these 5 derivations will be built: /nix/store/7zvywggc3l15wpk2pqc4ljfryhmqmbyf-manifest-v4l2loopback.yaml.drv /nix/store/fq688ly2b6gva87bv0115pmqw8bgljd9-uname.drv /nix/store/jgswqf35w6wacdsr5v9w4ll0xqpmmm91-v4l2loopback-0.15.3.drv /nix/store/f8hf1z2lww9wb44zlb1kfrw2yi38jjgy-closure-info.drv /nix/store/1ikdq6c0im3lvki827q0jbggpcwj2hf1-talos-kmod-extension-v4l2loopback.sqsh.drv this path will be fetched (73.5 KiB download, 326.5 KiB unpacked): /nix/store/zxgclkwfpy6w07aa2ajzxd5h9hccps7a-source copying path '/nix/store/zxgclkwfpy6w07aa2ajzxd5h9hccps7a-source' from 'https://cache.nixos.org'... building '/nix/store/7zvywggc3l15wpk2pqc4ljfryhmqmbyf-manifest-v4l2loopback.yaml.drv'... building '/nix/store/fq688ly2b6gva87bv0115pmqw8bgljd9-uname.drv'... Running phase: patchPhase Running phase: updateAutotoolsGnuConfigScriptsPhase Running phase: configurePhase no configure script, doing nothing Running phase: buildPhase Running phase: checkPhase Running phase: installPhase no Makefile or custom installPhase, doing nothing Running phase: fixupPhase shrinking RPATHs of ELF executables and libraries in /nix/store/zl8l8rvrva50hyrmj59bj3w30zkrp72v-uname checking for references to /build/ in /nix/store/zl8l8rvrva50hyrmj59bj3w30zkrp72v-uname... patching script interpreter paths in /nix/store/zl8l8rvrva50hyrmj59bj3w30zkrp72v-uname building '/nix/store/jgswqf35w6wacdsr5v9w4ll0xqpmmm91-v4l2loopback-0.15.3.drv'... Running phase: unpackPhase unpacking source archive /nix/store/zxgclkwfpy6w07aa2ajzxd5h9hccps7a-source source root is source Running phase: patchPhase Running phase: updateAutotoolsGnuConfigScriptsPhase Running phase: configurePhase no configure script, doing nothing Running phase: buildPhase build flags: SHELL=/nix/store/i27rhb3nr65rkrwz36bchkwmav6ggsmn-bash-5.3p9/bin/bash CC=/nix/store/sanx9fg8mry8mq92zhlm5qvb83qlxrlx-gcc-15.2.0/bin/gcc LD=/nix/store/p2vkw5s89ff1fs2d2rxqxiqil9s0jpcm-binutils-2.46/bin/ld AR=/nix/store/qd70v8g0561vm8m33kmnp79z00cgyi5n-gcc-wrapper-15.2.0/bin/ar NM=/nix/store/qd70v8g0561vm8m33kmnp79z00cgyi5n-gcc-wrapper-15.2.0/bin/nm STRIP=/nix/store/p2vkw5s89ff1fs2d2rxqxiqil9s0jpcm-binutils-2.46/bin/strip OBJCOPY=/nix/store/qd70v8g0561vm8m33kmnp79z00cgyi5n-gcc-wrapper-15.2.0/bin/objcopy OBJDUMP=/nix/store/qd70v8g0561vm8m33kmnp79z00cgyi5n-gcc-wrapper-15.2.0/bin/objdump READELF=/nix/store/qd70v8g0561vm8m33kmnp79z00cgyi5n-gcc-wrapper-15.2.0/bin/readelf HOSTCC=/nix/store/qd70v8g0561vm8m33kmnp79z00cgyi5n-gcc-wrapper-15.2.0/bin/cc HOSTCXX=/nix/store/qd70v8g0561vm8m33kmnp79z00cgyi5n-gcc-wrapper-15.2.0/bin/c++ HOSTAR=/nix/store/kfwagnh6i1mysf7vxq679rzh30z9zj3g-binutils-wrapper-2.46/bin/ar HOSTLD=/nix/store/kfwagnh6i1mysf7vxq679rzh30z9zj3g-binutils-wrapper-2.46/bin/ld ARCH=x86_64 CROSS_COMPILE= KBUILD_OUTPUT=/nix/store/fychybr9q469ld1q13fj8c2pscvpk1f3-linux-6.18.24-dev/lib/modules/6.18.24-talos/build KERNELRELEASE=6.18.24-talos KERNEL_DIR=/nix/store/fychybr9q469ld1q13fj8c2pscvpk1f3-linux-6.18.24-dev/lib/modules/6.18.24-talos/build v4l2loopback.ko 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' Building v4l2-loopback driver... make -C /nix/store/fychybr9q469ld1q13fj8c2pscvpk1f3-linux-6.18.24-dev/lib/modules/6.18.24-talos/build M=/build/source KCPPFLAGS="" modules make[1]: Entering directory '/nix/store/fychybr9q469ld1q13fj8c2pscvpk1f3-linux-6.18.24-dev/lib/modules/6.18.24-talos/build' make[2]: 