[INFO] fetching crate mqtt-async-embedded 1.0.0...
[INFO] testing mqtt-async-embedded-1.0.0 against master#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681
[INFO] extracting crate mqtt-async-embedded 1.0.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate mqtt-async-embedded 1.0.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mqtt-async-embedded 1.0.0
[INFO] tweaked toml for crates.io crate mqtt-async-embedded 1.0.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mqtt-async-embedded 1.0.0 on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mqtt-async-embedded 1.0.0 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" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cfg-if v1.0.3
[INFO] [stderr]   Downloaded embedded-hal-async v1.0.0
[INFO] [stderr]   Downloaded static_cell v2.1.1
[INFO] [stderr]   Downloaded embedded-io-async v0.6.1
[INFO] [stderr]   Downloaded embedded-hal v1.0.0
[INFO] [stderr]   Downloaded bitflags v2.9.4
[INFO] [stderr]   Downloaded defmt-parser v1.0.0
[INFO] [stderr]   Downloaded embassy-executor-macros v0.7.0
[INFO] [stderr]   Downloaded embassy-executor-timer-queue v0.1.0
[INFO] [stderr]   Downloaded embassy-time-queue-utils v0.3.0
[INFO] [stderr]   Downloaded nb v0.1.3
[INFO] [stderr]   Downloaded defmt-macros v1.0.1
[INFO] [stderr]   Downloaded embassy-executor v0.9.1
[INFO] [stderr]   Downloaded embassy-sync v0.7.2
[INFO] [stderr]   Downloaded heapless v0.9.1
[INFO] [stderr]   Downloaded litrs v0.4.2
[INFO] [stderr]   Downloaded embassy-net v0.7.1
[INFO] [stderr]   Downloaded embassy-time v0.5.0
[INFO] [stderr]   Downloaded jiff-static v0.2.15
[INFO] [stderr]   Downloaded defmt v1.0.1
[INFO] [stderr]   Downloaded managed v0.8.0
[INFO] [stderr]   Downloaded critical-section v1.2.0
[INFO] [stderr]   Downloaded embedded-hal v0.2.7
[INFO] [stderr]   Downloaded embassy-net-driver v0.2.0
[INFO] [stderr]   Downloaded embedded-nal-async v0.8.0
[INFO] [stderr]   Downloaded embassy-time-driver v0.2.1
[INFO] [stderr]   Downloaded embedded-nal v0.9.0
[INFO] [stderr]   Downloaded nb v1.1.0
[INFO] [stderr]   Downloaded smoltcp v0.12.0
[INFO] [stderr]   Downloaded jiff v0.2.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 915198cf7db75a62b84ee0e0bdf7ae586bf74f3382e8081b7f5b7fb5ab1a590a
[INFO] running `Command { std: "docker" "start" "-a" "915198cf7db75a62b84ee0e0bdf7ae586bf74f3382e8081b7f5b7fb5ab1a590a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "915198cf7db75a62b84ee0e0bdf7ae586bf74f3382e8081b7f5b7fb5ab1a590a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "915198cf7db75a62b84ee0e0bdf7ae586bf74f3382e8081b7f5b7fb5ab1a590a", kill_on_drop: false }`
[INFO] [stdout] 915198cf7db75a62b84ee0e0bdf7ae586bf74f3382e8081b7f5b7fb5ab1a590a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f485839b57765c4a1ebcea27877ed115c65e8e249b6416afbdb0406f8224a38d
[INFO] running `Command { std: "docker" "start" "-a" "f485839b57765c4a1ebcea27877ed115c65e8e249b6416afbdb0406f8224a38d", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling embassy-time-driver v0.2.1
[INFO] [stderr]    Compiling embedded-hal-async v1.0.0
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling litrs v0.4.2
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling heapless v0.9.1
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling embedded-io-async v0.6.1
[INFO] [stderr]    Compiling embedded-hal v1.0.0
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling embedded-io v0.6.1
[INFO] [stderr]    Compiling critical-section v1.2.0
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling document-features v0.2.11
[INFO] [stderr]    Compiling embassy-time v0.5.0
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling mqtt-async-embedded v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ConnectReasonCode`
[INFO] [stdout]  --> src/client.rs:6:20
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::error::{ConnectReasonCode, MqttError, ProtocolError};
[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 imports: `ConnAck`, `DecodePacket`, `Disconnect`, `SubAck`, and `Subscribe`
[INFO] [stdout]  --> src/client.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     self, ConnAck, Connect, DecodePacket, Disconnect, EncodePacket, MqttPacket, PingReq, Publish,
[INFO] [stdout]   |           ^^^^^^^           ^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 9 |     QoS, SubAck, Subscribe,
[INFO] [stdout]   |          ^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `String` and `Vec`
[INFO] [stdout]   --> src/client.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 | use heapless::{String, Vec};
[INFO] [stdout]    |                ^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `read_variable_byte_integer`
[INFO] [stdout]   --> src/packet.rs:11:29
[INFO] [stdout]    |
[INFO] [stdout] 11 |     self, read_utf8_string, read_variable_byte_integer, write_utf8_string,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::packet`
