[no-release-notes] /go/performance/utils/benchmark_runner/{sysbench,tpcc}.go: fix output already set error

[coffeegoddd]

No description provided.

[github-actions]

This PR is being tested for SQL correctness. Please allow ~25 mins for this to complete. If this PR does not result in a SQL correctness regression, the correctness_approved label will be automatically added to this PR and the Check for correctness_approved workflow will succeed.

[github-actions]

@coffeegoddd DOLT

test_name	detail	row_cnt	sorted	mysql_time	sql_mult	cli_mult
batching	LOAD DATA	10000	1	0.06	0.67
batching	batch sql	10000	1	0.08	1.25
batching	by line sql	10000	1	0.08	1.25
blob	1 blob	200000	1	0.91	2.98	3.34
blob	2 blobs	200000	1	0.9	3.84	4.51
blob	no blob	200000	1	0.9	1.26	1.34
col type	datetime	200000	1	0.84	1.68	1.8
col type	varchar	200000	1	0.7	1.89	1.9
config width	2 cols	200000	1	0.77	1.25	1.32
config width	32 cols	200000	1	1.86	1.51	2.34
config width	8 cols	200000	1	0.98	1.28	1.54
pk type	float	200000	1	0.87	1.33	1.21
pk type	int	200000	1	0.76	1.46	1.32
pk type	varchar	200000	1	1.53	1.02	1.04
row count	1.6mm	1600000	1	5.6	1.46	1.53
row count	400k	400000	1	1.41	1.42	1.45
row count	800k	800000	1	2.81	1.44	1.5
secondary index	four index	200000	1	3.5	1.09	0.93
secondary index	no secondary	200000	1	0.91	1.24	1.43
secondary index	one index	200000	1	1.13	1.48	1.42
secondary index	two index	200000	1	2.02	1.19	1.07
sorting	shuffled 1mm	1000000	0	5.27	1.75	1.71
sorting	sorted 1mm	1000000	1	5.27	1.7	1.72

[github-actions]

@coffeegoddd DOLT

name	detail	mean_mult
dolt_blame_basic	system table	1.27
dolt_blame_commit_filter	system table	3.33
dolt_commit_ancestors_commit_filter	system table	0.85
dolt_commits_commit_filter	system table	1
dolt_diff_log_join_from_commit	system table	1.61
dolt_diff_log_join_to_commit	system table	1.62
dolt_diff_table_from_commit_filter	system table	1.17
dolt_diff_table_to_commit_filter	system table	1.13
dolt_diffs_commit_filter	system table	0.97
dolt_history_commit_filter	system table	1.53
dolt_log_commit_filter	system table	0.97

[github-actions]

@coffeegoddd DOLT

test_name	detail	row_cnt	sorted	mysql_time	sql_mult	cli_mult
batching	LOAD DATA	10000	1	0.06	0.67
batching	batch sql	10000	1	0.07	1.57
batching	by line sql	10000	1	0.08	1.25
blob	1 blob	200000	1	0.91	3.2	3.62
blob	2 blobs	200000	1	0.91	4.25	4.73
blob	no blob	200000	1	0.9	1.26	1.41
col type	datetime	200000	1	0.83	1.76	1.98
col type	varchar	200000	1	0.69	2.26	2.59
config width	2 cols	200000	1	0.8	1.26	1.33
config width	32 cols	200000	1	1.91	1.52	2.95
config width	8 cols	200000	1	1.15	1.22	1.42
pk type	float	200000	1	0.88	1.16	1.31
pk type	int	200000	1	0.8	1.24	1.33
pk type	varchar	200000	1	1.64	0.97	0.98
row count	1.6mm	1600000	1	5.71	1.5	1.58
row count	400k	400000	1	1.48	1.38	1.45
row count	800k	800000	1	2.87	1.49	1.56
secondary index	four index	200000	1	3.62	1.1	0.96
secondary index	no secondary	200000	1	0.9	1.33	1.48
secondary index	one index	200000	1	1.15	1.59	1.54
secondary index	two index	200000	1	2.01	1.23	1.15
sorting	shuffled 1mm	1000000	0	5.78	1.63	1.81
sorting	sorted 1mm	1000000	1	5.91	1.71	1.64

[github-actions]

@coffeegoddd DOLT

name	detail	mean_mult
dolt_blame_basic	system table	1.25
dolt_blame_commit_filter	system table	3.31
dolt_commit_ancestors_commit_filter	system table	0.85
dolt_commits_commit_filter	system table	0.91
dolt_diff_log_join_from_commit	system table	1.65
dolt_diff_log_join_to_commit	system table	1.64
dolt_diff_table_from_commit_filter	system table	1.17
dolt_diff_table_to_commit_filter	system table	1.17
dolt_diffs_commit_filter	system table	1
dolt_history_commit_filter	system table	1.57
dolt_log_commit_filter	system table	0.9