[INFO] cloning repository https://github.com/kingfree/readerwriterqueue
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kingfree/readerwriterqueue" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkingfree%2Freaderwriterqueue", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkingfree%2Freaderwriterqueue'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] defa33c455cff73c22b1d8928a0bc4a106859350
[INFO] testing kingfree/readerwriterqueue against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkingfree%2Freaderwriterqueue" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kingfree/readerwriterqueue
[INFO] finished tweaking git repo https://github.com/kingfree/readerwriterqueue
[INFO] tweaked toml for git repo https://github.com/kingfree/readerwriterqueue written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kingfree/readerwriterqueue on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kingfree/readerwriterqueue 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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f9c87a0efe5972d86c898ae60c55ac6912597b79c8153db6d54d93be9fba5a3
[INFO] running `Command { std: "docker" "start" "-a" "5f9c87a0efe5972d86c898ae60c55ac6912597b79c8153db6d54d93be9fba5a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f9c87a0efe5972d86c898ae60c55ac6912597b79c8153db6d54d93be9fba5a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f9c87a0efe5972d86c898ae60c55ac6912597b79c8153db6d54d93be9fba5a3", kill_on_drop: false }`
[INFO] [stdout] 5f9c87a0efe5972d86c898ae60c55ac6912597b79c8153db6d54d93be9fba5a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22376703adc061dcd410a8b70648fbf454a00ab5e8de516b92b42dc711991cab
[INFO] running `Command { std: "docker" "start" "-a" "22376703adc061dcd410a8b70648fbf454a00ab5e8de516b92b42dc711991cab", kill_on_drop: false }`
[INFO] [stderr]    Compiling readerwriterqueue v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/queue.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::mem::{self, align_of, size_of};
[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 variable: `i`
[INFO] [stdout]   --> src/queue.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |             for i in 0..initial_block_count {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/queue.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let mut b = Self::make_block(other.largest_block_size);
[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: `front_block_`
[INFO] [stdout]    --> src/queue.rs:160:17
[INFO] [stdout]     |
[INFO] [stdout] 160 |             let front_block_ = self.front_block.load(Ordering::Relaxed);
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_front_block_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `element`
[INFO] [stdout]    --> src/queue.rs:301:29
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn inner_enqueue(&self, element: T, can_alloc: bool) -> bool {
[INFO] [stdout]     |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_alloc`
[INFO] [stdout]    --> src/queue.rs:301:41
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn inner_enqueue(&self, element: T, can_alloc: bool) -> bool {
[INFO] [stdout]     |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cacheline_filler` and `dequeuing` are never read
[INFO] [stdout]   --> src/queue.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct ReaderWriterQueue<T, const MAX_BLOCK_SIZE: usize = 512> {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 35 |     cacheline_filler: [u8; CACHE_LINE_SIZE - size_of::<AtomicPtr<Block>>()],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     dequeuing: AtomicBool,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `peek` and `pop` are never used
[INFO] [stdout]    --> src/queue.rs:211:8
[INFO] [stdout]     |
[INFO] [stdout]  49 | impl<T, const MAX_BLOCK_SIZE: usize> ReaderWriterQueue<T, MAX_BLOCK_SIZE> {
[INFO] [stdout]     | ------------------------------------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 211 |     fn peek(&self) -> Option<&T> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 260 |     fn pop(&self) -> bool {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cacheline_filler0`, `local_front`, and `cacheline_filler1` are never read
[INFO] [stdout]    --> src/queue.rs:350:5
[INFO] [stdout]     |
[INFO] [stdout] 347 | struct Block {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 350 |     cacheline_filler0: [u8; CACHE_LINE_SIZE - size_of::<AtomicUsize>() - size_of::<usize>()],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 353 |     local_front: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 354 |     cacheline_filler1: [u8; CACHE_LINE_SIZE - size_of::<AtomicUsize>() - size_of::<usize>()],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary allocation, use `&mut` instead
[INFO] [stdout]    --> src/queue.rs:317:9
[INFO] [stdout]     |
[INFO] [stdout] 317 |         Box::new(Block::new(capacity, new_block_raw, new_block_data)).as_mut()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_allocation)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/queue.rs:337:13
[INFO] [stdout]     |
[INFO] [stdout] 337 |             drop(block);
[INFO] [stdout]     |             ^^^^^-----^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `*mut Block`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 337 -             drop(block);
