[INFO] fetching crate coco 0.3.4...
[INFO] checking coco-0.3.4 against 1.95.0 for pr-155915
[INFO] extracting crate coco 0.3.4 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate coco 0.3.4
[INFO] finished tweaking crates.io crate coco 0.3.4
[INFO] tweaked toml for crates.io crate coco 0.3.4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate coco 0.3.4 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.3.23 (available: v0.10.1)
[INFO] [stderr]       Adding scopeguard v0.3.3 (available: v1.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand v0.3.23
[INFO] [stderr]   Downloaded scopeguard v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29fb5f9fe90545bf1ad16dde57962105c09a178654ffaadfb67c7d240ae302b1
[INFO] running `Command { std: "docker" "start" "-a" "29fb5f9fe90545bf1ad16dde57962105c09a178654ffaadfb67c7d240ae302b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29fb5f9fe90545bf1ad16dde57962105c09a178654ffaadfb67c7d240ae302b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29fb5f9fe90545bf1ad16dde57962105c09a178654ffaadfb67c7d240ae302b1", kill_on_drop: false }`
[INFO] [stdout] 29fb5f9fe90545bf1ad16dde57962105c09a178654ffaadfb67c7d240ae302b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65d0faa4ba2f33ae58b485c31009e8e878a3926483ddec5a2398cdb075d80aa5
[INFO] running `Command { std: "docker" "start" "-a" "65d0faa4ba2f33ae58b485c31009e8e878a3926483ddec5a2398cdb075d80aa5", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking coco v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `nightly`
[INFO] [stdout]   --> src/lib.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 | #![cfg_attr(feature = "nightly", feature(const_fn))]
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `internals` and `strict_gc`
[INFO] [stdout]    = help: consider adding `nightly` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]   --> src/epoch/mod.rs:37:24
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub use self::garbage::Garbage;
[INFO] [stdout]    |                        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/epoch/garbage.rs:32:38
[INFO] [stdout]    |
[INFO] [stdout] 32 | use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT};
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/epoch/garbage.rs:51:33
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub static EPOCH: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]    |
[INFO] [stdout] 51 - pub static EPOCH: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout] 51 + pub static EPOCH: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:141:22
[INFO] [stdout]     |
[INFO] [stdout] 141 | unsafe impl Send for Garbage {}
[INFO] [stdout]     |                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:142:22
[INFO] [stdout]     |
[INFO] [stdout] 142 | unsafe impl Sync for Garbage {}
[INFO] [stdout]     |                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:144:6
[INFO] [stdout]     |
[INFO] [stdout] 144 | impl Garbage {
[INFO] [stdout]     |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:368:15
[INFO] [stdout]     |
[INFO] [stdout] 368 | impl Drop for Garbage {
[INFO] [stdout]     |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:403:21
[INFO] [stdout]     |
[INFO] [stdout] 403 | impl fmt::Debug for Garbage {
[INFO] [stdout]     |                     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:410:25
[INFO] [stdout]     |
[INFO] [stdout] 410 | fn global() -> &'static Garbage {
[INFO] [stdout]     |                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:417:42
[INFO] [stdout]     |
[INFO] [stdout] 417 |         let raw = Box::into_raw(Box::new(Garbage::new()));
[INFO] [stdout]     |                                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:433:35
[INFO] [stdout]     |
[INFO] [stdout] 433 |     unsafe { &*(garbage as *const Garbage) }
[INFO] [stdout]     |                                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/epoch/garbage.rs:411:34
[INFO] [stdout]     |
[INFO] [stdout] 411 |     static GLOBAL: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 411 -     static GLOBAL: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout] 411 +     static GLOBAL: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/epoch/garbage.rs:71:34
[INFO] [stdout]    |
[INFO] [stdout] 71 |             epoch: unsafe { mem::uninitialized() },
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:147:23
[INFO] [stdout]     |
[INFO] [stdout] 147 |         let garbage = Garbage {
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/epoch/thread.rs:20:38
[INFO] [stdout]    |
[INFO] [stdout] 20 | use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT};
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/epoch/thread.rs:179:40
[INFO] [stdout]     |
[INFO] [stdout] 179 |     static PARTICIPANTS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 179 -     static PARTICIPANTS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout] 179 +     static PARTICIPANTS: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::head`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |             head: Atomic::null(),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::tail`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:149:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |             tail: Atomic::null(),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::pending`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 150 |             pending: Atomic::null(),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::head`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |         garbage.head.store(sentinel, Relaxed);
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::tail`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |         garbage.tail.store(sentinel, Relaxed);
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::pending`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:173:15
[INFO] [stdout]     |
[INFO] [stdout] 173 |         match self.pending.compare_and_swap_weak_owned(old, Owned::new(Bag::new()), AcqRel, scope) {
[INFO] [stdout]     |               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::pending`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:240:27
