ci: Try to reduce unittest memory usage

[Xuanwo]

Signed-off-by: Xuanwo [email protected]

I hereby agree to the terms of the CLA available at: https://databend.rs/dev/policies/cla/

Summary

This PR intends to reduce memory usage during compiling.

It's a workaround inspired by rust-lang/rust#82406 (comment).

Hoping this can resolve the failed tests for databend.

Changelog

• Build/Testing/CI

Test Plan

Unit Tests

Stateless Tests

[databend-bot]

Thanks for the contribution!
I have applied any labels matching special text in your PR Changelog.

Please review the labels and make any necessary changes.

[databend-bot]

Thanks for the contribution!
I have applied any labels matching special text in your PR Changelog.

Please review the labels and make any necessary changes.

[vercel]

This pull request is being automatically deployed with Vercel (learn more).
To see the status of your deployment, click below or on the icon next to each commit.

🔍 Inspect: https://vercel.com/databend/databend/G62pWacsEW8atTAoGPdjS1FM7nVa
✅ Preview: Canceled

[Deployment for 0d62561 canceled]

[Xuanwo]

I plan to rerun this PR's test_unit three time to make sure it really works.

[codecov-commenter]

Codecov Report

Merging #3929 (0d62561) into main (82e6e4c) will increase coverage by 0%.
The diff coverage is 87%.

@@          Coverage Diff          @@
##            main   #3929   +/-   ##
=====================================
  Coverage     56%     56%           
=====================================
  Files        800     801    +1     
  Lines      42754   42714   -40     
=====================================
- Hits       24350   24331   -19     
+ Misses     18404   18383   -21     

Impacted Files	Coverage Δ
common/meta/raft-store/src/state/raft_state.rs	27% <ø> (ø)
common/meta/sled-store/src/sled_serde.rs	100% <ø> (ø)
common/meta/types/src/applied_state.rs	50% <ø> (ø)
common/meta/types/src/cluster.rs	88% <ø> (ø)
common/meta/types/src/cmd.rs	100% <ø> (ø)
common/meta/types/src/log_entry.rs	100% <ø> (ø)
common/meta/types/src/message.rs	95% <ø> (ø)
common/meta/types/src/raft_types.rs	33% <ø> (+16%)	⬆️
metasrv/src/errors.rs	24% <0%> (+<1%)	⬆️
metasrv/src/store/to_storage_error.rs	44% <44%> (ø)
... and 20 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update a89b24c...0d62561. Read the comment docs.

[Xuanwo]

Oh, it's failed 😢