[INFO] [stdout]  --> src/util.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::packet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `heapless::Vec`
[INFO] [stdout]  --> src/util.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use heapless::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]    --> src/packet.rs:140:30
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn decode(buf: &'a [u8], version: MqttVersion) -> Result<Self, MqttError<transport::ErrorPlaceHolder>> {
[INFO] [stdout]     |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]    --> src/packet.rs:163:30
[INFO] [stdout]     |
[INFO] [stdout] 163 |     fn decode(buf: &'a [u8], version: MqttVersion) -> Result<Self, MqttError<transport::ErrorPlaceHolder>> {
[INFO] [stdout]     |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `cursor` is never read
[INFO] [stdout]    --> src/packet.rs:166:40
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let reason_code = buf[cursor]; cursor += 1;
[INFO] [stdout]     |                                        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `broker_addr` and `broker_port` are never read
[INFO] [stdout]   --> src/client.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct MqttOptions<'a> {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 25 |     client_id: &'a str,
[INFO] [stdout] 26 |     broker_addr: &'a str,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 27 |     broker_port: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `next_packet_id` is never read
[INFO] [stdout]   --> src/client.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct MqttClient<'a, T, const MAX_TOPICS: usize, const BUF_SIZE: usize>
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 61 |     next_packet_id: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_next_packet_id` is never used
[INFO] [stdout]    --> src/client.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout]  64 | / impl<'a, T, const MAX_TOPICS: usize, const BUF_SIZE: usize>
[INFO] [stdout]  65 | | MqttClient<'a, T, MAX_TOPICS, BUF_SIZE>
[INFO] [stdout]  66 | | where
[INFO] [stdout]  67 | |     T: MqttTransport,
[INFO] [stdout]     | |_____________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 162 |       fn get_next_packet_id(&mut self) -> u16 {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stdout]   --> src/transport.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     async fn send(&mut self, buf: &[u8]) -> Result<(), Self::Error>;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stdout]    = note: `#[warn(async_fn_in_trait)]` on by default
[INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stdout]    |
[INFO] [stdout] 26 -     async fn send(&mut self, buf: &[u8]) -> Result<(), Self::Error>;
[INFO] [stdout] 26 +     fn send(&mut self, buf: &[u8]) -> impl std::future::Future<Output = Result<(), Self::Error>> + Send;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stdout]   --> src/transport.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     async fn recv(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error>;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stdout]    |
[INFO] [stdout] 31 -     async fn recv(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error>;
[INFO] [stdout] 31 +     fn recv(&mut self, buf: &mut [u8]) -> impl std::future::Future<Output = Result<usize, Self::Error>> + Send;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.06s
[INFO] running `Command { std: "docker" "inspect" "f485839b57765c4a1ebcea27877ed115c65e8e249b6416afbdb0406f8224a38d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f485839b57765c4a1ebcea27877ed115c65e8e249b6416afbdb0406f8224a38d", kill_on_drop: false }`
[INFO] [stdout] f485839b57765c4a1ebcea27877ed115c65e8e249b6416afbdb0406f8224a38d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0afe88af8e8f6c4b414a3327213cb839d54633497af7860fa25bd0d537cad05
[INFO] running `Command { std: "docker" "start" "-a" "f0afe88af8e8f6c4b414a3327213cb839d54633497af7860fa25bd0d537cad05", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `ConnectReasonCode`
[INFO] [stdout]  --> src/client.rs:6:20
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::error::{ConnectReasonCode, MqttError, ProtocolError};
[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 imports: `ConnAck`, `DecodePacket`, `Disconnect`, `SubAck`, and `Subscribe`
[INFO] [stdout]  --> src/client.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     self, ConnAck, Connect, DecodePacket, Disconnect, EncodePacket, MqttPacket, PingReq, Publish,
[INFO] [stdout]   |           ^^^^^^^           ^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 9 |     QoS, SubAck, Subscribe,
[INFO] [stdout]   |          ^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `String` and `Vec`
[INFO] [stdout]   --> src/client.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 | use heapless::{String, Vec};
[INFO] [stdout]    |                ^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `read_variable_byte_integer`
