* Enable a Cargo workspace for the repo
* Disable tests for proc-macro crates
* Move back to mounting source directory read-only
* Refactor test invocation to only test one crate with `--all`
This commit adds a new builder on CI for running tests in Intel's own emulator
and also adds an assertion that on this emulator no tests are skipped due to
missing CPU features by accident.
Closes#92
This commit adds CI for a few more targets:
* i686-unknown-linux-gnu
* arm-unknown-linux-gnueabihf
* armv7-unknown-linux-gnueabihf
* aarch64-unknown-linux-gnu
The CI here is structured around using a Docker container to set up a test
environment and then QEMU is used to actually execute code from these platforms.
QEMU's emulation actually makes it so we can continue to just use `cargo test`,
as processes can be spawned from QEMU like `objdump` and files can be read (for
libbacktrace). Ends up being a relatively seamless experience!
Note that a number of intrinsics were disabled on i686 because they were failing
tests, and otherwise a few ARM touch-ups were made to get tests passing.
