Add CI compiling rustc #17

Job	Run time
build (m68k-unknown-linux-gnu, m68k, https://github.com/rust-lang/gcc/releases/latest/download/gc...	46s
build (x86_64-unknown-linux-gnu, https://github.com/rust-lang/gcc/releases/latest/download/gcc-15...	51m 6s
	51m 52s

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