Merging debian version 1.65.0+dfsg1-2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

11 files changed, 234 insertions, 147 deletions

diff --git a/vendor/crossbeam-epoch/.cargo-checksum.json b/vendor/crossbeam-epoch/.cargo-checksum.json
index beb3eb1dd..21e5f8500 100644
--- a/vendor/crossbeam-epoch/.cargo-checksum.json
+++ b/vendor/crossbeam-epoch/.cargo-checksum.json
@@ -1 +1 @@
-{"files":{"CHANGELOG.md":"709c5824af9170953e84db2552f4e8ae84d115314b59b768c62bdcd13c157e82","Cargo.lock":"cd480e52977de5a2e4182c1620fb5da9134fe82bfc6f696905ec0a1e1bd3d039","Cargo.toml":"1506e2615575ffc45c05dbcc248687740f04de5732b30bdb2d828ef4c4ae809b","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"5734ed989dfca1f625b40281ee9f4530f91b2411ec01cb748223e7eb87e201ab","README.md":"f946b25082979595d3851d90c4e76424be921a779e88e982f8455d44d46057ec","benches/defer.rs":"c330b704d96b2ad1aed29f72c37a99da534adef8cb06a3976d5f93bf567abb20","benches/flush.rs":"0389ac6c473632f0e93c962f223404cc360257f6699b4ec90b9b3be16bb6d74f","benches/pin.rs":"2f649a5153745c7930efdb32a52f9dc522f7b8cf548a251c5e2c82ee25dc3fff","build.rs":"aec5ae4d47d6ab1f281db6b7f7ec80ab3cc05bd0c20059643aee4446fcc0fcbf","examples/sanitize.rs":"a39d1635fa61e643e59192d7a63becc97ff81f03c1f4e03d38cedefb1525026a","no_atomic.rs":"916ed15218bb7b75a4e0d432430e7134efd27ca43ca8a8766e0c90e89febb602","src/atomic.rs":"6452c856fd808e99c8fc09fe7b563ce44342f9992b38c65613933c7c3fc5d84c","src/collector.rs":"e2d9780d8707e49360b3c33f2f829f29f70e6929307e65e23449b8ba6def6358","src/default.rs":"9c4d3951981d47efc748674d64b22eff27ecb2e3ef16369aa423592740ce6033","src/deferred.rs":"8ced786536d8d688381a8aa0b61e6e4d5e4fdd88e892cf82c0c5731e4801aa60","src/epoch.rs":"d31e66d8fe62299928e25867336d96391b26a4fe890a1cae0885dfcf36d6835b","src/guard.rs":"55c56ca1b2fbc067ae21108f0f7de4be91e5b41df2492055b635ed436782dd52","src/internal.rs":"67a6811b8c58e1152fd1dc17e389884025a0d99d79ab03dee26efcd0d6896690","src/lib.rs":"1c0765413dd66d4655e6417a69829ac5c2f4d504f66f77a87fe9c230c05e039d","src/sync/list.rs":"10aa4c59845ab9ff1d8bcb6f594b70bbe23c320fa7a2b125fdf85df88b9d61e2","src/sync/mod.rs":"cbc6334460d73761c3dea7f99ed2ccbf267d5da3bc76c812e94f85c9f4565c6a","src/sync/queue.rs":"06173b2255677d0d39178ceb49876fda2878f491e907c595eb65643dbb43c9ba","tests/loom.rs":"db772f4478966de6ec98774ca4093171dc942da635822a0d2d3257d31188cb9b"},"package":"07db9d94cbd326813772c968ccd25999e5f8ae22f4f8d1b11effa37ef6ce281d"}
\ No newline at end of file
+{"files":{"CHANGELOG.md":"4a701ed7814fbde912aa7a1d15c95ed6b7ba3cd661c64f92c17b3b8bf67ecf5e","Cargo.lock":"018d954edeff6a45c6af01735239b639a83eed8258176481c6e9dae366085760","Cargo.toml":"4c1451a736e2ec0b31dfe6080140b69fdc614a0606db876308f1badf932dc1b9","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"5734ed989dfca1f625b40281ee9f4530f91b2411ec01cb748223e7eb87e201ab","README.md":"d67d0cf57751a019707dd95785345ee181a10ea80237789bc3c19bf28c0d45ca","benches/defer.rs":"c330b704d96b2ad1aed29f72c37a99da534adef8cb06a3976d5f93bf567abb20","benches/flush.rs":"0389ac6c473632f0e93c962f223404cc360257f6699b4ec90b9b3be16bb6d74f","benches/pin.rs":"2f649a5153745c7930efdb32a52f9dc522f7b8cf548a251c5e2c82ee25dc3fff","build.rs":"89e236e4e22dd748720129dcd02edfc08adccf708a7f0b03e41780e5bafb39cc","examples/sanitize.rs":"a39d1635fa61e643e59192d7a63becc97ff81f03c1f4e03d38cedefb1525026a","no_atomic.rs":"916ed15218bb7b75a4e0d432430e7134efd27ca43ca8a8766e0c90e89febb602","src/atomic.rs":"1bd4275c1411852024533e8a70959dfedf72029e3253544d1fbb0cc18b6fd519","src/collector.rs":"29e5911f61510247659b0090517bd1a38d11e1ed86e35811603cb599962d9a58","src/default.rs":"9c4d3951981d47efc748674d64b22eff27ecb2e3ef16369aa423592740ce6033","src/deferred.rs":"0c87df5797212778edd3c2d5fcf0cc04e8b9ed100261ecf9522f74a90804a3d5","src/epoch.rs":"d31e66d8fe62299928e25867336d96391b26a4fe890a1cae0885dfcf36d6835b","src/guard.rs":"f4439909152d38c03b6dfb6eeba6c9f07c39962187d461c92a492c27c258670b","src/internal.rs":"ac40ce276f0ed3dfd561926b78f775592eabb90790e177edde41fe50c13b8256","src/lib.rs":"1c0765413dd66d4655e6417a69829ac5c2f4d504f66f77a87fe9c230c05e039d","src/sync/list.rs":"10aa4c59845ab9ff1d8bcb6f594b70bbe23c320fa7a2b125fdf85df88b9d61e2","src/sync/mod.rs":"cbc6334460d73761c3dea7f99ed2ccbf267d5da3bc76c812e94f85c9f4565c6a","src/sync/queue.rs":"06173b2255677d0d39178ceb49876fda2878f491e907c595eb65643dbb43c9ba","tests/loom.rs":"db772f4478966de6ec98774ca4093171dc942da635822a0d2d3257d31188cb9b"},"package":"045ebe27666471bb549370b4b0b3e51b07f56325befa4284db65fc89c02511b1"}
\ No newline at end of file
diff --git a/vendor/crossbeam-epoch/CHANGELOG.md b/vendor/crossbeam-epoch/CHANGELOG.md
index 2f70edba7..b05a52dfc 100644
--- a/vendor/crossbeam-epoch/CHANGELOG.md
+++ b/vendor/crossbeam-epoch/CHANGELOG.md
@@ -1,3 +1,9 @@
+# Version 0.9.10
+
+- Bump the minimum supported Rust version to 1.38. (#877)
+- Mitigate the risk of segmentation faults in buggy downstream implementations. (#879)
+- Add `{Atomic, Shared}::try_into_owned` (#701)
+
 # Version 0.9.9
 
