[INFO] fetching crate scoped-pool 1.0.0...
[INFO] testing scoped-pool-1.0.0 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate scoped-pool 1.0.0 into /workspace/builds/worker-6-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-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate scoped-pool 1.0.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages to highest compatible versions
[INFO] [stderr]       Adding crossbeam v0.2.12 (available: v0.8.5)
[INFO] [stderr]       Adding itertools v0.4.19 (available: v0.15.0)
[INFO] [stderr]       Adding rand v0.3.23 (available: v0.10.3)
[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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `scoped-pool` (manifest) generated 1 warning
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scopeguard v0.1.2
[INFO] [stderr]   Downloaded variance v0.1.3
[INFO] [stderr]   Downloaded crossbeam v0.2.12
[INFO] [stderr]   Downloaded itertools v0.4.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 5f392d5175215d0a79a7c6248a71cee4ab6d856cc5d123ecab483f990f5d2b9d
[INFO] running `Command { std: "docker" "start" "5f392d5175215d0a79a7c6248a71cee4ab6d856cc5d123ecab483f990f5d2b9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f392d5175215d0a79a7c6248a71cee4ab6d856cc5d123ecab483f990f5d2b9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5f392d5175215d0a79a7c6248a71cee4ab6d856cc5d123ecab483f990f5d2b9d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f392d5175215d0a79a7c6248a71cee4ab6d856cc5d123ecab483f990f5d2b9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5f392d5175215d0a79a7c6248a71cee4ab6d856cc5d123ecab483f990f5d2b9d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `scoped-pool` (manifest) generated 1 warning
[INFO] [stderr]    Compiling scopeguard v0.1.2
[INFO] [stderr]    Compiling crossbeam v0.2.12
[INFO] [stderr]    Compiling variance v0.1.3
[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 0.78s
[INFO] running `Command { std: "docker" "inspect" "5f392d5175215d0a79a7c6248a71cee4ab6d856cc5d123ecab483f990f5d2b9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5f392d5175215d0a79a7c6248a71cee4ab6d856cc5d123ecab483f990f5d2b9d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `scoped-pool` (manifest) generated 1 warning
[INFO] [stderr]    Compiling libc v0.2.190
[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 itertools v0.4.19
[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] 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: 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: `#[warn(bare_trait_objects)]` implied by `#[warn(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] 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)]` implied by `#[warn(warnings)]`
[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)]` implied by `#[warn(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]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.57s
[INFO] running `Command { std: "docker" "inspect" "5f392d5175215d0a79a7c6248a71cee4ab6d856cc5d123ecab483f990f5d2b9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5f392d5175215d0a79a7c6248a71cee4ab6d856cc5d123ecab483f990f5d2b9d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `scoped-pool` (manifest) generated 1 warning
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:366:14
[INFO] [stderr]     |
[INFO] [stderr] 366 |     Task(Box<Task + Send>, Arc<WaitGroup>)
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 366 |     Task(Box<dyn Task + Send>, Arc<WaitGroup>)
[INFO] [stderr]     |              +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:299:34
[INFO] [stderr]     |
[INFO] [stderr] 299 |             mem::transmute::<Box<Task + Send + 'scope>,
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 299 |             mem::transmute::<Box<dyn Task + Send + 'scope>,
[INFO] [stderr]     |                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:300:34
[INFO] [stderr]     |
[INFO] [stderr] 300 | ...                   Box<Task + Send + 'static>>(Box::new(job))
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 300 |                              Box<dyn Task + Send + 'static>>(Box::new(job))
[INFO] [stderr]     |                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present
[INFO] [stderr]    --> src/lib.rs:325:44
[INFO] [stderr]     |
