Auto merge of #7047 - jeremystucki:needless-lifetimes, r=Eh2406

Remove needless lifetimes

Author: bors

src/cargo/ops/common_for_install_and_uninstall.rs

@@ -545,7 +545,7 @@ pub fn resolve_root(flag: Option<&str>, config: &Config) -> CargoResult<Filesyst
 }
 
 /// Determines the `PathSource` from a `SourceId`.
-pub fn path_source<'a>(source_id: SourceId, config: &'a Config) -> CargoResult<PathSource<'a>> {
+pub fn path_source(source_id: SourceId, config: &Config) -> CargoResult<PathSource<'_>> {
     let path = source_id
         .url()
         .to_file_path()

src/cargo/util/config.rs

@@ -872,7 +872,7 @@ impl Config {
     /// This lock is global per-process and can be acquired recursively. An RAII
     /// structure is returned to release the lock, and if this process
     /// abnormally terminates the lock is also released.
-    pub fn acquire_package_cache_lock<'a>(&'a self) -> CargoResult<PackageCacheLock<'a>> {
+    pub fn acquire_package_cache_lock(&self) -> CargoResult<PackageCacheLock<'_>> {
         let mut slot = self.package_cache_lock.borrow_mut();
         match *slot {
             // We've already acquired the lock in this process, so simply bump