[INFO] fetching crate thread-pool 0.1.1...
[INFO] testing thread-pool-0.1.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate thread-pool 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate thread-pool 0.1.1 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate thread-pool 0.1.1
[INFO] finished tweaking crates.io crate thread-pool 0.1.1
[INFO] tweaked toml for crates.io crate thread-pool 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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 two-lock-queue v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6880758a421166855a7de4be79bd1e1de2a1b49f1cbf1fef6f58fb7908f590d1
[INFO] running `Command { std: "docker" "start" "-a" "6880758a421166855a7de4be79bd1e1de2a1b49f1cbf1fef6f58fb7908f590d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6880758a421166855a7de4be79bd1e1de2a1b49f1cbf1fef6f58fb7908f590d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6880758a421166855a7de4be79bd1e1de2a1b49f1cbf1fef6f58fb7908f590d1", kill_on_drop: false }`
[INFO] [stdout] 6880758a421166855a7de4be79bd1e1de2a1b49f1cbf1fef6f58fb7908f590d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc6917c0741fbc0be17bf42ab10d569d8823a078b00b7e4306e0613b54cc17db
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fc6917c0741fbc0be17bf42ab10d569d8823a078b00b7e4306e0613b54cc17db", kill_on_drop: false }`
[INFO] [stderr]    Compiling two-lock-queue v0.1.1
[INFO] [stderr]    Compiling thread-pool v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task.rs:32:19
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl Task for Box<TaskBox> {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | #![deny(warnings, missing_docs, missing_debug_implementations)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 32 - impl Task for Box<TaskBox> {
[INFO] [stdout] 32 + impl Task for Box<dyn TaskBox> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/thread_pool.rs:41:29
[INFO] [stdout]    |
[INFO] [stdout] 41 |     after_start: Option<Arc<Fn() + Send + Sync>>,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 41 -     after_start: Option<Arc<Fn() + Send + Sync>>,
[INFO] [stdout] 41 +     after_start: Option<Arc<dyn Fn() + Send + Sync>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/thread_pool.rs:42:29
[INFO] [stdout]    |
[INFO] [stdout] 42 |     before_stop: Option<Arc<Fn() + Send + Sync>>,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     before_stop: Option<Arc<Fn() + Send + Sync>>,
[INFO] [stdout] 42 +     before_stop: Option<Arc<dyn Fn() + Send + Sync>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:494:17
[INFO] [stdout]     |
[INFO] [stdout] 494 | impl Sender<Box<TaskBox>> {
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 494 - impl Sender<Box<TaskBox>> {
[INFO] [stdout] 494 + impl Sender<Box<dyn TaskBox>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:499:67
[INFO] [stdout]     |
[INFO] [stdout] 499 |     pub fn send_fn<F>(&self, task: F) -> Result<(), SendError<Box<TaskBox>>>
[INFO] [stdout]     |                                                                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 499 -     pub fn send_fn<F>(&self, task: F) -> Result<(), SendError<Box<TaskBox>>>
[INFO] [stdout] 499 +     pub fn send_fn<F>(&self, task: F) -> Result<(), SendError<Box<dyn TaskBox>>>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:509:44
[INFO] [stdout]     |
[INFO] [stdout] 509 |         -> Result<(), SendTimeoutError<Box<TaskBox>>>
[INFO] [stdout]     |                                            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 509 -         -> Result<(), SendTimeoutError<Box<TaskBox>>>
[INFO] [stdout] 509 +         -> Result<(), SendTimeoutError<Box<dyn TaskBox>>>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:519:40
[INFO] [stdout]     |
[INFO] [stdout] 519 |         -> Result<(), TrySendError<Box<TaskBox>>>
[INFO] [stdout]     |                                        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 519 -         -> Result<(), TrySendError<Box<TaskBox>>>
[INFO] [stdout] 519 +         -> Result<(), TrySendError<Box<dyn TaskBox>>>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/state.rs:42:34
