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Former-commit-id: 1bcd7c29

closes #85

.git.bfg-report/2021-07-01/13-24-14/cache-stats.txt

+(apply,CacheStats{hitCount=1574, missCount=1272, loadSuccessCount=1272, loadExceptionCount=0, totalLoadTime=2527581017, evictionCount=0})
+(tree,CacheStats{hitCount=10217, missCount=7686, loadSuccessCount=7596, loadExceptionCount=0, totalLoadTime=8213136503, evictionCount=0})
+(commit,CacheStats{hitCount=694, missCount=643, loadSuccessCount=643, loadExceptionCount=0, totalLoadTime=275826606, evictionCount=0})
+(tag,CacheStats{hitCount=0, missCount=0, loadSuccessCount=0, loadExceptionCount=0, totalLoadTime=0, evictionCount=0})