[INFO] [stdout]   --> src/packet.rs:11:29
[INFO] [stdout]    |
[INFO] [stdout] 11 |     self, read_utf8_string, read_variable_byte_integer, write_utf8_string,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::packet`
[INFO] [stdout]  --> src/util.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::packet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `heapless::Vec`
[INFO] [stdout]  --> src/util.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use heapless::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]    --> src/packet.rs:140:30
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn decode(buf: &'a [u8], version: MqttVersion) -> Result<Self, MqttError<transport::ErrorPlaceHolder>> {
[INFO] [stdout]     |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]    --> src/packet.rs:163:30
[INFO] [stdout]     |
[INFO] [stdout] 163 |     fn decode(buf: &'a [u8], version: MqttVersion) -> Result<Self, MqttError<transport::ErrorPlaceHolder>> {
[INFO] [stdout]     |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `cursor` is never read
[INFO] [stdout]    --> src/packet.rs:166:40
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let reason_code = buf[cursor]; cursor += 1;
[INFO] [stdout]     |                                        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `broker_addr` and `broker_port` are never read
[INFO] [stdout]   --> src/client.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct MqttOptions<'a> {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 25 |     client_id: &'a str,
[INFO] [stdout] 26 |     broker_addr: &'a str,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 27 |     broker_port: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `next_packet_id` is never read
[INFO] [stdout]   --> src/client.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct MqttClient<'a, T, const MAX_TOPICS: usize, const BUF_SIZE: usize>
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 61 |     next_packet_id: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_next_packet_id` is never used
[INFO] [stdout]    --> src/client.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout]  64 | / impl<'a, T, const MAX_TOPICS: usize, const BUF_SIZE: usize>
[INFO] [stdout]  65 | | MqttClient<'a, T, MAX_TOPICS, BUF_SIZE>
[INFO] [stdout]  66 | | where
[INFO] [stdout]  67 | |     T: MqttTransport,
[INFO] [stdout]     | |_____________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 162 |       fn get_next_packet_id(&mut self) -> u16 {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stdout]   --> src/transport.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     async fn send(&mut self, buf: &[u8]) -> Result<(), Self::Error>;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stdout]    = note: `#[warn(async_fn_in_trait)]` on by default
[INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stdout]    |
[INFO] [stdout] 26 -     async fn send(&mut self, buf: &[u8]) -> Result<(), Self::Error>;
[INFO] [stdout] 26 +     fn send(&mut self, buf: &[u8]) -> impl std::future::Future<Output = Result<(), Self::Error>> + Send;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stdout]   --> src/transport.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     async fn recv(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error>;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stdout]    |
[INFO] [stdout] 31 -     async fn recv(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error>;
[INFO] [stdout] 31 +     fn recv(&mut self, buf: &mut [u8]) -> impl std::future::Future<Output = Result<usize, Self::Error>> + Send;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mqtt-async-embedded v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ConnectReasonCode`
[INFO] [stdout]  --> src/client.rs:6:20
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::error::{ConnectReasonCode, MqttError, ProtocolError};
[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 imports: `ConnAck`, `DecodePacket`, `Disconnect`, `SubAck`, and `Subscribe`
[INFO] [stdout]  --> src/client.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     self, ConnAck, Connect, DecodePacket, Disconnect, EncodePacket, MqttPacket, PingReq, Publish,
[INFO] [stdout]   |           ^^^^^^^           ^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 9 |     QoS, SubAck, Subscribe,
[INFO] [stdout]   |          ^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `String` and `Vec`
[INFO] [stdout]   --> src/client.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 | use heapless::{String, Vec};
[INFO] [stdout]    |                ^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `read_variable_byte_integer`
[INFO] [stdout]   --> src/packet.rs:11:29
[INFO] [stdout]    |
[INFO] [stdout] 11 |     self, read_utf8_string, read_variable_byte_integer, write_utf8_string,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::packet`