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let actual = self.atomic.compare_and_swap(expect.as_usize(), val.as_usize(), SeqCst);
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | #![deny(warnings, missing_docs, missing_debug_implementations)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/state.rs:49:40
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let actual_usize = self.atomic.compare_and_swap(expect_usize, next_usize, SeqCst);
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/state.rs:64:21
[INFO] [stdout]    |
[INFO] [stdout] 64 |         self.atomic.compare_and_swap(num, num - (1 << LIFECYCLE_BITS), SeqCst) == num
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:502:23
[INFO] [stdout]     |
[INFO] [stdout] 502 |         let task: Box<TaskBox> = Box::new(task);
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 502 -         let task: Box<TaskBox> = Box::new(task);
[INFO] [stdout] 502 +         let task: Box<dyn TaskBox> = Box::new(task);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:512:23
[INFO] [stdout]     |
[INFO] [stdout] 512 |         let task: Box<TaskBox> = Box::new(task);
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 512 -         let task: Box<TaskBox> = Box::new(task);
[INFO] [stdout] 512 +         let task: Box<dyn TaskBox> = Box::new(task);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:522:23
[INFO] [stdout]     |
[INFO] [stdout] 522 |         let task: Box<TaskBox> = Box::new(task);
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 522 -         let task: Box<TaskBox> = Box::new(task);
[INFO] [stdout] 522 +         let task: Box<dyn TaskBox> = Box::new(task);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "fc6917c0741fbc0be17bf42ab10d569d8823a078b00b7e4306e0613b54cc17db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc6917c0741fbc0be17bf42ab10d569d8823a078b00b7e4306e0613b54cc17db", kill_on_drop: false }`
[INFO] [stdout] fc6917c0741fbc0be17bf42ab10d569d8823a078b00b7e4306e0613b54cc17db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 59d345003dd990d6ace44e0f3a38a6f539186be8488de3f2e25e635ce914bef5
[INFO] running `Command { std: "docker" "start" "-a" "59d345003dd990d6ace44e0f3a38a6f539186be8488de3f2e25e635ce914bef5", kill_on_drop: false }`
[INFO] [stderr]    Compiling thread-pool v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task.rs:32:19
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl Task for Box<TaskBox> {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | #![deny(warnings, missing_docs, missing_debug_implementations)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 32 - impl Task for Box<TaskBox> {
[INFO] [stdout] 32 + impl Task for Box<dyn TaskBox> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/thread_pool.rs:41:29
[INFO] [stdout]    |
[INFO] [stdout] 41 |     after_start: Option<Arc<Fn() + Send + Sync>>,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 41 -     after_start: Option<Arc<Fn() + Send + Sync>>,
[INFO] [stdout] 41 +     after_start: Option<Arc<dyn Fn() + Send + Sync>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/thread_pool.rs:42:29
[INFO] [stdout]    |
[INFO] [stdout] 42 |     before_stop: Option<Arc<Fn() + Send + Sync>>,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     before_stop: Option<Arc<Fn() + Send + Sync>>,
[INFO] [stdout] 42 +     before_stop: Option<Arc<dyn Fn() + Send + Sync>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:494:17
[INFO] [stdout]     |
[INFO] [stdout] 494 | impl Sender<Box<TaskBox>> {
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 494 - impl Sender<Box<TaskBox>> {
[INFO] [stdout] 494 + impl Sender<Box<dyn TaskBox>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:499:67
[INFO] [stdout]     |
[INFO] [stdout] 499 |     pub fn send_fn<F>(&self, task: F) -> Result<(), SendError<Box<TaskBox>>>
[INFO] [stdout]     |                                                                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 499 -     pub fn send_fn<F>(&self, task: F) -> Result<(), SendError<Box<TaskBox>>>
[INFO] [stdout] 499 +     pub fn send_fn<F>(&self, task: F) -> Result<(), SendError<Box<dyn TaskBox>>>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:509:44
[INFO] [stdout]     |
