On the nightly version `rustc 1.24.0-nightly (5165ee9e2 2017-12-22)`, I get the following error while building rustfmt: ``` error[E0063]: missing field `recovered` in initializer of `syntax::ast::Block` --> /Users/vignesh/.cargo/registry/src/github.202132.xyz-1ecc6299db9ec823/rustfmt-nightly-0.3.3/src/closures.rs:127:17 | 127 | let block = ast::Block { | ^^^^^^^^^^ missing `recovered` ```