[INFO] cloning repository https://github.com/Kyando2/BitterHarmony
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kyando2/BitterHarmony" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKyando2%2FBitterHarmony", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKyando2%2FBitterHarmony'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a17d663f03dfa069a4913743f0025e6c8cdc406
[INFO] checking Kyando2/BitterHarmony against beta-2021-10-15 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKyando2%2FBitterHarmony" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Kyando2/BitterHarmony on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Kyando2/BitterHarmony
[INFO] finished tweaking git repo https://github.com/Kyando2/BitterHarmony
[INFO] tweaked toml for git repo https://github.com/Kyando2/BitterHarmony written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/Kyando2/BitterHarmony already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35b53f1961239db5258efb44b81f0bab0a14f9168511bf37fa316565630c4ff6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "35b53f1961239db5258efb44b81f0bab0a14f9168511bf37fa316565630c4ff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35b53f1961239db5258efb44b81f0bab0a14f9168511bf37fa316565630c4ff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35b53f1961239db5258efb44b81f0bab0a14f9168511bf37fa316565630c4ff6", kill_on_drop: false }`
[INFO] [stdout] 35b53f1961239db5258efb44b81f0bab0a14f9168511bf37fa316565630c4ff6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] da3976b6048f07157b8b5d8f5ec856e36a8538202b491021f9a0bad6cc377781
[INFO] running `Command { std: "docker" "start" "-a" "da3976b6048f07157b8b5d8f5ec856e36a8538202b491021f9a0bad6cc377781", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]    Compiling openssl v0.10.33
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]    Compiling tokio v1.4.0
[INFO] [stderr]     Checking lock_api v0.4.3
[INFO] [stderr]     Checking http-body v0.4.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking tungstenite v0.13.0
[INFO] [stderr]     Checking pin-project v1.0.6
[INFO] [stderr]     Checking tokio-util v0.6.5
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.2
[INFO] [stderr]     Checking hyper v0.14.5
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.2
[INFO] [stderr]     Checking bitter_harmony v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `!`, `(`, `...`, `..=`, `..`, `::`, `:`, `{`, or `|`, found `,`
[INFO] [stdout]  --> src/client/handler.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn on_message(&Self, ctx: Context);
[INFO] [stdout]   |                        ^ expected one of 9 possible tokens
[INFO] [stdout]   |
[INFO] [stdout]   = note: anonymous parameters are removed in the 2018 edition (see RFC 1685)
[INFO] [stdout] help: explicitly ignore the parameter name
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn on_message(_: &Self, ctx: Context);
[INFO] [stdout]   |                   ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!`, `(`, `...`, `..=`, `..`, `::`, `:`, `{`, or `|`, found `,`
[INFO] [stdout]  --> src/client/handler.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn on_command(&Self, ctx: Context);
[INFO] [stdout]   |                        ^ expected one of 9 possible tokens
[INFO] [stdout]   |
[INFO] [stdout]   = note: anonymous parameters are removed in the 2018 edition (see RFC 1685)
[INFO] [stdout] help: explicitly ignore the parameter name
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn on_command(_: &Self, ctx: Context);
[INFO] [stdout]   |                   ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Message`
[INFO] [stdout]  --> src/gateway/runner.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tungstenite::{connect, Message, WebSocket, client::AutoStream};
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::BitterHandler`
[INFO] [stdout]  --> src/client/default.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::BitterHandler;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!`, `(`, `...`, `..=`, `..`, `::`, `:`, `{`, or `|`, found `,`
[INFO] [stdout]  --> src/client/handler.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn on_message(&Self, ctx: Context);
[INFO] [stdout]   |                        ^ expected one of 9 possible tokens
[INFO] [stdout]   |
[INFO] [stdout]   = note: anonymous parameters are removed in the 2018 edition (see RFC 1685)
[INFO] [stdout] help: explicitly ignore the parameter name
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn on_message(_: &Self, ctx: Context);
[INFO] [stdout]   |                   ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!`, `(`, `...`, `..=`, `..`, `::`, `:`, `{`, or `|`, found `,`
[INFO] [stdout]  --> src/client/handler.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn on_command(&Self, ctx: Context);
[INFO] [stdout]   |                        ^ expected one of 9 possible tokens
[INFO] [stdout]   |
[INFO] [stdout]   = note: anonymous parameters are removed in the 2018 edition (see RFC 1685)
[INFO] [stdout] help: explicitly ignore the parameter name
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn on_command(_: &Self, ctx: Context);
[INFO] [stdout]   |                   ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0038]: the trait `BitterHandler` cannot be made into an object
[INFO] [stdout]   --> src/gateway/runner.rs:56:87
[INFO] [stdout]    |
[INFO] [stdout] 56 | ...t<AutoStream>>>, handle: Arc<Mutex<dyn BitterHandler>>) -> Arc<Mutex<WebSocket<AutoStream>>> {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^ `BitterHandler` cannot be made into an object
[INFO] [stdout]    |
[INFO] [stdout] note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
[INFO] [stdout]   --> src/client/handler.rs:4:8
[INFO] [stdout]    |
[INFO] [stdout] 3  | pub trait BitterHandler {
[INFO] [stdout]    |           ------------- this trait cannot be made into an object...
