[INFO] cloning repository https://github.com/townie/bleachers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/townie/bleachers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftownie%2Fbleachers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftownie%2Fbleachers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2bc344a3729c30aef20a36fa051c1281672be4d0
[INFO] testing townie/bleachers against try#0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6 for pr-137122-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftownie%2Fbleachers" "/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/townie/bleachers
[INFO] finished tweaking git repo https://github.com/townie/bleachers
[INFO] tweaked toml for git repo https://github.com/townie/bleachers written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/townie/bleachers on toolchain 0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/townie/bleachers 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" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded owned-alloc v0.2.0
[INFO] [stderr]   Downloaded win-sys v0.3.1
[INFO] [stderr]   Downloaded shared_memory v0.12.4
[INFO] [stderr]   Downloaded eventador v0.0.18
[INFO] [stderr]   Downloaded lockfree v0.5.1
[INFO] [stderr]   Downloaded disruptor v3.2.0
[INFO] [stderr]   Downloaded loole v0.3.1
[INFO] [stderr]   Downloaded core_affinity v0.8.1
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b0a0a59f7d87195a2c30ab04a565d5307f653ed261b1791b8c5c0f337d29b96
[INFO] running `Command { std: "docker" "start" "-a" "8b0a0a59f7d87195a2c30ab04a565d5307f653ed261b1791b8c5c0f337d29b96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b0a0a59f7d87195a2c30ab04a565d5307f653ed261b1791b8c5c0f337d29b96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b0a0a59f7d87195a2c30ab04a565d5307f653ed261b1791b8c5c0f337d29b96", kill_on_drop: false }`
[INFO] [stdout] 8b0a0a59f7d87195a2c30ab04a565d5307f653ed261b1791b8c5c0f337d29b96
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43641d24447bfc5a89f089e1c6beca18ff109dd3e619e3493bd7cb3c9b84b034
[INFO] running `Command { std: "docker" "start" "-a" "43641d24447bfc5a89f089e1c6beca18ff109dd3e619e3493bd7cb3c9b84b034", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling parking v2.2.0
[INFO] [stderr]    Compiling bytes v1.7.1
[INFO] [stderr]    Compiling owned-alloc v0.2.0
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling loole v0.3.1
[INFO] [stderr]    Compiling std_mpsc_benchmark v0.1.0 (/opt/rustwide/workdir/std_mpsc_benchmark)
[INFO] [stderr]    Compiling lockfree v0.5.1
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling loole_benchmark_lib v0.1.0 (/opt/rustwide/workdir/loole_benchmark_lib)
[INFO] [stdout] warning: unused import: `loole::*`
[INFO] [stdout]  --> loole_benchmark_lib/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use loole::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.11
[INFO] [stderr]    Compiling crossbeam-channel v0.5.13
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling kanal v0.1.0-pre8 (https://github.com/fereidani/kanal#125fb787)
[INFO] [stderr]    Compiling event-listener v5.3.1
[INFO] [stderr]    Compiling concurrent_queue_benchmark v0.1.0 (/opt/rustwide/workdir/concurrent_queue_benchmark)
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> concurrent_queue_benchmark/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling kanal_benchmark_lib v0.1.0 (/opt/rustwide/workdir/kanal_benchmark_lib)
[INFO] [stderr]    Compiling event-listener-strategy v0.5.2
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling eventador v0.0.18
[INFO] [stderr]    Compiling crossbeam_mpsc_benchmark v0.1.0 (/opt/rustwide/workdir/crossbeam_mpsc_benchmark)
[INFO] [stderr]    Compiling async-channel v2.3.1
[INFO] [stderr]    Compiling eventador_benchmark_lib v0.1.0 (/opt/rustwide/workdir/eventador_benchmark_lib)
[INFO] [stdout] warning: unused imports: `Arc` and `Mutex`
[INFO] [stdout]  --> eventador_benchmark_lib/src/lib.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> eventador_benchmark_lib/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling mio v1.0.2
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling nix v0.23.2
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling nanorand v0.7.0
[INFO] [stderr]    Compiling core_affinity v0.8.1
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling flume v0.11.0
[INFO] [stderr]    Compiling flume_benchmark_lib v0.1.0 (/opt/rustwide/workdir/flume_benchmark_lib)
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling tokio v1.40.0
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling disruptor v3.2.0
[INFO] [stderr]    Compiling disruptor_benchmark v0.1.0 (/opt/rustwide/workdir/disruptor_benchmark)
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> disruptor_benchmark/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> disruptor_benchmark/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sequence`
[INFO] [stdout]   --> disruptor_benchmark/src/lib.rs:22:33
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let processor = |e: &Event, sequence: Sequence, end_of_batch: bool| {
[INFO] [stdout]    |                                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sequence`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `end_of_batch`
[INFO] [stdout]   --> disruptor_benchmark/src/lib.rs:22:53