 - Replace lazy_static with once_cell. (#817)
diff --git a/vendor/crossbeam-epoch/Cargo.lock b/vendor/crossbeam-epoch/Cargo.lock
index edb0c7378..726980a93 100644
--- a/vendor/crossbeam-epoch/Cargo.lock
+++ b/vendor/crossbeam-epoch/Cargo.lock
@@ -31,7 +31,7 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "crossbeam-epoch"
-version = "0.9.9"
+version = "0.9.10"
 dependencies = [
  "autocfg",
  "cfg-if",
@@ -46,9 +46,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.9"
+version = "0.8.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ff1f980957787286a554052d03c7aee98d99cc32e09f6d45f0a814133c87978"
+checksum = "51887d4adc7b564537b15adcfb307936f8075dfcd5f00dde9a9f1d29383682bc"
 dependencies = [
  "cfg-if",
  "loom",
@@ -57,15 +57,15 @@ dependencies = [
 
 [[package]]
 name = "generator"
-version = "0.7.0"
+version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c1d9279ca822891c1a4dae06d185612cf8fc6acfe5dff37781b41297811b12ee"
+checksum = "cc184cace1cea8335047a471cc1da80f18acf8a76f3bab2028d499e328948ec7"
 dependencies = [
  "cc",
  "libc",
  "log",
  "rustversion",
- "winapi",
+ "windows",
 ]
 
 [[package]]
@@ -133,9 +133,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.12.0"
+version = "1.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7709cef83f0c1f58f666e746a08b21e0085f7440fa6a29cc194d68aac97a4225"
+checksum = "18a6dbe30758c9f83eb00cbea4ac95966305f5a7772f3f42ebfc7fc7eddbd8e1"
 
 [[package]]
 name = "pin-project-lite"
@@ -151,18 +151,18 @@ checksum = "eb9f9e6e233e5c4a35559a617bf40a4ec447db2e84c20b55a6f83167b7e57872"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.39"
+version = "1.0.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c54b25569025b7fc9651de43004ae593a75ad88543b17178aa5e1b9c4f15f56f"
+checksum = "dd96a1e8ed2596c337f8eae5f24924ec83f5ad5ab21ea8e455d3566c69fbcaf7"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.18"
+version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1feb54ed693b93a84e14094943b84b7c4eae204c512b7ccb95ab0c66d278ad1"
+checksum = "3bcdf212e9776fbcb2d23ab029360416bb1706b1aea2d1a5ba002727cbcab804"
 dependencies = [
  "proc-macro2",
 ]
@@ -199,9 +199,9 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.5.6"
+version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d83f127d94bdbcda4c8cc2e50f6f84f4b611f69c902699ca385a39c3a75f9ff1"
+checksum = "4c4eb3267174b8c6c2f654116623910a0fef09c4753f8dd83db29c48a0df988b"
 dependencies = [
  "regex-syntax",
 ]
@@ -217,15 +217,15 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.26"
+version = "0.6.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49b3de9ec5dc0a3417da371aab17d729997c15010e7fd24ff707773a33bddb64"
+checksum = "a3f87b73ce11b1619a3c6332f45341e0047173771e8b8b73f87bfeefb7b56244"
 
 [[package]]
 name = "rustversion"
-version = "1.0.6"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f2cc38e8fa666e2de3c4aba7edeb5ffc5246c1c2ed0e3d17e560aeeba736b23f"
+checksum = "24c8ad4f0c00e1eb5bc7614d236a7f1300e3dbd76b68cac8e06fb00b015ad8d8"
 
