gc/gc-8.2.6-1-x86_64.pkg.tar.zst build reproducible in our test framework:
267939c6f9d784dfe54792280cc9e58bdcf10aeabbef02427337a304f3123324 gc-8.2.6-1-x86_64.pkg.tar.zst
cea22d5848607980de57307e5de67cf3a57de47d36012194fcf1b197fb8c51d1 gc-8.2.6-1-x86_64.pkg.tar.zst-b1.BUILDINFO.txt
cea22d5848607980de57307e5de67cf3a57de47d36012194fcf1b197fb8c51d1 gc-8.2.6-1-x86_64.pkg.tar.zst-b2.BUILDINFO.txt