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let processor = |e: &Event, sequence: Sequence, end_of_batch: bool| {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_end_of_batch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BUFFER_SIZE` is never used
[INFO] [stdout]   --> disruptor_benchmark/src/lib.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 |     const BUFFER_SIZE: usize = 1024; // Size of the disruptor ring buffer
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling shared_memory v0.12.4
[INFO] [stderr]    Compiling mantra_lib v0.1.0 (/opt/rustwide/workdir/mantra_lib)
[INFO] [stdout] warning: unexpected `cfg` condition value: `shmem`
[INFO] [stdout]    --> mantra_lib/src/queue.rs:204:7
[INFO] [stdout]     |
[INFO] [stdout] 204 | #[cfg(feature = "shmem")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `shmem` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `shmem`
[INFO] [stdout]   --> mantra_lib/src/queue.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 |     #[cfg(feature = "shmem")]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `shmem` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fence`
[INFO] [stdout]  --> mantra_lib/src/seqlock.rs:4:41
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::sync::atomic::{compiler_fence, fence, AtomicUsize, Ordering};
[INFO] [stdout]   |                                         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `shmem`
[INFO] [stdout]    --> mantra_lib/src/vector.rs:111:7
[INFO] [stdout]     |
[INFO] [stdout] 111 | #[cfg(feature = "shmem")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `shmem` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Index`
[INFO] [stdout]  --> mantra_lib/src/vector.rs:2:44
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{alloc::Layout, mem::MaybeUninit, ops::Index};
[INFO] [stdout]   |                                            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::slice::SliceIndex`
[INFO] [stdout]  --> mantra_lib/src/seqlock.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::slice::SliceIndex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> mantra_lib/src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     for n in 0..n_readers {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `multithread` is never used
[INFO] [stdout]  --> mantra_lib/src/lib.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn multithread(n_writers: usize, n_readers: usize, tot_messages: usize) {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `power_of_two` is never used
[INFO] [stdout]   --> mantra_lib/src/queue.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn power_of_two(mut v: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `version` is never used
[INFO] [stdout]    --> mantra_lib/src/queue.rs:174:8
[INFO] [stdout]     |
[INFO] [stdout] 86  | impl<T: Copy> Queue<T> {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 174 |     fn version(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> mantra_lib/src/lib.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         h.join();
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let _ = h.join();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> mantra_lib/src/lib.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         h.join();
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let _ = h.join();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> mantra_lib/src/lib.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     cons1.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let _ = cons1.join();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> mantra_lib/src/lib.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     prod1.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 76 |     let _ = prod1.join();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling async_channel_benchmark_lib v0.1.0 (/opt/rustwide/workdir/async_channel_benchmark_lib)
[INFO] [stderr]    Compiling tokio_mpsc_benchmark v0.1.0 (/opt/rustwide/workdir/tokio_mpsc_benchmark)
[INFO] [stderr]    Compiling benchmark_runner v0.1.0 (/opt/rustwide/workdir/benchmark_runner)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.24s
[INFO] running `Command { std: "docker" "inspect" "43641d24447bfc5a89f089e1c6beca18ff109dd3e619e3493bd7cb3c9b84b034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43641d24447bfc5a89f089e1c6beca18ff109dd3e619e3493bd7cb3c9b84b034", kill_on_drop: false }`
[INFO] [stdout] 43641d24447bfc5a89f089e1c6beca18ff109dd3e619e3493bd7cb3c9b84b034
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a37a81adcb102d1ccf3d031e48cf92f82e2fb5a5717e0fa02b5bb3b8f4400ed
[INFO] running `Command { std: "docker" "start" "-a" "0a37a81adcb102d1ccf3d031e48cf92f82e2fb5a5717e0fa02b5bb3b8f4400ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio_mpsc_benchmark v0.1.0 (/opt/rustwide/workdir/tokio_mpsc_benchmark)
[INFO] [stderr]    Compiling crossbeam_mpsc_benchmark v0.1.0 (/opt/rustwide/workdir/crossbeam_mpsc_benchmark)
[INFO] [stderr]    Compiling concurrent_queue_benchmark v0.1.0 (/opt/rustwide/workdir/concurrent_queue_benchmark)
[INFO] [stderr]    Compiling std_mpsc_benchmark v0.1.0 (/opt/rustwide/workdir/std_mpsc_benchmark)
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> concurrent_queue_benchmark/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `loole::*`
[INFO] [stdout]  --> loole_benchmark_lib/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use loole::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc` and `Mutex`
