afterwards `cargo build` without any additional flag builds
libhermit-rs for x86_64

This reverts commit 86027bbf.

This reverts commit b29355c4.

102: remove compiler warnings r=jbreitbart a=stlankes

- using of mem::transmute to reinterpret a pointer

Co-authored-by: Stefan Lankes <slankes@eonerc.rwth-aachen.de>

101: usage of the latest version of the crate x86 r=stlankes a=stlankes



Co-authored-by: Stefan Lankes <slankes@eonerc.rwth-aachen.de>

- using of mem::transmute to reinterpret a pointer

- doesn't work with Bors

* add syscall to set the seed of the pseudo random number generator
* use function to create cryptographicly secure random numbers
* remove obsolete GitHub Action workflow "build"
* add comments to explain the functions

Assert that the boot_info argument is valid by comparing the magic_number field.

Fixed some warnings about unused code in test mode.

Add hint that prints the command to manually run the unit-test.
This might be useful for debugging, since currently there is no way to specify a timeout

This prevents CI failure for the unittests running on hermit - which are currently broken.
A warning is still printed on the commandline informing the user that the test is skipped, however this is easy to miss.

- Also add a flag to test runner to pass a custom uhyve path
- Change time measurement to use perf_counter. This function is available since python 3.3 and also gives the highest possible accuracy on each platform.
- together with changing the subprocess keywords used, this changed the minimum python version required to 3.6, which happens to be the version that is default on travis for bionic runners.

Controls the number of cpu cores the test is executed with on uhyve/qemu.

This is a basic example.