epoch: bump memoffset to v0.9

[Jules-Bertholet]

CC: rust-lang/rust#111839

[trickster]

After updating the feature flag, I get this result.

❯ cargo +nightly test --features memoffset/unstable_offset_of
warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
   --> crossbeam-epoch/src/deferred.rs:103:13
    |
103 |             drop(a);
    |             ^^^^^-^
    |                  |
    |                  argument has type `[usize; 1]`
    |
    = note: use `let _ = ...` to ignore the expression or result
    = note: `#[warn(dropping_copy_types)]` on by default

warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
   --> crossbeam-epoch/src/deferred.rs:118:13
    |
118 |             drop(a);
    |             ^^^^^-^
    |                  |
    |                  argument has type `[usize; 10]`
    |
    = note: use `let _ = ...` to ignore the expression or result

warning: `crossbeam-epoch` (lib test) generated 2 warnings
    Finished test [unoptimized + debuginfo] target(s) in 0.02s
     Running unittests src/lib.rs (/workspaces/crossbeam/target/debug/deps/crossbeam_epoch-6846b2364cfaf944)

running 39 tests
test atomic::tests::array_init ... ok
test atomic::tests::valid_tag_i8 ... ok
test atomic::tests::valid_tag_i64 ... ok
test atomic::tests::const_atomic_null ... ok
test collector::tests::destroy_array ... ok
test collector::tests::drop_array ... ok
test collector::tests::flush_local_bag ... ok
test collector::tests::garbage_buffering ... ok
test collector::tests::incremental ... ok
test collector::tests::count_drops ... ok
test collector::tests::count_destroy ... ok
test collector::tests::pin_reentrant ... ok
test default::tests::pin_while_exiting ... ok
test deferred::tests::boxed_slice_i32 ... ok
test deferred::tests::long_slice_usize ... ok
test deferred::tests::on_heap ... ok
test collector::tests::buffering ... ok
test deferred::tests::on_stack ... ok
test deferred::tests::string ... ok
test internal::local_size ... ok
test internal::tests::check_bag ... ok
test internal::tests::check_defer ... ok
test sync::list::tests::delete ... ok
test sync::list::tests::insert ... ok
test sync::list::tests::iter_multi ... ok
test sync::list::tests::insert_delete_multi ... ok
test sync::queue::test::is_empty_dont_pop ... ok
test sync::queue::test::push_pop_2 ... ok
test sync::queue::test::push_pop_many_seq ... ok
test sync::queue::test::push_pop_1 ... ok
test sync::queue::test::push_try_pop_1 ... ok
test sync::queue::test::push_try_pop_2 ... ok
test collector::tests::stress ... ok
test sync::queue::test::push_try_pop_many_seq ... ok
test sync::queue::test::push_try_pop_many_mpmc ... ok
test collector::tests::pin_holds_advance ... ok
test sync::queue::test::push_pop_many_spsc ... ok
test sync::queue::test::push_try_pop_many_spmc ... ok
test sync::queue::test::push_try_pop_many_spsc ... ok

test result: ok. 39 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.65s

     Running tests/loom.rs (/workspaces/crossbeam/target/debug/deps/loom-9a49639df1298832)