 [[package]]
 name = "scoped-tls"
@@ -250,15 +250,15 @@ dependencies = [
 
 [[package]]
 name = "smallvec"
-version = "1.8.0"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f2dd574626839106c320a323308629dcb1acfc96e32a8cba364ddc61ac23ee83"
+checksum = "2fd0db749597d91ff862fd1d55ea87f7855a744a8425a64695b6fca237d1dad1"
 
 [[package]]
 name = "syn"
-version = "1.0.96"
+version = "1.0.98"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0748dd251e24453cb8717f0354206b91557e4ec8703673a4b30208f2abaf1ebf"
+checksum = "c50aef8a904de4c23c788f104b7dddc7d6f79c647c7c8ce4cc8f73eb0ca773dd"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -288,9 +288,9 @@ dependencies = [
 
 [[package]]
 name = "tracing-attributes"
-version = "0.1.21"
+version = "0.1.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cc6b8ad3567499f98a1db7a752b07a7c8c7c7c34c332ec00effb2b0027974b7c"
+checksum = "11c75893af559bc8e10716548bdef5cb2b983f8e637db9d0e15126b61b484ee2"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -299,9 +299,9 @@ dependencies = [
 
 [[package]]
 name = "tracing-core"
-version = "0.1.27"
+version = "0.1.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7709595b8878a4965ce5e87ebf880a7d39c9afc6837721b21a5a816a8117d921"
+checksum = "7b7358be39f2f274f322d2aaed611acc57f382e8eb1e5b48cb9ae30933495ce7"
 dependencies = [
  "once_cell",
  "valuable",
@@ -320,13 +320,13 @@ dependencies = [
 
 [[package]]
 name = "tracing-subscriber"
-version = "0.3.11"
+version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4bc28f93baff38037f64e6f43d34cfa1605f27a49c34e8a04c5e78b0babf2596"
+checksum = "60db860322da191b40952ad9affe65ea23e7dd6a5c442c2c42865810c6ab8e6b"
 dependencies = [
  "ansi_term",
- "lazy_static",
  "matchers",
+ "once_cell",
  "regex",
  "sharded-slab",
  "smallvec",
@@ -338,9 +338,9 @@ dependencies = [
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.1"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5bd2fe26506023ed7b5e1e315add59d6f584c621d037f9368fea9cfb988f368c"
+checksum = "15c61ba63f9235225a22310255a29b806b907c9b8c964bcbd0a2c70f3f2deea7"
 
 [[package]]
 name = "valuable"
@@ -375,3 +375,46 @@ name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
+[[package]]
+name = "windows"
+version = "0.32.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fbedf6db9096bc2364adce0ae0aa636dcd89f3c3f2cd67947062aaf0ca2a10ec"
+dependencies = [
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.32.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d8e92753b1c443191654ec532f14c199742964a061be25d77d7a96f09db20bf5"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.32.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a711c68811799e017b6038e0922cb27a5e2f43a2ddb609fe0b6f3eeda9de615"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.32.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "146c11bb1a02615db74680b32a68e2d61f553cc24c4eb5b4ca10311740e44172"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.32.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c912b12f7454c6620635bbff3450962753834be2a594819bd5e945af18ec64bc"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.32.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "504a2476202769977a040c6364301a3f65d0cc9e3fb08600b2bda150a0488316"
diff --git a/vendor/crossbeam-epoch/Cargo.toml b/vendor/crossbeam-epoch/Cargo.toml
index 9d68295e6..1551c3c2c 100644
--- a/vendor/crossbeam-epoch/Cargo.toml
+++ b/vendor/crossbeam-epoch/Cargo.toml
@@ -11,9 +11,9 @@
 
 [package]
 edition = "2018"
-rust-version = "1.36"
+rust-version = "1.38"
 name = "crossbeam-epoch"
-version = "0.9.9"
+version = "0.9.10"
 description = "Epoch-based garbage collection"
 homepage = "https://github.com/crossbeam-rs/crossbeam/tree/master/crossbeam-epoch"
 readme = "README.md"
diff --git a/vendor/crossbeam-epoch/README.md b/vendor/crossbeam-epoch/README.md
index eb33badff..2840ea792 100644
--- a/vendor/crossbeam-epoch/README.md
+++ b/vendor/crossbeam-epoch/README.md
@@ -8,7 +8,7 @@ https://github.com/crossbeam-rs/crossbeam/tree/master/crossbeam-epoch#license)
 https://crates.io/crates/crossbeam-epoch)
 [![Documentation](https://docs.rs/crossbeam-epoch/badge.svg)](
 https://docs.rs/crossbeam-epoch)
-[![Rust 1.36+](https://img.shields.io/badge/rust-1.36+-lightgray.svg)](
+[![Rust 1.38+](https://img.shields.io/badge/rust-1.38+-lightgray.svg)](
 https://www.rust-lang.org)
 [![chat](https://img.shields.io/discord/569610676205781012.svg?logo=discord)](https://discord.com/invite/JXYwgWZ)
 
@@ -35,7 +35,7 @@ crossbeam-epoch = "0.9"
 
 Crossbeam Epoch supports stable Rust releases going back at least six months,
 and every time the minimum supported Rust version is increased, a new minor
-version is released. Currently, the minimum supported Rust version is 1.36.
+version is released. Currently, the minimum supported Rust version is 1.38.
 
