[INFO] fetching crate poolite 0.7.1...
[INFO] building poolite-0.7.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate poolite 0.7.1 into /workspace/builds/worker-53/source
[INFO] validating manifest of crates.io crate poolite 0.7.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate poolite 0.7.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate poolite 0.7.1
[INFO] tweaked toml for crates.io crate poolite 0.7.1 written to /workspace/builds/worker-53/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
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[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-channel v0.1.3
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[INFO] [stdout] c4f370dcdc2f23d681555c34d797f7b966caaa776661813f9d39e8dd8d1dab57
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[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
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[INFO] [stderr]    Compiling parking_lot_core v0.2.14
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[INFO] [stderr]    Compiling crossbeam-channel v0.1.3
[INFO] [stderr]    Compiling poolite v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:155:35
[INFO] [stdout]     |
[INFO] [stdout] 155 |             Box::new(task) as Box<Runable + Send + 'static>,
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runable + Send + 'static`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/inner.rs:9:21
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub type Task = Box<Runable + Send + 'static>;
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runable + Send + 'static`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scope.rs:31:45
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let task = unsafe { transmute::<Box<Runable + Send + 'scope>, Box<Runable + Send + 'static>>(Box::new(task)) };
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runable + Send + 'scope`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scope.rs:31:75
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let task = unsafe { transmute::<Box<Runable + Send + 'scope>, Box<Runable + Send + 'static>>(Box::new(task)) };
[INFO] [stdout]    |                                                                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runable + Send + 'static`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Error` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:221:13
[INFO] [stdout]     |
[INFO] [stdout] 86  | use std::error::Error;
[INFO] [stdout]     |     ----------------- the item `Error` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 221 |         use std::error::Error;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:81:28
[INFO] [stdout]    |
[INFO] [stdout] 81 | use std::sync::{Arc, Once, ONCE_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::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/inner.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | static INIT: Once = ONCE_INIT;
[INFO] [stdout]   |                     ^^^^^^^^^ help: replace the use of the deprecated constant: `Once::new()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `mxo_env_logger::StdErr::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:215:20
[INFO] [stdout]     |
[INFO] [stdout] 215 |         self.error.description()
[INFO] [stdout]     |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `mxo_env_logger::StdErr::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:225:24
[INFO] [stdout]     |
[INFO] [stdout] 225 |             self.error.description()
[INFO] [stdout]     |                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `mxo_env_logger::StdErr::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/inner.rs:313:59
[INFO] [stdout]     |
[INFO] [stdout] 313 |             .log_err(|e| error!("Send Task failed: {}", e.description()))
[INFO] [stdout]     |                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `mxo_env_logger::StdErr::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/inner.rs:401:51
[INFO] [stdout]     |
[INFO] [stdout] 401 |             error!("add thread failed: '{}' !", e.description())
[INFO] [stdout]     |                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.47s
[INFO] running `Command { std: "docker" "inspect" "c4f370dcdc2f23d681555c34d797f7b966caaa776661813f9d39e8dd8d1dab57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4f370dcdc2f23d681555c34d797f7b966caaa776661813f9d39e8dd8d1dab57", kill_on_drop: false }`
[INFO] [stdout] c4f370dcdc2f23d681555c34d797f7b966caaa776661813f9d39e8dd8d1dab57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b29d188d2e03869b7a7260a8490eb39e767322d69abddce81fba7305284c52a2
[INFO] running `Command { std: "docker" "start" "-a" "b29d188d2e03869b7a7260a8490eb39e767322d69abddce81fba7305284c52a2", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:155:35
[INFO] [stdout]     |
[INFO] [stdout] 155 |             Box::new(task) as Box<Runable + Send + 'static>,
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runable + Send + 'static`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/inner.rs:9:21
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub type Task = Box<Runable + Send + 'static>;
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runable + Send + 'static`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scope.rs:31:45
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let task = unsafe { transmute::<Box<Runable + Send + 'scope>, Box<Runable + Send + 'static>>(Box::new(task)) };
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runable + Send + 'scope`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scope.rs:31:75
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let task = unsafe { transmute::<Box<Runable + Send + 'scope>, Box<Runable + Send + 'static>>(Box::new(task)) };
[INFO] [stdout]    |                                                                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runable + Send + 'static`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Error` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:221:13
[INFO] [stdout]     |
[INFO] [stdout] 86  | use std::error::Error;
[INFO] [stdout]     |     ----------------- the item `Error` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 221 |         use std::error::Error;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling poolite v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:81:28
[INFO] [stdout]    |
[INFO] [stdout] 81 | use std::sync::{Arc, Once, ONCE_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::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/inner.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | static INIT: Once = ONCE_INIT;
