[INFO] cloning repository https://github.com/L1cHH/concurrent_entities [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/L1cHH/concurrent_entities" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FL1cHH%2Fconcurrent_entities", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FL1cHH%2Fconcurrent_entities'... 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[INFO] started tweaking git repo https://github.com/L1cHH/concurrent_entities [INFO] finished tweaking git repo https://github.com/L1cHH/concurrent_entities [INFO] tweaked toml for git repo https://github.com/L1cHH/concurrent_entities written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/L1cHH/concurrent_entities on toolchain db4e1d23234d93b5e96ecc768b35d9090c32cddf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/L1cHH/concurrent_entities 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" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a5ed4bd3e8bb38f50b3a5e414873d5dec6218f32b54fed938d2103f9ff853186 [INFO] running `Command { std: "docker" "start" "-a" "a5ed4bd3e8bb38f50b3a5e414873d5dec6218f32b54fed938d2103f9ff853186", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a5ed4bd3e8bb38f50b3a5e414873d5dec6218f32b54fed938d2103f9ff853186", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a5ed4bd3e8bb38f50b3a5e414873d5dec6218f32b54fed938d2103f9ff853186", kill_on_drop: false }` [INFO] [stdout] a5ed4bd3e8bb38f50b3a5e414873d5dec6218f32b54fed938d2103f9ff853186 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 455beefa192510b4a404dc6c8c37a449a130c31c7d0a0088e67ea6010f898325 [INFO] running `Command { std: "docker" "start" "-a" "455beefa192510b4a404dc6c8c37a449a130c31c7d0a0088e67ea6010f898325", kill_on_drop: false }` [INFO] [stderr] Compiling concurrency-things v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `status` [INFO] [stdout] --> build.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | let status = std::process::Command::new("nasm") [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Deref` [INFO] [stdout] --> src/concurrent_things/atomics/atomic.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::ops::Deref; [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: `super::*` [INFO] [stdout] --> src/concurrent_things/atomics/atomic.rs:64:9 [INFO] [stdout] | [INFO] [stdout] 64 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::Arc` [INFO] [stdout] --> src/concurrent_things/ticket_lock/ticket_lock.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 49 | use std::sync::Arc; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread::yield_now` [INFO] [stdout] --> src/concurrent_things/ticket_lock/ticket_lock.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | use std::thread::yield_now; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/concurrent_things/ticket_lock/ticket_lock.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/concurrent_things/ticket_lock/ticket_lock.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::Arc` [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:157:9 [INFO] [stdout] | [INFO] [stdout] 157 | use std::sync::Arc; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:158:9 [INFO] [stdout] | [INFO] [stdout] 158 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:159:9 [INFO] [stdout] | [INFO] [stdout] 159 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cell::UnsafeCell` [INFO] [stdout] --> src/concurrent_things/semaphore/semaphore.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cell::UnsafeCell; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `AtomicI32` and `Ordering` [INFO] [stdout] --> src/concurrent_things/semaphore/semaphore.rs:3:25 [INFO] [stdout] | [INFO] [stdout] 3 | use std::sync::atomic::{AtomicI32, Ordering}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::atomic::Ordering::SeqCst` [INFO] [stdout] --> src/concurrent_things/semaphore/semaphore.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::sync::atomic::Ordering::SeqCst; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::Arc` [INFO] [stdout] --> src/concurrent_things/barrier/cyclic_barrier.rs:57:9 [INFO] [stdout] | [INFO] [stdout] 57 | use std::sync::Arc; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/concurrent_things/barrier/cyclic_barrier.rs:58:9 [INFO] [stdout] | [INFO] [stdout] 58 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/concurrent_things/barrier/cyclic_barrier.rs:59:9 [INFO] [stdout] | [INFO] [stdout] 59 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::Arc` [INFO] [stdout] --> src/concurrent_things/wait_group/wait_group.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | use std::sync::Arc; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/concurrent_things/wait_group/wait_group.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/concurrent_things/wait_group/wait_group.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 54 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/concurrent_things/wait_group/wait_group.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/concurrent_things/cond_var/cond_var.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::Arc` [INFO] [stdout] --> src/concurrent_things/cond_var/cond_var.