Debug flaky tests

[flimzy]

No description provided.

[codecov]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (4a37f5a) 79.24% compared to head (45c937e) 79.26%.
Report is 8 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #756      +/-   ##
==========================================
+ Coverage   79.24%   79.26%   +0.01%     
==========================================
  Files         165      165              
  Lines       12973    12977       +4     
==========================================
+ Hits        10281    10286       +5     
  Misses       2252     2252              
+ Partials      440      439       -1     

Files	Coverage Δ
cmd/kivik/cmd/get_attachment.go	87.17% <86.66%> (+4.32%)	⬆️
cmd/kivik/output/output.go	10.75% <0.00%> (ø)

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