module, you must set KBUILD_SIGN_KEY/KBUILD_SIGN_CERT to point to the signing key/certificate!
++++++ For your convenience, we try to read these variables as 'mok_signing_key' resp. 'mok_certificate' from /etc/dkms/framework.conf /etc/dkms/framework.conf.d/*.conf

++++++ If your certificate requires a password, pass it via the KBUILD_SIGN_PIN env-var!
grep: /etc/dkms/framework.conf: No such file or directory
grep: /etc/dkms/framework.conf.d/*.conf: No such file or directory
++++++ E.g. using 'export KBUILD_SIGN_PIN; read -s -p "Passphrase for signing key : " KBUILD_SIGN_PIN; sudo --preserve-env=KBUILD_SIGN_PIN make sign'

make -C utils V4L2LOOPBACK_SNAPSHOT_VERSION=
make[1]: Entering directory '/build/source/utils'
gcc  -I..  -c -o v4l2loopback-ctl.o v4l2loopback-ctl.c
gcc   v4l2loopback-ctl.o   -o v4l2loopback-ctl
make[1]: Leaving directory '/build/source/utils'
Running phase: installPhase
make: Entering directory '/nix/store/b8bcbkmbiiwlpzqmsk96plmc4q5bgx7a-linux-7.3-dev/lib/modules/7.3.0/build'
make[1]: Entering directory '/build/source'
  INSTALL /nix/store/laiavyaan17hw0ngw8r24d5w6m3ras43-v4l2loopback-0.15.4/lib/modules/7.3.0/updates/v4l2loopback.ko
  STRIP   /nix/store/laiavyaan17hw0ngw8r24d5w6m3ras43-v4l2loopback-0.15.4/lib/modules/7.3.0/updates/v4l2loopback.ko
  SIGN    /nix/store/laiavyaan17hw0ngw8r24d5w6m3ras43-v4l2loopback-0.15.4/lib/modules/7.3.0/updates/v4l2loopback.ko
  XZ      /nix/store/laiavyaan17hw0ngw8r24d5w6m3ras43-v4l2loopback-0.15.4/lib/modules/7.3.0/updates/v4l2loopback.ko.xz
  DEPMOD  /nix/store/laiavyaan17hw0ngw8r24d5w6m3ras43-v4l2loopback-0.15.4/lib/modules/7.3.0
make[1]: Leaving directory '/build/source'
make: Leaving directory '/nix/store/b8bcbkmbiiwlpzqmsk96plmc4q5bgx7a-linux-7.3-dev/lib/modules/7.3.0/build'
grep: /etc/dkms/framework.conf: No such file or directory
grep: /etc/dkms/framework.conf.d/*.conf: No such file or directory

++++++ To sign the  module, you must set KBUILD_SIGN_KEY/KBUILD_SIGN_CERT to point to the signing key/certificate!
++++++ For your convenience, we try to read these variables as 'mok_signing_key' resp. 'mok_certificate' from /etc/dkms/framework.conf /etc/dkms/framework.conf.d/*.conf

++++++ If your certificate requires a password, pass it via the KBUILD_SIGN_PIN env-var!
grep: /etc/dkms/framework.conf: No such file or directory
grep: /etc/dkms/framework.conf.d/*.conf: No such file or directory
++++++ E.g. using 'export KBUILD_SIGN_PIN; read -s -p "Passphrase for signing key : " KBUILD_SIGN_PIN; sudo --preserve-env=KBUILD_SIGN_PIN make sign'

install -p -m 755 -d "/nix/store/8ibhzdzk9qrnix4b16wjdbkxzcw4ma8z-v4l2loopback-0.15.4-bin/bin"
install -p -m 755 utils/v4l2loopback-ctl "/nix/store/8ibhzdzk9qrnix4b16wjdbkxzcw4ma8z-v4l2loopback-0.15.4-bin/bin"
Running phase: fixupPhase
shrinking RPATHs of ELF executables and libraries in /nix/store/8ibhzdzk9qrnix4b16wjdbkxzcw4ma8z-v4l2loopback-0.15.4-bin
shrinking /nix/store/8ibhzdzk9qrnix4b16wjdbkxzcw4ma8z-v4l2loopback-0.15.4-bin/bin/v4l2loopback-ctl
checking for references to /build/ in /nix/store/8ibhzdzk9qrnix4b16wjdbkxzcw4ma8z-v4l2loopback-0.15.4-bin...
patching script interpreter paths in /nix/store/8ibhzdzk9qrnix4b16wjdbkxzcw4ma8z-v4l2loopback-0.15.4-bin
stripping (with command strip and flags -S -p) in /nix/store/8ibhzdzk9qrnix4b16wjdbkxzcw4ma8z-v4l2loopback-0.15.4-bin/bin
shrinking RPATHs of ELF executables and libraries in /nix/store/laiavyaan17hw0ngw8r24d5w6m3ras43-v4l2loopback-0.15.4
checking for references to /build/ in /nix/store/laiavyaan17hw0ngw8r24d5w6m3ras43-v4l2loopback-0.15.4...
patching script interpreter paths in /nix/store/laiavyaan17hw0ngw8r24d5w6m3ras43-v4l2loopback-0.15.4
stripping (with command strip and flags -S -p) in /nix/store/laiavyaan17hw0ngw8r24d5w6m3ras43-v4l2loopback-0.15.4/lib