[INFO] [stdout]  --> src/util.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::packet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `heapless::Vec`
[INFO] [stdout]  --> src/util.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use heapless::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]    --> src/packet.rs:140:30
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn decode(buf: &'a [u8], version: MqttVersion) -> Result<Self, MqttError<transport::ErrorPlaceHolder>> {
[INFO] [stdout]     |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]    --> src/packet.rs:163:30
[INFO] [stdout]     |
[INFO] [stdout] 163 |     fn decode(buf: &'a [u8], version: MqttVersion) -> Result<Self, MqttError<transport::ErrorPlaceHolder>> {
[INFO] [stdout]     |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `cursor` is never read
[INFO] [stdout]    --> src/packet.rs:166:40
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let reason_code = buf[cursor]; cursor += 1;
[INFO] [stdout]     |                                        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `broker_addr` and `broker_port` are never read
[INFO] [stdout]   --> src/client.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct MqttOptions<'a> {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 25 |     client_id: &'a str,
[INFO] [stdout] 26 |     broker_addr: &'a str,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 27 |     broker_port: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `next_packet_id` is never read
[INFO] [stdout]   --> src/client.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct MqttClient<'a, T, const MAX_TOPICS: usize, const BUF_SIZE: usize>
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 61 |     next_packet_id: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_next_packet_id` is never used
[INFO] [stdout]    --> src/client.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout]  64 | / impl<'a, T, const MAX_TOPICS: usize, const BUF_SIZE: usize>
[INFO] [stdout]  65 | | MqttClient<'a, T, MAX_TOPICS, BUF_SIZE>
[INFO] [stdout]  66 | | where
[INFO] [stdout]  67 | |     T: MqttTransport,
[INFO] [stdout]     | |_____________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 162 |       fn get_next_packet_id(&mut self) -> u16 {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stdout]   --> src/transport.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     async fn send(&mut self, buf: &[u8]) -> Result<(), Self::Error>;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stdout]    = note: `#[warn(async_fn_in_trait)]` on by default
[INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stdout]    |
[INFO] [stdout] 26 -     async fn send(&mut self, buf: &[u8]) -> Result<(), Self::Error>;
[INFO] [stdout] 26 +     fn send(&mut self, buf: &[u8]) -> impl std::future::Future<Output = Result<(), Self::Error>> + Send;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stdout]   --> src/transport.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     async fn recv(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error>;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stdout]    |
[INFO] [stdout] 31 -     async fn recv(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error>;
[INFO] [stdout] 31 +     fn recv(&mut self, buf: &mut [u8]) -> impl std::future::Future<Output = Result<usize, Self::Error>> + Send;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "f0afe88af8e8f6c4b414a3327213cb839d54633497af7860fa25bd0d537cad05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0afe88af8e8f6c4b414a3327213cb839d54633497af7860fa25bd0d537cad05", kill_on_drop: false }`
[INFO] [stdout] f0afe88af8e8f6c4b414a3327213cb839d54633497af7860fa25bd0d537cad05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 915931da7f4fdf8f06139a1051ca6bd4e5a9891f89a080f14f49bb6156edf51d
[INFO] running `Command { std: "docker" "start" "-a" "915931da7f4fdf8f06139a1051ca6bd4e5a9891f89a080f14f49bb6156edf51d", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `ConnectReasonCode`
[INFO] [stderr]  --> src/client.rs:6:20
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::error::{ConnectReasonCode, MqttError, ProtocolError};
[INFO] [stderr]   |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ConnAck`, `DecodePacket`, `Disconnect`, `SubAck`, and `Subscribe`
[INFO] [stderr]  --> src/client.rs:8:11
[INFO] [stderr]   |
[INFO] [stderr] 8 |     self, ConnAck, Connect, DecodePacket, Disconnect, EncodePacket, MqttPacket, PingReq, Publish,
[INFO] [stderr]   |           ^^^^^^^           ^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 9 |     QoS, SubAck, Subscribe,
[INFO] [stderr]   |          ^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `String` and `Vec`
[INFO] [stderr]   --> src/client.rs:13:16
[INFO] [stderr]    |
[INFO] [stderr] 13 | use heapless::{String, Vec};
[INFO] [stderr]    |                ^^^^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `read_variable_byte_integer`
[INFO] [stderr]   --> src/packet.rs:11:29