[INFO] [stdout] 4  |     fn on_message(&Self, ctx: Context);
[INFO] [stdout]    |        ^^^^^^^^^^ ...because associated function `on_message` has no `self` parameter
[INFO] [stdout] 5  |     fn on_command(&Self, ctx: Context);
[INFO] [stdout]    |        ^^^^^^^^^^ ...because associated function `on_command` has no `self` parameter
[INFO] [stdout] help: consider turning `on_message` into a method by giving it a `&self` argument
[INFO] [stdout]    |
[INFO] [stdout] 4  |     fn on_message(&self, &Self, ctx: Context);
[INFO] [stdout]    |                   ++++++
[INFO] [stdout] help: alternatively, consider constraining `on_message` so it does not apply to trait objects
[INFO] [stdout]    |
[INFO] [stdout] 4  |     fn on_message(&Self, ctx: Context) where Self: Sized;
[INFO] [stdout]    |                                        +++++++++++++++++
[INFO] [stdout] help: consider turning `on_command` into a method by giving it a `&self` argument
[INFO] [stdout]    |
[INFO] [stdout] 5  |     fn on_command(&self, &Self, ctx: Context);
[INFO] [stdout]    |                   ++++++
[INFO] [stdout] help: alternatively, consider constraining `on_command` so it does not apply to trait objects
[INFO] [stdout]    |
[INFO] [stdout] 5  |     fn on_command(&Self, ctx: Context) where Self: Sized;
[INFO] [stdout]    |                                        +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0038]: the trait `BitterHandler` cannot be made into an object
[INFO] [stdout]   --> src/gateway/runner.rs:87:50
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn connect(&mut self, handler: Arc<Mutex<dyn BitterHandler>>) {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^^^^ `BitterHandler` cannot be made into an object
[INFO] [stdout]    |
[INFO] [stdout] note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
[INFO] [stdout]   --> src/client/handler.rs:4:8
[INFO] [stdout]    |
[INFO] [stdout] 3  | pub trait BitterHandler {
[INFO] [stdout]    |           ------------- this trait cannot be made into an object...
[INFO] [stdout] 4  |     fn on_message(&Self, ctx: Context);
[INFO] [stdout]    |        ^^^^^^^^^^ ...because associated function `on_message` has no `self` parameter
[INFO] [stdout] 5  |     fn on_command(&Self, ctx: Context);
[INFO] [stdout]    |        ^^^^^^^^^^ ...because associated function `on_command` has no `self` parameter
[INFO] [stdout] help: consider turning `on_message` into a method by giving it a `&self` argument
[INFO] [stdout]    |
[INFO] [stdout] 4  |     fn on_message(&self, &Self, ctx: Context);
[INFO] [stdout]    |                   ++++++
[INFO] [stdout] help: alternatively, consider constraining `on_message` so it does not apply to trait objects
[INFO] [stdout]    |
[INFO] [stdout] 4  |     fn on_message(&Self, ctx: Context) where Self: Sized;
[INFO] [stdout]    |                                        +++++++++++++++++
[INFO] [stdout] help: consider turning `on_command` into a method by giving it a `&self` argument
[INFO] [stdout]    |
[INFO] [stdout] 5  |     fn on_command(&self, &Self, ctx: Context);
[INFO] [stdout]    |                   ++++++
[INFO] [stdout] help: alternatively, consider constraining `on_command` so it does not apply to trait objects
[INFO] [stdout]    |
[INFO] [stdout] 5  |     fn on_command(&Self, ctx: Context) where Self: Sized;
[INFO] [stdout]    |                                        +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0038]: the trait `BitterHandler` cannot be made into an object
[INFO] [stdout]    --> src/gateway/runner.rs:144:131
[INFO] [stdout]     |
[INFO] [stdout] 144 | ...<AutoStream>>>, handler: Arc<Mutex<dyn BitterHandler>>) -> Worker {
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^ `BitterHandler` cannot be made into an object
[INFO] [stdout]     |
[INFO] [stdout] note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
[INFO] [stdout]    --> src/client/handler.rs:4:8
[INFO] [stdout]     |
[INFO] [stdout] 3   | pub trait BitterHandler {
[INFO] [stdout]     |           ------------- this trait cannot be made into an object...