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 Skipping BTF generation for v4l2loopback.ko due to unavailability of vmlinux make[2]: Leaving directory '/build/source' make[1]: Leaving directory '/nix/store/fychybr9q469ld1q13fj8c2pscvpk1f3-linux-6.18.24-dev/lib/modules/6.18.24-talos/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 install flags: SHELL=/nix/store/i27rhb3nr65rkrwz36bchkwmav6ggsmn-bash-5.3p9/bin/bash CC=/nix/store/sanx9fg8mry8mq92zhlm5qvb83qlxrlx-gcc-15.2.0/bin/gcc LD=/nix/store/p2vkw5s89ff1fs2d2rxqxiqil9s0jpcm-binutils-2.46/bin/ld AR=/nix/store/qd70v8g0561vm8m33kmnp79z00cgyi5n-gcc-wrapper-15.2.0/bin/ar NM=/nix/store/qd70v8g0561vm8m33kmnp79z00cgyi5n-gcc-wrapper-15.2.0/bin/nm STRIP=/nix/store/p2vkw5s89ff1fs2d2rxqxiqil9s0jpcm-binutils-2.46/bin/strip OBJCOPY=/nix/store/qd70v8g0561vm8m33kmnp79z00cgyi5n-gcc-wrapper-15.2.0/bin/objcopy OBJDUMP=/nix/store/qd70v8g0561vm8m33kmnp79z00cgyi5n-gcc-wrapper-15.2.0/bin/objdump READELF=/nix/store/qd70v8g0561vm8m33kmnp79z00cgyi5n-gcc-wrapper-15.2.0/bin/readelf HOSTCC=/nix/store/qd70v8g0561vm8m33kmnp79z00cgyi5n-gcc-wrapper-15.2.0/bin/cc HOSTCXX=/nix/store/qd70v8g0561vm8m33kmnp79z00cgyi5n-gcc-wrapper-15.2.0/bin/c++ HOSTAR=/nix/store/kfwagnh6i1mysf7vxq679rzh30z9zj3g-binutils-wrapper-2.46/bin/ar HOSTLD=/nix/store/kfwagnh6i1mysf7vxq679rzh30z9zj3g-binutils-wrapper-2.46/bin/ld ARCH=x86_64 CROSS_COMPILE= KBUILD_OUTPUT=/nix/store/fychybr9q469ld1q13fj8c2pscvpk1f3-linux-6.18.24-dev/lib/modules/6.18.24-talos/build KERNELRELEASE=6.18.24-talos KERNEL_DIR=/nix/store/fychybr9q469ld1q13fj8c2pscvpk1f3-linux-6.18.24-dev/lib/modules/6.18.24-talos/build v4l2loopback.ko pkgconfigdir=/nix/store/gjx3qcljmg62pkmh9xswvvc224ji43ml-v4l2loopback-0.15.3/lib/pkgconfig m4datadir=/nix/store/gjx3qcljmg62pkmh9xswvvc224ji43ml-v4l2loopback-0.15.3/share/aclocal aclocaldir=/nix/store/gjx3qcljmg62pkmh9xswvvc224ji43ml-v4l2loopback-0.15.3/share/aclocal install 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' Building v4l2-loopback driver... make -C /nix/store/fychybr9q469ld1q13fj8c2pscvpk1f3-linux-6.18.24-dev/lib/modules/6.18.24-talos/build M=/build/source KCPPFLAGS="" modules make[1]: Entering directory '/nix/store/fychybr9q469ld1q13fj8c2pscvpk1f3-linux-6.18.24-dev/lib/modules/6.18.24-talos/build' make[2]: Entering directory '/build/source' make[2]: Leaving directory '/build/source' make[1]: Leaving directory '/nix/store/fychybr9q469ld1q13fj8c2pscvpk1f3-linux-6.18.24-dev/lib/modules/6.18.24-talos/build' make -C /nix/store/fychybr9q469ld1q13fj8c2pscvpk1f3-linux-6.18.24-dev/lib/modules/6.18.24-talos/build M=/build/source INSTALL_MOD_PATH=/nix/store/gjx3qcljmg62pkmh9xswvvc224ji43ml-v4l2loopback-0.15.3 modules_install make[1]: Entering directory '/nix/store/fychybr9q469ld1q13fj8c2pscvpk1f3-linux-6.18.24-dev/lib/modules/6.18.24-talos/build' make[2]: Entering directory '/build/source' INSTALL /nix/store/gjx3qcljmg62pkmh9xswvvc224ji43ml-v4l2loopback-0.15.3/lib/modules/6.18.24-talos/updates/v4l2loopback.ko SIGN /nix/store/gjx3qcljmg62pkmh9xswvvc224ji43ml-v4l2loopback-0.15.3/lib/modules/6.18.24-talos/updates/v4l2loopback.ko At main.c:171: - SSL error:FFFFFFFF80000002:system library::No such file or directory: crypto/bio/bss_file.c:67 - SSL error:10000080:BIO routines::no such file: crypto/bio/bss_file.c:75 sign-file: /nix/store/fychybr9q469ld1q13fj8c2pscvpk1f3-linux-6.18.24-dev/lib/modules/6.18.24-talos/build/certs/signing_key.pem