 ## License
 
diff --git a/vendor/crossbeam-epoch/build.rs b/vendor/crossbeam-epoch/build.rs
index bba54d999..b3bd15a5a 100644
--- a/vendor/crossbeam-epoch/build.rs
+++ b/vendor/crossbeam-epoch/build.rs
@@ -41,17 +41,15 @@ fn main() {
         }
     };
 
-    // Note that this is `no_*`, not `has_*`. This allows treating
-    // `cfg(target_has_atomic = "ptr")` as true when the build script doesn't
-    // run. This is needed for compatibility with non-cargo build systems that
-    // don't run the build script.
+    // Note that this is `no_`*, not `has_*`. This allows treating as the latest
+    // stable rustc is used when the build script doesn't run. This is useful
+    // for non-cargo build systems that don't run the build script.
     if NO_ATOMIC_CAS.contains(&&*target) {
         println!("cargo:rustc-cfg=crossbeam_no_atomic_cas");
     }
 
-    if cfg.probe_rustc_version(1, 61) {
-        // TODO: invert cfg once Rust 1.61 became stable.
-        println!("cargo:rustc-cfg=crossbeam_const_fn_trait_bound");
+    if !cfg.probe_rustc_version(1, 61) {
+        println!("cargo:rustc-cfg=crossbeam_no_const_fn_trait_bound");
     }
 
     println!("cargo:rerun-if-changed=no_atomic.rs");
diff --git a/vendor/crossbeam-epoch/src/atomic.rs b/vendor/crossbeam-epoch/src/atomic.rs
index b0b6a68e7..19bab4729 100644
--- a/vendor/crossbeam-epoch/src/atomic.rs
+++ b/vendor/crossbeam-epoch/src/atomic.rs
@@ -252,7 +252,7 @@ impl<T> Pointable for [MaybeUninit<T>] {
         let size = mem::size_of::<Array<T>>() + mem::size_of::<MaybeUninit<T>>() * len;
         let align = mem::align_of::<Array<T>>();
         let layout = alloc::Layout::from_size_align(size, align).unwrap();
-        let ptr = alloc::alloc(layout) as *mut Array<T>;
+        let ptr = alloc::alloc(layout).cast::<Array<T>>();
         if ptr.is_null() {
             alloc::handle_alloc_error(layout);
         }
@@ -305,6 +305,7 @@ impl<T> Atomic<T> {
     /// use crossbeam_epoch::Atomic;
     ///
     /// let a = Atomic::new(1234);
+    /// # unsafe { drop(a.into_owned()); } // avoid leak
     /// ```
     pub fn new(init: T) -> Atomic<T> {
         Self::init(init)
@@ -320,6 +321,7 @@ impl<T: ?Sized + Pointable> Atomic<T> {
     /// use crossbeam_epoch::Atomic;
     ///
     /// let a = Atomic::<i32>::init(1234);
+    /// # unsafe { drop(a.into_owned()); } // avoid leak
     /// ```
     pub fn init(init: T::Init) -> Atomic<T> {
         Self::from(Owned::init(init))
@@ -342,7 +344,7 @@ impl<T: ?Sized + Pointable> Atomic<T> {
     ///
     /// let a = Atomic::<i32>::null();
     /// ```
-    #[cfg(all(crossbeam_const_fn_trait_bound, not(crossbeam_loom)))]
+    #[cfg(all(not(crossbeam_no_const_fn_trait_bound), not(crossbeam_loom)))]
     pub const fn null() -> Atomic<T> {
         Self {
             data: AtomicUsize::new(0),
@@ -351,7 +353,7 @@ impl<T: ?Sized + Pointable> Atomic<T> {
     }
 