[INFO] [stderr] 325 |         let scope = unsafe { self.refine::<'smaller>() };
[INFO] [stderr]     |                                            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 355 |     unsafe fn refine<'other>(&self) -> Scope<'other> where 'scope: 'other {
[INFO] [stderr]     |                              - the late bound lifetime parameter is introduced here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868>
[INFO] [stderr]     = note: `#[warn(late_bound_lifetime_arguments)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/lib.rs:465:17
[INFO] [stderr]     |
[INFO] [stderr] 465 | struct Sentinel(Pool, Option<Arc<WaitGroup>>);
[INFO] [stderr]     |        -------- ^^^^
[INFO] [stderr]     |        |
[INFO] [stderr]     |        field in this struct
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 465 - struct Sentinel(Pool, Option<Arc<WaitGroup>>);
[INFO] [stderr] 465 + struct Sentinel((), Option<Arc<WaitGroup>>);
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `scoped-pool` (lib) generated 5 warnings (run `cargo fix --lib -p scoped-pool` to apply 3 suggestions)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:366:14
[INFO] [stderr]     |
[INFO] [stderr] 366 |     Task(Box<Task + Send>, Arc<WaitGroup>)
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:1:24
[INFO] [stderr]     |
[INFO] [stderr]   1 | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 366 |     Task(Box<dyn Task + Send>, Arc<WaitGroup>)
[INFO] [stderr]     |              +++
[INFO] [stderr] 
[INFO] [stderr] warning: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present
[INFO] [stderr]    --> src/lib.rs:325:44
[INFO] [stderr]     |
[INFO] [stderr] 325 |         let scope = unsafe { self.refine::<'smaller>() };
[INFO] [stderr]     |                                            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 355 |     unsafe fn refine<'other>(&self) -> Scope<'other> where 'scope: 'other {
[INFO] [stderr]     |                              - the late bound lifetime parameter is introduced here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868>
[INFO] [stderr]     = note: `#[warn(late_bound_lifetime_arguments)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/lib.rs:465:17
[INFO] [stderr]     |
[INFO] [stderr] 465 | struct Sentinel(Pool, Option<Arc<WaitGroup>>);
[INFO] [stderr]     |        -------- ^^^^
[INFO] [stderr]     |        |
[INFO] [stderr]     |        field in this struct
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` implied by `#[warn(warnings)]`
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 465 - struct Sentinel(Pool, Option<Arc<WaitGroup>>);
[INFO] [stderr] 465 + struct Sentinel((), Option<Arc<WaitGroup>>);
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `scoped-pool` (lib test) generated 5 warnings (2 duplicates) (run `cargo fix --lib -p scoped-pool --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/scoped_pool-02111b1fbd8e0575)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test test::test_forever_zoom ... ok
[INFO] [stdout] test test::test_no_thread_config ... ok
[INFO] [stdout] test test::test_recurse ... ok
[INFO] [stdout] test test::test_shutdown ... ok
[INFO] [stdout] test test::test_simple_use ... ok
[INFO] [stdout] test test::test_spawn_doesnt_hang ... ok
[INFO] [stdout] test test::test_pool_panic - should panic ... ok
[INFO] [stdout] test test::test_with_thread_config ... ok
[INFO] [stdout] test test::test_recurse_execute_panic - should panic ... ok
[INFO] [stdout] test test::test_scheduler_panic - should panic ... ok
[INFO] [stdout] test test::test_zoom ... ok
[INFO] [stdout] test test::test_zoomed_scoped_execute_panic - should panic ... ok
[INFO] [stdout] test test::test_scoped_execute_panic - should panic ... ok
[INFO] [stdout] test test::test_recurse_scheduler_panic - should panic ... ok
[INFO] [stdout] test test::test_scoped_panic_waits_for_all_tasks - should panic ... ok
[INFO] [stdout] test test::test_scheduler_panic_waits_for_tasks - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests scoped_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" "5f392d5175215d0a79a7c6248a71cee4ab6d856cc5d123ecab483f990f5d2b9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f392d5175215d0a79a7c6248a71cee4ab6d856cc5d123ecab483f990f5d2b9d", kill_on_drop: false }`
[INFO] [stdout] 5f392d5175215d0a79a7c6248a71cee4ab6d856cc5d123ecab483f990f5d2b9d