[INFO] [stderr]    |
[INFO] [stderr] 11 |     self, read_utf8_string, read_variable_byte_integer, write_utf8_string,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::packet`
[INFO] [stderr]  --> src/util.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::packet;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `heapless::Vec`
[INFO] [stderr]  --> src/util.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use heapless::Vec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `version`
[INFO] [stderr]    --> src/packet.rs:140:30
[INFO] [stderr]     |
[INFO] [stderr] 140 |     fn decode(buf: &'a [u8], version: MqttVersion) -> Result<Self, MqttError<transport::ErrorPlaceHolder>> {
[INFO] [stderr]     |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `version`
[INFO] [stderr]    --> src/packet.rs:163:30
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn decode(buf: &'a [u8], version: MqttVersion) -> Result<Self, MqttError<transport::ErrorPlaceHolder>> {
[INFO] [stderr]     |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `cursor` is never read
[INFO] [stderr]    --> src/packet.rs:166:40
[INFO] [stderr]     |
[INFO] [stderr] 166 |         let reason_code = buf[cursor]; cursor += 1;
[INFO] [stderr]     |                                        ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `broker_addr` and `broker_port` are never read
[INFO] [stderr]   --> src/client.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub struct MqttOptions<'a> {
[INFO] [stderr]    |            ----------- fields in this struct
[INFO] [stderr] 25 |     client_id: &'a str,
[INFO] [stderr] 26 |     broker_addr: &'a str,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 27 |     broker_port: u16,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `next_packet_id` is never read
[INFO] [stderr]   --> src/client.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 51 | pub struct MqttClient<'a, T, const MAX_TOPICS: usize, const BUF_SIZE: usize>
[INFO] [stderr]    |            ---------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 61 |     next_packet_id: u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `get_next_packet_id` is never used
[INFO] [stderr]    --> src/client.rs:162:8
[INFO] [stderr]     |
[INFO] [stderr]  64 | / impl<'a, T, const MAX_TOPICS: usize, const BUF_SIZE: usize>
[INFO] [stderr]  65 | | MqttClient<'a, T, MAX_TOPICS, BUF_SIZE>
[INFO] [stderr]  66 | | where
[INFO] [stderr]  67 | |     T: MqttTransport,
[INFO] [stderr]     | |_____________________- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 162 |       fn get_next_packet_id(&mut self) -> u16 {
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stderr]   --> src/transport.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     async fn send(&mut self, buf: &[u8]) -> Result<(), Self::Error>;
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stderr]    = note: `#[warn(async_fn_in_trait)]` on by default
[INFO] [stderr] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stderr]    |
[INFO] [stderr] 26 -     async fn send(&mut self, buf: &[u8]) -> Result<(), Self::Error>;
[INFO] [stderr] 26 +     fn send(&mut self, buf: &[u8]) -> impl std::future::Future<Output = Result<(), Self::Error>> + Send;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stderr]   --> src/transport.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     async fn recv(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error>;
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stderr] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stderr]    |
[INFO] [stderr] 31 -     async fn recv(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error>;
[INFO] [stderr] 31 +     fn recv(&mut self, buf: &mut [u8]) -> impl std::future::Future<Output = Result<usize, Self::Error>> + Send;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `mqtt-async-embedded` (lib) generated 14 warnings (run `cargo fix --lib -p mqtt-async-embedded` to apply 8 suggestions)
[INFO] [stderr] warning: `mqtt-async-embedded` (lib test) generated 14 warnings (14 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mqtt_async_embedded-e9a1072a8d07168a)
[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]    Doc-tests mqtt_async_embedded
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 24) - compile ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 24) stdout ----
[INFO] [stdout] error[E0277]: the trait bound `(): TransportError` is not satisfied
[INFO] [stdout]   --> src/lib.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | client.connect().await?;
[INFO] [stdout]    |        ^^^^^^^ the trait `TransportError` is not implemented for `()`
[INFO] [stdout]    |
[INFO] [stdout] help: the following other types implement trait `TransportError`
