[INFO] cloning repository https://github.com/PolymagicYang/rust-toylock [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PolymagicYang/rust-toylock" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPolymagicYang%2Frust-toylock", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPolymagicYang%2Frust-toylock'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c2f72daefbf30876a568a86005ad5465442851d0 [INFO] testing PolymagicYang/rust-toylock against 1.60.0 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPolymagicYang%2Frust-toylock" "/workspace/builds/worker-92/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-92/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/PolymagicYang/rust-toylock on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/PolymagicYang/rust-toylock [INFO] finished tweaking git repo https://github.com/PolymagicYang/rust-toylock [INFO] tweaked toml for git repo https://github.com/PolymagicYang/rust-toylock written to /workspace/builds/worker-92/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cd3a0ddb8afb6222b71dd66b09a20976f61f59822ca723169647ea497de7e784 [INFO] running `Command { std: "docker" "start" "-a" "cd3a0ddb8afb6222b71dd66b09a20976f61f59822ca723169647ea497de7e784", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cd3a0ddb8afb6222b71dd66b09a20976f61f59822ca723169647ea497de7e784", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd3a0ddb8afb6222b71dd66b09a20976f61f59822ca723169647ea497de7e784", kill_on_drop: false }` [INFO] [stdout] cd3a0ddb8afb6222b71dd66b09a20976f61f59822ca723169647ea497de7e784 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b3c19a3e31c130d8cd6e8f0da7b1a7a411cbbee9623b9709d5335f47efccdd78 [INFO] running `Command { std: "docker" "start" "-a" "b3c19a3e31c130d8cd6e8f0da7b1a7a411cbbee9623b9709d5335f47efccdd78", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.123 [INFO] [stderr] Compiling ppv-lite86 v0.2.16 [INFO] [stderr] Compiling getrandom v0.2.6 [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 rust-toylock v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `JoinHandle`, `self`, `time::Duration` [INFO] [stdout] --> src/ticket_lock.rs:9:92 [INFO] [stdout] | [INFO] [stdout] 9 | use std::{sync::atomic::{AtomicUsize, Ordering}, cell::UnsafeCell, ops::DerefMut, thread::{self, JoinHandle}, time::Duration}; [INFO] [stdout] | ^^^^ ^^^^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `thread`, `time::Duration` [INFO] [stdout] --> src/CLH_lock.rs:4:80 [INFO] [stdout] | [INFO] [stdout] 4 | use std::{sync::atomic::{ AtomicBool, AtomicPtr, Ordering }, cell::UnsafeCell, thread, ops::{Deref, DerefMut}, time::Duration}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `lock` [INFO] [stdout] --> src/spin_lock.rs:13:2 [INFO] [stdout] | [INFO] [stdout] 13 | lock: &'a RawLock, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `LockGuard` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/spin_lock.rs:10:10 [INFO] [stdout] | [INFO] [stdout] 10 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/spin_lock.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 27 | fn new(data: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `unlock` [INFO] [stdout] --> src/spin_lock.rs:44:5 [INFO] [stdout] | [INFO] [stdout] 44 | fn unlock(&self) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/CLH_lock.rs:37:8 [INFO] [stdout] | [INFO] [stdout] 37 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/CLH_lock.rs:84:8 [INFO] [stdout] | [INFO] [stdout] 84 | fn new(data: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: module `CLH_lock` should have a snake case name [INFO] [stdout] --> src/lib.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | pub mod CLH_lock; [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `clh_lock` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 01s [INFO] running `Command { std: "docker" "inspect" "b3c19a3e31c130d8cd6e8f0da7b1a7a411cbbee9623b9709d5335f47efccdd78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b3c19a3e31c130d8cd6e8f0da7b1a7a411cbbee9623b9709d5335f47efccdd78", kill_on_drop: false }` [INFO] [stdout] b3c19a3e31c130d8cd6e8f0da7b1a7a411cbbee9623b9709d5335f47efccdd78 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1f93f2f6c14b64ea5274add5208b0cc1ddea3535414eabd9a1624e55ea730542 [INFO] running `Command { std: "docker" "start" "-a" "1f93f2f6c14b64ea5274add5208b0cc1ddea3535414eabd9a1624e55ea730542", kill_on_drop: false }` [INFO] [stdout] warning: unused imports: `JoinHandle`, `self`, `time::Duration` [INFO] [stdout] --> src/ticket_lock.rs:9:92 [INFO] [stdout] | [INFO] [stdout] 9 | use std::{sync::atomic::{AtomicUsize, Ordering}, cell::UnsafeCell, ops::DerefMut, thread::{self, JoinHandle}, time::Duration}; [INFO] [stdout] | ^^^^ ^^^^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `thread`, `time::Duration` [INFO] [stdout] --> src/CLH_lock.rs:4:80 [INFO] [stdout] | [INFO] [stdout] 4 | use std::{sync::atomic::{ AtomicBool, AtomicPtr, Ordering }, cell::UnsafeCell, thread, ops::{Deref, DerefMut}, time::Duration}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rust-toylock v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field is never read: `lock` [INFO] [stdout] --> src/spin_lock.rs:13:2 [INFO] [stdout] | [INFO] [stdout] 13 | lock: &'a RawLock, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `LockGuard` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/spin_lock.rs:10:10 [INFO] [stdout] | [INFO] [stdout] 10 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/spin_lock.