[INFO] fetching crate RustyEmitter 2.2.0...
[INFO] testing RustyEmitter-2.2.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate RustyEmitter 2.2.0 into /workspace/builds/worker-65/source
[INFO] validating manifest of crates.io crate RustyEmitter 2.2.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate RustyEmitter 2.2.0
[INFO] finished tweaking crates.io crate RustyEmitter 2.2.0
[INFO] tweaked toml for crates.io crate RustyEmitter 2.2.0 written to /workspace/builds/worker-65/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr] warning: unused manifest key: rust
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71b88ec8471c26fe1c402a11ad3b8ffd6e1c240233aa8486ea740c380a735a14
[INFO] running `Command { std: "docker" "start" "-a" "71b88ec8471c26fe1c402a11ad3b8ffd6e1c240233aa8486ea740c380a735a14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71b88ec8471c26fe1c402a11ad3b8ffd6e1c240233aa8486ea740c380a735a14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71b88ec8471c26fe1c402a11ad3b8ffd6e1c240233aa8486ea740c380a735a14", kill_on_drop: false }`
[INFO] [stdout] 71b88ec8471c26fe1c402a11ad3b8ffd6e1c240233aa8486ea740c380a735a14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1e86dfaf532745b66f59114338aee77781ab2406260283ebc1d6e1a3d8dd542
[INFO] running `Command { std: "docker" "start" "-a" "b1e86dfaf532745b66f59114338aee77781ab2406260283ebc1d6e1a3d8dd542", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr] warning: unused manifest key: rust
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling RustyEmitter v2.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lib.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |       _ => {;}
[INFO] [stdout]    |             ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib.rs:5:40
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type EventCallback<'callback, T> = FnMut(& mut EventData<T>) -> () + 'callback;
[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] 5 - pub type EventCallback<'callback, T> = FnMut(& mut EventData<T>) -> () + 'callback;
[INFO] [stdout] 5 + pub type EventCallback<'callback, T> = dyn FnMut(& mut EventData<T>) -> () + 'callback;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RustyEmitter` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rusty_emitter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `EventData` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:10:42
[INFO] [stdout]    |
[INFO] [stdout] 10 |   fn emit(&mut self, event_name: String, EventData: & mut EventData<T>);
[INFO] [stdout]    |                                          ^^^^^^^^^ help: convert the identifier to snake case: `event_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `Command { std: "docker" "inspect" "b1e86dfaf532745b66f59114338aee77781ab2406260283ebc1d6e1a3d8dd542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1e86dfaf532745b66f59114338aee77781ab2406260283ebc1d6e1a3d8dd542", kill_on_drop: false }`
[INFO] [stdout] b1e86dfaf532745b66f59114338aee77781ab2406260283ebc1d6e1a3d8dd542
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5ebc82e5644e59eb4a85c94f6e47e3b45d49a80c481e55a1b3b244d5072a8e6
[INFO] running `Command { std: "docker" "start" "-a" "a5ebc82e5644e59eb4a85c94f6e47e3b45d49a80c481e55a1b3b244d5072a8e6", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr] warning: unused manifest key: rust
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lib.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |       _ => {;}
[INFO] [stdout]    |             ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling RustyEmitter v2.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib.rs:5:40
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type EventCallback<'callback, T> = FnMut(& mut EventData<T>) -> () + 'callback;
[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] 5 - pub type EventCallback<'callback, T> = FnMut(& mut EventData<T>) -> () + 'callback;
[INFO] [stdout] 5 + pub type EventCallback<'callback, T> = dyn FnMut(& mut EventData<T>) -> () + 'callback;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RustyEmitter` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rusty_emitter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `EventData` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:10:42
[INFO] [stdout]    |
[INFO] [stdout] 10 |   fn emit(&mut self, event_name: String, EventData: & mut EventData<T>);
[INFO] [stdout]    |                                          ^^^^^^^^^ help: convert the identifier to snake case: `event_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/../src/lib.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |       _ => {;}
[INFO] [stdout]    |             ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lib.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |       _ => {;}
[INFO] [stdout]    |             ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/emitter.rs:99:6
[INFO] [stdout]    |
[INFO] [stdout] 99 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib.rs:5:40
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type EventCallback<'callback, T> = FnMut(& mut EventData<T>) -> () + 'callback;
[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] 5 - pub type EventCallback<'callback, T> = FnMut(& mut EventData<T>) -> () + 'callback;
[INFO] [stdout] 5 + pub type EventCallback<'callback, T> = dyn FnMut(& mut EventData<T>) -> () + 'callback;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> tests/../src/lib.rs:5:40
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type EventCallback<'callback, T> = FnMut(& mut EventData<T>) -> () + 'callback;
[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] 5 - pub type EventCallback<'callback, T> = FnMut(& mut EventData<T>) -> () + 'callback;
