# These defaults are meant for contributors to tools which build on the # compiler, but do not modify it directly. [rust] # This enables `RUSTC_LOG=debug`, avoiding confusing situations # where adding `debug!()` appears to do nothing. # However, it makes running the compiler slightly slower. debug-logging = true # This greatly increases the speed of rebuilds, especially when there are only minor changes. However, it makes the initial build slightly slower. incremental = true # Download rustc from CI instead of building it from source. # This cuts compile times by almost 60x, but means you can't modify the compiler. # Using these defaults will download the stage2 compiler (see `download-rustc` # setting) and the stage2 toolchain should therefore be used for these defaults. download-rustc = "if-unchanged" [build] # Document with the in-tree rustdoc by default, since `download-rustc` makes it quick to compile. doc-stage = 2 # Contributors working on tools will probably expect compiler docs to be generated, so they can figure out how to use the API. compiler-docs = true [llvm] # Will download LLVM from CI if available on your platform. download-ci-llvm = "if-available"