[INFO] [stdout] 4   |     fn on_message(&Self, ctx: Context);
[INFO] [stdout]     |        ^^^^^^^^^^ ...because associated function `on_message` has no `self` parameter
[INFO] [stdout] 5   |     fn on_command(&Self, ctx: Context);
[INFO] [stdout]     |        ^^^^^^^^^^ ...because associated function `on_command` has no `self` parameter
[INFO] [stdout] help: consider turning `on_message` into a method by giving it a `&self` argument
[INFO] [stdout]     |
[INFO] [stdout] 4   |     fn on_message(&self, &Self, ctx: Context);
[INFO] [stdout]     |                   ++++++
[INFO] [stdout] help: alternatively, consider constraining `on_message` so it does not apply to trait objects
[INFO] [stdout]     |
[INFO] [stdout] 4   |     fn on_message(&Self, ctx: Context) where Self: Sized;
[INFO] [stdout]     |                                        +++++++++++++++++
[INFO] [stdout] help: consider turning `on_command` into a method by giving it a `&self` argument
[INFO] [stdout]     |
[INFO] [stdout] 5   |     fn on_command(&self, &Self, ctx: Context);
[INFO] [stdout]     |                   ++++++
[INFO] [stdout] help: alternatively, consider constraining `on_command` so it does not apply to trait objects
[INFO] [stdout]     |
[INFO] [stdout] 5   |     fn on_command(&Self, ctx: Context) where Self: Sized;
[INFO] [stdout]     |                                        +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bitter_harmony` due to 6 previous errors; 2 warnings emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0038`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `Message`
[INFO] [stdout]  --> src/gateway/runner.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tungstenite::{connect, Message, WebSocket, client::AutoStream};
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::BitterHandler`
[INFO] [stdout]  --> src/client/default.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::BitterHandler;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0038]: the trait `BitterHandler` cannot be made into an object
[INFO] [stdout]   --> src/gateway/runner.rs:56:87
[INFO] [stdout]    |
[INFO] [stdout] 56 | ...t<AutoStream>>>, handle: Arc<Mutex<dyn BitterHandler>>) -> Arc<Mutex<WebSocket<AutoStream>>> {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^ `BitterHandler` cannot be made into an object
[INFO] [stdout]    |
[INFO] [stdout] note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
[INFO] [stdout]   --> src/client/handler.rs:4:8
[INFO] [stdout]    |
[INFO] [stdout] 3  | pub trait BitterHandler {
[INFO] [stdout]    |           ------------- this trait cannot be made into an object...
[INFO] [stdout] 4  |     fn on_message(&Self, ctx: Context);
[INFO] [stdout]    |        ^^^^^^^^^^ ...because associated function `on_message` has no `self` parameter
[INFO] [stdout] 5  |     fn on_command(&Self, ctx: Context);
[INFO] [stdout]    |        ^^^^^^^^^^ ...because associated function `on_command` has no `self` parameter
[INFO] [stdout] help: consider turning `on_message` into a method by giving it a `&self` argument
[INFO] [stdout]    |
[INFO] [stdout] 4  |     fn on_message(&self, &Self, ctx: Context);
[INFO] [stdout]    |                   ++++++
[INFO] [stdout] help: alternatively, consider constraining `on_message` so it does not apply to trait objects
[INFO] [stdout]    |
[INFO] [stdout] 4  |     fn on_message(&Self, ctx: Context) where Self: Sized;
[INFO] [stdout]    |                                        +++++++++++++++++
[INFO] [stdout] help: consider turning `on_command` into a method by giving it a `&self` argument
[INFO] [stdout]    |
[INFO] [stdout] 5  |     fn on_command(&self, &Self, ctx: Context);
[INFO] [stdout]    |                   ++++++
[INFO] [stdout] help: alternatively, consider constraining `on_command` so it does not apply to trait objects
[INFO] [stdout]    |
[INFO] [stdout] 5  |     fn on_command(&Self, ctx: Context) where Self: Sized;
[INFO] [stdout]    |                                        +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0038]: the trait `BitterHandler` cannot be made into an object
[INFO] [stdout]   --> src/gateway/runner.rs:87:50
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn connect(&mut self, handler: Arc<Mutex<dyn BitterHandler>>) {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^^^^ `BitterHandler` cannot be made into an object
[INFO] [stdout]    |
[INFO] [stdout] note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
[INFO] [stdout]   --> src/client/handler.rs:4:8
[INFO] [stdout]    |
[INFO] [stdout] 3  | pub trait BitterHandler {
[INFO] [stdout]    |           ------------- this trait cannot be made into an object...