[INFO] [stdout] 5 + pub type EventCallback<'callback, T> = dyn FnMut(& mut EventData<T>) -> () + 'callback;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RustyEmitter` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rusty_emitter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `EventData` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:10:42
[INFO] [stdout]    |
[INFO] [stdout] 10 |   fn emit(&mut self, event_name: String, EventData: & mut EventData<T>);
[INFO] [stdout]    |                                          ^^^^^^^^^ help: convert the identifier to snake case: `event_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `EventData` should have a snake case name
[INFO] [stdout]   --> tests/../src/lib.rs:10:42
[INFO] [stdout]    |
[INFO] [stdout] 10 |   fn emit(&mut self, event_name: String, EventData: & mut EventData<T>);
[INFO] [stdout]    |                                          ^^^^^^^^^ help: convert the identifier to snake case: `event_data`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.23s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/RustyEmitter-51c8f6f0e1bcdfe3)
[INFO] [stderr]   Executable tests/emitter.rs (/opt/rustwide/target/debug/deps/emitter-1f82e49748e51bcc)
[INFO] running `Command { std: "docker" "inspect" "a5ebc82e5644e59eb4a85c94f6e47e3b45d49a80c481e55a1b3b244d5072a8e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5ebc82e5644e59eb4a85c94f6e47e3b45d49a80c481e55a1b3b244d5072a8e6", kill_on_drop: false }`
[INFO] [stdout] a5ebc82e5644e59eb4a85c94f6e47e3b45d49a80c481e55a1b3b244d5072a8e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3ace2ef2ad96aee1b6c8b2b92592dc3f8902c4cc641fcd592aaa82be53e528bd
[INFO] running `Command { std: "docker" "start" "-a" "3ace2ef2ad96aee1b6c8b2b92592dc3f8902c4cc641fcd592aaa82be53e528bd", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr] warning: unused manifest key: rust
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/lib.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |       _ => {;}
[INFO] [stderr]    |             ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:5:40
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub type EventCallback<'callback, T> = FnMut(& mut EventData<T>) -> () + 'callback;
[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] 5 - pub type EventCallback<'callback, T> = FnMut(& mut EventData<T>) -> () + 'callback;
[INFO] [stderr] 5 + pub type EventCallback<'callback, T> = dyn FnMut(& mut EventData<T>) -> () + 'callback;
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: crate `RustyEmitter` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `rusty_emitter`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `EventData` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:10:42
[INFO] [stderr]    |
[INFO] [stderr] 10 |   fn emit(&mut self, event_name: String, EventData: & mut EventData<T>);
[INFO] [stderr]    |                                          ^^^^^^^^^ help: convert the identifier to snake case: `event_data`
[INFO] [stderr] 
[INFO] [stderr] warning: `RustyEmitter` (lib) generated 4 warnings
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> tests/../src/lib.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |       _ => {;}
[INFO] [stderr]    |             ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> tests/emitter.rs:99:6
[INFO] [stderr]    |
[INFO] [stderr] 99 |     };
[INFO] [stderr]    |      ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> tests/../src/lib.rs:5:40
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub type EventCallback<'callback, T> = FnMut(& mut EventData<T>) -> () + 'callback;
[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] 5 - pub type EventCallback<'callback, T> = FnMut(& mut EventData<T>) -> () + 'callback;
[INFO] [stderr] 5 + pub type EventCallback<'callback, T> = dyn FnMut(& mut EventData<T>) -> () + 'callback;
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: variable `EventData` should have a snake case name
[INFO] [stderr]   --> tests/../src/lib.rs:10:42
[INFO] [stderr]    |
[INFO] [stderr] 10 |   fn emit(&mut self, event_name: String, EventData: & mut EventData<T>);
[INFO] [stderr]    |                                          ^^^^^^^^^ help: convert the identifier to snake case: `event_data`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `RustyEmitter` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr] warning: `RustyEmitter` (test "emitter") generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/RustyEmitter-51c8f6f0e1bcdfe3)
[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/emitter.rs (/opt/rustwide/target/debug/deps/emitter-1f82e49748e51bcc)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test must_register_an_event_and_call_callback_passing_data ... ok
[INFO] [stdout] test must_register_multiple_events_and_call_all_the_callback_passing_a_copy_of_the_same_data ... ok
[INFO] [stdout] test must_unregister_an_event ... ok
[INFO] [stdout] test must_work_with_a_custom_event_data_and_allow_the_callback_to_modified_it ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests RustyEmitter
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:48:13
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 48 |       _ => {;}
[INFO] [stdout] 
[INFO] [stderr]    |             ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] running `Command { std: "docker" "inspect" "3ace2ef2ad96aee1b6c8b2b92592dc3f8902c4cc641fcd592aaa82be53e528bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ace2ef2ad96aee1b6c8b2b92592dc3f8902c4cc641fcd592aaa82be53e528bd", kill_on_drop: false }`
[INFO] [stdout] 3ace2ef2ad96aee1b6c8b2b92592dc3f8902c4cc641fcd592aaa82be53e528bd