[INFO] [stdout] 509 |         -> Result<(), SendTimeoutError<Box<TaskBox>>>
[INFO] [stdout]     |                                            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 509 -         -> Result<(), SendTimeoutError<Box<TaskBox>>>
[INFO] [stdout] 509 +         -> Result<(), SendTimeoutError<Box<dyn TaskBox>>>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:519:40
[INFO] [stdout]     |
[INFO] [stdout] 519 |         -> Result<(), TrySendError<Box<TaskBox>>>
[INFO] [stdout]     |                                        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 519 -         -> Result<(), TrySendError<Box<TaskBox>>>
[INFO] [stdout] 519 +         -> Result<(), TrySendError<Box<dyn TaskBox>>>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/state.rs:42:34
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let actual = self.atomic.compare_and_swap(expect.as_usize(), val.as_usize(), SeqCst);
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | #![deny(warnings, missing_docs, missing_debug_implementations)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/state.rs:49:40
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let actual_usize = self.atomic.compare_and_swap(expect_usize, next_usize, SeqCst);
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/state.rs:64:21
[INFO] [stdout]    |
[INFO] [stdout] 64 |         self.atomic.compare_and_swap(num, num - (1 << LIFECYCLE_BITS), SeqCst) == num
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:502:23
[INFO] [stdout]     |
[INFO] [stdout] 502 |         let task: Box<TaskBox> = Box::new(task);
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 502 -         let task: Box<TaskBox> = Box::new(task);
[INFO] [stdout] 502 +         let task: Box<dyn TaskBox> = Box::new(task);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:512:23
[INFO] [stdout]     |
[INFO] [stdout] 512 |         let task: Box<TaskBox> = Box::new(task);
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 512 -         let task: Box<TaskBox> = Box::new(task);
[INFO] [stdout] 512 +         let task: Box<dyn TaskBox> = Box::new(task);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:522:23
[INFO] [stdout]     |
[INFO] [stdout] 522 |         let task: Box<TaskBox> = Box::new(task);
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 522 -         let task: Box<TaskBox> = Box::new(task);
[INFO] [stdout] 522 +         let task: Box<dyn TaskBox> = Box::new(task);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> tests/test_thread_pool.rs:312:28
[INFO] [stdout]     |
[INFO] [stdout] 312 |     use std::sync::atomic::ATOMIC_USIZE_INIT;
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> tests/test_thread_pool.rs:314:38
[INFO] [stdout]     |
[INFO] [stdout] 314 |     static NUM_STARTS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicUsize::new(0)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> tests/test_thread_pool.rs:315:37
[INFO] [stdout]     |
[INFO] [stdout] 315 |     static NUM_STOPS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicUsize::new(0)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/test_thread_pool.rs:56:38
[INFO] [stdout]    |
[INFO] [stdout] 56 |     format!("{:?}", ThreadPool::<Box<TaskBox>>::fixed_size(1));
[INFO] [stdout]    |                                      ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 56 -     format!("{:?}", ThreadPool::<Box<TaskBox>>::fixed_size(1));
[INFO] [stdout] 56 +     format!("{:?}", ThreadPool::<Box<dyn TaskBox>>::fixed_size(1));
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/test_thread_pool.rs:83:22
[INFO] [stdout]    |
[INFO] [stdout] 83 |     ThreadPool::<Box<TaskBox>>::fixed_size(num_cpus::get() + 1);
[INFO] [stdout]    |                      ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 83 -     ThreadPool::<Box<TaskBox>>::fixed_size(num_cpus::get() + 1);
[INFO] [stdout] 83 +     ThreadPool::<Box<dyn TaskBox>>::fixed_size(num_cpus::get() + 1);
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task.rs:32:19
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl Task for Box<TaskBox> {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | #![deny(warnings, missing_docs, missing_debug_implementations)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 32 - impl Task for Box<TaskBox> {
