diff --git a/.cargo/config.toml b/.cargo/config.toml
index 4580be0cc..cf4aac7ed 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -1,2 +1,2 @@
 [alias]
-xfmt = "fmt -- --config imports_granularity=Crate"
+xfmt = "fmt -- --config imports_granularity=Crate --config group_imports=One"
diff --git a/src/lib.rs b/src/lib.rs
index b1966282a..6d9b8a329 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -83,10 +83,9 @@ mod utils;
 /// The result type for `datatest-stable` tests.
 pub type Result<T> = std::result::Result<T, Box<dyn std::error::Error>>;
 
-/// A re-export of this type from the `camino` crate, since it forms part of function signatures.
-#[doc(no_inline)]
-pub use camino::Utf8Path;
-
 /// Not part of the public API, just used for macros.
 #[doc(hidden)]
 pub use self::runner::{runner, Requirements, TestFn};
+/// A re-export of this type from the `camino` crate, since it forms part of function signatures.
+#[doc(no_inline)]
+pub use camino::Utf8Path;
diff --git a/src/runner.rs b/src/runner.rs
index 92e70cb08..5fa6eb4e6 100644
--- a/src/runner.rs
+++ b/src/runner.rs
@@ -1,11 +1,10 @@
 // Copyright (c) The datatest-stable Contributors
 // SPDX-License-Identifier: MIT OR Apache-2.0
 
-use std::{path::Path, process::ExitCode};
-
 use crate::{utils, Result};
 use camino::{Utf8Path, Utf8PathBuf};
 use libtest_mimic::{Arguments, Trial};
+use std::{path::Path, process::ExitCode};
 
 #[doc(hidden)]
 pub fn runner(requirements: &[Requirements]) -> ExitCode {