[INFO] fetching crate spin-sync 0.3.2...
[INFO] checking spin-sync-0.3.2 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate spin-sync 0.3.2 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate spin-sync 0.3.2
[INFO] finished tweaking crates.io crate spin-sync 0.3.2
[INFO] tweaked toml for crates.io crate spin-sync 0.3.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate spin-sync 0.3.2 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48c13b9ad85512076dda83bb0094e18e5d399521f4817ea5db459325a3f24fa8
[INFO] running `Command { std: "docker" "start" "-a" "48c13b9ad85512076dda83bb0094e18e5d399521f4817ea5db459325a3f24fa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48c13b9ad85512076dda83bb0094e18e5d399521f4817ea5db459325a3f24fa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48c13b9ad85512076dda83bb0094e18e5d399521f4817ea5db459325a3f24fa8", kill_on_drop: false }`
[INFO] [stdout] 48c13b9ad85512076dda83bb0094e18e5d399521f4817ea5db459325a3f24fa8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05eedd4ca4a2f5bc99fc7580bbb25f5748f95fd5e4a2c2fe85cd7a0ff4bf7104
[INFO] running `Command { std: "docker" "start" "-a" "05eedd4ca4a2f5bc99fc7580bbb25f5748f95fd5e4a2c2fe85cd7a0ff4bf7104", kill_on_drop: false }`
[INFO] [stderr]     Checking spin-sync v0.3.2 (/opt/rustwide/workdir)
[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/barrier.rs:271:18
[INFO] [stdout]     |
[INFO] [stdout] 271 |                 .compare_and_swap(expected, desired, Ordering::Acquire);
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mutex.rs:350:18
[INFO] [stdout]     |
[INFO] [stdout] 350 |                 .compare_and_swap(expected, desired, Ordering::Acquire)
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mutex8.rs:152:34
[INFO] [stdout]     |
[INFO] [stdout] 152 |             let current = self.0.compare_and_swap(expected, locked, Ordering::Acquire);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mutex8.rs:232:34
[INFO] [stdout]     |
[INFO] [stdout] 232 |             let current = self.0.compare_and_swap(expected, locked, Ordering::Acquire);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mutex8.rs:389:18
[INFO] [stdout]     |
[INFO] [stdout] 389 |                 .compare_and_swap(expected, unlocked, Ordering::Release);
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/once.rs:270:53
[INFO] [stdout]     |
[INFO] [stdout] 270 |             let current = OnceState::new(self.state.compare_and_swap(
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/rwlock.rs:436:18
[INFO] [stdout]     |
[INFO] [stdout] 436 |                 .compare_and_swap(expected, desired, Ordering::Acquire);
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/rwlock.rs:606:18
[INFO] [stdout]     |
[INFO] [stdout] 606 |                 .compare_and_swap(expected, desired, Ordering::Release);
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/barrier.rs:263:13
[INFO] [stdout]     |
[INFO] [stdout] 263 |     fn lock(&self) -> (BarrierLockGuard, usize) {
[INFO] [stdout]     |             ^^^^^      ---------------- the same lifetime is hidden here
[INFO] [stdout]     |             |
[INFO] [stdout]     |             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 263 |     fn lock(&self) -> (BarrierLockGuard<'_>, usize) {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/mutex.rs:268:17
[INFO] [stdout]     |
[INFO] [stdout] 268 |     pub fn lock(&self) -> LockResult<MutexGuard<T>> {
[INFO] [stdout]     |                 ^^^^^                ------------- the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 268 |     pub fn lock(&self) -> LockResult<MutexGuard<'_, T>> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/mutex.rs:331:21
[INFO] [stdout]     |
[INFO] [stdout] 331 |     pub fn try_lock(&self) -> TryLockResult<MutexGuard<T>> {
[INFO] [stdout]     |                     ^^^^^                   ------------- the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 331 |     pub fn try_lock(&self) -> TryLockResult<MutexGuard<'_, T>> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/mutex8.rs:147:17
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub fn lock(&self, lock_bits: u8) -> Mutex8Guard {
[INFO] [stdout]     |                 ^^^^^                    ----------- the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub fn lock(&self, lock_bits: u8) -> Mutex8Guard<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/mutex8.rs:227:21
[INFO] [stdout]     |
[INFO] [stdout] 227 |     pub fn try_lock(&self, lock_bits: u8) -> TryLockResult<Mutex8Guard> {
[INFO] [stdout]     |                     ^^^^^ the lifetime is elided here      ----------- the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 227 |     pub fn try_lock(&self, lock_bits: u8) -> TryLockResult<Mutex8Guard<'_>> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/once.rs:265:13
[INFO] [stdout]     |
[INFO] [stdout] 265 |     fn lock(&self) -> (OnceGuard, OnceState) {
[INFO] [stdout]     |             ^^^^^      --------- the same lifetime is hidden here
[INFO] [stdout]     |             |
[INFO] [stdout]     |             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 265 |     fn lock(&self) -> (OnceGuard<'_>, OnceState) {
[INFO] [stdout]     |                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/rwlock.rs:308:21
[INFO] [stdout]     |
[INFO] [stdout] 308 |     pub fn try_read(&self) -> TryLockResult<RwLockReadGuard<T>> {
[INFO] [stdout]     |                     ^^^^^                   ------------------ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 308 |     pub fn try_read(&self) -> TryLockResult<RwLockReadGuard<'_, T>> {