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | use std::sync::Arc; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/concurrent_things/cond_var/cond_var.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 49 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/concurrent_things/cond_var/cond_var.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Deref` [INFO] [stdout] --> src/concurrent_things/atomics/atomic.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::ops::Deref; [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: `std::thread::yield_now` [INFO] [stdout] --> src/concurrent_things/ticket_lock/ticket_lock.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | use std::thread::yield_now; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cell::UnsafeCell` [INFO] [stdout] --> src/concurrent_things/semaphore/semaphore.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cell::UnsafeCell; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `AtomicI32` and `Ordering` [INFO] [stdout] --> src/concurrent_things/semaphore/semaphore.rs:3:25 [INFO] [stdout] | [INFO] [stdout] 3 | use std::sync::atomic::{AtomicI32, Ordering}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::atomic::Ordering::SeqCst` [INFO] [stdout] --> src/concurrent_things/semaphore/semaphore.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::sync::atomic::Ordering::SeqCst; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `access` [INFO] [stdout] --> src/concurrent_things/semaphore/bounded_blocking_queue.rs:27:17 [INFO] [stdout] | [INFO] [stdout] 27 | let access = self.mutex.acquire(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_access` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `access` [INFO] [stdout] --> src/concurrent_things/semaphore/bounded_blocking_queue.rs:36:17 [INFO] [stdout] | [INFO] [stdout] 36 | let access = self.mutex.acquire(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_access` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/concurrent_things/cond_var/cond_var.rs:167:13 [INFO] [stdout] | [INFO] [stdout] 167 | let mut raw_mutex = lock.to_raw_mutex(); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/main.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let value = atomic::AtomicI64::new(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `load`, `store`, and `exchange` are never used [INFO] [stdout] --> src/concurrent_things/atomics/atomic.rs:34:12 [INFO] [stdout] | [INFO] [stdout] 26 | impl AtomicI64 { [INFO] [stdout] | -------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 34 | pub fn load(&self, memory_ordering: MemoryOrdering) -> i64 { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | pub fn store(&self, new_value: i64, memory_ordering: MemoryOrdering) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 52 | pub fn exchange(&self, new_value: i64, memory_ordering: MemoryOrdering) -> i64 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `AtomicRelaxedStore` is never used [INFO] [stdout] --> src/concurrent_things/atomics/atomic.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | fn AtomicRelaxedStore(prt: *mut i64, new_value: i64); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `AtomicReleaseStore` is never used [INFO] [stdout] --> src/concurrent_things/atomics/atomic.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | fn AtomicReleaseStore(prt: *mut i64, new_value: i64); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `AtomicSeqCstStore` is never used [INFO] [stdout] --> src/concurrent_things/atomics/atomic.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | fn AtomicSeqCstStore(prt: *mut i64, new_value: i64); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `AtomicRelaxedLoad` is never used [INFO] [stdout] --> src/concurrent_things/atomics/atomic.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | fn AtomicRelaxedLoad(ptr: *const i64) -> i64; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `AtomicAcquireLoad` is never used [INFO] [stdout] --> src/concurrent_things/atomics/atomic.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 14 | fn AtomicAcquireLoad(ptr: *const i64) -> i64; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `AtomicSeqCstLoad` is never used [INFO] [stdout] --> src/concurrent_things/atomics/atomic.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | fn AtomicSeqCstLoad(ptr: *const i64) -> i64; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `AtomicSeqCstExchange` is never used [INFO] [stdout] --> src/concurrent_things/atomics/atomic.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | fn AtomicSeqCstExchange(ptr: *mut i64, new_value: i64) -> i64; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `MemoryOrdering` is never used [INFO] [stdout] --> src/concurrent_things/memory_ordering/memory_ordering.rs:1:10 [INFO] [stdout] | [INFO] [stdout] 1 | pub enum MemoryOrdering { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `WOULD_BLOCK_ERR` is never used [INFO] [stdout] --> src/concurrent_things/spin_lock/spin_lock.rs:5:7 [INFO] [stdout] | [INFO] [stdout] 5 | const WOULD_BLOCK_ERR: &str = "the lock have been already locked..."; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SpinLock` is never constructed [INFO] [stdout] --> src/concurrent_things/spin_lock/spin_lock.