[INFO] fetching crate execution-engine 0.1.4... [INFO] checking execution-engine-0.1.4 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3 [INFO] extracting crate execution-engine 0.1.4 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate execution-engine 0.1.4 [INFO] finished tweaking crates.io crate execution-engine 0.1.4 [INFO] tweaked toml for crates.io crate execution-engine 0.1.4 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate execution-engine 0.1.4 on toolchain b1f2594eac607c1f051534800237eeedb5590a49 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate execution-engine 0.1.4 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8bf5eea7470a61e61c8b8f5b6542f5b0b1cad36212ee8e41c795d4bd1e87a4c7 [INFO] running `Command { std: "docker" "start" "-a" "8bf5eea7470a61e61c8b8f5b6542f5b0b1cad36212ee8e41c795d4bd1e87a4c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8bf5eea7470a61e61c8b8f5b6542f5b0b1cad36212ee8e41c795d4bd1e87a4c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8bf5eea7470a61e61c8b8f5b6542f5b0b1cad36212ee8e41c795d4bd1e87a4c7", kill_on_drop: false }` [INFO] [stdout] 8bf5eea7470a61e61c8b8f5b6542f5b0b1cad36212ee8e41c795d4bd1e87a4c7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 23b0fb9f1dc8abd0eda865318c907e2cb19ceb33cee69d5cebd3aa9180449902 [INFO] running `Command { std: "docker" "start" "-a" "23b0fb9f1dc8abd0eda865318c907e2cb19ceb33cee69d5cebd3aa9180449902", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.119 [INFO] [stderr] Compiling syn v1.0.73 [INFO] [stderr] Compiling futures-core v0.3.16 [INFO] [stderr] Checking instant v0.1.10 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Compiling serde v1.0.127 [INFO] [stderr] Checking futures-io v0.3.16 [INFO] [stderr] Compiling openssl-sys v0.9.65 [INFO] [stderr] Compiling generic-array v0.14.5 [INFO] [stderr] Compiling futures-macro v0.3.16 [INFO] [stderr] Compiling futures-channel v0.3.16 [INFO] [stderr] Compiling futures-task v0.3.16 [INFO] [stderr] Checking futures-sink v0.3.16 [INFO] [stderr] Compiling tokio v1.8.1 [INFO] [stderr] Compiling futures-util v0.3.16 [INFO] [stderr] Compiling ring v0.16.20 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Compiling openssl v0.10.35 [INFO] [stderr] Checking http v0.2.4 [INFO] [stderr] Checking tracing-core v0.1.18 [INFO] [stderr] Compiling native-tls v0.2.7 [INFO] [stderr] Compiling httparse v1.4.1 [INFO] [stderr] Checking signature v1.5.0 [INFO] [stderr] Checking form_urlencoded v1.0.1 [INFO] [stderr] Checking indexmap v1.7.0 [INFO] [stderr] Checking unicode-bidi v0.3.5 [INFO] [stderr] Checking unicode-normalization v0.1.19 [INFO] [stderr] Checking cache-padded v1.2.0 [INFO] [stderr] Checking subtle v2.4.1 [INFO] [stderr] Compiling crossbeam-utils v0.8.7 [INFO] [stderr] Checking ed25519 v1.4.0 [INFO] [stderr] Checking waker-fn v1.1.0 [INFO] [stderr] Checking concurrent-queue v1.2.2 [INFO] [stderr] Compiling encoding_rs v0.8.28 [INFO] [stderr] Checking event-listener v2.5.2 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking getrandom v0.1.16 [INFO] [stderr] Checking mio v0.7.13 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking tracing v0.1.26 [INFO] [stderr] Checking digest v0.9.0 [INFO] [stderr] Checking block-buffer v0.9.0 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking socket2 v0.4.0 [INFO] [stderr] Checking parking v2.0.0 [INFO] [stderr] Checking sha2 v0.9.9 [INFO] [stderr] Checking async-channel v1.6.1 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking futures-lite v1.12.0 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking atomic-waker v1.0.0 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking num_threads v0.1.3 [INFO] [stderr] Checking async-task v4.1.0 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Compiling async-trait v0.1.51 [INFO] [stderr] Checking rustls-pemfile v0.2.1 [INFO] [stderr] Checking crossbeam-channel v0.5.2 [INFO] [stderr] Checking base64-url v1.4.10 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking idna v0.2.3 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking url v2.2.2 [INFO] [stderr] Checking nuid v0.3.2 [INFO] [stderr] Checking blocking v1.1.0 [INFO] [stderr] Checking http-body v0.4.2 [INFO] [stderr] Checking sct v0.6.1 [INFO] [stderr] Checking webpki v0.21.4 [INFO] [stderr] Checking rustls v0.19.1 