[INFO] [stdout]   --> src/transport.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl TransportError for ErrorPlaceHolder {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `mqtt_async_embedded::transport::ErrorPlaceHolder`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/error.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl transport::TransportError for ErrorPlaceHolder {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `mqtt_async_embedded::error::ErrorPlaceHolder`
[INFO] [stdout] note: required by a bound in `MqttClient::<'a, T, MAX_TOPICS, BUF_SIZE>::connect`
[INFO] [stdout]   --> src/client.rs:76:19
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub async fn connect(&mut self) -> Result<(), MqttError<T::Error>>
[INFO] [stdout]    |                  ------- required by a bound in this associated function
[INFO] [stdout] 75 |     where
[INFO] [stdout] 76 |         T::Error: transport::TransportError,
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `MqttClient::<'a, T, MAX_TOPICS, BUF_SIZE>::connect`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `(): TransportError` is not satisfied
[INFO] [stdout]   --> src/lib.rs:43:1
[INFO] [stdout]    |
[INFO] [stdout] 43 | client.connect().await?;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^ the trait `TransportError` is not implemented for `()`
[INFO] [stdout]    |
[INFO] [stdout] help: the following other types implement trait `TransportError`
[INFO] [stdout]   --> src/transport.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl TransportError for ErrorPlaceHolder {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `mqtt_async_embedded::transport::ErrorPlaceHolder`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/error.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl transport::TransportError for ErrorPlaceHolder {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `mqtt_async_embedded::error::ErrorPlaceHolder`
[INFO] [stdout] note: required by a bound in `MqttClient::<'a, T, MAX_TOPICS, BUF_SIZE>::connect`
[INFO] [stdout]   --> src/client.rs:76:19
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub async fn connect(&mut self) -> Result<(), MqttError<T::Error>>
[INFO] [stdout]    |                  ------- required by a bound in this associated function
[INFO] [stdout] 75 |     where
[INFO] [stdout] 76 |         T::Error: transport::TransportError,
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `MqttClient::<'a, T, MAX_TOPICS, BUF_SIZE>::connect`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `(): TransportError` is not satisfied
[INFO] [stdout]   --> src/lib.rs:43:18
[INFO] [stdout]    |
[INFO] [stdout] 43 | client.connect().await?;
[INFO] [stdout]    |                  ^^^^^ the trait `TransportError` is not implemented for `()`
[INFO] [stdout]    |
[INFO] [stdout] help: the following other types implement trait `TransportError`
[INFO] [stdout]   --> src/transport.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl TransportError for ErrorPlaceHolder {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `mqtt_async_embedded::transport::ErrorPlaceHolder`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/error.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl transport::TransportError for ErrorPlaceHolder {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `mqtt_async_embedded::error::ErrorPlaceHolder`
[INFO] [stdout] note: required by a bound in `MqttClient::<'a, T, MAX_TOPICS, BUF_SIZE>::connect`
[INFO] [stdout]   --> src/client.rs:76:19
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub async fn connect(&mut self) -> Result<(), MqttError<T::Error>>
[INFO] [stdout]    |                  ------- required by a bound in this associated function
[INFO] [stdout] 75 |     where
[INFO] [stdout] 76 |         T::Error: transport::TransportError,
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `MqttClient::<'a, T, MAX_TOPICS, BUF_SIZE>::connect`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `(): TransportError` is not satisfied
[INFO] [stdout]    --> src/lib.rs:44:8
[INFO] [stdout]     |
[INFO] [stdout]  44 | client.publish("sensors/temperature", b"25.3", QoS::AtLeastOnce).await?;
[INFO] [stdout]     |        ^^^^^^^ the trait `TransportError` is not implemented for `()`
[INFO] [stdout]     |
[INFO] [stdout] help: the following other types implement trait `TransportError`
[INFO] [stdout]    --> src/transport.rs:35:1
[INFO] [stdout]     |
[INFO] [stdout]  35 | impl TransportError for ErrorPlaceHolder {}
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `mqtt_async_embedded::transport::ErrorPlaceHolder`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/error.rs:15:1
[INFO] [stdout]     |
[INFO] [stdout]  15 | impl transport::TransportError for ErrorPlaceHolder {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `mqtt_async_embedded::error::ErrorPlaceHolder`
[INFO] [stdout] note: required by a bound in `MqttClient::<'a, T, MAX_TOPICS, BUF_SIZE>::publish`
[INFO] [stdout]    --> src/client.rs:114:19
[INFO] [stdout]     |
[INFO] [stdout] 107 |     pub async fn publish<'p>(
[INFO] [stdout]     |                  ------- required by a bound in this associated function
[INFO] [stdout] ...
