[INFO] fetching crate scoped-pool 1.0.0...
[INFO] testing scoped-pool-1.0.0 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate scoped-pool 1.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate scoped-pool 1.0.0
[INFO] finished tweaking crates.io crate scoped-pool 1.0.0
[INFO] tweaked toml for crates.io crate scoped-pool 1.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate scoped-pool 1.0.0 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] [stderr]       Adding crossbeam v0.2.12 (available: v0.8.4)
[INFO] [stderr]       Adding itertools v0.4.19 (available: v0.14.0)
[INFO] [stderr]       Adding rand v0.3.23 (available: v0.10.1)
[INFO] [stderr]       Adding scopeguard v0.1.2 (available: v1.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand v0.3.23
[INFO] [stderr]   Downloaded rand v0.4.6
[INFO] [stderr]   Downloaded itertools v0.4.19
[INFO] [stderr]   Downloaded variance v0.1.3
[INFO] [stderr]   Downloaded scopeguard v0.1.2
[INFO] [stderr]   Downloaded crossbeam v0.2.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14932698da2cf00d51e9c0e0a7f6ae73edf9f28a865032031402bb0b0280d63a
[INFO] running `Command { std: "docker" "start" "-a" "14932698da2cf00d51e9c0e0a7f6ae73edf9f28a865032031402bb0b0280d63a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14932698da2cf00d51e9c0e0a7f6ae73edf9f28a865032031402bb0b0280d63a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14932698da2cf00d51e9c0e0a7f6ae73edf9f28a865032031402bb0b0280d63a", kill_on_drop: false }`
[INFO] [stdout] 14932698da2cf00d51e9c0e0a7f6ae73edf9f28a865032031402bb0b0280d63a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ec5838bedbbdfaf0a732d3ed4e63af3d6312786d3c90c63ae50a5aea7b868e0
[INFO] running `Command { std: "docker" "start" "-a" "2ec5838bedbbdfaf0a732d3ed4e63af3d6312786d3c90c63ae50a5aea7b868e0", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling variance v0.1.3
[INFO] [stderr]    Compiling crossbeam v0.2.12
[INFO] [stderr]    Compiling scopeguard v0.1.2
[INFO] [stderr]    Compiling scoped-pool v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:366:14
[INFO] [stdout]     |
[INFO] [stdout] 366 |     Task(Box<Task + Send>, Arc<WaitGroup>)
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 366 |     Task(Box<dyn Task + Send>, Arc<WaitGroup>)
[INFO] [stdout]     |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:299:34
[INFO] [stdout]     |
[INFO] [stdout] 299 |             mem::transmute::<Box<Task + Send + 'scope>,
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 299 |             mem::transmute::<Box<dyn Task + Send + 'scope>,
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:300:34
[INFO] [stdout]     |
[INFO] [stdout] 300 | ...                   Box<Task + Send + 'static>>(Box::new(job))
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 300 |                              Box<dyn Task + Send + 'static>>(Box::new(job))
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present
[INFO] [stdout]    --> src/lib.rs:325:44
[INFO] [stdout]     |
[INFO] [stdout] 325 |         let scope = unsafe { self.refine::<'smaller>() };
[INFO] [stdout]     |                                            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 355 |     unsafe fn refine<'other>(&self) -> Scope<'other> where 'scope: 'other {
[INFO] [stdout]     |                              - the late bound lifetime parameter is introduced here
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868>
[INFO] [stdout]     = note: `#[warn(late_bound_lifetime_arguments)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:465:17
[INFO] [stdout]     |
[INFO] [stdout] 465 | struct Sentinel(Pool, Option<Arc<WaitGroup>>);
[INFO] [stdout]     |        -------- ^^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 465 - struct Sentinel(Pool, Option<Arc<WaitGroup>>);
[INFO] [stdout] 465 + struct Sentinel((), Option<Arc<WaitGroup>>);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "2ec5838bedbbdfaf0a732d3ed4e63af3d6312786d3c90c63ae50a5aea7b868e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ec5838bedbbdfaf0a732d3ed4e63af3d6312786d3c90c63ae50a5aea7b868e0", kill_on_drop: false }`
[INFO] [stdout] 2ec5838bedbbdfaf0a732d3ed4e63af3d6312786d3c90c63ae50a5aea7b868e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e323e016b425a308d6de7f5023a478d7fe179ef8a8842f5f7352dbc67c8ee80
[INFO] running `Command { std: "docker" "start" "-a" "9e323e016b425a308d6de7f5023a478d7fe179ef8a8842f5f7352dbc67c8ee80", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling itertools v0.4.19