[INFO] [stdout] 337 +             let _ = block;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/queue.rs:338:13
[INFO] [stdout]     |
[INFO] [stdout] 338 |             drop(raw_block);
[INFO] [stdout]     |             ^^^^^---------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `*mut u8`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 338 -             drop(raw_block);
[INFO] [stdout] 338 +             let _ = raw_block;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "22376703adc061dcd410a8b70648fbf454a00ab5e8de516b92b42dc711991cab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22376703adc061dcd410a8b70648fbf454a00ab5e8de516b92b42dc711991cab", kill_on_drop: false }`
[INFO] [stdout] 22376703adc061dcd410a8b70648fbf454a00ab5e8de516b92b42dc711991cab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bdf7dcdcba6af18885e9a606a5e5f471f0f8dc8fa75556695ce432f91514f7d
[INFO] running `Command { std: "docker" "start" "-a" "2bdf7dcdcba6af18885e9a606a5e5f471f0f8dc8fa75556695ce432f91514f7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/queue.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::mem::{self, align_of, size_of};
[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 variable: `i`
[INFO] [stdout]   --> src/queue.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |             for i in 0..initial_block_count {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/queue.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let mut b = Self::make_block(other.largest_block_size);
[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: `front_block_`
[INFO] [stdout]    --> src/queue.rs:160:17
[INFO] [stdout]     |
[INFO] [stdout] 160 |             let front_block_ = self.front_block.load(Ordering::Relaxed);
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_front_block_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `element`
[INFO] [stdout]    --> src/queue.rs:301:29
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn inner_enqueue(&self, element: T, can_alloc: bool) -> bool {
[INFO] [stdout]     |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_alloc`
[INFO] [stdout]    --> src/queue.rs:301:41
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn inner_enqueue(&self, element: T, can_alloc: bool) -> bool {
[INFO] [stdout]     |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cacheline_filler` and `dequeuing` are never read
[INFO] [stdout]   --> src/queue.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct ReaderWriterQueue<T, const MAX_BLOCK_SIZE: usize = 512> {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 35 |     cacheline_filler: [u8; CACHE_LINE_SIZE - size_of::<AtomicPtr<Block>>()],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     dequeuing: AtomicBool,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `peek` and `pop` are never used
[INFO] [stdout]    --> src/queue.rs:211:8
[INFO] [stdout]     |
[INFO] [stdout]  49 | impl<T, const MAX_BLOCK_SIZE: usize> ReaderWriterQueue<T, MAX_BLOCK_SIZE> {
[INFO] [stdout]     | ------------------------------------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 211 |     fn peek(&self) -> Option<&T> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 260 |     fn pop(&self) -> bool {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cacheline_filler0`, `local_front`, and `cacheline_filler1` are never read
[INFO] [stdout]    --> src/queue.rs:350:5
[INFO] [stdout]     |
[INFO] [stdout] 347 | struct Block {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 350 |     cacheline_filler0: [u8; CACHE_LINE_SIZE - size_of::<AtomicUsize>() - size_of::<usize>()],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 353 |     local_front: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 354 |     cacheline_filler1: [u8; CACHE_LINE_SIZE - size_of::<AtomicUsize>() - size_of::<usize>()],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary allocation, use `&mut` instead
[INFO] [stdout]    --> src/queue.rs:317:9
[INFO] [stdout]     |
[INFO] [stdout] 317 |         Box::new(Block::new(capacity, new_block_raw, new_block_data)).as_mut()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_allocation)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/queue.rs:337:13
[INFO] [stdout]     |
[INFO] [stdout] 337 |             drop(block);
[INFO] [stdout]     |             ^^^^^-----^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `*mut Block`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 337 -             drop(block);
[INFO] [stdout] 337 +             let _ = block;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/queue.rs:338:13
[INFO] [stdout]     |
[INFO] [stdout] 338 |             drop(raw_block);
[INFO] [stdout]     |             ^^^^^---------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `*mut u8`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 338 -             drop(raw_block);
[INFO] [stdout] 338 +             let _ = raw_block;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling readerwriterqueue v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/stabtest.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut q = ReaderWriterQueue::<usize>::with_size(n);
[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: `extra`