[INFO] [stdout] 32 + impl Task for Box<dyn TaskBox> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/thread_pool.rs:41:29
[INFO] [stdout]    |
[INFO] [stdout] 41 |     after_start: Option<Arc<Fn() + Send + Sync>>,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 41 -     after_start: Option<Arc<Fn() + Send + Sync>>,
[INFO] [stdout] 41 +     after_start: Option<Arc<dyn Fn() + Send + Sync>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/thread_pool.rs:42:29
[INFO] [stdout]    |
[INFO] [stdout] 42 |     before_stop: Option<Arc<Fn() + Send + Sync>>,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     before_stop: Option<Arc<Fn() + Send + Sync>>,
[INFO] [stdout] 42 +     before_stop: Option<Arc<dyn Fn() + Send + Sync>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:494:17
[INFO] [stdout]     |
[INFO] [stdout] 494 | impl Sender<Box<TaskBox>> {
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 494 - impl Sender<Box<TaskBox>> {
[INFO] [stdout] 494 + impl Sender<Box<dyn TaskBox>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:499:67
[INFO] [stdout]     |
[INFO] [stdout] 499 |     pub fn send_fn<F>(&self, task: F) -> Result<(), SendError<Box<TaskBox>>>
[INFO] [stdout]     |                                                                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 499 -     pub fn send_fn<F>(&self, task: F) -> Result<(), SendError<Box<TaskBox>>>
[INFO] [stdout] 499 +     pub fn send_fn<F>(&self, task: F) -> Result<(), SendError<Box<dyn TaskBox>>>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:509:44
[INFO] [stdout]     |
[INFO] [stdout] 509 |         -> Result<(), SendTimeoutError<Box<TaskBox>>>
[INFO] [stdout]     |                                            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 509 -         -> Result<(), SendTimeoutError<Box<TaskBox>>>
[INFO] [stdout] 509 +         -> Result<(), SendTimeoutError<Box<dyn TaskBox>>>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:519:40
[INFO] [stdout]     |
[INFO] [stdout] 519 |         -> Result<(), TrySendError<Box<TaskBox>>>
[INFO] [stdout]     |                                        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 519 -         -> Result<(), TrySendError<Box<TaskBox>>>
[INFO] [stdout] 519 +         -> Result<(), TrySendError<Box<dyn TaskBox>>>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/state.rs:42:34
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let actual = self.atomic.compare_and_swap(expect.as_usize(), val.as_usize(), SeqCst);
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | #![deny(warnings, missing_docs, missing_debug_implementations)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/state.rs:49:40
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let actual_usize = self.atomic.compare_and_swap(expect_usize, next_usize, SeqCst);
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/state.rs:64:21
[INFO] [stdout]    |
[INFO] [stdout] 64 |         self.atomic.compare_and_swap(num, num - (1 << LIFECYCLE_BITS), SeqCst) == num
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:502:23
[INFO] [stdout]     |
[INFO] [stdout] 502 |         let task: Box<TaskBox> = Box::new(task);
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 502 -         let task: Box<TaskBox> = Box::new(task);
[INFO] [stdout] 502 +         let task: Box<dyn TaskBox> = Box::new(task);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:512:23
[INFO] [stdout]     |
[INFO] [stdout] 512 |         let task: Box<TaskBox> = Box::new(task);
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 512 -         let task: Box<TaskBox> = Box::new(task);
[INFO] [stdout] 512 +         let task: Box<dyn TaskBox> = Box::new(task);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/thread_pool.rs:522:23
[INFO] [stdout]     |
[INFO] [stdout] 522 |         let task: Box<TaskBox> = Box::new(task);
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 522 -         let task: Box<TaskBox> = Box::new(task);
[INFO] [stdout] 522 +         let task: Box<dyn TaskBox> = Box::new(task);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "59d345003dd990d6ace44e0f3a38a6f539186be8488de3f2e25e635ce914bef5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59d345003dd990d6ace44e0f3a38a6f539186be8488de3f2e25e635ce914bef5", kill_on_drop: false }`
