[INFO] cloning repository https://github.com/RA-GAS-GmbH/ne4_konfig
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RA-GAS-GmbH/ne4_konfig" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRA-GAS-GmbH%2Fne4_konfig", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRA-GAS-GmbH%2Fne4_konfig'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9936fb1d244fa3a2af904b3a70f925277954ece5
[INFO] checking RA-GAS-GmbH/ne4_konfig against beta-2020-07-24 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRA-GAS-GmbH%2Fne4_konfig" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RA-GAS-GmbH/ne4_konfig on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RA-GAS-GmbH/ne4_konfig
[INFO] finished tweaking git repo https://github.com/RA-GAS-GmbH/ne4_konfig
[INFO] tweaked toml for git repo https://github.com/RA-GAS-GmbH/ne4_konfig written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/RA-GAS-GmbH/ne4_konfig already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a5520bcb8adcaf5c0457e1bc0d6fa61d281132de96ec56c62bf5fcafcb54c83
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3a5520bcb8adcaf5c0457e1bc0d6fa61d281132de96ec56c62bf5fcafcb54c83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a5520bcb8adcaf5c0457e1bc0d6fa61d281132de96ec56c62bf5fcafcb54c83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a5520bcb8adcaf5c0457e1bc0d6fa61d281132de96ec56c62bf5fcafcb54c83", kill_on_drop: false }`
[INFO] [stdout] 3a5520bcb8adcaf5c0457e1bc0d6fa61d281132de96ec56c62bf5fcafcb54c83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ec1ca2017b2ce12f4adcef4bbd9feb2ef704eb233e816e17c704b8ba3fb379dd
[INFO] running `Command { std: "docker" "start" "-a" "ec1ca2017b2ce12f4adcef4bbd9feb2ef704eb233e816e17c704b8ba3fb379dd", kill_on_drop: false }`
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[INFO] [stdout] warning: unused imports: `SharedContext`, `reconnect_shared_context`
[INFO] [stdout]  --> src/tokio_thread/mod.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     util::{reconnect_shared_context, NewContext, SharedContext},
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^              ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`, `cell::RefCell`, `rc::Rc`
[INFO] [stdout]   --> src/tokio_thread/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     cell::RefCell,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     rc::Rc,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 17 |     sync::{Arc, Mutex},
[INFO] [stdout]    |            ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]    --> src/tokio_thread/mod.rs:201:17
[INFO] [stdout]     |
[INFO] [stdout] 201 |                 'update: loop {
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]    --> src/tokio_thread/mod.rs:279:17
[INFO] [stdout]     |
[INFO] [stdout] 279 |                 'update: loop {
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SharedContext`, `reconnect_shared_context`
[INFO] [stdout]  --> src/tokio_thread/mod.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     util::{reconnect_shared_context, NewContext, SharedContext},
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^              ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`, `cell::RefCell`, `rc::Rc`
[INFO] [stdout]   --> src/tokio_thread/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     cell::RefCell,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     rc::Rc,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 17 |     sync::{Arc, Mutex},
[INFO] [stdout]    |            ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]    --> src/tokio_thread/mod.rs:201:17
[INFO] [stdout]     |
[INFO] [stdout] 201 |                 'update: loop {
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]    --> src/tokio_thread/mod.rs:279:17
[INFO] [stdout]     |
[INFO] [stdout] 279 |                 'update: loop {
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `values`
[INFO] [stdout]    --> src/gui/gtk3/mod.rs:710:32
[INFO] [stdout]     |
[INFO] [stdout] 710 | ...                   Ok(values) => {
[INFO] [stdout]     |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_values`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `notebook_sensor`
[INFO] [stdout]    --> src/gui/gtk3/mod.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |     let notebook_sensor: gtk::Notebook = build!(builder, "notebook_sensor");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_notebook_sensor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_value`
[INFO] [stdout]    --> src/gui/gtk3/rwreg_store.rs:488:13
[INFO] [stdout]     |
[INFO] [stdout] 488 |         let old_value = model.get_value(&iter, 2);
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cell`
[INFO] [stdout]    --> src/gui/gtk3/rwreg_store.rs:482:5
[INFO] [stdout]     |
[INFO] [stdout] 482 |     cell: &gtk::CellRendererText,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_cell`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `box_main`
[INFO] [stdout]    --> src/gui/gtk3/rwreg_store.rs:447:13
[INFO] [stdout]     |
[INFO] [stdout] 447 |         let box_main = gtk::Box::new(gtk::Orientation::Horizontal, 1);