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 27 | fn new(data: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `unlock` [INFO] [stdout] --> src/spin_lock.rs:44:5 [INFO] [stdout] | [INFO] [stdout] 44 | fn unlock(&self) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/CLH_lock.rs:37:8 [INFO] [stdout] | [INFO] [stdout] 37 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/CLH_lock.rs:84:8 [INFO] [stdout] | [INFO] [stdout] 84 | fn new(data: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: module `CLH_lock` should have a snake case name [INFO] [stdout] --> src/lib.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | pub mod CLH_lock; [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `clh_lock` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `JoinHandle` [INFO] [stdout] --> src/ticket_lock.rs:9:98 [INFO] [stdout] | [INFO] [stdout] 9 | use std::{sync::atomic::{AtomicUsize, Ordering}, cell::UnsafeCell, ops::DerefMut, thread::{self, JoinHandle}, time::Duration}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `joins` [INFO] [stdout] --> src/ticket_lock.rs:98:6 [INFO] [stdout] | [INFO] [stdout] 98 | let joins: Vec<_> = (1..100) [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_joins` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: module `CLH_lock` should have a snake case name [INFO] [stdout] --> src/lib.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | pub mod CLH_lock; [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `clh_lock` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.84s [INFO] running `Command { std: "docker" "inspect" "1f93f2f6c14b64ea5274add5208b0cc1ddea3535414eabd9a1624e55ea730542", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f93f2f6c14b64ea5274add5208b0cc1ddea3535414eabd9a1624e55ea730542", kill_on_drop: false }` [INFO] [stdout] 1f93f2f6c14b64ea5274add5208b0cc1ddea3535414eabd9a1624e55ea730542 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 66d74d7b945d3c1b20a79894ef647a7d6c1bd3f6740879ab543be823842fcb0f [INFO] running `Command { std: "docker" "start" "-a" "66d74d7b945d3c1b20a79894ef647a7d6c1bd3f6740879ab543be823842fcb0f", kill_on_drop: false }` [INFO] [stderr] warning: unused imports: `JoinHandle`, `self`, `time::Duration` [INFO] [stderr] --> src/ticket_lock.rs:9:92 [INFO] [stderr] | [INFO] [stderr] 9 | use std::{sync::atomic::{AtomicUsize, Ordering}, cell::UnsafeCell, ops::DerefMut, thread::{self, JoinHandle}, time::Duration}; [INFO] [stderr] | ^^^^ ^^^^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time::Duration` [INFO] [stderr] --> src/CLH_lock.rs:4:80 [INFO] [stderr] | [INFO] [stderr] 4 | use std::{sync::atomic::{ AtomicBool, AtomicPtr, Ordering }, cell::UnsafeCell, thread, ops::{Deref, DerefMut}, time::Duration}; [INFO] [stderr] | ^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `lock` [INFO] [stderr] --> src/spin_lock.rs:13:2 [INFO] [stderr] | [INFO] [stderr] 13 | lock: &'a RawLock, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] note: `LockGuard` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/spin_lock.rs:10:10 [INFO] [stderr] | [INFO] [stderr] 10 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/spin_lock.rs:27:5 [INFO] [stderr] | [INFO] [stderr] 27 | fn new(data: T) -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `unlock` [INFO] [stderr] --> src/spin_lock.rs:44:5 [INFO] [stderr] | [INFO] [stderr] 44 | fn unlock(&self) { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/CLH_lock.rs:37:8 [INFO] [stderr] | [INFO] [stderr] 37 | fn new() -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/CLH_lock.rs:84:8 [INFO] [stderr] | [INFO] [stderr] 84 | fn new(data: T) -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: module `CLH_lock` should have a snake case name [INFO] [stderr] --> src/lib.rs:3:9 [INFO] [stderr] | [INFO] [stderr] 3 | pub mod CLH_lock; [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `clh_lock` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `JoinHandle` [INFO] [stderr] --> src/ticket_lock.rs:9:98 [INFO] [stderr] | [INFO] [stderr] 9 | use std::{sync::atomic::{AtomicUsize, Ordering}, cell::UnsafeCell, ops::DerefMut, thread::{self, JoinHandle}, time::Duration}; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `joins` [INFO] [stderr] --> src/ticket_lock.rs:98:6 [INFO] [stderr] | [INFO] [stderr] 98 | let joins: Vec<_> = (1..100) [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_joins` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `rust-toylock` (lib) generated 8 warnings [INFO] [stderr] warning: `rust-toylock` (lib test) generated 3 warnings (1 duplicate) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_toylock-bd4889be262f686a) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test spin_lock::test ... ok [INFO] [stdout] test CLH_lock::test ... ok [INFO] [stdout] test CLH_lock::test1 ... ok [INFO] [stdout] test ticket_lock::test ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.14s [INFO] [stdout] [INFO] [stderr] Running tests/push_values.rs (/opt/rustwide/target/debug/deps/push_values-9ad80aef251f3f54) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stderr] Doc-tests rust-toylock [INFO] [stdout] test test::push_u32_lock ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.09s [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] running `Command { std: "docker" "inspect" "66d74d7b945d3c1b20a79894ef647a7d6c1bd3f6740879ab543be823842fcb0f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "66d74d7b945d3c1b20a79894ef647a7d6c1bd3f6740879ab543be823842fcb0f", kill_on_drop: false }` [INFO] [stdout] 66d74d7b945d3c1b20a79894ef647a7d6c1bd3f6740879ab543be823842fcb0f