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authorMara Bos <m-ou.se@m-ou.se>2021-02-04 21:10:34 +0100
committerGitHub <noreply@github.com>2021-02-04 21:10:34 +0100
commitc5990dd8ad83fa1dccbc105102bceca0728977c3 (patch)
tree27ba476a0bf0c21a66ed92779ad5855ea4faad6c /compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
parent5b0acfd049ca205a5a43adde9882f59a97107afd (diff)
parentb6b897b02c080759ec365d440d5df7cf93426657 (diff)
downloadrust-c5990dd8ad83fa1dccbc105102bceca0728977c3.tar.gz
rust-c5990dd8ad83fa1dccbc105102bceca0728977c3.zip
Rollup merge of #81556 - nikomatsakis:forbidden-lint-groups-lint, r=pnkfelix
introduce future-compatibility warning for forbidden lint groups

We used to ignore `forbid(group)` scenarios completely. This changed in #78864, but that led to a number of regressions (#80988, #81218).

This PR introduces a future compatibility warning for the case where a group is forbidden but then an individual lint within that group is allowed. We now issue a FCW when we see the "allow", but permit it to take effect.

r? ``@Mark-Simulacrum``
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