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct SpinLock { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/concurrent_things/spin_lock/spin_lock.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 12 | impl SpinLock { [INFO] [stdout] | --------------------------- associated function in this implementation [INFO] [stdout] 13 | pub fn new(data: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `lock`, `try_lock`, and `unlock` are never used [INFO] [stdout] --> src/concurrent_things/spin_lock/spin_lock.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 21 | impl SpinLock { [INFO] [stdout] | ---------------------------- methods in this implementation [INFO] [stdout] 22 | [INFO] [stdout] 23 | pub fn lock(&self) -> SpinLockGuard<'_, T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 32 | pub fn try_lock(&self) -> Result, &'static str> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | pub fn unlock(&self) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SpinLockGuard` is never constructed [INFO] [stdout] --> src/concurrent_things/spin_lock/spin_lock.rs:53:12 [INFO] [stdout] | [INFO] [stdout] 53 | pub struct SpinLockGuard<'a, T: ?Sized + 'a> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `TicketLock` is never constructed [INFO] [stdout] --> src/concurrent_things/ticket_lock/ticket_lock.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct TicketLock { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `lock`, `try_lock`, and `unlock` are never used [INFO] [stdout] --> src/concurrent_things/ticket_lock/ticket_lock.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 10 | impl TicketLock { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 11 | [INFO] [stdout] 12 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | pub fn lock(&self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 28 | pub fn try_lock(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 41 | pub fn unlock(&self) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `INFINITE` is never used [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:20:11 [INFO] [stdout] | [INFO] [stdout] 20 | pub const INFINITE: u32 = u32::MAX; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `SPIN_LIMIT` is never used [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:21:7 [INFO] [stdout] | [INFO] [stdout] 21 | const SPIN_LIMIT: u32 = 100; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `WOULD_BLOCK` is never used [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:22:7 [INFO] [stdout] | [INFO] [stdout] 22 | const WOULD_BLOCK: &str = "it's locked now..."; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `InnerWinMutex` is never constructed [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | struct InnerWinMutex { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `lock`, `try_lock`, `unlock`, and `unlock_much` are never used [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 29 | impl InnerWinMutex { [INFO] [stdout] | ------------------ methods in this implementation [INFO] [stdout] 30 | fn lock(&self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | fn try_lock(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 59 | fn unlock(&self) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 64 | fn unlock_much(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Mutex` is never constructed [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:71:12 [INFO] [stdout] | [INFO] [stdout] 71 | pub struct Mutex { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:77:12 [INFO] [stdout] | [INFO] [stdout] 76 | impl Mutex { [INFO] [stdout] | ------------------------ associated function in this implementation [INFO] [stdout] 77 | pub fn new(data: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `lock`, `try_lock`, `unlock`, and `get` are never used [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:87:12 [INFO] [stdout] | [INFO] [stdout] 86 | impl Mutex { [INFO] [stdout] | -------------------------- methods in this implementation [INFO] [stdout] 87 | pub fn lock(&self) -> MutexGuard<'_, T>{ [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 94 | pub fn try_lock(&self) -> Result, &'static str> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 102 | pub fn unlock(&self) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn get(&self) -> &T { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `RawMutex` is never constructed [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:115:12 [INFO] [stdout] | [INFO] [stdout] 115 | pub struct RawMutex<'a, T: ?Sized + 'a> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `MutexGuard` is never constructed [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:120:12 [INFO] [stdout] | [INFO] [stdout] 120 | pub struct MutexGuard<'a, T: ?Sized + 'a> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `to_raw_mutex` and `from_raw` are never used [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:125:12 [INFO] [stdout] | [INFO] [stdout] 124 | impl <'a, T: ?Sized + 'a> MutexGuard<'a, T> { [INFO] [stdout] | ------------------------------------------- associated items in this implementation [INFO] [stdout] 125 | pub fn to_raw_mutex(self) -> RawMutex<'a, T> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 131 | pub fn from_raw(raw_mutex: RawMutex<'a, T>) -> MutexGuard<'a, T> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `WaitOnAddress` is never used [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:8:12 [INFO] [stdout] | [INFO] [stdout] 8 | pub fn WaitOnAddress( [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `WakeByAddressSingle` is never used [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 15 | pub fn WakeByAddressSingle(Address: *mut c_void); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `WakeByAddressAll` is never used [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn WakeByAddressAll(Address: *mut c_void); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Semaphore` is never constructed [INFO] [stdout] --> src/concurrent_things/semaphore/semaphore.