     /// Returns a new null atomic pointer.
-    #[cfg(not(all(crossbeam_const_fn_trait_bound, not(crossbeam_loom))))]
+    #[cfg(not(all(not(crossbeam_no_const_fn_trait_bound), not(crossbeam_loom))))]
     pub fn null() -> Atomic<T> {
         Self {
             data: AtomicUsize::new(0),
@@ -373,6 +375,7 @@ impl<T: ?Sized + Pointable> Atomic<T> {
     /// let a = Atomic::new(1234);
     /// let guard = &epoch::pin();
     /// let p = a.load(SeqCst, guard);
+    /// # unsafe { drop(a.into_owned()); } // avoid leak
     /// ```
     pub fn load<'g>(&self, ord: Ordering, _: &'g Guard) -> Shared<'g, T> {
         unsafe { Shared::from_usize(self.data.load(ord)) }
@@ -398,6 +401,7 @@ impl<T: ?Sized + Pointable> Atomic<T> {
     /// let a = Atomic::new(1234);
     /// let guard = &epoch::pin();
     /// let p = a.load_consume(guard);
+    /// # unsafe { drop(a.into_owned()); } // avoid leak
     /// ```
     pub fn load_consume<'g>(&self, _: &'g Guard) -> Shared<'g, T> {
         unsafe { Shared::from_usize(self.data.load_consume()) }
@@ -415,8 +419,10 @@ impl<T: ?Sized + Pointable> Atomic<T> {
     /// use std::sync::atomic::Ordering::SeqCst;
     ///
     /// let a = Atomic::new(1234);
+    /// # unsafe { drop(a.load(SeqCst, &crossbeam_epoch::pin()).into_owned()); } // avoid leak
     /// a.store(Shared::null(), SeqCst);
     /// a.store(Owned::new(1234), SeqCst);
+    /// # unsafe { drop(a.into_owned()); } // avoid leak
     /// ```
     pub fn store<P: Pointer<T>>(&self, new: P, ord: Ordering) {
         self.data.store(new.into_usize(), ord);
@@ -437,6 +443,7 @@ impl<T: ?Sized + Pointable> Atomic<T> {
     /// let a = Atomic::new(1234);
     /// let guard = &epoch::pin();
     /// let p = a.swap(Shared::null(), SeqCst, guard);
+    /// # unsafe { drop(p.into_owned()); } // avoid leak
     /// ```
     pub fn swap<'g, P: Pointer<T>>(&self, new: P, ord: Ordering, _: &'g Guard) -> Shared<'g, T> {
         unsafe { Shared::from_usize(self.data.swap(new.into_usize(), ord)) }
@@ -471,6 +478,7 @@ impl<T: ?Sized + Pointable> Atomic<T> {
     /// let curr = a.load(SeqCst, guard);
     /// let res1 = a.compare_exchange(curr, Shared::null(), SeqCst, SeqCst, guard);
     /// let res2 = a.compare_exchange(curr, Owned::new(5678), SeqCst, SeqCst, guard);
+    /// # unsafe { drop(curr.into_owned()); } // avoid leak
     /// ```
     pub fn compare_exchange<'g, P>(
         &self,
@@ -526,6 +534,7 @@ impl<T: ?Sized + Pointable> Atomic<T> {
     ///
     /// let mut new = Owned::new(5678);
     /// let mut ptr = a.load(SeqCst, guard);
+    /// # unsafe { drop(a.load(SeqCst, guard).into_owned()); } // avoid leak
     /// loop {
     ///     match a.compare_exchange_weak(ptr, new, SeqCst, SeqCst, guard) {
     ///         Ok(p) => {
@@ -546,6 +555,7 @@ impl<T: ?Sized + Pointable> Atomic<T> {
     ///         Err(err) => curr = err.current,
     ///     }
     /// }
+    /// # unsafe { drop(curr.into_owned()); } // avoid leak
     /// ```
     pub fn compare_exchange_weak<'g, P>(
         &self,
@@ -608,6 +618,7 @@ impl<T: ?Sized + Pointable> Atomic<T> {
     ///
     /// let res2 = a.fetch_update(SeqCst, SeqCst, guard, |x| None);
     /// assert!(res2.is_err());
+    /// # unsafe { drop(a.into_owned()); } // avoid leak
     /// ```
     pub fn fetch_update<'g, F>(
         &self,
@@ -666,6 +677,7 @@ impl<T: ?Sized + Pointable> Atomic<T> {
     /// let curr = a.load(SeqCst, guard);
     /// let res1 = a.compare_and_set(curr, Shared::null(), SeqCst, guard);
     /// let res2 = a.compare_and_set(curr, Owned::new(5678), SeqCst, guard);
+    /// # unsafe { drop(curr.into_owned()); } // avoid leak
     /// ```
     // TODO: remove in the next major version.
     #[allow(deprecated)]
@@ -723,6 +735,7 @@ impl<T: ?Sized + Pointable> Atomic<T> {
     ///
     /// let mut new = Owned::new(5678);
     /// let mut ptr = a.load(SeqCst, guard);
+    /// # unsafe { drop(a.load(SeqCst, guard).into_owned()); } // avoid leak
     /// loop {
     ///     match a.compare_and_set_weak(ptr, new, SeqCst, guard) {
     ///         Ok(p) => {
@@ -743,6 +756,7 @@ impl<T: ?Sized + Pointable> Atomic<T> {
     ///         Err(err) => curr = err.current,
     ///     }
     /// }
+    /// # unsafe { drop(curr.into_owned()); } // avoid leak
     /// ```
     // TODO: remove in the next major version.
     #[allow(deprecated)]
@@ -877,6 +891,52 @@ impl<T: ?Sized + Pointable> Atomic<T> {
             Owned::from_usize(self.data.into_inner())
         }
     }
+
+    /// Takes ownership of the pointee if it is non-null.
+    ///
+    /// This consumes the atomic and converts it into [`Owned`]. As [`Atomic`] doesn't have a
+    /// destructor and doesn't drop the pointee while [`Owned`] does, this is suitable for
+    /// destructors of data structures.
+    ///
+    /// # Safety
+    ///
+    /// This method may be called only if the pointer is valid and nobody else is holding a
+    /// reference to the same object, or the pointer is null.
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// # use std::mem;
+    /// # use crossbeam_epoch::Atomic;
+    /// struct DataStructure {
+    ///     ptr: Atomic<usize>,
+    /// }
+    ///
+    /// impl Drop for DataStructure {
+    ///     fn drop(&mut self) {
+    ///         // By now the DataStructure lives only in our thread and we are sure we don't hold
+    ///         // any Shared or & to it ourselves, but it may be null, so we have to be careful.
+    ///         let old = mem::replace(&mut self.ptr, Atomic::null());
+    ///         unsafe {
+    ///             if let Some(x) = old.try_into_owned() {
+    ///                 drop(x)
+    ///             }
+    ///         }
+    ///     }
+    /// }
+    /// ```
+    pub unsafe fn try_into_owned(self) -> Option<Owned<T>> {
+        // FIXME: See self.into_owned()
+        #[cfg(crossbeam_loom)]
+        let data = self.data.unsync_load();
+        #[cfg(not(crossbeam_loom))]
+        let data = self.data.into_inner();
+        if decompose_tag::<T>(data).0 == 0 {
+            None
+        } else {
+            Some(Owned::from_usize(data))
+        }
+    }
 }
 
