Typo fixes

Author: FractalFir

collector/src/compile/execute/mod.rs

@@ -156,12 +156,12 @@ fn performance_cores() -> Option<&'static String> {
     None
 }
 #[cfg(target_os = "macos")]
-// To my knoweladge, MacOS does not run on hardware with P/E cores, so this can simply always return None.
+// To my knowledge, macOS does not run on hardware with P/E cores, so this can simply always return None.
 fn performance_cores() -> Option<&'static String> {
     None
 }
 #[cfg(not(any(target_os = "windows", target_os = "macos", target_os = "linux")))]
-// I don't think rustc-perf runs on OSs other than Linux, Windows, or Mac, but I'll still leave a stub here just in case.
+// I don't think rustc-perf runs on OSes other than Linux, Windows, or Mac, but I'll still leave a stub here just in case.
 fn performance_cores() -> Option<&'static String> {
     None
 }
@@ -176,7 +176,7 @@ fn run_on_p_cores(path: &Path, cpu_list: &str) -> Command {
 }
 #[cfg(not(target_os = "linux"))]
 fn run_on_p_cores(_path: &Path, _cpu_list: &str) -> Command {
-    todo!("Can't run comamnds on the P cores on this platofmr")
+    todo!("Can't run comamnds on the P cores on this platform")
 }
 impl<'a> CargoProcess<'a> {
     pub fn incremental(mut self, incremental: bool) -> Self {