internal/metamorphic/crossversion/crossversion_test: TestMetaCrossVersion failed

[cockroach-teamcity]

internal/metamorphic/crossversion/crossversion_test.TestMetaCrossVersion failed with artifacts on refs/heads/master @ 791b3749feb5:

        iter23.Next("")
        iter27.SetBounds("bwpsxjykc@15", "bwpsxjykc@15")
        iter25.First()
        snap18.Get("uikp@15")
        snap18.Get("bklzg@46")
        iter25.Prev("")
        iter23.First()
        iter23.Prev("")
        iter24.SeekLT("wzro@8", "")
        iter25.Prev("")
        db1.IngestExternalFiles(external0, "pfhlmp" /* start */, "xfdzvesqzfqu" /* end */, "" /* syntheticSuffix */, "" /* syntheticPrefix */)
        snap18.Get("ipyfbzjjkccz@13")
        iter24.SeekGE("uikp@4", "ukqngnbb")
        db1.SingleDelete("wintgpfpc", false /* maybeReplaceDelete */)
        iter21.NextPrefix()
        snap18.Get("njigqiwnfw")
        db1.IngestExternalFiles(external0, "xfdzvesqzfqu" /* start */, "ybglsmtq" /* end */, "" /* syntheticSuffix */, "" /* syntheticPrefix */)
        iter27.Next("")
        iter26.Next("")
        iter27.Next("")
        db1.Set("ybglsmtq@34", "k")
        iter27.SeekPrefixGE("zqpknumxae@3")
        db1.IngestExternalFiles(external0, "tfja" /* start */, "ybglsmtq" /* end */, "@55" /* syntheticSuffix */, "" /* syntheticPrefix */, external0, "jaztfja" /* start */, "jazybglsmtq" /* end */, "" /* syntheticSuffix */, "jaz" /* syntheticPrefix */)
        db1.Get("prnyxfvr@8")
        iter27.Last()
        db1.Set("uxwoabffske@14", "h")
        iter26.First()
        iter26.SeekLT("mdwszgxqb@9", "")
        iter26.Prev("")
        iter23.SeekPrefixGE("aweambbwu")
        iter24.InternalNext()
        iter23.SeekGE("ybglsmtq@34", "")
        db1.IngestExternalFiles(external0, "sxowi" /* start */, "uhbbl" /* end */, "@57" /* syntheticSuffix */, "" /* syntheticPrefix */, external0, "stqapnmo" /* start */, "suxwoabffske" /* end */, "" /* syntheticSuffix */, "s" /* syntheticPrefix */, external0, "jshvit" /* start */, "kblx" /* end */, "@56" /* syntheticSuffix */, "" /* syntheticPrefix */, external0, "kblx" /* start */, "stqapnmo" /* end */, "" /* syntheticSuffix */, "" /* syntheticPrefix */)
        iter23.SeekPrefixGE("aweambbwu@9")
        iter25.Next("")
        iter23.SetBounds("mdwszgxqb@23", "ywgse@5")
        db1.Set("aweambbwu@12", "pplmnxxgfldgox")
        iter26.Close()
        iter27.Close()
        iter21.Close()
        iter23.Close()
        iter25.Close()
        iter24.Close()
        snap18.Close()
        snap19.Close()
        db1.Close()
        
        To reduce:  go test ./internal/metamorphic -tags invariants -run 'TestMeta$' --compare "/artifacts/tmp/_tmp/366cdd6e86440d4e9e9c98d28c5c6592/TestMetaCrossVersion1541470195/001/1723281556929389535/master_791b3749_419129674420735526_008/_meta/240810-092056.1993592836014/{standard-000,random-014}" --try-to-reduce -v
        
        --- FAIL: TestMetaCrossVersion/execution-master/sha=7e594e28-seed=13102867164713446728-opts=random-012(sha=848f3c6e-seed=8168522583084423651-opts=standard-001(sha=1becf831-seed=2386158681653477521-opts=random-005(sha=ffd5ce9c-seed=16392966780622546391-opts=standard-003(<empty>)))) (281.58s)

Help

See also: How To Investigate a Go Test Failure (internal)

/cc @cockroachdb/test-eng

This test on roachdash | Improve this report!

Jira issue: PEBBLE-235

[RaduBerinde]

-iter24.SeekGE("pjqgdttb", "") // [true,"tqapnmo",<no point>,["tqapnmo","uhbbl")=>{"@39"="gdmajuuva","@36"="gdmajuuva","@35"="gdmajuuva","@27"="qpgvjztmbgurilowzx","@24"="gdmajuuva","@22"="esdmgqm","@19"="bbraskxtttvxokyof","@3"="gdmajuuva"}*] <nil> #2387
[09:25:42 ](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_NightlyPebbleMetamorphicCrossversion/16404922?buildTab=log&focusLine=8631&logView=flowAware&linesState=8631)          +iter24.SeekGE("pjqgdttb", "") // [true,"tqapnmo",<no point>,["tqapnmo","tyrsuxwoabffske")=>{"@39"="bbraskxtttvxokyof","@36"="gdmajuuva","@35"="gdmajuuva","@27"="qpgvjztmbgurilowzx","@24"="gdmajuuva","@22"="esdmgqm","@19"="bbraskxtttvxokyof","@3"="gdmajuuva"}*] <nil> #2387

Same as #3824.