[INFO] fetching crate for-mqtt-client 0.3.6...
[INFO] checking for-mqtt-client-0.3.6 against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] extracting crate for-mqtt-client 0.3.6 into /workspace/builds/worker-5-tc2/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-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate for-mqtt-client 0.3.6 on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "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" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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 }`
[INFO] [stdout] d25b8049a62220f008e1be0663ca26374a72ab3038cb5db6a96f0c6fcdf92a0c
[INFO] running `Command { std: "docker" "start" "d25b8049a62220f008e1be0663ca26374a72ab3038cb5db6a96f0c6fcdf92a0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d25b8049a62220f008e1be0663ca26374a72ab3038cb5db6a96f0c6fcdf92a0c", 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" "d25b8049a62220f008e1be0663ca26374a72ab3038cb5db6a96f0c6fcdf92a0c" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d25b8049a62220f008e1be0663ca26374a72ab3038cb5db6a96f0c6fcdf92a0c", 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" "d25b8049a62220f008e1be0663ca26374a72ab3038cb5db6a96f0c6fcdf92a0c" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "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] error: useless conversion to the same type: `std::sync::Arc<String>`
[INFO] [stdout]   --> src/protocol/packet/publish.rs:50:20
[INFO] [stdout]    |
[INFO] [stdout] 50 |             topic: topic.into(),
[INFO] [stdout]    |                    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 50 -             topic: topic.into(),
[INFO] [stdout] 50 +             topic: topic,
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 50 -             topic: topic.into(),
[INFO] [stdout] 50 +             topic: <std::sync::Arc<String> as Into<_>>::into(topic),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::sync::Arc<bytes::Bytes>`
[INFO] [stdout]   --> src/protocol/packet/publish.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 |             payload: payload.into(),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 51 -             payload: payload.into(),
[INFO] [stdout] 51 +             payload: payload,
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 51 -             payload: payload.into(),
[INFO] [stdout] 51 +             payload: <std::sync::Arc<bytes::Bytes> as Into<_>>::into(payload),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `bytes::Bytes`
[INFO] [stdout]    --> src/protocol/packet/publish.rs:102:35
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 payload: Arc::new(bytes.into()),
[INFO] [stdout]     |                                   ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 102 -                 payload: Arc::new(bytes.into()),
[INFO] [stdout] 102 +                 payload: Arc::new(bytes),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 102 -                 payload: Arc::new(bytes.into()),
[INFO] [stdout] 102 +                 payload: Arc::new(<bytes::Bytes as Into<_>>::into(bytes)),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `bytes::Bytes`
[INFO] [stdout]    --> src/protocol/packet/publish.rs:114:39
[INFO] [stdout]     |
[INFO] [stdout] 114 |                     payload: Arc::new(bytes.into()),
[INFO] [stdout]     |                                       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 114 -                     payload: Arc::new(bytes.into()),
[INFO] [stdout] 114 +                     payload: Arc::new(bytes),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 114 -                     payload: Arc::new(bytes.into()),
[INFO] [stdout] 114 +                     payload: Arc::new(<bytes::Bytes as Into<_>>::into(bytes)),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `task_network::data::Stream`
[INFO] [stdout]    --> src/tasks/task_network/mod.rs:209:19
[INFO] [stdout]     |
[INFO] [stdout] 209 |         return Ok(stream.into());
[INFO] [stdout]     |                   ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 209 -         return Ok(stream.into());
[INFO] [stdout] 209 +         return Ok(stream);
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 209 -         return Ok(stream.into());
[INFO] [stdout] 209 +         return Ok(<task_network::data::Stream as Into<_>>::into(stream));
[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] error: useless conversion to the same type: `std::sync::Arc<String>`
[INFO] [stdout]   --> src/protocol/packet/publish.rs:50:20
[INFO] [stdout]    |
[INFO] [stdout] 50 |             topic: topic.into(),
[INFO] [stdout]    |                    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 50 -             topic: topic.into(),
[INFO] [stdout] 50 +             topic: topic,
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 50 -             topic: topic.into(),
[INFO] [stdout] 50 +             topic: <std::sync::Arc<String> as Into<_>>::into(topic),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::sync::Arc<bytes::Bytes>`
[INFO] [stdout]   --> src/protocol/packet/publish.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 |             payload: payload.into(),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 51 -             payload: payload.into(),
[INFO] [stdout] 51 +             payload: payload,
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 51 -             payload: payload.into(),
[INFO] [stdout] 51 +             payload: <std::sync::Arc<bytes::Bytes> as Into<_>>::into(payload),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `bytes::Bytes`
[INFO] [stdout]    --> src/protocol/packet/publish.rs:102:35
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 payload: Arc::new(bytes.into()),
[INFO] [stdout]     |                                   ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 102 -                 payload: Arc::new(bytes.into()),
[INFO] [stdout] 102 +                 payload: Arc::new(bytes),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 102 -                 payload: Arc::new(bytes.into()),
[INFO] [stdout] 102 +                 payload: Arc::new(<bytes::Bytes as Into<_>>::into(bytes)),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `bytes::Bytes`
[INFO] [stdout]    --> src/protocol/packet/publish.rs:114:39
[INFO] [stdout]     |
[INFO] [stdout] 114 |                     payload: Arc::new(bytes.into()),
[INFO] [stdout]     |                                       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 114 -                     payload: Arc::new(bytes.into()),
[INFO] [stdout] 114 +                     payload: Arc::new(bytes),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 114 -                     payload: Arc::new(bytes.into()),
[INFO] [stdout] 114 +                     payload: Arc::new(<bytes::Bytes as Into<_>>::into(bytes)),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `task_network::data::Stream`
[INFO] [stdout]    --> src/tasks/task_network/mod.rs:209:19
[INFO] [stdout]     |
[INFO] [stdout] 209 |         return Ok(stream.into());
[INFO] [stdout]     |                   ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 209 -         return Ok(stream.into());
[INFO] [stdout] 209 +         return Ok(stream);
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 209 -         return Ok(stream.into());
[INFO] [stdout] 209 +         return Ok(<task_network::data::Stream as Into<_>>::into(stream));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `for-mqtt-client` (lib test) due to 5 previous errors; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `for-mqtt-client` (lib) due to 5 previous errors; 6 warnings emitted
[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] running `Command { std: "docker" "inspect" "d25b8049a62220f008e1be0663ca26374a72ab3038cb5db6a96f0c6fcdf92a0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d25b8049a62220f008e1be0663ca26374a72ab3038cb5db6a96f0c6fcdf92a0c", kill_on_drop: false }`
[INFO] [stdout] d25b8049a62220f008e1be0663ca26374a72ab3038cb5db6a96f0c6fcdf92a0c
