Fixed issues on audit

.github/workflows/CI.yaml

@@ -17,13 +17,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        rust: [beta, stable, 1.63.0]
+        rust: [beta, stable, 1.66.0]
         include:
           - rust: nightly
             rustflags: --cfg thiserror_nightly_testing
     timeout-minutes: 45
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{matrix.rust}}
@@ -38,7 +38,7 @@ jobs:
     if: github.event_name != 'pull_request'
     timeout-minutes: 45
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: stable
@@ -51,7 +51,7 @@ jobs:
     if: github.event_name != 'pull_request'
     timeout-minutes: 45
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: stable

.github/workflows/audit.yml

@@ -12,7 +12,7 @@ jobs:
     name: SecurityAudit
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: taiki-e/install-action@cargo-deny
       - name: Scan for vulnerabilities
         run: cargo deny check advisories

Cargo.toml

@@ -1,12 +1,12 @@
 [package]
 name = "cardpack"
 description = "Generic Deck of Cards"
-version = "0.4.19"
+version = "0.4.20"
 authors = ["electronicpanopticon <[email protected]>"]
 repository = "https://github.com/ImperialBower/cardpack.rs.git"
 homepage = "https://github.com/ImperialBower/cardpack.rs"
 edition = "2021"
-rust-version = "1.63"
+rust-version = "1.66"
 license = "Apache-2.0"
 exclude = [".github/workflows/*", "examples/*", ".gitignore", ".travis.yml", "Cargo.lock"]
 

clippy.toml

@@ -1,4 +1,4 @@
-msrv = "1.63"
+msrv = "1.66"
 
 cognitive-complexity-threshold = 30
 

src/cards/pile.rs

@@ -3,6 +3,7 @@ use rand::thread_rng;
 use std::collections::HashMap;
 use std::collections::HashSet;
 use std::fmt;
+use std::fmt::Write;
 use std::iter::FromIterator;
 use unic_langid::LanguageIdentifier;
 
@@ -639,12 +640,11 @@ impl Pile {
 
     #[must_use]
     pub fn sig_generate_from_strings(strings: &[String]) -> String {
-        strings
-            .iter()
-            .map(|s| format!("{s} "))
-            .collect::<String>()
-            .trim_end()
-            .to_string()
+        let out = strings.iter().fold(String::new(), |mut output, s| {
+            let _ = write!(output, "{s} ");
+            output
+        });
+        out.trim_end().to_string()
     }
 }