[INFO] [stdout]   --> tests/stabtest.rs:29:24
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn unpredictable_delay(extra: usize) {}
[INFO] [stdout]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_extra`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/queue.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::mem::{self, align_of, size_of};
[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 variable: `i`
[INFO] [stdout]   --> src/queue.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |             for i in 0..initial_block_count {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/queue.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let mut b = Self::make_block(other.largest_block_size);
[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: `front_block_`
[INFO] [stdout]    --> src/queue.rs:160:17
[INFO] [stdout]     |
[INFO] [stdout] 160 |             let front_block_ = self.front_block.load(Ordering::Relaxed);
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_front_block_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `element`
[INFO] [stdout]    --> src/queue.rs:301:29
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn inner_enqueue(&self, element: T, can_alloc: bool) -> bool {
[INFO] [stdout]     |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_element`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_alloc`
[INFO] [stdout]    --> src/queue.rs:301:41
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn inner_enqueue(&self, element: T, can_alloc: bool) -> bool {
[INFO] [stdout]     |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cacheline_filler` and `dequeuing` are never read
[INFO] [stdout]   --> src/queue.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct ReaderWriterQueue<T, const MAX_BLOCK_SIZE: usize = 512> {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 35 |     cacheline_filler: [u8; CACHE_LINE_SIZE - size_of::<AtomicPtr<Block>>()],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     dequeuing: AtomicBool,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `peek` and `pop` are never used
[INFO] [stdout]    --> src/queue.rs:211:8
[INFO] [stdout]     |
[INFO] [stdout]  49 | impl<T, const MAX_BLOCK_SIZE: usize> ReaderWriterQueue<T, MAX_BLOCK_SIZE> {
[INFO] [stdout]     | ------------------------------------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 211 |     fn peek(&self) -> Option<&T> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 260 |     fn pop(&self) -> bool {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cacheline_filler0`, `local_front`, and `cacheline_filler1` are never read
[INFO] [stdout]    --> src/queue.rs:350:5
[INFO] [stdout]     |
[INFO] [stdout] 347 | struct Block {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 350 |     cacheline_filler0: [u8; CACHE_LINE_SIZE - size_of::<AtomicUsize>() - size_of::<usize>()],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 353 |     local_front: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 354 |     cacheline_filler1: [u8; CACHE_LINE_SIZE - size_of::<AtomicUsize>() - size_of::<usize>()],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary allocation, use `&mut` instead
[INFO] [stdout]    --> src/queue.rs:317:9
[INFO] [stdout]     |
[INFO] [stdout] 317 |         Box::new(Block::new(capacity, new_block_raw, new_block_data)).as_mut()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_allocation)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/queue.rs:337:13
[INFO] [stdout]     |
[INFO] [stdout] 337 |             drop(block);
[INFO] [stdout]     |             ^^^^^-----^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `*mut Block`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 337 -             drop(block);
[INFO] [stdout] 337 +             let _ = block;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/queue.rs:338:13
[INFO] [stdout]     |
[INFO] [stdout] 338 |             drop(raw_block);
[INFO] [stdout]     |             ^^^^^---------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `*mut u8`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 338 -             drop(raw_block);
[INFO] [stdout] 338 +             let _ = raw_block;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.02s
[INFO] running `Command { std: "docker" "inspect" "2bdf7dcdcba6af18885e9a606a5e5f471f0f8dc8fa75556695ce432f91514f7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bdf7dcdcba6af18885e9a606a5e5f471f0f8dc8fa75556695ce432f91514f7d", kill_on_drop: false }`
[INFO] [stdout] 2bdf7dcdcba6af18885e9a606a5e5f471f0f8dc8fa75556695ce432f91514f7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1c91b4b310deeff7e871e07e0c56e79f0c2480f80f16335ccd05a31fcc3cebd8
[INFO] running `Command { std: "docker" "start" "-a" "1c91b4b310deeff7e871e07e0c56e79f0c2480f80f16335ccd05a31fcc3cebd8", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/queue.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::mem::{self, align_of, size_of};
[INFO] [stderr]   |                 ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/queue.rs:72:17
[INFO] [stderr]    |
[INFO] [stderr] 72 |             for i in 0..initial_block_count {
[INFO] [stderr]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/queue.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 114 |         let mut b = Self::make_block(other.largest_block_size);