 impl<T: ?Sized + Pointable> fmt::Debug for Atomic<T> {
@@ -925,6 +985,7 @@ impl<T: ?Sized + Pointable> From<Owned<T>> for Atomic<T> {
     /// use crossbeam_epoch::{Atomic, Owned};
     ///
     /// let a = Atomic::<i32>::from(Owned::new(1234));
+    /// # unsafe { drop(a.into_owned()); } // avoid leak
     /// ```
     fn from(owned: Owned<T>) -> Self {
         let data = owned.data;
@@ -1108,6 +1169,7 @@ impl<T: ?Sized + Pointable> Owned<T> {
     /// let o = Owned::new(1234);
     /// let guard = &epoch::pin();
     /// let p = o.into_shared(guard);
+    /// # unsafe { drop(p.into_owned()); } // avoid leak
     /// ```
     #[allow(clippy::needless_lifetimes)]
     pub fn into_shared<'g>(self, _: &'g Guard) -> Shared<'g, T> {
@@ -1291,6 +1353,7 @@ impl<'g, T> Shared<'g, T> {
     /// let guard = &epoch::pin();
     /// let p = a.load(SeqCst, guard);
     /// assert_eq!(p.as_raw(), raw);
+    /// # unsafe { drop(a.into_owned()); } // avoid leak
     /// ```
     pub fn as_raw(&self) -> *const T {
         let (raw, _) = decompose_tag::<T>(self.data);
@@ -1329,6 +1392,7 @@ impl<'g, T: ?Sized + Pointable> Shared<'g, T> {
     /// assert!(a.load(SeqCst, guard).is_null());
     /// a.store(Owned::new(1234), SeqCst);
     /// assert!(!a.load(SeqCst, guard).is_null());
+    /// # unsafe { drop(a.into_owned()); } // avoid leak
     /// ```
     pub fn is_null(&self) -> bool {
         let (raw, _) = decompose_tag::<T>(self.data);
@@ -1365,6 +1429,7 @@ impl<'g, T: ?Sized + Pointable> Shared<'g, T> {
     /// unsafe {
     ///     assert_eq!(p.deref(), &1234);
     /// }
+    /// # unsafe { drop(a.into_owned()); } // avoid leak
     /// ```
     pub unsafe fn deref(&self) -> &'g T {
         let (raw, _) = decompose_tag::<T>(self.data);
@@ -1406,6 +1471,7 @@ impl<'g, T: ?Sized + Pointable> Shared<'g, T> {
     /// unsafe {
     ///     assert_eq!(p.deref(), &vec![1, 2, 3, 4, 5]);
     /// }
+    /// # unsafe { drop(a.into_owned()); } // avoid leak
     /// ```
     pub unsafe fn deref_mut(&mut self) -> &'g mut T {
         let (raw, _) = decompose_tag::<T>(self.data);
@@ -1442,6 +1508,7 @@ impl<'g, T: ?Sized + Pointable> Shared<'g, T> {
     /// unsafe {
     ///     assert_eq!(p.as_ref(), Some(&1234));
     /// }
+    /// # unsafe { drop(a.into_owned()); } // avoid leak
     /// ```
     pub unsafe fn as_ref(&self) -> Option<&'g T> {
         let (raw, _) = decompose_tag::<T>(self.data);
@@ -1481,6 +1548,36 @@ impl<'g, T: ?Sized + Pointable> Shared<'g, T> {
         Owned::from_usize(self.data)
     }
 
+    /// Takes ownership of the pointee if it is not null.
+    ///
+    /// # Safety
+    ///
+    /// This method may be called only if the pointer is valid and nobody else is holding a
+    /// reference to the same object, or if the pointer is null.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use crossbeam_epoch::{self as epoch, Atomic};
+    /// use std::sync::atomic::Ordering::SeqCst;
+    ///
+    /// let a = Atomic::new(1234);
+    /// unsafe {
+    ///     let guard = &epoch::unprotected();
+    ///     let p = a.load(SeqCst, guard);
+    ///     if let Some(x) = p.try_into_owned() {
+    ///         drop(x);
+    ///     }
+    /// }
+    /// ```
+    pub unsafe fn try_into_owned(self) -> Option<Owned<T>> {
+        if self.is_null() {
+            None
+        } else {
+            Some(Owned::from_usize(self.data))
+        }
+    }
+
     /// Returns the tag stored within the pointer.
     ///
     /// # Examples
@@ -1493,6 +1590,7 @@ impl<'g, T: ?Sized + Pointable> Shared<'g, T> {
     /// let guard = &epoch::pin();
     /// let p = a.load(SeqCst, guard);
     /// assert_eq!(p.tag(), 2);
+    /// # unsafe { drop(a.into_owned()); } // avoid leak
     /// ```
     pub fn tag(&self) -> usize {
         let (_, tag) = decompose_tag::<T>(self.data);
@@ -1516,6 +1614,7 @@ impl<'g, T: ?Sized + Pointable> Shared<'g, T> {
     /// assert_eq!(p1.tag(), 0);
     /// assert_eq!(p2.tag(), 2);
     /// assert_eq!(p1.as_raw(), p2.as_raw());
+    /// # unsafe { drop(a.into_owned()); } // avoid leak
     /// ```
     pub fn with_tag(&self, tag: usize) -> Shared<'g, T> {
         unsafe { Self::from_usize(compose_tag::<T>(self.data, tag)) }
@@ -1536,6 +1635,7 @@ impl<T> From<*const T> for Shared<'_, T> {
     ///
     /// let p = Shared::from(Box::into_raw(Box::new(1234)) as *const _);
     /// assert!(!p.is_null());
+    /// # unsafe { drop(p.into_owned()); } // avoid leak
     /// ```
     fn from(raw: *const T) -> Self {
         let raw = raw as usize;
@@ -1612,7 +1712,7 @@ mod tests {
     #[test]
     fn array_init() {
         let owned = Owned::<[MaybeUninit<usize>]>::init(10);
-        let arr: &[MaybeUninit<usize>] = &*owned;
+        let arr: &[MaybeUninit<usize>] = &owned;
         assert_eq!(arr.len(), 10);
     }
 }
diff --git a/vendor/crossbeam-epoch/src/collector.rs b/vendor/crossbeam-epoch/src/collector.rs
index 099a2ffc6..5b0851184 100644
--- a/vendor/crossbeam-epoch/src/collector.rs
+++ b/vendor/crossbeam-epoch/src/collector.rs
@@ -111,7 +111,7 @@ impl fmt::Debug for LocalHandle {
 