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct Semaphore { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `acquire`, and `release` are never used [INFO] [stdout] --> src/concurrent_things/semaphore/semaphore.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 16 | impl Semaphore { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] 17 | pub fn new(init_permits: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 28 | pub fn acquire(&self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 38 | pub fn release(&self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `TaggedSemaphore` is never constructed [INFO] [stdout] --> src/concurrent_things/semaphore/semaphore.rs:46:12 [INFO] [stdout] | [INFO] [stdout] 46 | pub struct TaggedSemaphore { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Permit` is never constructed [INFO] [stdout] --> src/concurrent_things/semaphore/semaphore.rs:53:12 [INFO] [stdout] | [INFO] [stdout] 53 | pub struct Permit<'a, Tag> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `acquire`, `release`, `move_permit_and_get`, and `move_permit` are never used [INFO] [stdout] --> src/concurrent_things/semaphore/semaphore.rs:64:12 [INFO] [stdout] | [INFO] [stdout] 63 | impl TaggedSemaphore { [INFO] [stdout] | ------------------------------- associated items in this implementation [INFO] [stdout] 64 | pub fn new(init_permits: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 72 | pub fn acquire(&self) -> Permit<'_, Tag> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 86 | fn release(&self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 92 | pub fn move_permit_and_get<'a>(&'a self, mut outer_permit: Permit<'a, Tag>) -> Permit<'a, Tag> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 97 | pub fn move_permit<'a>(&'a self, mut outer_permit: Permit<'a, Tag>) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Access` is never constructed [INFO] [stdout] --> src/concurrent_things/semaphore/bounded_blocking_queue.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct Access {} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `BoundedBlockingQueue` is never constructed [INFO] [stdout] --> src/concurrent_things/semaphore/bounded_blocking_queue.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct BoundedBlockingQueue { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `put`, and `take` are never used [INFO] [stdout] --> src/concurrent_things/semaphore/bounded_blocking_queue.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl BoundedBlockingQueue { [INFO] [stdout] | ------------------------------------------ associated items in this implementation [INFO] [stdout] 15 | pub fn new(capacity: usize) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 24 | pub fn put(&self, el: T) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | pub fn take(&self) -> T { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `BarrierState` is never constructed [INFO] [stdout] --> src/concurrent_things/barrier/cyclic_barrier.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct BarrierState { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `init` is never used [INFO] [stdout] --> src/concurrent_things/barrier/cyclic_barrier.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 8 | impl BarrierState { [INFO] [stdout] | ----------------- associated function in this implementation [INFO] [stdout] 9 | fn init() -> Self { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `CyclicBarrier` is never constructed [INFO] [stdout] --> src/concurrent_things/barrier/cyclic_barrier.rs:18:12 [INFO] [stdout] | [INFO] [stdout] 18 | pub struct CyclicBarrier { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `arrive_and_wait` are never used [INFO] [stdout] --> src/concurrent_things/barrier/cyclic_barrier.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 24 | impl CyclicBarrier { [INFO] [stdout] | ------------------ associated items in this implementation [INFO] [stdout] 25 | pub fn new(n: usize) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | pub fn arrive_and_wait(&self) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `WaitGroup` is never constructed [INFO] [stdout] --> src/concurrent_things/wait_group/wait_group.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct WaitGroup { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `State` is never constructed [INFO] [stdout] --> src/concurrent_things/wait_group/wait_group.