deps(rustix): enable use-libc to route syscalls through glibc

Without use-libc, rustix uses direct inline assembly syscalls,
bypassing glibc entirely. On a glibc-based system like Debian,
this can break LD_PRELOAD interposition, sanitizers, and miss
glibc optimizations like the getpid() cache.

Author: sylvestre

Cargo.toml

@@ -450,9 +450,9 @@ rstest = "0.26.0"
 rstest_reuse = "0.7.0"
 rustc-hash = "2.1.1"
 rust-ini = "0.21.0"
-# binary name of coreutils can be hijacked by overriding getauxval via LD_PRELOAD
-# So we use param and avoid libc backend
-rustix = { version = "1.1.4", features = ["param"] }
+# param: binary name of coreutils can be hijacked by overriding getauxval via LD_PRELOAD
+# use-libc: route syscalls through glibc (not direct asm) for LD_PRELOAD/sanitizer compat
+rustix = { version = "1.1.4", features = ["param", "use-libc"] }
 same-file = "1.0.6"
 self_cell = "1.0.4"
 selinux = "0.6"

src/uu/tail/Cargo.toml

@@ -4,7 +4,6 @@ name = "uu_tail"
 description = "tail ~ (uutils) display the last lines of input"
 repository = "https://github.com/uutils/coreutils/tree/main/src/uu/tail"
 version.workspace = true
-authors.workspace = true
 license.workspace = true
 homepage.workspace = true
 keywords.workspace = true

src/uu/tty/Cargo.toml

@@ -3,7 +3,6 @@ name = "uu_tty"
 description = "tty ~ (uutils) display the name of the terminal connected to standard input"
 repository = "https://github.com/uutils/coreutils/tree/main/src/uu/tty"
 version.workspace = true
-authors.workspace = true
 license.workspace = true
 homepage.workspace = true
 keywords.workspace = true

src/uucore/src/lib/features/i18n/datetime.rs

@@ -178,7 +178,6 @@ pub fn get_locale_months() -> Option<&'static [Vec<u8>; 12]> {
     target_os = "dragonfly"
 ))]
 fn get_locale_months_inner() -> Option<[Vec<u8>; 12]> {
-    use nix::libc;
     use std::ffi::CStr;
 
     let abmon_items: [libc::nl_item; 12] = [