roachtest: psycopg failed

[cockroach-teamcity]

roachtest.psycopg failed with artifacts on master @ 4dc05cceea254854317a9374a4b88df06c0946a6:

The test failed on branch=master, cloud=gce:
test artifacts and logs in: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/artifacts/psycopg/run_1
	orm_helpers.go:228,orm_helpers.go:154,psycopg.go:122,psycopg.go:135,test_runner.go:777: 
		Tests run on Cockroach v21.1.0-alpha.3-2478-g4dc05cceea
		Tests run against psycopg 2_8_6
		453 Total Tests Run
		450 tests passed
		3 tests failed
		319 tests skipped
		3 tests ignored
		0 tests passed unexpectedly
		1 test failed unexpectedly
		0 tests expected failed but skipped
		0 tests expected failed but not run
		---
		--- FAIL: tests.test_connection.TestEncryptPassword.test_encrypt_server (unexpected)
		For a full summary look at the psycopg artifacts 
		
		An updated blocklist (psycopgBlockList21_1) is available in the artifacts' psycopg log

Reproduce

To reproduce, try:

# From https://go.crdb.dev/p/roachstress, perhaps edited lightly.
caffeinate ./roachstress.sh psycopg

/cc @cockroachdb/sql-experience

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