[INFO] [stdout] 59d345003dd990d6ace44e0f3a38a6f539186be8488de3f2e25e635ce914bef5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d653a6051804b263bdea3a2995137209c0f86b10a95004c4898e330547f6ef71
[INFO] running `Command { std: "docker" "start" "-a" "d653a6051804b263bdea3a2995137209c0f86b10a95004c4898e330547f6ef71", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/task.rs:32:19
[INFO] [stderr]    |
[INFO] [stderr] 32 | impl Task for Box<TaskBox> {
[INFO] [stderr]    |                   ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 | #![deny(warnings, missing_docs, missing_debug_implementations)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 32 - impl Task for Box<TaskBox> {
[INFO] [stderr] 32 + impl Task for Box<dyn TaskBox> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/thread_pool.rs:41:29
[INFO] [stderr]    |
[INFO] [stderr] 41 |     after_start: Option<Arc<Fn() + Send + Sync>>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 41 -     after_start: Option<Arc<Fn() + Send + Sync>>,
[INFO] [stderr] 41 +     after_start: Option<Arc<dyn Fn() + Send + Sync>>,
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/thread_pool.rs:42:29
[INFO] [stderr]    |
[INFO] [stderr] 42 |     before_stop: Option<Arc<Fn() + Send + Sync>>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 42 -     before_stop: Option<Arc<Fn() + Send + Sync>>,
[INFO] [stderr] 42 +     before_stop: Option<Arc<dyn Fn() + Send + Sync>>,
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/thread_pool.rs:494:17
[INFO] [stderr]     |
[INFO] [stderr] 494 | impl Sender<Box<TaskBox>> {
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 494 - impl Sender<Box<TaskBox>> {
[INFO] [stderr] 494 + impl Sender<Box<dyn TaskBox>> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/thread_pool.rs:499:67
[INFO] [stderr]     |
[INFO] [stderr] 499 |     pub fn send_fn<F>(&self, task: F) -> Result<(), SendError<Box<TaskBox>>>
[INFO] [stderr]     |                                                                   ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 499 -     pub fn send_fn<F>(&self, task: F) -> Result<(), SendError<Box<TaskBox>>>
[INFO] [stderr] 499 +     pub fn send_fn<F>(&self, task: F) -> Result<(), SendError<Box<dyn TaskBox>>>
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/thread_pool.rs:509:44
[INFO] [stderr]     |
[INFO] [stderr] 509 |         -> Result<(), SendTimeoutError<Box<TaskBox>>>
[INFO] [stderr]     |                                            ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 509 -         -> Result<(), SendTimeoutError<Box<TaskBox>>>
[INFO] [stderr] 509 +         -> Result<(), SendTimeoutError<Box<dyn TaskBox>>>
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/thread_pool.rs:519:40
[INFO] [stderr]     |
[INFO] [stderr] 519 |         -> Result<(), TrySendError<Box<TaskBox>>>
[INFO] [stderr]     |                                        ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 519 -         -> Result<(), TrySendError<Box<TaskBox>>>
[INFO] [stderr] 519 +         -> Result<(), TrySendError<Box<dyn TaskBox>>>
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]   --> src/state.rs:42:34
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let actual = self.atomic.compare_and_swap(expect.as_usize(), val.as_usize(), SeqCst);
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 | #![deny(warnings, missing_docs, missing_debug_implementations)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]   --> src/state.rs:49:40
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let actual_usize = self.atomic.compare_and_swap(expect_usize, next_usize, SeqCst);
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]   --> src/state.rs:64:21
[INFO] [stderr]    |
[INFO] [stderr] 64 |         self.atomic.compare_and_swap(num, num - (1 << LIFECYCLE_BITS), SeqCst) == num
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/thread_pool.rs:502:23
[INFO] [stderr]     |
[INFO] [stderr] 502 |         let task: Box<TaskBox> = Box::new(task);
