bump bootstrap compiler to 1.93 beta#149831

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bors merged 6 commits intorust-lang:mainfrom

BoxyUwU:boostrap_bump

Dec 20, 2025

Commits on Dec 19, 2025

replace version placeholder

BoxyUwU
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cuviper
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bump stage0

BoxyUwU
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cuviper
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Handle bootstrap cfgs

BoxyUwU
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cuviper
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update missing targets list

BoxyUwU
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cuviper
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Update compiler/rustc_lint_defs/src/builtin.rs

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cuviper
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Revert "Generate macro expansion for rust compiler crates docs"
cuviper
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