[INFO] [stdout] 114 |         T::Error: transport::TransportError,
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `MqttClient::<'a, T, MAX_TOPICS, BUF_SIZE>::publish`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `(): TransportError` is not satisfied
[INFO] [stdout]    --> src/lib.rs:44:1
[INFO] [stdout]     |
[INFO] [stdout]  44 | client.publish("sensors/temperature", b"25.3", QoS::AtLeastOnce).await?;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `TransportError` is not implemented for `()`
[INFO] [stdout]     |
[INFO] [stdout] help: the following other types implement trait `TransportError`
[INFO] [stdout]    --> src/transport.rs:35:1
[INFO] [stdout]     |
[INFO] [stdout]  35 | impl TransportError for ErrorPlaceHolder {}
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `mqtt_async_embedded::transport::ErrorPlaceHolder`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/error.rs:15:1
[INFO] [stdout]     |
[INFO] [stdout]  15 | impl transport::TransportError for ErrorPlaceHolder {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `mqtt_async_embedded::error::ErrorPlaceHolder`
[INFO] [stdout] note: required by a bound in `MqttClient::<'a, T, MAX_TOPICS, BUF_SIZE>::publish`
[INFO] [stdout]    --> src/client.rs:114:19
[INFO] [stdout]     |
[INFO] [stdout] 107 |     pub async fn publish<'p>(
[INFO] [stdout]     |                  ------- required by a bound in this associated function
[INFO] [stdout] ...
[INFO] [stdout] 114 |         T::Error: transport::TransportError,
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `MqttClient::<'a, T, MAX_TOPICS, BUF_SIZE>::publish`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `(): TransportError` is not satisfied
[INFO] [stdout]    --> src/lib.rs:44:66
[INFO] [stdout]     |
[INFO] [stdout]  44 | client.publish("sensors/temperature", b"25.3", QoS::AtLeastOnce).await?;
[INFO] [stdout]     |                                                                  ^^^^^ the trait `TransportError` is not implemented for `()`
[INFO] [stdout]     |
[INFO] [stdout] help: the following other types implement trait `TransportError`
[INFO] [stdout]    --> src/transport.rs:35:1
[INFO] [stdout]     |
[INFO] [stdout]  35 | impl TransportError for ErrorPlaceHolder {}
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `mqtt_async_embedded::transport::ErrorPlaceHolder`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/error.rs:15:1
[INFO] [stdout]     |
[INFO] [stdout]  15 | impl transport::TransportError for ErrorPlaceHolder {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `mqtt_async_embedded::error::ErrorPlaceHolder`
[INFO] [stdout] note: required by a bound in `MqttClient::<'a, T, MAX_TOPICS, BUF_SIZE>::publish`
[INFO] [stdout]    --> src/client.rs:114:19
[INFO] [stdout]     |
[INFO] [stdout] 107 |     pub async fn publish<'p>(
[INFO] [stdout]     |                  ------- required by a bound in this associated function
[INFO] [stdout] ...