running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

   Doc-tests crossbeam-epoch

running 57 tests
test src/atomic.rs - atomic::Array (line 181) ... ok
test src/atomic.rs - atomic::Atomic<T>::fetch_and (line 599) ... ok
test src/atomic.rs - atomic::Atomic<T>::compare_exchange_weak (line 474) ... ok
test src/atomic.rs - atomic::Atomic<T>::compare_exchange (line 417) ... ok
test src/atomic.rs - atomic::Atomic<T>::fetch_or (line 636) ... ok
test src/atomic.rs - atomic::Atomic<T>::fetch_update (line 555) ... ok
test src/atomic.rs - atomic::Atomic<T>::fetch_xor (line 673) ... ok
test src/atomic.rs - atomic::Atomic<T>::from (line 837) ... ok
test src/atomic.rs - atomic::Atomic<T>::from (line 867) ... ok
test src/atomic.rs - atomic::Atomic<T>::from (line 882) ... ok
test src/atomic.rs - atomic::Atomic<T>::into_owned (line 717) ... ok
test src/atomic.rs - atomic::Atomic<T>::init (line 266) ... ok
test src/atomic.rs - atomic::Atomic<T>::load (line 317) ... ok
test src/atomic.rs - atomic::Atomic<T>::new (line 250) ... ok
test src/atomic.rs - atomic::Atomic<T>::null (line 288) ... ok
test src/atomic.rs - atomic::Atomic<T>::load_consume (line 344) ... ok
test src/atomic.rs - atomic::Atomic<T>::store (line 363) ... ok
test src/atomic.rs - atomic::Atomic<T>::try_into_owned (line 761) ... ok
test src/atomic.rs - atomic::Owned<T>::from (line 1125) ... ok
test src/atomic.rs - atomic::Atomic<T>::swap (line 385) ... ok
test src/atomic.rs - atomic::Owned<T>::init (line 1009) ... ok
test src/atomic.rs - atomic::Owned<T>::from_raw (line 962) ... ok
test src/atomic.rs - atomic::Owned<T>::into_box (line 977) ... ok
test src/atomic.rs - atomic::Owned<T>::into_shared (line 1022) ... ok
test src/atomic.rs - atomic::Owned<T>::new (line 994) ... ok
test src/atomic.rs - atomic::Owned<T>::tag (line 1039) ... ok
test src/atomic.rs - atomic::Owned<T>::with_tag (line 1054) ... ok
test src/atomic.rs - atomic::Pointable (line 90) ... ok
test src/atomic.rs - atomic::Shared<'_,T>::from (line 1490) ... ok
test src/atomic.rs - atomic::Shared<'g,T>::as_raw (line 1202) ... ok
test src/atomic.rs - atomic::Shared<'g,T>::as_ref (line 1358) ... ok
test src/atomic.rs - atomic::Shared<'g,T>::deref (line 1279) ... ok
test src/atomic.rs - atomic::Shared<'g,T>::into_owned (line 1392) ... ok
test src/atomic.rs - atomic::Shared<'g,T>::deref_mut (line 1311) ... ok
test src/atomic.rs - atomic::Shared<'g,T>::is_null (line 1243) ... ok
test src/atomic.rs - atomic::Shared<'g,T>::null (line 1226) ... ok
test src/atomic.rs - atomic::Shared<'g,T>::tag (line 1442) ... ok
test src/atomic.rs - atomic::Shared<'g,T>::try_into_owned (line 1417) ... ok
test src/atomic.rs - atomic::Shared<'g,T>::with_tag (line 1462) ... ok
test src/collector.rs - collector::fmt (line 5) ... ok
test src/guard.rs - guard::Guard (line 17) ... ok
test src/guard.rs - guard::Guard::defer_destroy (line 229) ... ignored
test src/guard.rs - guard::Guard (line 32) ... ok
test src/guard.rs - guard::Guard (line 58) ... ok
test src/guard.rs - guard::Guard::defer_unchecked (line 143) ... ignored
test src/guard.rs - guard::Guard::collector (line 396) ... ok
test src/guard.rs - guard::Guard::defer_destroy (line 246) ... ok
test src/guard.rs - guard::Guard::defer_unchecked (line 123) ... ok
test src/guard.rs - guard::Guard::defer_unchecked (line 160) ... ok
test src/guard.rs - guard::Guard::flush (line 285) ... ok
test src/guard.rs - guard::Guard::repin (line 311) ... ok
test src/sync/list.rs - sync::list::IsElement (line 28) ... ignored
test src/sync/list.rs - sync::list::IsElement (line 59) ... ignored
test src/sync/list.rs - sync::list::IsElement::element_of (line 73) ... ignored
test src/guard.rs - guard::Guard::repin_after (line 346) ... ok
test src/guard.rs - guard::unprotected (line 471) ... ok
test src/guard.rs - guard::unprotected (line 440) ... ok

test result: ok. 52 passed; 0 failed; 5 ignored; 0 measured; 0 filtered out; finished in 5.14s

Tested on Debian

❯ rustc --version                                            
rustc 1.72.0-nightly (1c53407e8 2023-05-28)

[Jules-Bertholet]

That warning also exists on master, see #982

[taiki-e]

Thanks!

bors r+

[bors]

Build succeeded!

The publicly hosted instance of bors-ng is deprecated and will go away soon.

If you want to self-host your own instance, instructions are here.
For more help, visit the forum.

If you want to switch to GitHub's built-in merge queue, visit their help page.

• ci
• test (aarch64-apple-darwin)
• test (aarch64-unknown-linux-gnu)
• test (x86_64-apple-darwin)

[taiki-e]

Published in crossbeam-epoch 0.9.15.