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:366:14
[INFO] [stdout]     |
[INFO] [stdout] 366 |     Task(Box<Task + Send>, Arc<WaitGroup>)
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 366 |     Task(Box<dyn Task + Send>, Arc<WaitGroup>)
[INFO] [stdout]     |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:299:34
[INFO] [stdout]     |
[INFO] [stdout] 299 |             mem::transmute::<Box<Task + Send + 'scope>,
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 299 |             mem::transmute::<Box<dyn Task + Send + 'scope>,
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:300:34
[INFO] [stdout]     |
[INFO] [stdout] 300 | ...                   Box<Task + Send + 'static>>(Box::new(job))
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 300 |                              Box<dyn Task + Send + 'static>>(Box::new(job))
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present
[INFO] [stdout]    --> src/lib.rs:325:44
[INFO] [stdout]     |
[INFO] [stdout] 325 |         let scope = unsafe { self.refine::<'smaller>() };
[INFO] [stdout]     |                                            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 355 |     unsafe fn refine<'other>(&self) -> Scope<'other> where 'scope: 'other {
[INFO] [stdout]     |                              - the late bound lifetime parameter is introduced here
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868>
[INFO] [stdout]     = note: `#[warn(late_bound_lifetime_arguments)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:465:17
[INFO] [stdout]     |
[INFO] [stdout] 465 | struct Sentinel(Pool, Option<Arc<WaitGroup>>);
[INFO] [stdout]     |        -------- ^^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 465 - struct Sentinel(Pool, Option<Arc<WaitGroup>>);
[INFO] [stdout] 465 + struct Sentinel((), Option<Arc<WaitGroup>>);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling scoped-pool v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:366:14
[INFO] [stdout]     |
[INFO] [stdout] 366 |     Task(Box<Task + Send>, Arc<WaitGroup>)
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:1:24
[INFO] [stdout]     |
[INFO] [stdout]   1 | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(bare_trait_objects)]` implied by `#[deny(warnings)]`
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 366 |     Task(Box<dyn Task + Send>, Arc<WaitGroup>)
[INFO] [stdout]     |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:299:34
[INFO] [stdout]     |
[INFO] [stdout] 299 |             mem::transmute::<Box<Task + Send + 'scope>,
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 299 |             mem::transmute::<Box<dyn Task + Send + 'scope>,
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:300:34
[INFO] [stdout]     |
[INFO] [stdout] 300 | ...                   Box<Task + Send + 'static>>(Box::new(job))
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 300 |                              Box<dyn Task + Send + 'static>>(Box::new(job))
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present
[INFO] [stdout]    --> src/lib.rs:325:44
[INFO] [stdout]     |
[INFO] [stdout] 325 |         let scope = unsafe { self.refine::<'smaller>() };
[INFO] [stdout]     |                                            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 355 |     unsafe fn refine<'other>(&self) -> Scope<'other> where 'scope: 'other {
[INFO] [stdout]     |                              - the late bound lifetime parameter is introduced here
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868>
[INFO] [stdout]     = note: `#[deny(late_bound_lifetime_arguments)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:465:17
[INFO] [stdout]     |
[INFO] [stdout] 465 | struct Sentinel(Pool, Option<Arc<WaitGroup>>);
[INFO] [stdout]     |        -------- ^^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 465 - struct Sentinel(Pool, Option<Arc<WaitGroup>>);
[INFO] [stdout] 465 + struct Sentinel((), Option<Arc<WaitGroup>>);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scoped-pool` (lib test) due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9e323e016b425a308d6de7f5023a478d7fe179ef8a8842f5f7352dbc67c8ee80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e323e016b425a308d6de7f5023a478d7fe179ef8a8842f5f7352dbc67c8ee80", kill_on_drop: false }`
[INFO] [stdout] 9e323e016b425a308d6de7f5023a478d7fe179ef8a8842f5f7352dbc67c8ee80