 #[cfg(all(test, not(crossbeam_loom)))]
 mod tests {
-    use std::mem;
+    use std::mem::ManuallyDrop;
     use std::sync::atomic::{AtomicUsize, Ordering};
 
     use crossbeam_utils::thread;
@@ -402,15 +402,13 @@ mod tests {
                 v.push(i as i32);
             }
 
-            let ptr = v.as_mut_ptr() as usize;
             let len = v.len();
+            let ptr = ManuallyDrop::new(v).as_mut_ptr() as usize;
             guard.defer_unchecked(move || {
                 drop(Vec::from_raw_parts(ptr as *const i32 as *mut i32, len, len));
                 DESTROYS.fetch_add(len, Ordering::Relaxed);
             });
             guard.flush();
-
-            mem::forget(v);
         }
 
         while DESTROYS.load(Ordering::Relaxed) < COUNT {
diff --git a/vendor/crossbeam-epoch/src/deferred.rs b/vendor/crossbeam-epoch/src/deferred.rs
index c33d51502..2f3d79fdf 100644
--- a/vendor/crossbeam-epoch/src/deferred.rs
+++ b/vendor/crossbeam-epoch/src/deferred.rs
@@ -29,6 +29,15 @@ impl fmt::Debug for Deferred {
 }
 
 impl Deferred {
+    pub(crate) const NO_OP: Self = {
+        fn no_op_call(_raw: *mut u8) {}
+        Self {
+            call: no_op_call,
+            data: MaybeUninit::uninit(),
+            _marker: PhantomData,
+        }
+    };
+
     /// Constructs a new `Deferred` from a `FnOnce()`.
     pub(crate) fn new<F: FnOnce()>(f: F) -> Self {
         let size = mem::size_of::<F>();
@@ -37,10 +46,10 @@ impl Deferred {
         unsafe {
             if size <= mem::size_of::<Data>() && align <= mem::align_of::<Data>() {
                 let mut data = MaybeUninit::<Data>::uninit();
-                ptr::write(data.as_mut_ptr() as *mut F, f);
+                ptr::write(data.as_mut_ptr().cast::<F>(), f);
 
                 unsafe fn call<F: FnOnce()>(raw: *mut u8) {
-                    let f: F = ptr::read(raw as *mut F);
+                    let f: F = ptr::read(raw.cast::<F>());
                     f();
                 }
 
@@ -52,12 +61,12 @@ impl Deferred {
             } else {
                 let b: Box<F> = Box::new(f);
                 let mut data = MaybeUninit::<Data>::uninit();
-                ptr::write(data.as_mut_ptr() as *mut Box<F>, b);
+                ptr::write(data.as_mut_ptr().cast::<Box<F>>(), b);
 
                 unsafe fn call<F: FnOnce()>(raw: *mut u8) {
                     // It's safe to cast `raw` from `*mut u8` to `*mut Box<F>`, because `raw` is
                     // originally derived from `*mut Box<F>`.
-                    let b: Box<F> = ptr::read(raw as *mut Box<F>);
+                    let b: Box<F> = ptr::read(raw.cast::<Box<F>>());
                     (*b)();
                 }
 
@@ -74,7 +83,7 @@ impl Deferred {
     #[inline]
     pub(crate) fn call(mut self) {
         let call = self.call;
-        unsafe { call(self.data.as_mut_ptr() as *mut u8) };
+        unsafe { call(self.data.as_mut_ptr().cast::<u8>()) };
     }
 }
 
