[INFO] fetching crate libyee 0.0.2...
[INFO] checking libyee-0.0.2 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate libyee 0.0.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate libyee 0.0.2 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libyee 0.0.2
[INFO] finished tweaking crates.io crate libyee 0.0.2
[INFO] tweaked toml for crates.io crate libyee 0.0.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 25 packages to latest compatible versions
[INFO] [stderr]       Adding enum-iterator v0.7.0 (latest: v2.1.0)
[INFO] [stderr]       Adding enum-iterator-derive v0.7.0 (latest: v1.4.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68f1b641d73f4f7bf71f78a74f14faebabebc965bdf3fc3e93f0707293d73a99
[INFO] running `Command { std: "docker" "start" "-a" "68f1b641d73f4f7bf71f78a74f14faebabebc965bdf3fc3e93f0707293d73a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68f1b641d73f4f7bf71f78a74f14faebabebc965bdf3fc3e93f0707293d73a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68f1b641d73f4f7bf71f78a74f14faebabebc965bdf3fc3e93f0707293d73a99", kill_on_drop: false }`
[INFO] [stdout] 68f1b641d73f4f7bf71f78a74f14faebabebc965bdf3fc3e93f0707293d73a99
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7042ad767340ea9b4788fc19da30c0bdd14eec2900be59ac37580be248151b3
[INFO] running `Command { std: "docker" "start" "-a" "f7042ad767340ea9b4788fc19da30c0bdd14eec2900be59ac37580be248151b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling enum-iterator-derive v0.7.0
[INFO] [stderr]     Checking enum-iterator v0.7.0
[INFO] [stderr]     Checking serde v1.0.209
[INFO] [stderr]     Checking serde_json v1.0.127
[INFO] [stderr]     Checking libyee v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/search.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SocketAddrV4`
[INFO] [stdout]  --> src/search.rs:3:46
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::net::{IpAddr, Ipv4Addr, SocketAddr, SocketAddrV4, ToSocketAddrs, UdpSocket};
[INFO] [stdout]   |                                              ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Brightness` and `Ct`
[INFO] [stdout]   --> src/method_calls.rs:11:39
[INFO] [stdout]    |
[INFO] [stdout] 11 |         AdjustAction, AdjustableProp, Brightness, BulbConnection, CfAction, ColorFlow, Cron,
[INFO] [stdout]    |                                       ^^^^^^^^^^
[INFO] [stdout] 12 |         CronResponse, CronType, Ct, ErrorResponse, FlowTuple, FlowTupleMode, MethodCallError,
[INFO] [stdout]    |                                 ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `result`
[INFO] [stdout]    --> src/method_calls.rs:694:15
[INFO] [stdout]     |
[INFO] [stdout] 694 |     use std::{result, sync::Mutex, time::Duration};
[INFO] [stdout]     |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/search.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SocketAddrV4`
[INFO] [stdout]  --> src/search.rs:3:46
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::net::{IpAddr, Ipv4Addr, SocketAddr, SocketAddrV4, ToSocketAddrs, UdpSocket};
[INFO] [stdout]   |                                              ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Brightness` and `Ct`
[INFO] [stdout]   --> src/method_calls.rs:11:39
[INFO] [stdout]    |
[INFO] [stdout] 11 |         AdjustAction, AdjustableProp, Brightness, BulbConnection, CfAction, ColorFlow, Cron,
[INFO] [stdout]    |                                       ^^^^^^^^^^
[INFO] [stdout] 12 |         CronResponse, CronType, Ct, ErrorResponse, FlowTuple, FlowTupleMode, MethodCallError,
[INFO] [stdout]    |                                 ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `result` and `time::Duration`
[INFO] [stdout]    --> src/method_calls.rs:694:15
[INFO] [stdout]     |
[INFO] [stdout] 694 |     use std::{result, sync::Mutex, time::Duration};
[INFO] [stdout]     |               ^^^^^^               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ColorFlowTupleMode`, `ColorFlow`, `CtFlowTupleMode`, `FlowTupleMode`, `FlowTuple`, `HSV`, and `rgb::RGB`
[INFO] [stdout]    --> src/method_calls.rs:701:29
[INFO] [stdout]     |
[INFO] [stdout] 701 |             BulbConnection, ColorFlow, ColorFlowTupleMode, CtFlowTupleMode, FlowTuple,
[INFO] [stdout]     |                             ^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 702 |             FlowTupleMode,
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] 703 |         },
[INFO] [stdout] 704 |         lightmode::{LightMode, HSV},
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 705 |         method::Method,
