Tokio has had to be pinned, because the 1.17 release introduces
a dependency on windows_sys, which fails to build on Windows on
Bazel.
The issue appears to be the build script of a subcrate - it is using
CARGO_MANIFEST_DIR to update the linking path so windows.lib can be
found (it's contained in that crate), but the path is set incorrectly.
dfc25285a2/crates/targets/x86_64_msvc/build.rs
One way we might be able to work around it is to add to the link path
in our own build script.
- tokio 1.0
- updated reqwest, thanks to Rumo
- other minor dep updates
the reqwest build file has been split into two, as it was awkward
to manually update the combined file, and the platform gate is now
on the target in rslib/
