Update to c-gull 0.15.41. (#42)

And a newer Rust nightly. And bump `which` while here.

Cargo.toml

@@ -13,7 +13,7 @@ exclude = ["/.github", "ci"]
 keywords = ["linux"]
 
 [dependencies]
-c-gull = { version = "0.15.39", default-features = false, features = ["eyra"] }
+c-gull = { version = "0.15.41", default-features = false, features = ["eyra"] }
 
 [dev-dependencies]
 assert_cmd = "2.0.12"
@@ -27,7 +27,7 @@ rand_xorshift = "0.3.0"
 ctor = "0.2.0"
 
 # Check if rustup is installed for tests
-which = "5.0.0"
+which = "6.0.0"
 
 # Test that the core_simd crate works under mustang.
 core_simd = { git = "https://github.com/rust-lang/portable-simd" }

rust-toolchain.toml

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2024-02-14"
+channel = "nightly-2024-02-26"
 components = ["rustc", "cargo", "rust-std", "rust-src", "rustfmt"]

tests/examples.rs

@@ -41,7 +41,7 @@ fn test_example(name: &str, features: &str, stdout: &str, stderr: &str) {
 
     let mut command = Command::new("cargo");
     if which::which("rustup").is_ok() {
-        command.arg("+nightly-2024-02-14");
+        command.arg("+nightly-2024-02-26");
     }
     command.arg("run").arg("--quiet");
     if !features.is_empty() {