chef build is around 60x slower than chefless build with cache

[garysassano]

Could somebody help me understand why this happens?

chef 1st run: https://github.com/garysassano/dummy/actions/runs/15756336482
chef 2nd run: https://github.com/garysassano/dummy/actions/runs/15756424292

chefless 1st run: https://github.com/garysassano/dummy/actions/runs/15756822760
chefless 2nd run: https://github.com/garysassano/dummy/actions/runs/15756930831

[LukeMathWalker]

Looking at your Dockerfile, the main suspect is cargo lambda. What does its build command do under the hood? Are you using the same options and flags in your cook command?

Since this investigation is out of scope for this repository, I'll close the issue.