[INFO] [stdout]  --> eventador_benchmark_lib/src/lib.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> eventador_benchmark_lib/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> disruptor_benchmark/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> disruptor_benchmark/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sequence`
[INFO] [stdout]   --> disruptor_benchmark/src/lib.rs:22:33
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let processor = |e: &Event, sequence: Sequence, end_of_batch: bool| {
[INFO] [stdout]    |                                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sequence`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling disruptor_benchmark v0.1.0 (/opt/rustwide/workdir/disruptor_benchmark)
[INFO] [stderr]    Compiling flume_benchmark_lib v0.1.0 (/opt/rustwide/workdir/flume_benchmark_lib)
[INFO] [stdout] warning: unused variable: `end_of_batch`
[INFO] [stdout]   --> disruptor_benchmark/src/lib.rs:22:53
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let processor = |e: &Event, sequence: Sequence, end_of_batch: bool| {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_end_of_batch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling kanal_benchmark_lib v0.1.0 (/opt/rustwide/workdir/kanal_benchmark_lib)
[INFO] [stdout] warning: constant `BUFFER_SIZE` is never used
[INFO] [stdout]   --> disruptor_benchmark/src/lib.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 |     const BUFFER_SIZE: usize = 1024; // Size of the disruptor ring buffer
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mantra_lib v0.1.0 (/opt/rustwide/workdir/mantra_lib)
[INFO] [stdout] warning: unexpected `cfg` condition value: `shmem`
[INFO] [stdout]    --> mantra_lib/src/queue.rs:204:7
[INFO] [stdout]     |
[INFO] [stdout] 204 | #[cfg(feature = "shmem")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `shmem` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `shmem`
[INFO] [stdout]   --> mantra_lib/src/queue.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 |     #[cfg(feature = "shmem")]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `shmem` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fence`
[INFO] [stdout]  --> mantra_lib/src/seqlock.rs:4:41
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::sync::atomic::{compiler_fence, fence, AtomicUsize, Ordering};
[INFO] [stdout]   |                                         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `shmem`
[INFO] [stdout]    --> mantra_lib/src/vector.rs:111:7
[INFO] [stdout]     |
[INFO] [stdout] 111 | #[cfg(feature = "shmem")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `shmem` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Index`
[INFO] [stdout]  --> mantra_lib/src/vector.rs:2:44
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{alloc::Layout, mem::MaybeUninit, ops::Index};
[INFO] [stdout]   |                                            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::slice::SliceIndex`
[INFO] [stdout]  --> mantra_lib/src/seqlock.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::slice::SliceIndex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> mantra_lib/src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     for n in 0..n_readers {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `multithread` is never used
[INFO] [stdout]  --> mantra_lib/src/lib.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn multithread(n_writers: usize, n_readers: usize, tot_messages: usize) {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `power_of_two` is never used
[INFO] [stdout]   --> mantra_lib/src/queue.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn power_of_two(mut v: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `version` is never used
[INFO] [stdout]    --> mantra_lib/src/queue.rs:174:8
[INFO] [stdout]     |
[INFO] [stdout] 86  | impl<T: Copy> Queue<T> {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 174 |     fn version(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> mantra_lib/src/lib.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         h.join();
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let _ = h.join();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling benchmark_runner v0.1.0 (/opt/rustwide/workdir/benchmark_runner)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> mantra_lib/src/lib.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         h.join();
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let _ = h.join();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling loole_benchmark_lib v0.1.0 (/opt/rustwide/workdir/loole_benchmark_lib)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> mantra_lib/src/lib.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     cons1.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let _ = cons1.join();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling eventador_benchmark_lib v0.1.0 (/opt/rustwide/workdir/eventador_benchmark_lib)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> mantra_lib/src/lib.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     prod1.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 76 |     let _ = prod1.join();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling async_channel_benchmark_lib v0.1.0 (/opt/rustwide/workdir/async_channel_benchmark_lib)
[INFO] [stdout] warning: unused import: `loole::*`
