Magento2: Deploy stuck on compilation

[Zyles]

Preconditions (*)

1. Magento 2.3.3

Steps to reproduce (*)

1. rm -rf generated/*
2. bin/magento setup:di:compile

Expected result (*)

Finished compilation.

Actual result (*)

Stuck compilation.

Compilation was started.
Interceptors generation... 4/7 [================>-----------]  57% 20 secs 267.0 MiB

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• [x] Severity: S0 _- Affects critical data or functionality and leaves users without workaround._
• [ ] Severity: S1 _- Affects critical data or functionality and forces users to employ a workaround._
• [ ] Severity: S2 _- Affects non-critical data or functionality and forces users to employ a workaround._
• [ ] Severity: S3 _- Affects non-critical data or functionality and does not force users to employ a workaround._
• [ ] Severity: S4 _- Affects aesthetics, professional look and feel, “quality” or “usability”._

[m2-assistant[bot]]

Hi @Zyles. Thank you for your report.
To help us process this issue please make sure that you provided the following information:

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Please make sure that the issue is reproducible on the vanilla Magento instance following Steps to reproduce. To deploy vanilla Magento instance on our environment, please, add a comment to the issue:

@magento give me 2.4-develop instance - upcoming 2.4.x release

For more details, please, review the Magento Contributor Assistant documentation.

Please, add a comment to assign the issue: @magento I am working on this

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[m2-assistant[bot]]

Hi @ihor-sviziev. Thank you for working on this issue.
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[ihor-sviziev]

Hi @Zyles,
I believe some custom module might cause this issue.
Do you have this issue on the clean magento installation, without any custom modules installed? If no - try to remove them one by one and see which causing this issue.

[hostep]

If the issue is caused by a custom module, then there is potentially still a bug in Magento itself. I'm suspecting that some kind of endless loop is being triggered somehow, and the source of that could still lie in Magento's code being triggered by a specific way a custom module has been programmed.

So @Zyles: if you have found out more information and can boil the issue down to a specific module, it might still be interesting to figure out how this problem is being triggered.

[Zyles]

Solved it with using bin/magento -vvvv setup:di:compile in developer mode.

For some reason a custom module did not want to compile so had to uninstall it. Reason is unknown.