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I have a rather large project and I need to sometimes change RUSTC_BOOTSTRAP
for some reasons. This causes proc_macro2
to recompile, which in turn recompile a large portion of our dependency tree. I personally find it quite surprising that this happens as this behavior is not documented anywhere.
Cargo verbose log:
Dirty proc-macro2 v1.0.86: the env variable RUSTC_BOOTSTRAP changed
Compiling proc-macro2 v1.0.86
Offending source code:
Line 131 in aa9476b
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