id summary reporter owner description type status priority milestone component version severity resolution keywords cc 11254 rustc-1.29.2 ken@… ken@… This patch release introduces a workaround to a miscompilation bug introduced in Rust 1.29.0. We haven’t found the root cause of the bug yet, but it showed up after a LLVM version upgrade, and it’s caused by an optimization. We disabled that optimization until the root cause is fixed. enhancement closed normal 8.4 BOOK SVN normal fixed