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | struct State { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `add`, `done`, and `wait` are never used [INFO] [stdout] --> src/concurrent_things/wait_group/wait_group.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl WaitGroup { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] 15 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | pub fn add(&self, count: usize) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 26 | pub fn done(&self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 37 | pub fn wait(&self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `CondVar` is never constructed [INFO] [stdout] --> src/concurrent_things/cond_var/cond_var.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct CondVar { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `wait`, `notify_one`, and `notify_all` are never used [INFO] [stdout] --> src/concurrent_things/cond_var/cond_var.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl CondVar { [INFO] [stdout] | ------------ associated items in this implementation [INFO] [stdout] 15 | [INFO] [stdout] 16 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | pub fn wait<'a, T: ?Sized>(&self, lock: MutexGuard<'a, T>) -> MutexGuard<'a, T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | pub fn notify_one(&self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 38 | pub fn notify_all(&self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `WaitedThread` is never constructed [INFO] [stdout] --> src/concurrent_things/cond_var/cond_var.rs:153:8 [INFO] [stdout] | [INFO] [stdout] 153 | struct WaitedThread { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FairCondVar` is never constructed [INFO] [stdout] --> src/concurrent_things/cond_var/cond_var.rs:157:12 [INFO] [stdout] | [INFO] [stdout] 157 | pub struct FairCondVar { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `wait`, `notify_one`, and `notify_all` are never used [INFO] [stdout] --> src/concurrent_things/cond_var/cond_var.rs:163:12 [INFO] [stdout] | [INFO] [stdout] 162 | impl FairCondVar { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] 163 | pub fn wait<'a, T: ?Sized + 'a>(&self, lock: MutexGuard<'a, T>) -> MutexGuard<'a, T>{ [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 176 | pub fn notify_one(&self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 186 | pub fn notify_all(&self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/concurrent_things/cond_var/cond_var.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | &self.state.fetch_add(1, Ordering::Relaxed); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 34 | let _ = &self.state.fetch_add(1, Ordering::Relaxed); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/concurrent_things/cond_var/cond_var.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | &self.state.fetch_add(1, Ordering::Relaxed); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 39 | let _ = &self.state.fetch_add(1, Ordering::Relaxed); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary `unsafe` block [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:167:13 [INFO] [stdout] | [INFO] [stdout] 167 | unsafe { *guard += 1 }; [INFO] [stdout] | ^^^^^^ unnecessary `unsafe` block [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `access` [INFO] [stdout] --> src/concurrent_things/semaphore/bounded_blocking_queue.rs:27:17 [INFO] [stdout] | [INFO] [stdout] 27 | let access = self.mutex.acquire(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_access` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `access` [INFO] [stdout] --> src/concurrent_things/semaphore/bounded_blocking_queue.rs:36:17 [INFO] [stdout] | [INFO] [stdout] 36 | let access = self.mutex.acquire(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_access` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/concurrent_things/cond_var/cond_var.rs:167:13 [INFO] [stdout] | [INFO] [stdout] 167 | let mut raw_mutex = lock.to_raw_mutex(); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/main.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let value = atomic::AtomicI64::new(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Release`, `Acquire`, and `SeqCst` are never constructed [INFO] [stdout] --> src/concurrent_things/memory_ordering/memory_ordering.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 1 | pub enum MemoryOrdering { [INFO] [stdout] | -------------- variants in this enum [INFO] [stdout] 2 | Relaxed, [INFO] [stdout] 3 | Release, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 4 | Acquire, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 5 | SeqCst [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 `WOULD_BLOCK_ERR` is never used [INFO] [stdout] --> src/concurrent_things/spin_lock/spin_lock.rs:5:7 [INFO] [stdout] | [INFO] [stdout] 5 | const WOULD_BLOCK_ERR: &str = "the lock have been already locked..."; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SpinLock` is never constructed [INFO] [stdout] --> src/concurrent_things/spin_lock/spin_lock.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct SpinLock { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/concurrent_things/spin_lock/spin_lock.