abi-monitor tool issue

Hi all,

i am using abi-monitor tool bellow command is download particular kernel
abi-monitor -get -v 5.15.38 linux.json
this above command is working fine but after the download i am trying to build that kernel version that's why i am passing bellow
command
abi-monitor -build -v 5.15.38 linux.json

but its not build properly its showing error in bellow

ERROR : custom build has failed (exit code 256)
ERROR : failed to build

any one please help me,

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