[INFO] [stdout] 706 |         rgb::RGB,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CronType`, `Cron`, `MusicMode`, `Scene`, `TEST_OK_VAL`, and `TransitionMode`
[INFO] [stdout]    --> src/method_calls.rs:710:9
[INFO] [stdout]     |
[INFO] [stdout] 710 |         Cron, CronType, MethodCallError, MockTcpConnection, MusicMode, Scene, StringVecResponse,
[INFO] [stdout]     |         ^^^^  ^^^^^^^^                                      ^^^^^^^^^  ^^^^^
[INFO] [stdout] 711 |         TransitionMode, TEST_OK_VAL,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]   --> src/search.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn set_read_timeout(&mut self, dur: Option<Duration>) -> io::Result<()> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 30 |         self.set_read_timeout(dur)
[INFO] [stdout]    |         -------------------------- recursive call site
[INFO] [stdout]    |
[INFO] [stdout]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]    = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/search.rs:99:41
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn send_to<A: ToSocketAddrs>(&self, buf: &[u8], addr: A) -> io::Result<usize> {
[INFO] [stdout]    |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]   --> src/search.rs:99:53
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn send_to<A: ToSocketAddrs>(&self, buf: &[u8], addr: A) -> io::Result<usize> {
[INFO] [stdout]    |                                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]   --> src/search.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn set_read_timeout(&mut self, dur: Option<Duration>) -> io::Result<()> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 30 |         self.set_read_timeout(dur)
[INFO] [stdout]    |         -------------------------- recursive call site
[INFO] [stdout]    |
[INFO] [stdout]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]    = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/search.rs:99:41
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn send_to<A: ToSocketAddrs>(&self, buf: &[u8], addr: A) -> io::Result<usize> {
[INFO] [stdout]    |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]   --> src/search.rs:99:53
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn send_to<A: ToSocketAddrs>(&self, buf: &[u8], addr: A) -> io::Result<usize> {
[INFO] [stdout]    |                                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cron_type`
[INFO] [stdout]    --> src/method_calls.rs:380:32
[INFO] [stdout]     |
[INFO] [stdout] 380 |     pub fn cron_get(&mut self, cron_type: &CronType) -> Result<CronResponse, MethodCallError> {
[INFO] [stdout]     |                                ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cron_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cron_type`
[INFO] [stdout]    --> src/method_calls.rs:384:32
[INFO] [stdout]     |
[INFO] [stdout] 384 |     pub fn cron_del(&mut self, cron_type: &CronType) -> Result<StringVecResponse, MethodCallError> {
[INFO] [stdout]     |                                ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cron_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cron_type`
[INFO] [stdout]    --> src/method_calls.rs:380:32
[INFO] [stdout]     |
[INFO] [stdout] 380 |     pub fn cron_get(&mut self, cron_type: &CronType) -> Result<CronResponse, MethodCallError> {
[INFO] [stdout]     |                                ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cron_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cron_type`
[INFO] [stdout]    --> src/method_calls.rs:384:32
[INFO] [stdout]     |
[INFO] [stdout] 384 |     pub fn cron_del(&mut self, cron_type: &CronType) -> Result<StringVecResponse, MethodCallError> {
[INFO] [stdout]     |                                ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cron_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockSendRecvable` is never constructed
[INFO] [stdout]   --> src/search.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 | struct MockSendRecvable<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `error` are never read
[INFO] [stdout]   --> src/connection.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct ErrorResponse {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 36 |     id: i16,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 37 |     error: BulbErrorResponse,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ErrorResponse` 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 `code` and `message` are never read