[INFO] [stdout]     |
[INFO] [stdout] 240 |         let mut pending = self.pending.load(Acquire, scope);
[INFO] [stdout]     |                           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::pending`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:259:27
[INFO] [stdout]     |
[INFO] [stdout] 259 |         let mut pending = self.pending.load(Acquire, scope);
[INFO] [stdout]     |                           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::tail`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:311:24
[INFO] [stdout]     |
[INFO] [stdout] 311 |         let mut tail = self.tail.load(Acquire, scope);
[INFO] [stdout]     |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::tail`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:320:33
[INFO] [stdout]     |
[INFO] [stdout] 320 |                         let _ = self.tail.compare_and_swap(tail, b, AcqRel, scope);
[INFO] [stdout]     |                                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::tail`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:330:23
[INFO] [stdout]     |
[INFO] [stdout] 330 |                 match self.tail.compare_and_swap_weak(tail, next, AcqRel, scope) {
[INFO] [stdout]     |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::head`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:344:24
[INFO] [stdout]     |
[INFO] [stdout] 344 |         let mut head = self.head.load(Acquire, scope);
[INFO] [stdout]     |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::head`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:352:27
[INFO] [stdout]     |
[INFO] [stdout] 352 |                     match self.head.compare_and_swap_weak(head, next, AcqRel, scope) {
[INFO] [stdout]     |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::pending`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:373:31
[INFO] [stdout]     |
[INFO] [stdout] 373 |                 let pending = self.pending.load(Relaxed, scope).as_raw();
[INFO] [stdout]     |                               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::head`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:380:32
[INFO] [stdout]     |
[INFO] [stdout] 380 |                 let mut head = self.head.load(Relaxed, scope).as_raw();
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/epoch/garbage.rs:419:31
[INFO] [stdout]     |
[INFO] [stdout] 419 |         let previous = GLOBAL.compare_and_swap(0, new, AcqRel);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/epoch/thread.rs:110:24
[INFO] [stdout]     |
[INFO] [stdout] 110 |             self.state.compare_and_swap(previous, state, SeqCst);
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/epoch/thread.rs:233:11
[INFO] [stdout]     |
[INFO] [stdout] 233 |     EPOCH.compare_and_swap(epoch, epoch.wrapping_add(2), SeqCst);
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[UnsafeCell<(unsafe fn(*mut u8, usize), *mut u8, usize)>; 64]` does not permit zero-initialization
[INFO] [stdout]   --> src/epoch/garbage.rs:70:31
[INFO] [stdout]    |
[INFO] [stdout] 70 |             objects: unsafe { mem::zeroed() },
[INFO] [stdout]    |                               ^^^^^^^^^^^^^
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               this code causes undefined behavior when executed
[INFO] [stdout]    |                               help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: function pointers must be non-null
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `usize` does not permit being left uninitialized
[INFO] [stdout]   --> src/epoch/garbage.rs:71:29
[INFO] [stdout]    |
[INFO] [stdout] 71 |             epoch: unsafe { mem::uninitialized() },
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             this code causes undefined behavior when executed
[INFO] [stdout]    |                             help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: integers must be initialized
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stdout] warning: unexpected `cfg` condition value: `nightly`
[INFO] [stdout]   --> src/lib.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 | #![cfg_attr(feature = "nightly", feature(const_fn))]
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `internals` and `strict_gc`
[INFO] [stdout]    = help: consider adding `nightly` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]   --> src/epoch/mod.rs:37:24
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub use self::garbage::Garbage;
[INFO] [stdout]    |                        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/epoch/garbage.rs:32:38
[INFO] [stdout]    |
[INFO] [stdout] 32 | use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT};
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/epoch/garbage.rs:51:33
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub static EPOCH: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]    |
[INFO] [stdout] 51 - pub static EPOCH: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout] 51 + pub static EPOCH: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:141:22
[INFO] [stdout]     |
[INFO] [stdout] 141 | unsafe impl Send for Garbage {}
[INFO] [stdout]     |                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:142:22
[INFO] [stdout]     |
[INFO] [stdout] 142 | unsafe impl Sync for Garbage {}
[INFO] [stdout]     |                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:144:6
[INFO] [stdout]     |
[INFO] [stdout] 144 | impl Garbage {
[INFO] [stdout]     |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:368:15
[INFO] [stdout]     |
[INFO] [stdout] 368 | impl Drop for Garbage {
[INFO] [stdout]     |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `coco` (bench "bench") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:403:21
[INFO] [stdout]     |
[INFO] [stdout] 403 | impl fmt::Debug for Garbage {
[INFO] [stdout]     |                     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:410:25
[INFO] [stdout]     |
[INFO] [stdout] 410 | fn global() -> &'static Garbage {
[INFO] [stdout]     |                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:417:42
[INFO] [stdout]     |
[INFO] [stdout] 417 |         let raw = Box::into_raw(Box::new(Garbage::new()));
