these 2 derivations will be built:
  /nix/store/7ccvillwf8gcfngqc1qa26mzvw5msmwj-source.drv
  /nix/store/mbs6r2g039p5ddb0nwccd0qnd542x2p2-cups-kyocera-ecosys-m552x-p502x-8.1602.drv
building '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=23&system=aarch64-linux'
building '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv' on farm.numtide.com:50051
source> elastic-arm-0a911f46: building md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv
source> 
source> trying https://www.kyoceradocumentsolutions.de/content/download-center/de/drivers/all/Linux_8_1602_ECOSYS_M5521_5526_P5021_5026_zip.download.zip
source>   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
source>                                  Dload  Upload   Total   Spent    Left  Speed
source>   0  137k    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
source> curl: (22) The requested URL returned error: 404
source> error: cannot download source from any mirror
md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv: elastic-arm-0a911f46: error: Cannot build '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv'., asking the scheduler again
building '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv' on farm.numtide.com:50051
source> elastic-arm-0a911f46: building md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv
source> 
source> trying https://www.kyoceradocumentsolutions.de/content/download-center/de/drivers/all/Linux_8_1602_ECOSYS_M5521_5526_P5021_5026_zip.download.zip
source>   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
source>                                  Dload  Upload   Total   Spent    Left  Speed
source>   0  137k    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
source> curl: (22) The requested URL returned error: 404
source> error: cannot download source from any mirror
md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv: elastic-arm-0a911f46: error: Cannot build '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv'., asking the scheduler again
building '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv' on farm.numtide.com:50051
source> elastic-arm-0a911f46: building md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv
source> 
source> trying https://www.kyoceradocumentsolutions.de/content/download-center/de/drivers/all/Linux_8_1602_ECOSYS_M5521_5526_P5021_5026_zip.download.zip
source>   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
source>                                  Dload  Upload   Total   Spent    Left  Speed
source>   0  137k    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
source> curl: (22) The requested URL returned error: 404
source> error: cannot download source from any mirror
md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv: elastic-arm-0a911f46: error: Cannot build '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv'., asking the scheduler again
building '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv' on farm.numtide.com:50051
source> elastic-arm-0a911f46: building md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv
source> 
source> trying https://www.kyoceradocumentsolutions.de/content/download-center/de/drivers/all/Linux_8_1602_ECOSYS_M5521_5526_P5021_5026_zip.download.zip
source>   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
source>                                  Dload  Upload   Total   Spent    Left  Speed
source>   0  137k    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
source> curl: (22) The requested URL returned error: 404
source> error: cannot download source from any mirror
md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv: elastic-arm-0a911f46: error: Cannot build '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv'., asking the scheduler again
building '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv' on farm.numtide.com:50051
source> elastic-arm-0a911f46: building md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv
source> 
source> trying https://www.kyoceradocumentsolutions.de/content/download-center/de/drivers/all/Linux_8_1602_ECOSYS_M5521_5526_P5021_5026_zip.download.zip
source>   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
source>                                  Dload  Upload   Total   Spent    Left  Speed
source>   0  137k    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
source> curl: (22) The requested URL returned error: 404
source> error: cannot download source from any mirror
md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv: elastic-arm-0a911f46: error: Cannot build '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv'., asking the scheduler again
building '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv' on farm.numtide.com:50051
source> elastic-arm-0a911f46: building md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv
source> 
source> trying https://www.kyoceradocumentsolutions.de/content/download-center/de/drivers/all/Linux_8_1602_ECOSYS_M5521_5526_P5021_5026_zip.download.zip
source>   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
source>                                  Dload  Upload   Total   Spent    Left  Speed
source>   0  137k    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
source> curl: (22) The requested URL returned error: 404
source> error: cannot download source from any mirror
md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv: elastic-arm-0a911f46: error: Cannot build '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv'., asking the scheduler again
building '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv' on farm.numtide.com:50051
source> elastic-arm-0a911f46: building md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv
source> 
source> trying https://www.kyoceradocumentsolutions.de/content/download-center/de/drivers/all/Linux_8_1602_ECOSYS_M5521_5526_P5021_5026_zip.download.zip
source>   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
source>                                  Dload  Upload   Total   Spent    Left  Speed
source>   0  137k    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
source> curl: (22) The requested URL returned error: 404
source> error: cannot download source from any mirror
md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv: elastic-arm-0a911f46: error: Cannot build '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv'., asking the scheduler again
building '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv' on farm.numtide.com:50051
source> elastic-arm-0a911f46: building md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv
source> 
source> trying https://www.kyoceradocumentsolutions.de/content/download-center/de/drivers/all/Linux_8_1602_ECOSYS_M5521_5526_P5021_5026_zip.download.zip
source>   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
source>                                  Dload  Upload   Total   Spent    Left  Speed
source>   0  137k    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
source> curl: (22) The requested URL returned error: 404
source> error: cannot download source from any mirror
md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv: elastic-arm-0a911f46: error: Cannot build '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv'., asking the scheduler again
building '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv' on farm.numtide.com:50051
source> elastic-arm-0a911f46: building md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv
source> 
source> trying https://www.kyoceradocumentsolutions.de/content/download-center/de/drivers/all/Linux_8_1602_ECOSYS_M5521_5526_P5021_5026_zip.download.zip
source>   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
source>                                  Dload  Upload   Total   Spent    Left  Speed
source>   0  137k    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
source> curl: (22) The requested URL returned error: 404
source> error: cannot download source from any mirror
md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv: elastic-arm-0a911f46: error: Cannot build '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv'., asking the scheduler again
error: build of '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=23&system=aarch64-linux' failed: gave up after 9 reschedules
error: Cannot build '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/3fhbr1m28y450bg3i91bq118gp8ccxv0-source
error: build of resolved derivation '/nix/store/md7bdgkd9aakswp7z6lvljkf9zd1v550-source.drv' failed
error: Cannot build '/nix/store/mbs6r2g039p5ddb0nwccd0qnd542x2p2-cups-kyocera-ecosys-m552x-p502x-8.1602.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/xp08vz92jn02mdv0g57dhdfyfpf75k8y-cups-kyocera-ecosys-m552x-p502x-8.1602