- Force rebuild all consumers to catch regressions early
- Switch to cross-compiled (from amd64) bootstraps for all
architectures generated with the incoming lang/rust-bootstrap
- Update cargo-c to 0.5.2 to unbreak librav1e build
- Make use of regular MAKE_ENV/TEST_ENV in lang/rust
- Turn on RUST_BACKTRACE in lang/rust and USES=cargo to hopefully
produce more useful failure logs when something panics during
builds
Changes: https://blog.rust-lang.org/2020/01/30/Rust-1.41.0.html
Tested by: mikael, tobik
With hat: rust
Differential Revision: https://reviews.freebsd.org/D23385
83209114b8