[INFO] [stdout]     |                                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:433:35
[INFO] [stdout]     |
[INFO] [stdout] 433 |     unsafe { &*(garbage as *const Garbage) }
[INFO] [stdout]     |                                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/epoch/garbage.rs:411:34
[INFO] [stdout]     |
[INFO] [stdout] 411 |     static GLOBAL: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 411 -     static GLOBAL: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout] 411 +     static GLOBAL: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/epoch/garbage.rs:71:34
[INFO] [stdout]    |
[INFO] [stdout] 71 |             epoch: unsafe { mem::uninitialized() },
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:147:23
[INFO] [stdout]     |
[INFO] [stdout] 147 |         let garbage = Garbage {
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/epoch/garbage.rs:463:42
[INFO] [stdout]     |
[INFO] [stdout] 463 |     use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT};
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:470:16
[INFO] [stdout]     |
[INFO] [stdout] 470 |     use super::Garbage;
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:475:17
[INFO] [stdout]     |
[INFO] [stdout] 475 |         let g = Garbage::new();
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:485:17
[INFO] [stdout]     |
[INFO] [stdout] 485 |         let g = Garbage::new();
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:506:17
[INFO] [stdout]     |
[INFO] [stdout] 506 |         let g = Garbage::new();
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/epoch/garbage.rs:504:40
[INFO] [stdout]     |
[INFO] [stdout] 504 |         static DESTROYS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 504 -         static DESTROYS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout] 504 +         static DESTROYS: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:537:17
[INFO] [stdout]     |
[INFO] [stdout] 537 |         let g = Garbage::new();
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/epoch/garbage.rs:535:40
[INFO] [stdout]     |
[INFO] [stdout] 535 |         static DESTROYS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 535 -         static DESTROYS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout] 535 +         static DESTROYS: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:577:17
[INFO] [stdout]     |
[INFO] [stdout] 577 |         let g = Garbage::new();
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/epoch/garbage.rs:567:37
[INFO] [stdout]     |
[INFO] [stdout] 567 |         static DROPS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 567 -         static DROPS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout] 567 +         static DROPS: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:598:17
[INFO] [stdout]     |
[INFO] [stdout] 598 |         let g = Garbage::new();
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/epoch/garbage.rs:596:40
[INFO] [stdout]     |
[INFO] [stdout] 596 |         static DESTROYS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 596 -         static DESTROYS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout] 596 +         static DESTROYS: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:631:17
[INFO] [stdout]     |
[INFO] [stdout] 631 |         let g = Garbage::new();
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/epoch/garbage.rs:621:37
[INFO] [stdout]     |
[INFO] [stdout] 621 |         static DROPS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 621 -         static DROPS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout] 621 +         static DROPS: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:656:17
[INFO] [stdout]     |
[INFO] [stdout] 656 |         let g = Garbage::new();
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/epoch/garbage.rs:654:40
[INFO] [stdout]     |
[INFO] [stdout] 654 |         static DESTROYS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 654 -         static DESTROYS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout] 654 +         static DESTROYS: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:694:17
[INFO] [stdout]     |
[INFO] [stdout] 694 |         let g = Garbage::new();
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/epoch/garbage.rs:684:37
[INFO] [stdout]     |
[INFO] [stdout] 684 |         static DROPS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 684 -         static DROPS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout] 684 +         static DROPS: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `epoch::garbage::Garbage`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:722:26
[INFO] [stdout]     |
[INFO] [stdout] 722 |         let g = Arc::new(Garbage::new());
[INFO] [stdout]     |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/epoch/garbage.rs:712:37
[INFO] [stdout]     |
[INFO] [stdout] 712 |         static DROPS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 712 -         static DROPS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout] 712 +         static DROPS: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/epoch/thread.rs:20:38
[INFO] [stdout]    |
[INFO] [stdout] 20 | use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT};
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/epoch/thread.rs:179:40
[INFO] [stdout]     |
[INFO] [stdout] 179 |     static PARTICIPANTS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 179 -     static PARTICIPANTS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout] 179 +     static PARTICIPANTS: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::head`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |             head: Atomic::null(),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::tail`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:149:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |             tail: Atomic::null(),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::pending`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 150 |             pending: Atomic::null(),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::head`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |         garbage.head.store(sentinel, Relaxed);