[INFO] [stdout]  --> loole_benchmark_lib/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use loole::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> disruptor_benchmark/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> disruptor_benchmark/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc` and `Mutex`
[INFO] [stdout]  --> eventador_benchmark_lib/src/lib.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> eventador_benchmark_lib/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> concurrent_queue_benchmark/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sequence`
[INFO] [stdout]   --> disruptor_benchmark/src/lib.rs:22:33
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let processor = |e: &Event, sequence: Sequence, end_of_batch: bool| {
[INFO] [stdout]    |                                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sequence`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `end_of_batch`
[INFO] [stdout]   --> disruptor_benchmark/src/lib.rs:22:53
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let processor = |e: &Event, sequence: Sequence, end_of_batch: bool| {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_end_of_batch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BUFFER_SIZE` is never used
[INFO] [stdout]   --> disruptor_benchmark/src/lib.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 |     const BUFFER_SIZE: usize = 1024; // Size of the disruptor ring buffer
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `shmem`
[INFO] [stdout]    --> mantra_lib/src/queue.rs:204:7
[INFO] [stdout]     |
[INFO] [stdout] 204 | #[cfg(feature = "shmem")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `shmem` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `shmem`
[INFO] [stdout]   --> mantra_lib/src/queue.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 |     #[cfg(feature = "shmem")]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `shmem` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `shmem`
[INFO] [stdout]    --> mantra_lib/src/queue.rs:435:11
[INFO] [stdout]     |
[INFO] [stdout] 435 |     #[cfg(feature = "shmem")]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `shmem` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fence`
[INFO] [stdout]  --> mantra_lib/src/seqlock.rs:4:41
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::sync::atomic::{compiler_fence, fence, AtomicUsize, Ordering};
[INFO] [stdout]   |                                         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `shmem`
[INFO] [stdout]    --> mantra_lib/src/vector.rs:111:7
[INFO] [stdout]     |
[INFO] [stdout] 111 | #[cfg(feature = "shmem")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `shmem` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Index`
[INFO] [stdout]  --> mantra_lib/src/vector.rs:2:44
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{alloc::Layout, mem::MaybeUninit, ops::Index};
[INFO] [stdout]   |                                            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::slice::SliceIndex`
[INFO] [stdout]  --> mantra_lib/src/seqlock.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::slice::SliceIndex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> mantra_lib/src/queue.rs:367:17
[INFO] [stdout]     |
[INFO] [stdout] 367 |             for i in 0..20 {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> mantra_lib/src/queue.rs:379:13
[INFO] [stdout]     |
[INFO] [stdout] 379 |         for n in 0..n_readers {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> mantra_lib/src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     for n in 0..n_readers {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `multithread` is never used
[INFO] [stdout]  --> mantra_lib/src/lib.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn multithread(n_writers: usize, n_readers: usize, tot_messages: usize) {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `version` is never used
[INFO] [stdout]    --> mantra_lib/src/queue.rs:174:8
[INFO] [stdout]     |
[INFO] [stdout] 86  | impl<T: Copy> Queue<T> {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 174 |     fn version(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> mantra_lib/src/lib.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         h.join();
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let _ = h.join();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> mantra_lib/src/lib.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         h.join();
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let _ = h.join();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> mantra_lib/src/lib.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     cons1.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let _ = cons1.join();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> mantra_lib/src/lib.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     prod1.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 76 |     let _ = prod1.join();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> mantra_lib/src/queue.rs:408:13
[INFO] [stdout]     |
[INFO] [stdout] 408 |             h.join();
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 408 |             let _ = h.join();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> mantra_lib/src/queue.rs:411:13
[INFO] [stdout]     |
[INFO] [stdout] 411 |             h.join();