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/rwlock.rs:366:22
[INFO] [stdout]     |
[INFO] [stdout] 366 |     pub fn try_write(&self) -> TryLockResult<RwLockWriteGuard<T>> {
[INFO] [stdout]     |                      ^^^^^                   ------------------- the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 366 |     pub fn try_write(&self) -> TryLockResult<RwLockWriteGuard<'_, T>> {
[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/barrier.rs:271:18
[INFO] [stdout]     |
[INFO] [stdout] 271 |                 .compare_and_swap(expected, desired, Ordering::Acquire);
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mutex.rs:350:18
[INFO] [stdout]     |
[INFO] [stdout] 350 |                 .compare_and_swap(expected, desired, Ordering::Acquire)
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mutex8.rs:152:34
[INFO] [stdout]     |
[INFO] [stdout] 152 |             let current = self.0.compare_and_swap(expected, locked, Ordering::Acquire);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mutex8.rs:232:34
[INFO] [stdout]     |
[INFO] [stdout] 232 |             let current = self.0.compare_and_swap(expected, locked, Ordering::Acquire);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mutex8.rs:389:18
[INFO] [stdout]     |
[INFO] [stdout] 389 |                 .compare_and_swap(expected, unlocked, Ordering::Release);
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/once.rs:270:53
[INFO] [stdout]     |
[INFO] [stdout] 270 |             let current = OnceState::new(self.state.compare_and_swap(
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/rwlock.rs:436:18
[INFO] [stdout]     |
[INFO] [stdout] 436 |                 .compare_and_swap(expected, desired, Ordering::Acquire);
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/rwlock.rs:606:18
[INFO] [stdout]     |
[INFO] [stdout] 606 |                 .compare_and_swap(expected, desired, Ordering::Release);
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/barrier.rs:263:13
[INFO] [stdout]     |
[INFO] [stdout] 263 |     fn lock(&self) -> (BarrierLockGuard, usize) {
[INFO] [stdout]     |             ^^^^^      ---------------- the same lifetime is hidden here
[INFO] [stdout]     |             |
[INFO] [stdout]     |             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 263 |     fn lock(&self) -> (BarrierLockGuard<'_>, usize) {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/mutex.rs:268:17
[INFO] [stdout]     |
[INFO] [stdout] 268 |     pub fn lock(&self) -> LockResult<MutexGuard<T>> {
[INFO] [stdout]     |                 ^^^^^                ------------- the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 268 |     pub fn lock(&self) -> LockResult<MutexGuard<'_, T>> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/mutex.rs:331:21
[INFO] [stdout]     |
[INFO] [stdout] 331 |     pub fn try_lock(&self) -> TryLockResult<MutexGuard<T>> {
[INFO] [stdout]     |                     ^^^^^                   ------------- the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 331 |     pub fn try_lock(&self) -> TryLockResult<MutexGuard<'_, T>> {
[INFO] [stdout]     |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/mutex8.rs:147:17
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub fn lock(&self, lock_bits: u8) -> Mutex8Guard {
[INFO] [stdout]     |                 ^^^^^                    ----------- the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub fn lock(&self, lock_bits: u8) -> Mutex8Guard<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/mutex8.rs:227:21
[INFO] [stdout]     |
[INFO] [stdout] 227 |     pub fn try_lock(&self, lock_bits: u8) -> TryLockResult<Mutex8Guard> {
[INFO] [stdout]     |                     ^^^^^ the lifetime is elided here      ----------- the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 227 |     pub fn try_lock(&self, lock_bits: u8) -> TryLockResult<Mutex8Guard<'_>> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/once.rs:265:13
[INFO] [stdout]     |
[INFO] [stdout] 265 |     fn lock(&self) -> (OnceGuard, OnceState) {
[INFO] [stdout]     |             ^^^^^      --------- the same lifetime is hidden here
[INFO] [stdout]     |             |
[INFO] [stdout]     |             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 265 |     fn lock(&self) -> (OnceGuard<'_>, OnceState) {
[INFO] [stdout]     |                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/rwlock.rs:308:21
[INFO] [stdout]     |
[INFO] [stdout] 308 |     pub fn try_read(&self) -> TryLockResult<RwLockReadGuard<T>> {
[INFO] [stdout]     |                     ^^^^^                   ------------------ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 308 |     pub fn try_read(&self) -> TryLockResult<RwLockReadGuard<'_, T>> {
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/rwlock.rs:366:22
[INFO] [stdout]     |
[INFO] [stdout] 366 |     pub fn try_write(&self) -> TryLockResult<RwLockWriteGuard<T>> {
[INFO] [stdout]     |                      ^^^^^                   ------------------- the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 366 |     pub fn try_write(&self) -> TryLockResult<RwLockWriteGuard<'_, T>> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "05eedd4ca4a2f5bc99fc7580bbb25f5748f95fd5e4a2c2fe85cd7a0ff4bf7104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05eedd4ca4a2f5bc99fc7580bbb25f5748f95fd5e4a2c2fe85cd7a0ff4bf7104", kill_on_drop: false }`
[INFO] [stdout] 05eedd4ca4a2f5bc99fc7580bbb25f5748f95fd5e4a2c2fe85cd7a0ff4bf7104