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::tail`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |         garbage.tail.store(sentinel, Relaxed);
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::pending`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:173:15
[INFO] [stdout]     |
[INFO] [stdout] 173 |         match self.pending.compare_and_swap_weak_owned(old, Owned::new(Bag::new()), AcqRel, scope) {
[INFO] [stdout]     |               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::pending`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:240:27
[INFO] [stdout]     |
[INFO] [stdout] 240 |         let mut pending = self.pending.load(Acquire, scope);
[INFO] [stdout]     |                           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::pending`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:259:27
[INFO] [stdout]     |
[INFO] [stdout] 259 |         let mut pending = self.pending.load(Acquire, scope);
[INFO] [stdout]     |                           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::tail`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:311:24
[INFO] [stdout]     |
[INFO] [stdout] 311 |         let mut tail = self.tail.load(Acquire, scope);
[INFO] [stdout]     |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::tail`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:320:33
[INFO] [stdout]     |
[INFO] [stdout] 320 |                         let _ = self.tail.compare_and_swap(tail, b, AcqRel, scope);
[INFO] [stdout]     |                                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::tail`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:330:23
[INFO] [stdout]     |
[INFO] [stdout] 330 |                 match self.tail.compare_and_swap_weak(tail, next, AcqRel, scope) {
[INFO] [stdout]     |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::head`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:344:24
[INFO] [stdout]     |
[INFO] [stdout] 344 |         let mut head = self.head.load(Acquire, scope);
[INFO] [stdout]     |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::head`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:352:27
[INFO] [stdout]     |
[INFO] [stdout] 352 |                     match self.head.compare_and_swap_weak(head, next, AcqRel, scope) {
[INFO] [stdout]     |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::pending`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:373:31
[INFO] [stdout]     |
[INFO] [stdout] 373 |                 let pending = self.pending.load(Relaxed, scope).as_raw();
[INFO] [stdout]     |                               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::head`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:380:32
[INFO] [stdout]     |
[INFO] [stdout] 380 |                 let mut head = self.head.load(Relaxed, scope).as_raw();
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/epoch/garbage.rs:419:31
[INFO] [stdout]     |
[INFO] [stdout] 419 |         let previous = GLOBAL.compare_and_swap(0, new, AcqRel);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::pending`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:479:22
[INFO] [stdout]     |
[INFO] [stdout] 479 |             assert!(!g.pending.load(SeqCst, scope).deref().is_empty());
[INFO] [stdout]     |                      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated field `epoch::garbage::Garbage::pending`: Use scope::defer_free and scope::defer_drop instead
[INFO] [stdout]    --> src/epoch/garbage.rs:495:29
[INFO] [stdout]     |
[INFO] [stdout] 495 |                     assert!(g.pending.load(SeqCst, scope).deref().is_empty());
[INFO] [stdout]     |                             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/epoch/thread.rs:110:24
[INFO] [stdout]     |
[INFO] [stdout] 110 |             self.state.compare_and_swap(previous, state, SeqCst);
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/epoch/thread.rs:233:11
[INFO] [stdout]     |
[INFO] [stdout] 233 |     EPOCH.compare_and_swap(epoch, epoch.wrapping_add(2), SeqCst);
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/bench.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/epoch/garbage.rs:569:21
[INFO] [stdout]     |
[INFO] [stdout] 569 |         struct Elem(i32);
[INFO] [stdout]     |                ---- ^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/epoch/garbage.rs:623:21
[INFO] [stdout]     |
[INFO] [stdout] 623 |         struct Elem(i32);
[INFO] [stdout]     |                ---- ^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/epoch/garbage.rs:686:21
[INFO] [stdout]     |
[INFO] [stdout] 686 |         struct Elem(i32);
[INFO] [stdout]     |                ---- ^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/epoch/garbage.rs:714:21
[INFO] [stdout]     |
[INFO] [stdout] 714 |         struct Elem(i32);
[INFO] [stdout]     |                ---- ^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[UnsafeCell<(unsafe fn(*mut u8, usize), *mut u8, usize)>; 64]` does not permit zero-initialization
[INFO] [stdout]   --> src/epoch/garbage.rs:70:31
[INFO] [stdout]    |
[INFO] [stdout] 70 |             objects: unsafe { mem::zeroed() },
[INFO] [stdout]    |                               ^^^^^^^^^^^^^
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               this code causes undefined behavior when executed
[INFO] [stdout]    |                               help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: function pointers must be non-null
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `usize` does not permit being left uninitialized
[INFO] [stdout]   --> src/epoch/garbage.rs:71:29
[INFO] [stdout]    |
[INFO] [stdout] 71 |             epoch: unsafe { mem::uninitialized() },
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             this code causes undefined behavior when executed
[INFO] [stdout]    |                             help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: integers must be initialized
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "65d0faa4ba2f33ae58b485c31009e8e878a3926483ddec5a2398cdb075d80aa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65d0faa4ba2f33ae58b485c31009e8e878a3926483ddec5a2398cdb075d80aa5", kill_on_drop: false }`
[INFO] [stdout] 65d0faa4ba2f33ae58b485c31009e8e878a3926483ddec5a2398cdb075d80aa5
