Auto merge of #24603 - servo:jdm-patch-36, r=SimonSapin
Auto merge of #24603 - servo:jdm-patch-36, r=SimonSapin

Install rustc-dev for nightly rust toolchain

Fixes #24579.

KiChjang/servo,KiChjang/servo,splav/servo,KiChjang/servo,saneyuki/servo,DominoTree/servo,KiChjang/servo,splav/servo,saneyuki/servo,splav/servo,splav/servo,KiChjang/servo,saneyuki/servo,DominoTree/servo,splav/servo,DominoTree/servo,DominoTree/servo,DominoTree/servo,KiChjang/servo,DominoTree/servo,DominoTree/servo,saneyuki/servo,saneyuki/servo,KiChjang/servo,KiChjang/servo,saneyuki/servo,saneyuki/servo,splav/servo,DominoTree/servo,splav/servo,splav/servo,KiChjang/servo,saneyuki/servo,saneyuki/servo,KiChjang/servo,splav/servo,saneyuki/servo,DominoTree/servo,splav/servo,DominoTree/servo