Fix clippy warnings

kurobako_problems/src/sigopt.rs

@@ -6,6 +6,7 @@
 //! If you want to use an unimplemented function, please create an issue or PR.
 //!
 //! [sigopt/evalset]: https://github.com/sigopt/evalset
+#![allow(clippy::format_push_string)]
 use self::functions::TestFunction;
 use kurobako_core::domain;
 use kurobako_core::problem::{

src/markdown.rs

@@ -29,7 +29,7 @@ impl<'a, W: Write> MarkdownWriter<'a, W> {
     }
 
     pub fn inner_mut(&mut self) -> &mut W {
-        &mut self.writer
+        self.writer
     }
 
     pub fn newline(&mut self) -> Result<()> {

src/plot/curve.rs

@@ -1,4 +1,5 @@
 //! `kurobako plot curve` command.
+#![allow(clippy::format_push_string)]
 use super::{execute_gnuplot, normalize_filename};
 use crate::record::{ProblemRecord, StudyRecord};
 use indicatif::{ProgressBar, ProgressStyle};

src/plot/pareto_front.rs

@@ -1,4 +1,5 @@
 //! `kurobako plot pareto-front` command.
+#![allow(clippy::format_push_string)]
 use super::{execute_gnuplot, normalize_filename};
 use crate::record::StudyRecord;
 use indicatif::{ProgressBar, ProgressStyle};

src/plot/slice.rs

@@ -1,4 +1,5 @@
 //! `kurobako plot slice` command.
+#![allow(clippy::format_push_string)]
 use super::{execute_gnuplot, normalize_filename};
 use crate::record::StudyRecord;
 use indicatif::{ProgressBar, ProgressStyle};