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 411 |             let _ = h.join();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "0a37a81adcb102d1ccf3d031e48cf92f82e2fb5a5717e0fa02b5bb3b8f4400ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a37a81adcb102d1ccf3d031e48cf92f82e2fb5a5717e0fa02b5bb3b8f4400ed", kill_on_drop: false }`
[INFO] [stdout] 0a37a81adcb102d1ccf3d031e48cf92f82e2fb5a5717e0fa02b5bb3b8f4400ed
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5fb53d0e56425f4613a92778e3c4f36a8a24211cb0bd60a4cc34595ab762ea02
[INFO] running `Command { std: "docker" "start" "-a" "5fb53d0e56425f4613a92778e3c4f36a8a24211cb0bd60a4cc34595ab762ea02", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `loole::*`
[INFO] [stderr]  --> loole_benchmark_lib/src/lib.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use loole::*;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `loole_benchmark_lib` (lib) generated 1 warning (run `cargo fix --lib -p loole_benchmark_lib` to apply 1 suggestion)
[INFO] [stderr] warning: `loole_benchmark_lib` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> concurrent_queue_benchmark/src/lib.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `concurrent_queue_benchmark` (lib) generated 1 warning (run `cargo fix --lib -p concurrent_queue_benchmark` to apply 1 suggestion)
[INFO] [stderr] warning: `concurrent_queue_benchmark` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: unused imports: `Arc` and `Mutex`
[INFO] [stderr]  --> eventador_benchmark_lib/src/lib.rs:3:17
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::sync::{Arc, Mutex};
[INFO] [stderr]   |                 ^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> eventador_benchmark_lib/src/lib.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `eventador_benchmark_lib` (lib) generated 2 warnings (run `cargo fix --lib -p eventador_benchmark_lib` to apply 2 suggestions)
[INFO] [stderr] warning: `eventador_benchmark_lib` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr] warning: unused import: `core::num`
[INFO] [stderr]  --> disruptor_benchmark/src/lib.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::num;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> disruptor_benchmark/src/lib.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sequence`
[INFO] [stderr]   --> disruptor_benchmark/src/lib.rs:22:33
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let processor = |e: &Event, sequence: Sequence, end_of_batch: bool| {
[INFO] [stderr]    |                                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sequence`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `end_of_batch`
[INFO] [stderr]   --> disruptor_benchmark/src/lib.rs:22:53
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let processor = |e: &Event, sequence: Sequence, end_of_batch: bool| {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_end_of_batch`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `BUFFER_SIZE` is never used
[INFO] [stderr]   --> disruptor_benchmark/src/lib.rs:15:11
[INFO] [stderr]    |
[INFO] [stderr] 15 |     const BUFFER_SIZE: usize = 1024; // Size of the disruptor ring buffer
[INFO] [stderr]    |           ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `disruptor_benchmark` (lib) generated 5 warnings (run `cargo fix --lib -p disruptor_benchmark` to apply 2 suggestions)
[INFO] [stderr] warning: `disruptor_benchmark` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr] warning: unexpected `cfg` condition value: `shmem`
[INFO] [stderr]    --> mantra_lib/src/queue.rs:204:7
[INFO] [stderr]     |
[INFO] [stderr] 204 | #[cfg(feature = "shmem")]
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stderr]     |
[INFO] [stderr]     = note: no expected values for `feature`
[INFO] [stderr]     = help: consider adding `shmem` as a feature in `Cargo.toml`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `shmem`
[INFO] [stderr]   --> mantra_lib/src/queue.rs:18:11
[INFO] [stderr]    |
[INFO] [stderr] 18 |     #[cfg(feature = "shmem")]
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stderr]    |
[INFO] [stderr]    = note: no expected values for `feature`
[INFO] [stderr]    = help: consider adding `shmem` as a feature in `Cargo.toml`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `fence`
[INFO] [stderr]  --> mantra_lib/src/seqlock.rs:4:41
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::sync::atomic::{compiler_fence, fence, AtomicUsize, Ordering};
[INFO] [stderr]   |                                         ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `shmem`
[INFO] [stderr]    --> mantra_lib/src/vector.rs:111:7
[INFO] [stderr]     |
[INFO] [stderr] 111 | #[cfg(feature = "shmem")]
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stderr]     |
[INFO] [stderr]     = note: no expected values for `feature`
[INFO] [stderr]     = help: consider adding `shmem` as a feature in `Cargo.toml`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ops::Index`
[INFO] [stderr]  --> mantra_lib/src/vector.rs:2:44
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{alloc::Layout, mem::MaybeUninit, ops::Index};
[INFO] [stderr]   |                                            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::slice::SliceIndex`
[INFO] [stderr]  --> mantra_lib/src/seqlock.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::slice::SliceIndex;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> mantra_lib/src/lib.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     for n in 0..n_readers {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `multithread` is never used