diff --git a/vendor/crossbeam-epoch/src/guard.rs b/vendor/crossbeam-epoch/src/guard.rs
index 6db3750b0..ba7fe1b11 100644
--- a/vendor/crossbeam-epoch/src/guard.rs
+++ b/vendor/crossbeam-epoch/src/guard.rs
@@ -46,6 +46,7 @@ use crate::internal::Local;
 /// if let Some(num) = unsafe { p.as_ref() } {
 ///     println!("The number is {}.", num);
 /// }
+/// # unsafe { drop(a.into_owned()); } // avoid leak
 /// ```
 ///
 /// # Multiple guards
@@ -184,6 +185,7 @@ impl Guard {
     ///         });
     ///     }
     /// }
+    /// # unsafe { drop(a.into_owned()); } // avoid leak
     /// ```
     pub unsafe fn defer_unchecked<F, R>(&self, f: F)
     where
@@ -263,6 +265,7 @@ impl Guard {
     ///         guard.defer_destroy(p);
     ///     }
     /// }
+    /// # unsafe { drop(a.into_owned()); } // avoid leak
     /// ```
     pub unsafe fn defer_destroy<T>(&self, ptr: Shared<'_, T>) {
         self.defer_unchecked(move || ptr.into_owned());
@@ -320,6 +323,7 @@ impl Guard {
     ///     let p = a.load(SeqCst, &guard);
     ///     assert_eq!(unsafe { p.as_ref() }, Some(&777));
     /// }
+    /// # unsafe { drop(a.into_owned()); } // avoid leak
     /// ```
     pub fn repin(&mut self) {
         if let Some(local) = unsafe { self.local.as_ref() } {
@@ -356,6 +360,7 @@ impl Guard {
     ///     let p = a.load(SeqCst, &guard);
     ///     assert_eq!(unsafe { p.as_ref() }, Some(&777));
     /// }
+    /// # unsafe { drop(a.into_owned()); } // avoid leak
     /// ```
     pub fn repin_after<F, R>(&mut self, f: F) -> R
     where
@@ -451,6 +456,7 @@ impl fmt::Debug for Guard {
 ///
 ///     // Dropping `dummy` doesn't affect the current thread - it's just a noop.
 /// }
+/// # unsafe { drop(a.into_owned()); } // avoid leak
 /// ```
 ///
 /// The most common use of this function is when constructing or destructing a data structure.
diff --git a/vendor/crossbeam-epoch/src/internal.rs b/vendor/crossbeam-epoch/src/internal.rs
index de208b13e..00c66a40a 100644
--- a/vendor/crossbeam-epoch/src/internal.rs
+++ b/vendor/crossbeam-epoch/src/internal.rs
@@ -55,9 +55,10 @@ use crate::sync::list::{Entry, IsElement, IterError, List};
 use crate::sync::queue::Queue;
 
 /// Maximum number of objects a bag can contain.
-#[cfg(not(crossbeam_sanitize))]
-const MAX_OBJECTS: usize = 62;
-#[cfg(crossbeam_sanitize)]
+#[cfg(not(any(crossbeam_sanitize, miri)))]
+const MAX_OBJECTS: usize = 64;
+// Makes it more likely to trigger any potential data races.
+#[cfg(any(crossbeam_sanitize, miri))]
 const MAX_OBJECTS: usize = 4;
 
 /// A bag of deferred functions.
@@ -106,87 +107,11 @@ impl Bag {
 }
 
 impl Default for Bag {
-    #[rustfmt::skip]
     fn default() -> Self {
-        // TODO: [no_op; MAX_OBJECTS] syntax blocked by https://github.com/rust-lang/rust/issues/49147
-        #[cfg(not(crossbeam_sanitize))]
-        return Bag {
+        Bag {
             len: 0,
-            deferreds: [
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-            ],
-        };
-        #[cfg(crossbeam_sanitize)]
-        return Bag {
-            len: 0,
-            deferreds: [
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-                Deferred::new(no_op_func),
-            ],
-        };
+            deferreds: [Deferred::NO_OP; MAX_OBJECTS],
+        }
     }
 }
 
@@ -194,7 +119,7 @@ impl Drop for Bag {
     fn drop(&mut self) {
         // Call all deferred functions.
         for deferred in &mut self.deferreds[..self.len] {
-            let no_op = Deferred::new(no_op_func);
+            let no_op = Deferred::NO_OP;
             let owned_deferred = mem::replace(deferred, no_op);
             owned_deferred.call();
         }
@@ -210,8 +135,6 @@ impl fmt::Debug for Bag {
     }
 }
 
-fn no_op_func() {}
-
 /// A pair of an epoch and a bag.
 #[derive(Default, Debug)]
 struct SealedBag {
@@ -375,13 +298,14 @@ pub(crate) struct Local {
 
 // Make sure `Local` is less than or equal to 2048 bytes.
 // https://github.com/crossbeam-rs/crossbeam/issues/551
-#[cfg(not(crossbeam_sanitize))] // `crossbeam_sanitize` reduces the size of `Local`
+#[cfg(not(any(crossbeam_sanitize, miri)))] // `crossbeam_sanitize` and `miri` reduce the size of `Local`
 #[test]
 fn local_size() {
-    assert!(
-        core::mem::size_of::<Local>() <= 2048,
-        "An allocation of `Local` should be <= 2048 bytes."
-    );
+    // TODO: https://github.com/crossbeam-rs/crossbeam/issues/869
+    // assert!(
+    //     core::mem::size_of::<Local>() <= 2048,
+    //     "An allocation of `Local` should be <= 2048 bytes."
+    // );
 }
 
 impl Local {
@@ -468,7 +392,10 @@ impl Local {
             // Now we must store `new_epoch` into `self.epoch` and execute a `SeqCst` fence.
             // The fence makes sure that any future loads from `Atomic`s will not happen before
             // this store.
-            if cfg!(any(target_arch = "x86", target_arch = "x86_64")) {
+            if cfg!(all(
+                any(target_arch = "x86", target_arch = "x86_64"),
+                not(miri)
+            )) {
                 // HACK(stjepang): On x86 architectures there are two different ways of executing
                 // a `SeqCst` fence.
                 //