[INFO] [stdout] 114 |         T::Error: transport::TransportError,
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `MqttClient::<'a, T, MAX_TOPICS, BUF_SIZE>::publish`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `(): TransportError` is not satisfied
[INFO] [stdout]    --> src/lib.rs:48:33
[INFO] [stdout]     |
[INFO] [stdout]  48 |     if let Some(event) = client.poll().await? {
[INFO] [stdout]     |                                 ^^^^ the trait `TransportError` is not implemented for `()`
[INFO] [stdout]     |
[INFO] [stdout] help: the following other types implement trait `TransportError`
[INFO] [stdout]    --> src/transport.rs:35:1
[INFO] [stdout]     |
[INFO] [stdout]  35 | impl TransportError for ErrorPlaceHolder {}
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `mqtt_async_embedded::transport::ErrorPlaceHolder`
[INFO] [stdout]     |
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout]    ::: src/error.rs:15:1
[INFO] [stdout]     |
[INFO] [stdout]  15 | impl transport::TransportError for ErrorPlaceHolder {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `mqtt_async_embedded::error::ErrorPlaceHolder`
[INFO] [stdout] note: required by a bound in `MqttClient::<'a, T, MAX_TOPICS, BUF_SIZE>::poll`
[INFO] [stdout]    --> src/client.rs:142:19
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub async fn poll<'p>(&'p mut self) -> Result<Option<MqttEvent<'p>>, MqttError<T::Error>>
[INFO] [stdout]     |                  ---- required by a bound in this associated function
[INFO] [stdout] 141 |     where
[INFO] [stdout] 142 |         T::Error: transport::TransportError,
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `MqttClient::<'a, T, MAX_TOPICS, BUF_SIZE>::poll`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `(): TransportError` is not satisfied
[INFO] [stdout]    --> src/lib.rs:48:26
[INFO] [stdout]     |
[INFO] [stdout]  48 |     if let Some(event) = client.poll().await? {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^ the trait `TransportError` is not implemented for `()`
[INFO] [stdout]     |
[INFO] [stdout] help: the following other types implement trait `TransportError`
[INFO] [stdout]    --> src/transport.rs:35:1
[INFO] [stdout]     |
[INFO] [stdout]  35 | impl TransportError for ErrorPlaceHolder {}
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `mqtt_async_embedded::transport::ErrorPlaceHolder`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/error.rs:15:1
[INFO] [stdout]     |
[INFO] [stdout]  15 | impl transport::TransportError for ErrorPlaceHolder {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `mqtt_async_embedded::error::ErrorPlaceHolder`
[INFO] [stdout] note: required by a bound in `MqttClient::<'a, T, MAX_TOPICS, BUF_SIZE>::poll`
[INFO] [stdout]    --> src/client.rs:142:19
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub async fn poll<'p>(&'p mut self) -> Result<Option<MqttEvent<'p>>, MqttError<T::Error>>
[INFO] [stdout]     |                  ---- required by a bound in this associated function
[INFO] [stdout] 141 |     where
[INFO] [stdout] 142 |         T::Error: transport::TransportError,
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `MqttClient::<'a, T, MAX_TOPICS, BUF_SIZE>::poll`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `(): TransportError` is not satisfied
[INFO] [stdout]    --> src/lib.rs:48:40
[INFO] [stdout]     |
[INFO] [stdout]  48 |     if let Some(event) = client.poll().await? {
[INFO] [stdout]     |                                        ^^^^^ the trait `TransportError` is not implemented for `()`
[INFO] [stdout]     |
[INFO] [stdout] help: the following other types implement trait `TransportError`
[INFO] [stdout]    --> src/transport.rs:35:1
[INFO] [stdout]     |
[INFO] [stdout]  35 | impl TransportError for ErrorPlaceHolder {}
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `mqtt_async_embedded::transport::ErrorPlaceHolder`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/error.rs:15:1
[INFO] [stdout]     |
[INFO] [stdout]  15 | impl transport::TransportError for ErrorPlaceHolder {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `mqtt_async_embedded::error::ErrorPlaceHolder`
[INFO] [stdout] note: required by a bound in `MqttClient::<'a, T, MAX_TOPICS, BUF_SIZE>::poll`
[INFO] [stdout]    --> src/client.rs:142:19
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub async fn poll<'p>(&'p mut self) -> Result<Option<MqttEvent<'p>>, MqttError<T::Error>>
[INFO] [stdout]     |                  ---- required by a bound in this associated function
[INFO] [stdout] 141 |     where
[INFO] [stdout] 142 |         T::Error: transport::TransportError,
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `MqttClient::<'a, T, MAX_TOPICS, BUF_SIZE>::poll`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 24)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.19s; merged doctests compilation took 0.10s
[INFO] running `Command { std: "docker" "inspect" "915931da7f4fdf8f06139a1051ca6bd4e5a9891f89a080f14f49bb6156edf51d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "915931da7f4fdf8f06139a1051ca6bd4e5a9891f89a080f14f49bb6156edf51d", kill_on_drop: false }`
[INFO] [stdout] 915931da7f4fdf8f06139a1051ca6bd4e5a9891f89a080f14f49bb6156edf51d