[INFO] [stderr]  --> mantra_lib/src/lib.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn multithread(n_writers: usize, n_readers: usize, tot_messages: usize) {
[INFO] [stderr]   |    ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `power_of_two` is never used
[INFO] [stderr]   --> mantra_lib/src/queue.rs:71:4
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn power_of_two(mut v: usize) -> usize {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `version` is never used
[INFO] [stderr]    --> mantra_lib/src/queue.rs:174:8
[INFO] [stderr]     |
[INFO] [stderr] 86  | impl<T: Copy> Queue<T> {
[INFO] [stderr]     | ---------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 174 |     fn version(&self) -> usize {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> mantra_lib/src/lib.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |         h.join();
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 40 |         let _ = h.join();
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> mantra_lib/src/lib.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |         h.join();
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 43 |         let _ = h.join();
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> mantra_lib/src/lib.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     cons1.join();
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 75 |     let _ = cons1.join();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> mantra_lib/src/lib.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     prod1.join();
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let _ = prod1.join();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `shmem`
[INFO] [stderr]    --> mantra_lib/src/queue.rs:435:11
[INFO] [stderr]     |
[INFO] [stderr] 435 |     #[cfg(feature = "shmem")]
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stderr]     |
[INFO] [stderr]     = note: no expected values for `feature`
[INFO] [stderr]     = help: consider adding `shmem` as a feature in `Cargo.toml`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> mantra_lib/src/queue.rs:367:17
[INFO] [stderr]     |
[INFO] [stderr] 367 |             for i in 0..20 {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> mantra_lib/src/queue.rs:379:13
[INFO] [stderr]     |
[INFO] [stderr] 379 |         for n in 0..n_readers {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> mantra_lib/src/lib.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     for n in 0..n_readers {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> mantra_lib/src/queue.rs:408:13
[INFO] [stderr]     |
[INFO] [stderr] 408 |             h.join();
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 408 |             let _ = h.join();
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> mantra_lib/src/queue.rs:411:13
[INFO] [stderr]     |
[INFO] [stderr] 411 |             h.join();
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 411 |             let _ = h.join();
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `mantra_lib` (lib) generated 14 warnings (run `cargo fix --lib -p mantra_lib` to apply 2 suggestions)
[INFO] [stderr] warning: `mantra_lib` (lib test) generated 18 warnings (12 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/async_channel_benchmark_lib-a5bb02980d2c0389)
[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 unittests src/main.rs (/opt/rustwide/target/debug/deps/benchmark_runner-72ba447bcf5a3259)
[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 unittests src/lib.rs (/opt/rustwide/target/debug/deps/concurrent_queue_benchmark-139a3003a7e93947)
[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] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/crossbeam_mpsc_benchmark-b49c10d285da9c37)
[INFO] [stdout] 
[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 unittests src/lib.rs (/opt/rustwide/target/debug/deps/disruptor_benchmark-ef10bc72e1b61fc3)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/eventador_benchmark_lib-60994728ff9ee688)
[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] [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 unittests src/lib.rs (/opt/rustwide/target/debug/deps/flume_benchmark_lib-db9b6751712eb77c)
[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 unittests src/lib.rs (/opt/rustwide/target/debug/deps/kanal_benchmark_lib-2ec362730a4e7179)
[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 unittests src/lib.rs (/opt/rustwide/target/debug/deps/loole_benchmark_lib-825ded0410ae0e95)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mantra_lib-ab046154fc0c1421)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test queue::test::basic ... ok
[INFO] [stdout] test queue::test::headersize ... ok
[INFO] [stdout] test queue::test::power_of_two_test ... ok
[INFO] [stderr] 
[INFO] [stderr] thread '<unknown>' has overflowed its stack
[INFO] [stderr] fatal runtime error: stack overflow, aborting
[INFO] [stderr] error: test failed, to rerun pass `-p mantra_lib --lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/mantra_lib-ab046154fc0c1421` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "5fb53d0e56425f4613a92778e3c4f36a8a24211cb0bd60a4cc34595ab762ea02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fb53d0e56425f4613a92778e3c4f36a8a24211cb0bd60a4cc34595ab762ea02", kill_on_drop: false }`
[INFO] [stdout] 5fb53d0e56425f4613a92778e3c4f36a8a24211cb0bd60a4cc34595ab762ea02