Fix a few more upcoming Clippy lints

[adamreichold]

No description provided.

[codecov-commenter]

Codecov Report

Merging #2133 (15e685a) into main (42acd33) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

❗ Your organization is not using the GitHub App Integration. As a result you may experience degraded service beginning May 15th. Please install the Github App Integration for your organization. Read more.

@@            Coverage Diff             @@
##             main    #2133      +/-   ##
==========================================
- Coverage   94.39%   94.39%   -0.01%     
==========================================
  Files         319      319              
  Lines       60769    60766       -3     
==========================================
- Hits        57362    57359       -3     
  Misses       3407     3407              

Impacted Files	Coverage Δ
src/store/compressors.rs	97.70% <ø> (ø)
src/aggregation/bucket/histogram/histogram.rs	99.47% <100.00%> (-0.01%)	⬇️
src/aggregation/bucket/range.rs	97.37% <100.00%> (ø)
src/aggregation/intermediate_agg_result.rs	94.67% <100.00%> (ø)
src/aggregation/segment_agg_result.rs	95.68% <100.00%> (ø)
src/directory/directory.rs	90.14% <100.00%> (ø)
src/indexer/index_writer.rs	96.82% <100.00%> (ø)
src/indexer/merger.rs	98.86% <100.00%> (ø)