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 12 | impl SpinLock { [INFO] [stdout] | --------------------------- associated function in this implementation [INFO] [stdout] 13 | pub fn new(data: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `lock`, `try_lock`, and `unlock` are never used [INFO] [stdout] --> src/concurrent_things/spin_lock/spin_lock.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 21 | impl SpinLock { [INFO] [stdout] | ---------------------------- methods in this implementation [INFO] [stdout] 22 | [INFO] [stdout] 23 | pub fn lock(&self) -> SpinLockGuard<'_, T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 32 | pub fn try_lock(&self) -> Result, &'static str> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | pub fn unlock(&self) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SpinLockGuard` is never constructed [INFO] [stdout] --> src/concurrent_things/spin_lock/spin_lock.rs:53:12 [INFO] [stdout] | [INFO] [stdout] 53 | pub struct SpinLockGuard<'a, T: ?Sized + 'a> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `unlock` is never used [INFO] [stdout] --> src/concurrent_things/ticket_lock/ticket_lock.rs:41:12 [INFO] [stdout] | [INFO] [stdout] 10 | impl TicketLock { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 41 | pub fn unlock(&self) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `WOULD_BLOCK` is never used [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:22:7 [INFO] [stdout] | [INFO] [stdout] 22 | const WOULD_BLOCK: &str = "it's locked now..."; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `try_lock` and `unlock_much` are never used [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:51:8 [INFO] [stdout] | [INFO] [stdout] 29 | impl InnerWinMutex { [INFO] [stdout] | ------------------ methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 51 | fn try_lock(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 64 | fn unlock_much(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `try_lock` is never used [INFO] [stdout] --> src/concurrent_things/win_mutex/mutex.rs:94:12 [INFO] [stdout] | [INFO] [stdout] 86 | impl Mutex { [INFO] [stdout] | -------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 94 | pub fn try_lock(&self) -> Result, &'static str> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Semaphore` is never constructed [INFO] [stdout] --> src/concurrent_things/semaphore/semaphore.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct Semaphore { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `acquire`, and `release` are never used [INFO] [stdout] --> src/concurrent_things/semaphore/semaphore.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 16 | impl Semaphore { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] 17 | pub fn new(init_permits: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 28 | pub fn acquire(&self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 38 | pub fn release(&self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `move_permit_and_get` is never used [INFO] [stdout] --> src/concurrent_things/semaphore/semaphore.rs:92:12 [INFO] [stdout] | [INFO] [stdout] 63 | impl TaggedSemaphore { [INFO] [stdout] | ------------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 92 | pub fn move_permit_and_get<'a>(&'a self, mut outer_permit: Permit<'a, Tag>) -> Permit<'a, Tag> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `WaitedThread` is never constructed [INFO] [stdout] --> src/concurrent_things/cond_var/cond_var.rs:153:8 [INFO] [stdout] | [INFO] [stdout] 153 | struct WaitedThread { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FairCondVar` is never constructed [INFO] [stdout] --> src/concurrent_things/cond_var/cond_var.rs:157:12 [INFO] [stdout] | [INFO] [stdout] 157 | pub struct FairCondVar { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `wait`, `notify_one`, and `notify_all` are never used [INFO] [stdout] --> src/concurrent_things/cond_var/cond_var.rs:163:12 [INFO] [stdout] | [INFO] [stdout] 162 | impl FairCondVar { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] 163 | pub fn wait<'a, T: ?Sized + 'a>(&self, lock: MutexGuard<'a, T>) -> MutexGuard<'a, T>{ [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 176 | pub fn notify_one(&self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 186 | pub fn notify_all(&self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/concurrent_things/cond_var/cond_var.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | &self.state.fetch_add(1, Ordering::Relaxed); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 34 | let _ = &self.state.fetch_add(1, Ordering::Relaxed); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/concurrent_things/cond_var/cond_var.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | &self.state.fetch_add(1, Ordering::Relaxed); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 39 | let _ = &self.state.fetch_add(1, Ordering::Relaxed); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s [INFO] running `Command { std: "docker" "inspect" "455beefa192510b4a404dc6c8c37a449a130c31c7d0a0088e67ea6010f898325", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "455beefa192510b4a404dc6c8c37a449a130c31c7d0a0088e67ea6010f898325", kill_on_drop: false }` [INFO] [stdout] 455beefa192510b4a404dc6c8c37a449a130c31c7d0a0088e67ea6010f898325