Rustup to rustc 1.40.0-nightly (ac162c6ab 2019-11-09)
Rustup to rustc 1.40.0-nightly (ac162c6ab 2019-11-09)

graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,aidancully/rust,aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust,graydon/rust