[INFO] cloning repository https://github.com/MoefulYe/rust-atomic-and-locks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MoefulYe/rust-atomic-and-locks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMoefulYe%2Frust-atomic-and-locks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMoefulYe%2Frust-atomic-and-locks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd0c5135f280134eaa333230bee6572b1a26872c
[INFO] checking MoefulYe/rust-atomic-and-locks against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMoefulYe%2Frust-atomic-and-locks" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MoefulYe/rust-atomic-and-locks
[INFO] finished tweaking git repo https://github.com/MoefulYe/rust-atomic-and-locks
[INFO] tweaked toml for git repo https://github.com/MoefulYe/rust-atomic-and-locks written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MoefulYe/rust-atomic-and-locks on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MoefulYe/rust-atomic-and-locks already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9aea92e6d93d07eb9a482a0e828643807e5e041ccee72722ab5b42e97d821c7b
[INFO] running `Command { std: "docker" "start" "-a" "9aea92e6d93d07eb9a482a0e828643807e5e041ccee72722ab5b42e97d821c7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9aea92e6d93d07eb9a482a0e828643807e5e041ccee72722ab5b42e97d821c7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9aea92e6d93d07eb9a482a0e828643807e5e041ccee72722ab5b42e97d821c7b", kill_on_drop: false }`
[INFO] [stdout] 9aea92e6d93d07eb9a482a0e828643807e5e041ccee72722ab5b42e97d821c7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13df11172efe8ef21026258f0aa99b93b5d73c1bd367bdf624126065d4ab5334
[INFO] running `Command { std: "docker" "start" "-a" "13df11172efe8ef21026258f0aa99b93b5d73c1bd367bdf624126065d4ab5334", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `DerefMut`
[INFO] [stdout]  --> src/arc/optimizing.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     ops::{Deref, DerefMut},
[INFO] [stdout]   |                  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::ffi`
[INFO] [stdout]  --> src/blockable_locks_impl/futex.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::ffi;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `AtomicBool`, and `time::Instant`
[INFO] [stdout]  --> src/hardware/concurrent_read_write.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |         Arc,
[INFO] [stdout]   |         ^^^
[INFO] [stdout] 5 |         atomic::{AtomicBool, AtomicU64},
[INFO] [stdout]   |                  ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 8 |     time::Instant,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `current`
[INFO] [stdout]  --> src/oneshot.rs:6:28
[INFO] [stdout]   |
[INFO] [stdout] 6 |     thread::{self, Thread, current},
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `WIRTE_LOCKED` is never used
[INFO] [stdout]   --> src/blockable_locks_impl/rwlock.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const WIRTE_LOCKED: u32 = u32::MAX;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `WIRTE_LOCKED` is never used
[INFO] [stdout]  --> src/blockable_locks_impl/rwlock_v3.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const WIRTE_LOCKED: u32 = u32::MAX;
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SpinLock` is never constructed
[INFO] [stdout]  --> src/spinlock.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct SpinLock<T> {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Guard` is never constructed
[INFO] [stdout]   --> src/spinlock.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Guard<'a, T> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `lock`, and `into_inner` are never used
[INFO] [stdout]   --> src/spinlock.rs:38:14
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl<T> SpinLock<T> {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 38 |     const fn new(data: T) -> Self {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     fn lock(&self) -> Guard<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn into_inner(self) -> T {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/blockable_locks_impl/mutex_v1.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn lock(&self) -> Guard<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]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn lock(&self) -> Guard<'_, T> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/blockable_locks_impl/mutex_v2.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn lock(&self) -> Guard<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] 61 |     pub fn lock(&self) -> Guard<'_, T> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/blockable_locks_impl/mutex_v3.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn lock(&self) -> Guard<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] 63 |     pub fn lock(&self) -> Guard<'_, T> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/blockable_locks_impl/rwlock.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn read(&self) -> ReadGuard<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] 74 |     pub fn read(&self) -> ReadGuard<'_, T> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/blockable_locks_impl/rwlock.rs:99:18
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn write(&self) -> WriteGuard<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] 99 |     pub fn write(&self) -> WriteGuard<'_, T> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/blockable_locks_impl/rwlock_v2.rs:84:17
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn read(&self) -> ReadGuard<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] 84 |     pub fn read(&self) -> ReadGuard<'_, T> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/blockable_locks_impl/rwlock_v2.rs:109:18
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn write(&self) -> WriteGuard<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] 109 |     pub fn write(&self) -> WriteGuard<'_, T> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/blockable_locks_impl/rwlock_v3.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn read(&self) -> ReadGuard<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] 87 |     pub fn read(&self) -> ReadGuard<'_, T> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/blockable_locks_impl/rwlock_v3.rs:119:18
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn write(&self) -> WriteGuard<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] 119 |     pub fn write(&self) -> WriteGuard<'_, T> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/spinlock.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn lock(&self) -> Guard<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] 45 |     fn lock(&self) -> Guard<'_, T> {
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `portable_simd` is declared but not used
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(portable_simd)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DerefMut`
[INFO] [stdout]  --> src/arc/optimizing.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     ops::{Deref, DerefMut},
[INFO] [stdout]   |                  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Mutex`