[INFO] [stderr]     |                       ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 502 -         let task: Box<TaskBox> = Box::new(task);
[INFO] [stderr] 502 +         let task: Box<dyn TaskBox> = Box::new(task);
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/thread_pool.rs:512:23
[INFO] [stderr]     |
[INFO] [stderr] 512 |         let task: Box<TaskBox> = Box::new(task);
[INFO] [stderr]     |                       ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 512 -         let task: Box<TaskBox> = Box::new(task);
[INFO] [stderr] 512 +         let task: Box<dyn TaskBox> = Box::new(task);
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/thread_pool.rs:522:23
[INFO] [stderr]     |
[INFO] [stderr] 522 |         let task: Box<TaskBox> = Box::new(task);
[INFO] [stderr]     |                       ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 522 -         let task: Box<TaskBox> = Box::new(task);
[INFO] [stderr] 522 +         let task: Box<dyn TaskBox> = Box::new(task);
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: `thread-pool` (lib) generated 13 warnings
[INFO] [stderr] warning: `thread-pool` (lib test) generated 13 warnings (13 duplicates)
[INFO] [stderr] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stderr]    --> tests/test_thread_pool.rs:312:28
[INFO] [stderr]     |
[INFO] [stderr] 312 |     use std::sync::atomic::ATOMIC_USIZE_INIT;
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stderr]    --> tests/test_thread_pool.rs:314:38
[INFO] [stderr]     |
[INFO] [stderr] 314 |     static NUM_STARTS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicUsize::new(0)`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stderr]    --> tests/test_thread_pool.rs:315:37
[INFO] [stderr]     |
[INFO] [stderr] 315 |     static NUM_STOPS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicUsize::new(0)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/test_thread_pool.rs:56:38
[INFO] [stderr]    |
[INFO] [stderr] 56 |     format!("{:?}", ThreadPool::<Box<TaskBox>>::fixed_size(1));
[INFO] [stderr]    |                                      ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 56 -     format!("{:?}", ThreadPool::<Box<TaskBox>>::fixed_size(1));
[INFO] [stderr] 56 +     format!("{:?}", ThreadPool::<Box<dyn TaskBox>>::fixed_size(1));
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/test_thread_pool.rs:83:22
[INFO] [stderr]    |
[INFO] [stderr] 83 |     ThreadPool::<Box<TaskBox>>::fixed_size(num_cpus::get() + 1);
[INFO] [stderr]    |                      ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 83 -     ThreadPool::<Box<TaskBox>>::fixed_size(num_cpus::get() + 1);
[INFO] [stderr] 83 +     ThreadPool::<Box<dyn TaskBox>>::fixed_size(num_cpus::get() + 1);
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `thread-pool` (test "test_thread_pool") generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/thread_pool-074b0a2ebe56201e)
[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/test_thread_pool.rs (/opt/rustwide/target/debug/deps/test_thread_pool-fb83bfa13d259ee2)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test clone ... ok
[INFO] [stdout] test thread_pool_shutdown_by_calling_fn ... ok
[INFO] [stdout] test type_bounds ... ok
[INFO] [stdout] test thread_pool_shutdown_by_dropping_sender ... ok
[INFO] [stdout] test num_cpus_plus_1 ... ok
[INFO] [stdout] test one_thread_basic ... ok
[INFO] [stdout] test debug ... ok
[INFO] [stdout] test grow_pool ... ok
[INFO] [stdout] test panic_in_task ... ok
[INFO] [stdout] test shrink_stretch_pool ... ok
[INFO] [stdout] test thread_pool_shutdown_now ... ok
[INFO] [stdout] test shrink_core_pool ... ok
[INFO] [stdout] test lifecycle_test ... ok
[INFO] [stdout] test two_thread_basic ... ok
[INFO] [stdout] test two_threads_task_queue_up ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.50s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests thread-pool
[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" "d653a6051804b263bdea3a2995137209c0f86b10a95004c4898e330547f6ef71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d653a6051804b263bdea3a2995137209c0f86b10a95004c4898e330547f6ef71", kill_on_drop: false }`
[INFO] [stdout] d653a6051804b263bdea3a2995137209c0f86b10a95004c4898e330547f6ef71