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Compiling serde_derive v1.0.127 [INFO] [stderr] Compiling tokio-macros v1.3.0 [INFO] [stderr] Compiling zeroize_derive v1.3.2 [INFO] [stderr] Compiling serde_repr v0.1.7 [INFO] [stderr] Compiling thiserror-impl v1.0.26 [INFO] [stderr] Checking rustls-native-certs v0.5.0 [INFO] [stderr] Checking zeroize v1.3.0 [INFO] [stderr] Checking curve25519-dalek v3.2.1 [INFO] [stderr] Checking subtle-encoding v0.5.1 [INFO] [stderr] Checking thiserror v1.0.26 [INFO] [stderr] Checking signatory v0.21.0 [INFO] [stderr] Checking ed25519-dalek v1.0.1 [INFO] [stderr] Checking nkeys v0.1.0 [INFO] [stderr] Checking futures-executor v0.3.16 [INFO] [stderr] Checking futures v0.3.16 [INFO] [stderr] Checking tokio-util v0.6.7 [INFO] [stderr] Checking tokio-native-tls v0.3.0 [INFO] [stderr] Checking h2 v0.3.3 [INFO] [stderr] Checking serde_json v1.0.64 [INFO] [stderr] Checking serde_urlencoded v0.7.0 [INFO] [stderr] Checking serde_nanos v0.1.2 [INFO] [stderr] Checking time v0.3.7 [INFO] [stderr] Checking uuid v0.8.2 [INFO] [stderr] Checking hyper v0.14.10 [INFO] [stderr] Checking eval v0.4.3 [INFO] [stderr] Checking nats v0.18.1 [INFO] [stderr] Checking hyper-tls v0.5.0 [INFO] [stderr] Checking reqwest v0.11.4 [INFO] [stderr] Checking execution-engine v0.1.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `tokio::sync::oneshot` [INFO] [stdout] --> src/spawner.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use tokio::sync::oneshot; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::time::Instant` [INFO] [stdout] --> src/spawner.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use tokio::time::Instant; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Instant` [INFO] [stdout] --> src/workflow.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use std::time::Instant; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::sync::oneshot` [INFO] [stdout] --> src/spawner.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use tokio::sync::oneshot; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::time::Instant` [INFO] [stdout] --> src/spawner.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use tokio::time::Instant; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Instant` [INFO] [stdout] --> src/workflow.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use std::time::Instant; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/reactor.rs:67:13 [INFO] [stdout] | [INFO] [stdout] 67 | let mut response_sub = nats_client.subscribe("activity.response")?; [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/reactor.rs:67:13 [INFO] [stdout] | [INFO] [stdout] 67 | let mut response_sub = nats_client.subscribe("activity.response")?; [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::StreamExt` [INFO] [stdout] --> src/reactor.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 21 | use futures::StreamExt; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::StreamExt` [INFO] [stdout] --> src/reactor.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 21 | use futures::StreamExt; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/node.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | Err(e) => workflow::Message { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/node.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | Err(e) => workflow::Message { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `description` and `fail_on_error` are never read [INFO] [stdout] --> src/node/types.rs:50:5 [INFO] [stdout] | [INFO] [stdout] 47 | pub struct Activity { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 50 | description: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 51 | fail_on_error: bool, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Activity` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id`, `workflow_id`, and `project_id` are never read [INFO] [stdout] --> src/workflow.rs:74:5 [INFO] [stdout] | [INFO] [stdout] 72 | pub struct Workflow { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 73 | /// Database ID to the Workflow [INFO] [stdout] 74 | id: String, [INFO] [stdout] | ^^ [INFO] [stdout] 75 | /// ID used internally to represent the Workflow [INFO] [stdout] 76 | workflow_id: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | project_id: String, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Workflow` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id`, `owner_id`, `context`, `current`, and `status` are never read [INFO] [stdout] --> src/workflow.rs:145:5 [INFO] [stdout] | [INFO] [stdout] 142 | pub struct Job { [INFO] [stdout] | --- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 145 | id: String, [INFO] [stdout] | ^^ [INFO] [stdout] 146 | /// Represents the user_id of the individual who executed the job [INFO] [stdout] 147 | owner_id: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 148 | /// A container type to include all the data returned from each node as the job runs [INFO] [stdout] 149 | context: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 152 | current: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 161 | status: JobStatus, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Job` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `description` and `fail_on_error` are never read [INFO] [stdout] --> src/node/types.rs:50:5 [INFO] [stdout] | [INFO] [stdout] 47 | pub struct Activity { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 50 | description: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 51 | fail_on_error: bool, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Activity` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id`, `workflow_id`, and `project_id` are never read [INFO] [stdout] --> src/workflow.rs:74:5 [INFO] [stdout] | [INFO] [stdout] 72 | pub struct Workflow { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 73 | /// Database ID to the Workflow [INFO] [stdout] 74 | id: String, [INFO] [stdout] | ^^ [INFO] [stdout] 75 | /// ID used internally to represent the Workflow [INFO] [stdout] 76 | workflow_id: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | project_id: String, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Workflow` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id`, `owner_id`, `context`, `current`, and `status` are never read [INFO] [stdout] --> src/workflow.rs:145:5 [INFO] [stdout] | [INFO] [stdout] 142 | pub struct Job { [INFO] [stdout] | --- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 145 | id: String, [INFO] [stdout] | ^^ [INFO] [stdout] 146 | /// Represents the user_id of the individual who executed the job [INFO] [stdout] 147 | owner_id: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 148 | /// A container type to include all the data returned from each node as the job runs [INFO] [stdout] 149 | context: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 152 | current: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 161 | status: JobStatus, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Job` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:95:9 [INFO] [stdout] | [INFO] [stdout] 95 | / spawn_tx [INFO] [stdout] 96 | | .send(spawner::execute_msg(&uuid::Uuid::new_v4().to_string())) [INFO] [stdout] 97 | | .await; [INFO] [stdout] | |__________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 95 | let _ = spawn_tx [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/node/types.rs:196:9 [INFO] [stdout] | [INFO] [stdout] 196 | self.job_channel.send(self.create_msg().await).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 196 | let _ = self.job_channel.send(self.create_msg().await).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:95:9 [INFO] [stdout] | [INFO] [stdout] 95 | / spawn_tx [INFO] [stdout] 96 | | .send(spawner::execute_msg(&uuid::Uuid::new_v4().to_string())) [INFO] [stdout] 97 | | .await; [INFO] [stdout] | |__________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 95 | let _ = spawn_tx [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/node/types.rs:196:9 [INFO] [stdout] | [INFO] [stdout] 196 | self.job_channel.send(self.create_msg().await).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 196 | let _ = self.job_channel.send(self.create_msg().await).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.81s [INFO] running `Command { std: "docker" "inspect" "23b0fb9f1dc8abd0eda865318c907e2cb19ceb33cee69d5cebd3aa9180449902", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "23b0fb9f1dc8abd0eda865318c907e2cb19ceb33cee69d5cebd3aa9180449902", kill_on_drop: false }` [INFO] [stdout] 23b0fb9f1dc8abd0eda865318c907e2cb19ceb33cee69d5cebd3aa9180449902