[INFO] [stdout]   --> src/connection.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct BulbErrorResponse {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] 42 |     code: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 43 |     message: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BulbErrorResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockTcpConnection` is never constructed
[INFO] [stdout]    --> src/method_calls.rs:634:8
[INFO] [stdout]     |
[INFO] [stdout] 634 | struct MockTcpConnection {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TEST_OK_VAL` is never used
[INFO] [stdout]    --> src/method_calls.rs:691:7
[INFO] [stdout]     |
[INFO] [stdout] 691 | const TEST_OK_VAL: &str = "{\"id\":1, \"result\":[\"ok\"]}";
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `one_rng` is never used
[INFO] [stdout]    --> src/method_calls.rs:714:8
[INFO] [stdout]     |
[INFO] [stdout] 714 |     fn one_rng() -> StepRng {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_bulb_with_method` is never used
[INFO] [stdout]    --> src/method_calls.rs:718:8
[INFO] [stdout]     |
[INFO] [stdout] 718 |     fn make_bulb_with_method(method: Method) -> Bulb {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `assert_ok_result` is never used
[INFO] [stdout]    --> src/method_calls.rs:732:8
[INFO] [stdout]     |
[INFO] [stdout] 732 |     fn assert_ok_result(result: Result<StringVecResponse, MethodCallError>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `conn_with_method` is never used
[INFO] [stdout]    --> src/method_calls.rs:740:8
[INFO] [stdout]     |
[INFO] [stdout] 740 |     fn conn_with_method(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]   --> src/bulb.rs:53:31
[INFO] [stdout]    |
[INFO] [stdout] 53 |             Some((key.unwrap().clone(), val))
[INFO] [stdout]    |                               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/search.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             socket.set_read_timeout(Some(*d));
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 54 |             let _ = socket.set_read_timeout(Some(*d));
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `error` are never read
[INFO] [stdout]   --> src/connection.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct ErrorResponse {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 36 |     id: i16,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 37 |     error: BulbErrorResponse,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ErrorResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `code` and `message` are never read
[INFO] [stdout]   --> src/connection.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct BulbErrorResponse {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] 42 |     code: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 43 |     message: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BulbErrorResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&mut &[u8]` instead of cloning the inner type
[INFO] [stdout]    --> src/method_calls.rs:667:20
[INFO] [stdout]     |
[INFO] [stdout] 667 |         let _ = buf.clone().read_to_string(&mut str);
[INFO] [stdout]     |                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]   --> src/bulb.rs:53:31
[INFO] [stdout]    |
[INFO] [stdout] 53 |             Some((key.unwrap().clone(), val))
[INFO] [stdout]    |                               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/search.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             socket.set_read_timeout(Some(*d));
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 54 |             let _ = socket.set_read_timeout(Some(*d));
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `recv_contents` should have an upper case name
[INFO] [stdout]    --> src/search.rs:149:11
[INFO] [stdout]     |
[INFO] [stdout] 149 |     const recv_contents: &str = concat!(
[INFO] [stdout]     |           ^^^^^^^^^^^^^ help: convert the identifier to upper case: `RECV_CONTENTS`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&mut &[u8]` instead of cloning the inner type
[INFO] [stdout]    --> src/method_calls.rs:667:20
[INFO] [stdout]     |
[INFO] [stdout] 667 |         let _ = buf.clone().read_to_string(&mut str);
[INFO] [stdout]     |                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.45s
[INFO] running `Command { std: "docker" "inspect" "f7042ad767340ea9b4788fc19da30c0bdd14eec2900be59ac37580be248151b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7042ad767340ea9b4788fc19da30c0bdd14eec2900be59ac37580be248151b3", kill_on_drop: false }`
[INFO] [stdout] f7042ad767340ea9b4788fc19da30c0bdd14eec2900be59ac37580be248151b3