Rust9x updates for future Rust versions

[seritools]

• verify Stablize anonymous pipe rust-lang/rust#137793
• updated home_dir impl the USERPROFILE env in there should be good enough

[seritools]

• The status/purpose of the i586-pc-windows-msvc target is unclear rust-lang/rust#137244 (i586 will be removed upstream, no problem)
• Windows: Use FILE_ALLOCATION_INFO for truncation rust-lang/rust#134722

[seritools]

• Windows: Fix error in fs::rename on Windows 1607 rust-lang/rust#137528 still effectively not supported on non-NT

[seritools]

• fallback for Windows: Use anonymous pipes in Command rust-lang/rust#142517