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `front_block_`
[INFO] [stderr]    --> src/queue.rs:160:17
[INFO] [stderr]     |
[INFO] [stderr] 160 |             let front_block_ = self.front_block.load(Ordering::Relaxed);
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_front_block_`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `element`
[INFO] [stderr]    --> src/queue.rs:301:29
[INFO] [stderr]     |
[INFO] [stderr] 301 |     fn inner_enqueue(&self, element: T, can_alloc: bool) -> bool {
[INFO] [stderr]     |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_element`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `can_alloc`
[INFO] [stderr]    --> src/queue.rs:301:41
[INFO] [stderr]     |
[INFO] [stderr] 301 |     fn inner_enqueue(&self, element: T, can_alloc: bool) -> bool {
[INFO] [stderr]     |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_alloc`
[INFO] [stderr] 
[INFO] [stderr] warning: fields `cacheline_filler` and `dequeuing` are never read
[INFO] [stderr]   --> src/queue.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub struct ReaderWriterQueue<T, const MAX_BLOCK_SIZE: usize = 512> {
[INFO] [stderr]    |            ----------------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 35 |     cacheline_filler: [u8; CACHE_LINE_SIZE - size_of::<AtomicPtr<Block>>()],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 42 |     dequeuing: AtomicBool,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `peek` and `pop` are never used
[INFO] [stderr]    --> src/queue.rs:211:8
[INFO] [stderr]     |
[INFO] [stderr]  49 | impl<T, const MAX_BLOCK_SIZE: usize> ReaderWriterQueue<T, MAX_BLOCK_SIZE> {
[INFO] [stderr]     | ------------------------------------------------------------------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 211 |     fn peek(&self) -> Option<&T> {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 260 |     fn pop(&self) -> bool {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `cacheline_filler0`, `local_front`, and `cacheline_filler1` are never read
[INFO] [stderr]    --> src/queue.rs:350:5
[INFO] [stderr]     |
[INFO] [stderr] 347 | struct Block {
[INFO] [stderr]     |        ----- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 350 |     cacheline_filler0: [u8; CACHE_LINE_SIZE - size_of::<AtomicUsize>() - size_of::<usize>()],
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 353 |     local_front: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 354 |     cacheline_filler1: [u8; CACHE_LINE_SIZE - size_of::<AtomicUsize>() - size_of::<usize>()],
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary allocation, use `&mut` instead
[INFO] [stderr]    --> src/queue.rs:317:9
[INFO] [stderr]     |
[INFO] [stderr] 317 |         Box::new(Block::new(capacity, new_block_raw, new_block_data)).as_mut()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_allocation)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stderr]    --> src/queue.rs:337:13
[INFO] [stderr]     |
[INFO] [stderr] 337 |             drop(block);
[INFO] [stderr]     |             ^^^^^-----^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  argument has type `*mut Block`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]     |
[INFO] [stderr] 337 -             drop(block);
[INFO] [stderr] 337 +             let _ = block;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stderr]    --> src/queue.rs:338:13
[INFO] [stderr]     |
[INFO] [stderr] 338 |             drop(raw_block);
[INFO] [stderr]     |             ^^^^^---------^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  argument has type `*mut u8`
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]     |
[INFO] [stderr] 338 -             drop(raw_block);
[INFO] [stderr] 338 +             let _ = raw_block;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `readerwriterqueue` (lib) generated 12 warnings (run `cargo fix --lib -p readerwriterqueue` to apply 6 suggestions)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/stabtest.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |         let mut q = ReaderWriterQueue::<usize>::with_size(n);
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `extra`
[INFO] [stderr]   --> tests/stabtest.rs:29:24
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn unpredictable_delay(extra: usize) {}
[INFO] [stderr]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_extra`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `readerwriterqueue` (test "stabtest") generated 2 warnings (run `cargo fix --test "stabtest" -p readerwriterqueue` to apply 2 suggestions)
[INFO] [stderr] warning: `readerwriterqueue` (lib test) generated 12 warnings (12 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/readerwriterqueue-e5d28a07fab311b1)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/stabtest.rs (/opt/rustwide/target/debug/deps/stabtest-d42e81bf3545b50f)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "1c91b4b310deeff7e871e07e0c56e79f0c2480f80f16335ccd05a31fcc3cebd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c91b4b310deeff7e871e07e0c56e79f0c2480f80f16335ccd05a31fcc3cebd8", kill_on_drop: false }`
[INFO] [stdout] 1c91b4b310deeff7e871e07e0c56e79f0c2480f80f16335ccd05a31fcc3cebd8