[INFO] [stdout] 4  |     fn on_message(&Self, ctx: Context);
[INFO] [stdout]    |        ^^^^^^^^^^ ...because associated function `on_message` has no `self` parameter
[INFO] [stdout] 5  |     fn on_command(&Self, ctx: Context);
[INFO] [stdout]    |        ^^^^^^^^^^ ...because associated function `on_command` has no `self` parameter
[INFO] [stdout] help: consider turning `on_message` into a method by giving it a `&self` argument
[INFO] [stdout]    |
[INFO] [stdout] 4  |     fn on_message(&self, &Self, ctx: Context);
[INFO] [stdout]    |                   ++++++
[INFO] [stdout] help: alternatively, consider constraining `on_message` so it does not apply to trait objects
[INFO] [stdout]    |
[INFO] [stdout] 4  |     fn on_message(&Self, ctx: Context) where Self: Sized;
[INFO] [stdout]    |                                        +++++++++++++++++
[INFO] [stdout] help: consider turning `on_command` into a method by giving it a `&self` argument
[INFO] [stdout]    |
[INFO] [stdout] 5  |     fn on_command(&self, &Self, ctx: Context);
[INFO] [stdout]    |                   ++++++
[INFO] [stdout] help: alternatively, consider constraining `on_command` so it does not apply to trait objects
[INFO] [stdout]    |
[INFO] [stdout] 5  |     fn on_command(&Self, ctx: Context) where Self: Sized;
[INFO] [stdout]    |                                        +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0038]: the trait `BitterHandler` cannot be made into an object
[INFO] [stdout]    --> src/gateway/runner.rs:144:131
[INFO] [stdout]     |
[INFO] [stdout] 144 | ...<AutoStream>>>, handler: Arc<Mutex<dyn BitterHandler>>) -> Worker {
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^ `BitterHandler` cannot be made into an object
[INFO] [stdout]     |
[INFO] [stdout] note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
[INFO] [stdout]    --> src/client/handler.rs:4:8
[INFO] [stdout]     |
[INFO] [stdout] 3   | pub trait BitterHandler {
[INFO] [stdout]     |           ------------- this trait cannot be made into an object...
[INFO] [stdout] 4   |     fn on_message(&Self, ctx: Context);
[INFO] [stdout]     |        ^^^^^^^^^^ ...because associated function `on_message` has no `self` parameter
[INFO] [stdout] 5   |     fn on_command(&Self, ctx: Context);
[INFO] [stdout]     |        ^^^^^^^^^^ ...because associated function `on_command` has no `self` parameter
[INFO] [stdout] help: consider turning `on_message` into a method by giving it a `&self` argument
[INFO] [stdout]     |
[INFO] [stdout] 4   |     fn on_message(&self, &Self, ctx: Context);
[INFO] [stdout]     |                   ++++++
[INFO] [stdout] help: alternatively, consider constraining `on_message` so it does not apply to trait objects
[INFO] [stdout]     |
[INFO] [stdout] 4   |     fn on_message(&Self, ctx: Context) where Self: Sized;
[INFO] [stdout]     |                                        +++++++++++++++++
[INFO] [stdout] help: consider turning `on_command` into a method by giving it a `&self` argument
[INFO] [stdout]     |
[INFO] [stdout] 5   |     fn on_command(&self, &Self, ctx: Context);
[INFO] [stdout]     |                   ++++++
[INFO] [stdout] help: alternatively, consider constraining `on_command` so it does not apply to trait objects
[INFO] [stdout]     |
[INFO] [stdout] 5   |     fn on_command(&Self, ctx: Context) where Self: Sized;
[INFO] [stdout]     |                                        +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0038`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "da3976b6048f07157b8b5d8f5ec856e36a8538202b491021f9a0bad6cc377781", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da3976b6048f07157b8b5d8f5ec856e36a8538202b491021f9a0bad6cc377781", kill_on_drop: false }`
[INFO] [stdout] da3976b6048f07157b8b5d8f5ec856e36a8538202b491021f9a0bad6cc377781
