Fix build

[zakkg3]

work in progress
fix build image "cant find rust compiler" when installing pedantic

some here termux/termux-app#3860

        × Building wheel for maturin (pyproject.toml) did not run successfully.
        │ exit code: 1
        ╰─> [28 lines of output]
            running bdist_wheel
            running build
            running build_py
            creating build/lib.linux-armv7l-cpython-39/maturin
            copying maturin/__init__.py -> build/lib.linux-armv7l-cpython-39/maturin
            copying maturin/__main__.py -> build/lib.linux-armv7l-cpython-39/maturin
            running egg_info
            writing maturin.egg-info/PKG-INFO
            writing dependency_links to maturin.egg-info/dependency_links.txt
            writing requirements to maturin.egg-info/requires.txt
            writing top-level names to maturin.egg-info/top_level.txt
            reading manifest file 'maturin.egg-info/SOURCES.txt'
            reading manifest template 'MANIFEST.in'
            warning: no files found matching '*.json' under directory 'src/python_interpreter'
            writing manifest file 'maturin.egg-info/SOURCES.txt'
            running build_ext
            running build_rust
            error: can't find Rust compiler

[zakkg3]

armv5 is not anymore supported