diff --git a/src/cargo/core/shell.rs b/src/cargo/core/shell.rs
index 8350f99e87b..eae8a70cc8d 100644
--- a/src/cargo/core/shell.rs
+++ b/src/cargo/core/shell.rs
@@ -379,7 +379,7 @@ impl ColorChoice {
     }
 }
 
-#[cfg(any(target_os = "linux", target_os = "macos", target_os = "freebsd"))]
+#[cfg(unix)]
 mod imp {
     use super::Shell;
     use std::mem;
@@ -408,18 +408,6 @@ mod imp {
     }
 }
 
-#[cfg(all(
-    unix,
-    not(any(target_os = "linux", target_os = "macos", target_os = "freebsd"))
-))]
-mod imp {
-    pub(super) use super::default_err_erase_line as err_erase_line;
-
-    pub fn stderr_width() -> Option<usize> {
-        None
-    }
-}
-
 #[cfg(windows)]
 mod imp {
     use std::{cmp, mem, ptr};
@@ -476,13 +464,7 @@ mod imp {
     }
 }
 
-#[cfg(any(
-    all(
-        unix,
-        not(any(target_os = "linux", target_os = "macos", target_os = "freebsd"))
-    ),
-    windows,
-))]
+#[cfg(windows)]
 fn default_err_erase_line(shell: &mut Shell) {
     if let Some(max_width) = imp::stderr_width() {
         let blank = " ".repeat(max_width);