try_require mentions install.packages

[tdhock]

fixes animint/animint-manual-fr#111

[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 69.53%. Comparing base (ec4b911) to head (21d5b0c).

Files with missing lines	Patch %	Lines
R/utilities.r	50.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #275   +/-   ##
=======================================
  Coverage   69.53%   69.53%           
=======================================
  Files         163      163           
  Lines        6004     6001    -3     
=======================================
- Hits         4175     4173    -2     
+ Misses       1829     1828    -1     

Flag	Coverage Δ
r	69.53% <66.66%> (+<0.01%)	⬆️

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[tdhock]

No obvious timing issues in HEAD=try_require_mention_install

Generated via commit 21d5b0c

Download link for the artifact containing the test results: ↓ atime-results.zip

Task	Duration
R setup and installing dependencies	4 minutes and 36 seconds
Installing different package versions	1 minutes and 0 seconds
Running and plotting the test cases	3 minutes and 22 seconds