[INFO] [stdout]  --> src/blockable_locks_impl/condvar.rs:2:44
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::mutex_v3::{Guard as MutexGuard, Mutex};
[INFO] [stdout]   |                                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::ffi`
[INFO] [stdout]  --> src/blockable_locks_impl/futex.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::ffi;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `AtomicBool`, `AtomicU64`, `hint::black_box`, `thread`, and `time::Instant`
[INFO] [stdout]  --> src/hardware/concurrent_read_write.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     hint::black_box,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 3 |     sync::{
[INFO] [stdout] 4 |         Arc,
[INFO] [stdout]   |         ^^^
[INFO] [stdout] 5 |         atomic::{AtomicBool, AtomicU64},
[INFO] [stdout]   |                  ^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 6 |     },
[INFO] [stdout] 7 |     thread,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 8 |     time::Instant,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `current`
[INFO] [stdout]  --> src/oneshot.rs:6:28
[INFO] [stdout]   |
[INFO] [stdout] 6 |     thread::{self, Thread, current},
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `WIRTE_LOCKED` is never used
[INFO] [stdout]   --> src/blockable_locks_impl/rwlock.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const WIRTE_LOCKED: u32 = u32::MAX;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `WIRTE_LOCKED` is never used
[INFO] [stdout]  --> src/blockable_locks_impl/rwlock_v3.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const WIRTE_LOCKED: u32 = u32::MAX;
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Oneshot` is never constructed
[INFO] [stdout]  --> src/oneshot.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Oneshot<T> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sender` is never constructed
[INFO] [stdout]   --> src/oneshot.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Sender<'a, T> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Receiver` is never constructed
[INFO] [stdout]   --> src/oneshot.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct Receiver<'a, T> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `split` are never used
[INFO] [stdout]   --> src/oneshot.rs:26:14
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl<T> Oneshot<T> {
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] 26 |     const fn new() -> Self {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn split<'a>(&'a mut self) -> (Receiver<'a, T>, Sender<'a, T>) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]   --> src/oneshot.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl<'a, T> Sender<'a, T> {
[INFO] [stdout]    | ------------------------- method in this implementation
[INFO] [stdout] 60 |     fn send(self, message: T) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `recv` is never used
[INFO] [stdout]   --> src/oneshot.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl<'a, T> Receiver<'a, T> {
[INFO] [stdout]    | --------------------------- method in this implementation
[INFO] [stdout] 70 |     fn recv(self) -> T {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SpinLock` is never constructed
[INFO] [stdout]  --> src/spinlock.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct SpinLock<T> {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Guard` is never constructed
[INFO] [stdout]   --> src/spinlock.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Guard<'a, T> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `lock`, and `into_inner` are never used
[INFO] [stdout]   --> src/spinlock.rs:38:14
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl<T> SpinLock<T> {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 38 |     const fn new(data: T) -> Self {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     fn lock(&self) -> Guard<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn into_inner(self) -> T {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/blockable_locks_impl/mutex_v1.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn lock(&self) -> Guard<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]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn lock(&self) -> Guard<'_, T> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/blockable_locks_impl/mutex_v2.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn lock(&self) -> Guard<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] 61 |     pub fn lock(&self) -> Guard<'_, T> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/blockable_locks_impl/mutex_v3.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn lock(&self) -> Guard<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] 63 |     pub fn lock(&self) -> Guard<'_, T> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/blockable_locks_impl/rwlock.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn read(&self) -> ReadGuard<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] 74 |     pub fn read(&self) -> ReadGuard<'_, T> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/blockable_locks_impl/rwlock.rs:99:18
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn write(&self) -> WriteGuard<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] 99 |     pub fn write(&self) -> WriteGuard<'_, T> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/blockable_locks_impl/rwlock_v2.rs:84:17
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn read(&self) -> ReadGuard<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] 84 |     pub fn read(&self) -> ReadGuard<'_, T> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/blockable_locks_impl/rwlock_v2.rs:109:18
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn write(&self) -> WriteGuard<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] 109 |     pub fn write(&self) -> WriteGuard<'_, T> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/blockable_locks_impl/rwlock_v3.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn read(&self) -> ReadGuard<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] 87 |     pub fn read(&self) -> ReadGuard<'_, T> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/blockable_locks_impl/rwlock_v3.rs:119:18
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn write(&self) -> WriteGuard<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] 119 |     pub fn write(&self) -> WriteGuard<'_, T> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/spinlock.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn lock(&self) -> Guard<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] 45 |     fn lock(&self) -> Guard<'_, T> {
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `portable_simd` is declared but not used
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(portable_simd)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "13df11172efe8ef21026258f0aa99b93b5d73c1bd367bdf624126065d4ab5334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13df11172efe8ef21026258f0aa99b93b5d73c1bd367bdf624126065d4ab5334", kill_on_drop: false }`
[INFO] [stdout] 13df11172efe8ef21026258f0aa99b93b5d73c1bd367bdf624126065d4ab5334
