FTBFS: rust-1.29

[imjasonh]

WARN error: could not find native static library `curl`, perhaps an -L flag is missing? 🔗 pkg=rust-1.29 arch=arm64
WARN  🔗 pkg=rust-1.29 arch=arm64
WARN error: aborting due to previous error 🔗 pkg=rust-1.29 arch=arm64
WARN  🔗 pkg=rust-1.29 arch=arm64
WARN error: Could not compile `curl-sys`. 🔗 pkg=rust-1.29 arch=arm64
WARN warning: build failed, waiting for other jobs to finish... 🔗 pkg=rust-1.29 arch=arm64
WARN error: build failed 🔗 pkg=rust-1.29 arch=arm64
WARN command did not execute successfully: "/home/build/mrustc-build/run_rustc/output-1.29.0/prefix/bin/cargo" "build" "--target" "aarch64-unknown-linux-gnu" "-j" "48" "--release" "--locked" "--frozen" "--manifest-path" "/home/build/rustc-build/rustc-1.29.0-src/src/tools/cargo/Cargo.toml" "--features" "" "--message-format" "json" 🔗 pkg=rust-1.29 arch=arm64
WARN expected success, got: exit code: 101 🔗 pkg=rust-1.29 arch=arm64

https://cloudlogging.app.goo.gl/syzEWJdcRoYujh7y8

This old version of rust is only in Wolfi so we can bootstrap rust compilers up to the latest one.

Because 1.29 fails, we never build any of the other rusts; they might not work anymore either, for the same reason (or an exciting different one!)