DEPMOD /nix/store/gjx3qcljmg62pkmh9xswvvc224ji43ml-v4l2loopback-0.15.3/lib/modules/6.18.24-talos Warning: modules_install: missing 'System.map' file. Skipping depmod. make[2]: Leaving directory '/build/source' make[1]: Leaving directory '/nix/store/fychybr9q469ld1q13fj8c2pscvpk1f3-linux-6.18.24-dev/lib/modules/6.18.24-talos/build' SUCCESS (if you got 'SSL errors' above, you can safely ignore them) 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/an1ymz7dw6bjwagcb1hpjam64rsyn8hq-v4l2loopback-0.15.3-bin/bin" install -p -m 755 utils/v4l2loopback-ctl "/nix/store/an1ymz7dw6bjwagcb1hpjam64rsyn8hq-v4l2loopback-0.15.3-bin/bin" Running phase: fixupPhase shrinking RPATHs of ELF executables and libraries in /nix/store/gjx3qcljmg62pkmh9xswvvc224ji43ml-v4l2loopback-0.15.3 shrinking /nix/store/gjx3qcljmg62pkmh9xswvvc224ji43ml-v4l2loopback-0.15.3/lib/modules/6.18.24-talos/updates/v4l2loopback.ko patchelf: wrong ELF type checking for references to /build/ in /nix/store/gjx3qcljmg62pkmh9xswvvc224ji43ml-v4l2loopback-0.15.3... patchelf: wrong ELF type patching script interpreter paths in /nix/store/gjx3qcljmg62pkmh9xswvvc224ji43ml-v4l2loopback-0.15.3 stripping (with command strip and flags -S -p) in /nix/store/gjx3qcljmg62pkmh9xswvvc224ji43ml-v4l2loopback-0.15.3/lib shrinking RPATHs of ELF executables and libraries in /nix/store/an1ymz7dw6bjwagcb1hpjam64rsyn8hq-v4l2loopback-0.15.3-bin shrinking /nix/store/an1ymz7dw6bjwagcb1hpjam64rsyn8hq-v4l2loopback-0.15.3-bin/bin/v4l2loopback-ctl checking for references to /build/ in /nix/store/an1ymz7dw6bjwagcb1hpjam64rsyn8hq-v4l2loopback-0.15.3-bin... patching script interpreter paths in /nix/store/an1ymz7dw6bjwagcb1hpjam64rsyn8hq-v4l2loopback-0.15.3-bin stripping (with command strip and flags -S -p) in /nix/store/an1ymz7dw6bjwagcb1hpjam64rsyn8hq-v4l2loopback-0.15.3-bin/bin building '/nix/store/f8hf1z2lww9wb44zlb1kfrw2yi38jjgy-closure-info.drv'... structuredAttrs is enabled building '/nix/store/1ikdq6c0im3lvki827q0jbggpcwj2hf1-talos-kmod-extension-v4l2loopback.sqsh.drv'... depmod: WARNING: -e needs -E or -F depmod: WARNING: could not open modules.order at /build/depmod-tree/lib/modules/6.18.24-talos: No such file or directory depmod: WARNING: could not open modules.builtin at /build/depmod-tree/lib/modules/6.18.24-talos: No such file or directory depmod: WARNING: could not open modules.builtin.modinfo at /build/depmod-tree/lib/modules/6.18.24-talos: No such file or directory validating modprobe chain for v4l2loopback Parallel mksquashfs: Using 12 processors Creating 4.0 filesystem on /nix/store/5fjgzf36j805fc4fsnc70i1payr8lvwi-talos-kmod-extension-v4l2loopback.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 10219.25 Kbytes (9.98 Mbytes) 26.84% of uncompressed filesystem size (38073.05 Kbytes) Inode table size 8218 bytes (8.03 Kbytes) 21.22% of uncompressed inode table size (38723 bytes) Directory table size 8346 bytes (8.15 Kbytes) 37.46% of uncompressed directory table size (22281 bytes) Number of duplicate files found 2 Number of inodes 1173 Number of files 988 Number of fragments 115 Number of symbolic links 17 Number of device nodes 0 Number of fifo nodes 0 Number of socket nodes 0 Number of directories 168 Number of hard-links 5 Number of ids (unique uids + gids) 1 Number of uids 1 root (0) Number of gids 1 root (0)