[INFO] [stdout]   |                     ^^^^^^^^^ help: replace the use of the deprecated constant: `Once::new()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `mxo_env_logger::StdErr::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:215:20
[INFO] [stdout]     |
[INFO] [stdout] 215 |         self.error.description()
[INFO] [stdout]     |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `mxo_env_logger::StdErr::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:225:24
[INFO] [stdout]     |
[INFO] [stdout] 225 |             self.error.description()
[INFO] [stdout]     |                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `mxo_env_logger::StdErr::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/inner.rs:313:59
[INFO] [stdout]     |
[INFO] [stdout] 313 |             .log_err(|e| error!("Send Task failed: {}", e.description()))
[INFO] [stdout]     |                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `mxo_env_logger::StdErr::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/inner.rs:401:51
[INFO] [stdout]     |
[INFO] [stdout] 401 |             error!("add thread failed: '{}' !", e.description())
[INFO] [stdout]     |                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> examples/into.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 |         0...2 => 1,
[INFO] [stdout]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` 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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> examples/channel.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |         0...2 => 1,
[INFO] [stdout]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` 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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> examples/scope.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 |         0...2 => 1,
[INFO] [stdout]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` 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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> examples/without.rs:20:10
[INFO] [stdout]    |
[INFO] [stdout] 20 |         0...2 => 1,
[INFO] [stdout]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` 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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> examples/arc_mutex.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 |         0...2 => 1,
[INFO] [stdout]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` 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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> tests/poolite_test_fibs.rs:101:14
[INFO] [stdout]     |
[INFO] [stdout] 101 |             0...2 => 1,
[INFO] [stdout]     |              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` 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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> examples/builder.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |         0...2 => 1,
[INFO] [stdout]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` 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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:155:35
[INFO] [stdout]     |
[INFO] [stdout] 155 |             Box::new(task) as Box<Runable + Send + 'static>,
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runable + Send + 'static`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/inner.rs:9:21
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub type Task = Box<Runable + Send + 'static>;
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runable + Send + 'static`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scope.rs:31:45
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let task = unsafe { transmute::<Box<Runable + Send + 'scope>, Box<Runable + Send + 'static>>(Box::new(task)) };
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runable + Send + 'scope`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scope.rs:31:75
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let task = unsafe { transmute::<Box<Runable + Send + 'scope>, Box<Runable + Send + 'static>>(Box::new(task)) };
[INFO] [stdout]    |                                                                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runable + Send + 'static`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Error` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:221:13
[INFO] [stdout]     |
[INFO] [stdout] 86  | use std::error::Error;
[INFO] [stdout]     |     ----------------- the item `Error` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 221 |         use std::error::Error;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lib.rs:384:14
[INFO] [stdout]     |
[INFO] [stdout] 384 |             0...2 => 1,
[INFO] [stdout]     |              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` 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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:81:28
[INFO] [stdout]    |
[INFO] [stdout] 81 | use std::sync::{Arc, Once, ONCE_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::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/inner.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | static INIT: Once = ONCE_INIT;
[INFO] [stdout]   |                     ^^^^^^^^^ help: replace the use of the deprecated constant: `Once::new()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `mxo_env_logger::StdErr::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:215:20
[INFO] [stdout]     |
[INFO] [stdout] 215 |         self.error.description()
[INFO] [stdout]     |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `mxo_env_logger::StdErr::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:225:24
[INFO] [stdout]     |
[INFO] [stdout] 225 |             self.error.description()
[INFO] [stdout]     |                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `mxo_env_logger::StdErr::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/inner.rs:313:59
[INFO] [stdout]     |
[INFO] [stdout] 313 |             .log_err(|e| error!("Send Task failed: {}", e.description()))
[INFO] [stdout]     |                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `mxo_env_logger::StdErr::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/inner.rs:401:51
[INFO] [stdout]     |
[INFO] [stdout] 401 |             error!("add thread failed: '{}' !", e.description())
[INFO] [stdout]     |                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `Command { std: "docker" "inspect" "b29d188d2e03869b7a7260a8490eb39e767322d69abddce81fba7305284c52a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b29d188d2e03869b7a7260a8490eb39e767322d69abddce81fba7305284c52a2", kill_on_drop: false }`
[INFO] [stdout] b29d188d2e03869b7a7260a8490eb39e767322d69abddce81fba7305284c52a2