[INFO] fetching crate for-mqtt-client 0.3.6...
[INFO] checking for-mqtt-client-0.3.6 against 28b6e691688c15cef4c60d9044274e7b84397870 for pr-162986
[INFO] extracting crate for-mqtt-client 0.3.6 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate for-mqtt-client 0.3.6
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate for-mqtt-client 0.3.6
[INFO] tweaked toml for crates.io crate for-mqtt-client 0.3.6 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate for-mqtt-client 0.3.6 on toolchain 28b6e691688c15cef4c60d9044274e7b84397870
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+28b6e691688c15cef4c60d9044274e7b84397870" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate for-mqtt-client 0.3.6 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" "+28b6e691688c15cef4c60d9044274e7b84397870" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "01dc40996b3b938c25a0e7a3763bb46fb4bdf723c85a7ef58c82a80378104349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01dc40996b3b938c25a0e7a3763bb46fb4bdf723c85a7ef58c82a80378104349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "01dc40996b3b938c25a0e7a3763bb46fb4bdf723c85a7ef58c82a80378104349" "/opt/rustwide/cargo-home/bin/cargo" "+28b6e691688c15cef4c60d9044274e7b84397870" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01dc40996b3b938c25a0e7a3763bb46fb4bdf723c85a7ef58c82a80378104349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "01dc40996b3b938c25a0e7a3763bb46fb4bdf723c85a7ef58c82a80378104349" "/opt/rustwide/cargo-home/bin/cargo" "+28b6e691688c15cef4c60d9044274e7b84397870" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: struct `Filter` is never constructed
[INFO] [stdout]   --> src/protocol/packet/subscribe.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub struct Filter {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SubscribeOptions` is never constructed
[INFO] [stdout]   --> src/protocol/packet/subscribe.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub struct SubscribeOptions(u8);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Filter` is never constructed
[INFO] [stdout]   --> src/protocol/packet/unsubscribe.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub struct Filter {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/tasks/task_hub/data.rs:87:16
[INFO] [stdout]    |
[INFO] [stdout] 87 |     NetworkErr(String),
[INFO] [stdout]    |     ---------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ToDisconnectReason` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 87 -     NetworkErr(String),
[INFO] [stdout] 87 +     NetworkErr(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `PublishMsg` is never used
[INFO] [stdout]  --> src/tasks/task_publish/data.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum PublishMsg {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SubscribeMsg` is never used
[INFO] [stdout]  --> src/tasks/task_subscribe/data.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum SubscribeMsg {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Filter` is never constructed
[INFO] [stdout]   --> src/protocol/packet/subscribe.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub struct Filter {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SubscribeOptions` is never constructed
[INFO] [stdout]   --> src/protocol/packet/subscribe.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub struct SubscribeOptions(u8);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Filter` is never constructed
[INFO] [stdout]   --> src/protocol/packet/unsubscribe.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub struct Filter {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/tasks/task_hub/data.rs:87:16
[INFO] [stdout]    |
[INFO] [stdout] 87 |     NetworkErr(String),
[INFO] [stdout]    |     ---------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ToDisconnectReason` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 87 -     NetworkErr(String),
[INFO] [stdout] 87 +     NetworkErr(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `PublishMsg` is never used
[INFO] [stdout]  --> src/tasks/task_publish/data.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum PublishMsg {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SubscribeMsg` is never used
[INFO] [stdout]  --> src/tasks/task_subscribe/data.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum SubscribeMsg {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Read`
[INFO] [stdout]  --> examples/v3_rustls.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{io::Read, time::Duration};
[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 return value of `custom_utils::util_logger::builder::LoggerBuilder3::start` that must be used
[INFO] [stdout]   --> examples/v3_rustls_insecurity.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | /     custom_utils::logger::custom_build(Debug)
[INFO] [stdout] 12 | |         .build_default()
[INFO] [stdout] 13 | |         .log_to_stdout()
[INFO] [stdout] 14 | |         .start();
[INFO] [stdout]    | |________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _unused = ...` to ignore the resulting value without dropping it immediately
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let _unused = custom_utils::logger::custom_build(Debug)
[INFO] [stdout]    |     +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `custom_utils::util_logger::builder::LoggerBuilder3::start` that must be used
[INFO] [stdout]   --> examples/v5_client.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | /     custom_utils::logger::custom_build(Debug)
[INFO] [stdout] 10 | |         // .module("for_mqtt_client::tasks::task_network", Debug)
[INFO] [stdout] 11 | |         // .module("for_mqtt_client::tasks::task_publish", Debug)
[INFO] [stdout] 12 | |         .build_default()
[INFO] [stdout] 13 | |         .log_to_stdout()
[INFO] [stdout] 14 | |         .start();
[INFO] [stdout]    | |________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _unused = ...` to ignore the resulting value without dropping it immediately
[INFO] [stdout]    |
[INFO] [stdout]  9 |     let _unused = custom_utils::logger::custom_build(Debug)
[INFO] [stdout]    |     +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `custom_utils::util_logger::builder::LoggerBuilder3::start` that must be used
[INFO] [stdout]   --> examples/v3_rustls.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | /     custom_utils::logger::custom_build(Debug)
[INFO] [stdout] 12 | |         // .module("for_mqtt_client::tasks::task_network", Debug)
[INFO] [stdout] 13 | |         // .module("for_mqtt_client::tasks::task_publish", Debug)
[INFO] [stdout] 14 | |         .build_default()
[INFO] [stdout] 15 | |         .log_to_stdout()
[INFO] [stdout] 16 | |         .start();
[INFO] [stdout]    | |________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _unused = ...` to ignore the resulting value without dropping it immediately
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let _unused = custom_utils::logger::custom_build(Debug)
[INFO] [stdout]    |     +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `tokio-native-tls`
[INFO] [stderr]   --> Cargo.toml:42:15
[INFO] [stderr]    |
[INFO] [stderr] 42 | [dependencies.tokio-native-tls]
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `tokio-native-tls`
[INFO] [stderr] warning: unused dependency `url`
[INFO] [stderr]   --> Cargo.toml:50:15
[INFO] [stderr]    |
[INFO] [stderr] 50 | [dependencies.url]
[INFO] [stderr]    |               ^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `url`
[INFO] [stderr] warning: `for-mqtt-client` (manifest) generated 2 warnings
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.12s
[INFO] running `Command { std: "docker" "inspect" "01dc40996b3b938c25a0e7a3763bb46fb4bdf723c85a7ef58c82a80378104349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01dc40996b3b938c25a0e7a3763bb46fb4bdf723c85a7ef58c82a80378104349", kill_on_drop: false }`
[INFO] [stdout] 01dc40996b3b938c25a0e7a3763bb46fb4bdf723c85a7ef58c82a80378104349
