in findBuildDependencyInQueue in hydra_queue_runner.
C5W3WZ3YKLMDB7P6COIHDKSKSYDGAJBSIFIHFTEKRGSEJX7J7BNAC
O25D52TAMOPAK45N4II5XMWOBMPQJNHLW22M37COVY43EKNQBWJAC
2I2ZX6JBPIM5D57G52MGHKUD66CJMOYAYNYN6CSHNUHAFA46A5YQC
N22GPKYTOLZLBGTGDATQDVZ4R5APZEAOIA7L32X4UXBH4XNI7MWAC
create index IndexBuildsOnDrvPath on Builds(drvPath);