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_box_main`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ui`
[INFO] [stdout]    --> src/gui/gtk3/rwreg_store.rs:454:36
[INFO] [stdout]     |
[INFO] [stdout] 454 |     pub fn update_treestore(&self, ui: &Ui, values: &[u16]) {
[INFO] [stdout]     |                                    ^^ help: if this is intentional, prefix it with an underscore: `_ui`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `values`
[INFO] [stdout]    --> src/gui/gtk3/mod.rs:710:32
[INFO] [stdout]     |
[INFO] [stdout] 710 | ...                   Ok(values) => {
[INFO] [stdout]     |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_values`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `notebook_sensor`
[INFO] [stdout]    --> src/gui/gtk3/mod.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |     let notebook_sensor: gtk::Notebook = build!(builder, "notebook_sensor");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_notebook_sensor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_value`
[INFO] [stdout]    --> src/gui/gtk3/rwreg_store.rs:488:13
[INFO] [stdout]     |
[INFO] [stdout] 488 |         let old_value = model.get_value(&iter, 2);
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cell`
[INFO] [stdout]    --> src/gui/gtk3/rwreg_store.rs:482:5
[INFO] [stdout]     |
[INFO] [stdout] 482 |     cell: &gtk::CellRendererText,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_cell`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `box_main`
[INFO] [stdout]    --> src/gui/gtk3/rwreg_store.rs:447:13
[INFO] [stdout]     |
[INFO] [stdout] 447 |         let box_main = gtk::Box::new(gtk::Orientation::Horizontal, 1);
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_box_main`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ui`
[INFO] [stdout]    --> src/gui/gtk3/rwreg_store.rs:454:36
[INFO] [stdout]     |
[INFO] [stdout] 454 |     pub fn update_treestore(&self, ui: &Ui, values: &[u16]) {
[INFO] [stdout]     |                                    ^^ help: if this is intentional, prefix it with an underscore: `_ui`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gui/gtk3/mod.rs:256:9
[INFO] [stdout]     |
[INFO] [stdout] 256 |     let mut check_button_mcs: gtk::CheckButton = build!(builder, "check_button_mcs");
[INFO] [stdout]     |         ----^^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gui/gtk3/mod.rs:256:9
[INFO] [stdout]     |
[INFO] [stdout] 256 |     let mut check_button_mcs: gtk::CheckButton = build!(builder, "check_button_mcs");
[INFO] [stdout]     |         ----^^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/tokio_thread/mod.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/tokio_thread/mod.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/tokio_thread/mod.rs:347:9
[INFO] [stdout]     |
[INFO] [stdout] 347 | /         self.read_input_registers(
[INFO] [stdout] 348 | |             port.clone(),
[INFO] [stdout] 349 | |             modbus_address,
[INFO] [stdout] 350 | |             ui_event_sender.clone(),
[INFO] [stdout] 351 | |             state.clone(),
[INFO] [stdout] 352 | |         )
[INFO] [stdout] 353 | |         .await;
[INFO] [stdout]     | |_______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/tokio_thread/mod.rs:355:9
[INFO] [stdout]     |
[INFO] [stdout] 355 | /         self.read_holding_registers(port, modbus_address, ui_event_sender, state)
[INFO] [stdout] 356 | |             .await;
[INFO] [stdout]     | |___________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/tokio_thread/mod.rs:347:9
[INFO] [stdout]     |
[INFO] [stdout] 347 | /         self.read_input_registers(
[INFO] [stdout] 348 | |             port.clone(),
[INFO] [stdout] 349 | |             modbus_address,
[INFO] [stdout] 350 | |             ui_event_sender.clone(),
[INFO] [stdout] 351 | |             state.clone(),
[INFO] [stdout] 352 | |         )
[INFO] [stdout] 353 | |         .await;
[INFO] [stdout]     | |_______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/tokio_thread/mod.rs:355:9
[INFO] [stdout]     |
[INFO] [stdout] 355 | /         self.read_holding_registers(port, modbus_address, ui_event_sender, state)
[INFO] [stdout] 356 | |             .await;
[INFO] [stdout]     | |___________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `timeout`
[INFO] [stdout]  --> examples/tokio-modbus-shared-ctx2.rs:4:23
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use tokio::time::{timeout, Duration};
[INFO] [stdout]   |                       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Context`, `NewContext`, `SharedContext`, `reconnect_shared_context`
[INFO] [stdout]  --> examples/tokio-modbus-shared-ctx2.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 |         util::{reconnect_shared_context, NewContext, SharedContext},
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 7 |         Context,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio_modbus::prelude::*`
[INFO] [stdout]  --> examples/tokio-modbus-shared-ctx2.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     use tokio_modbus::prelude::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`, `cell::RefCell`, `future::Future`, `io::Error`, `pin::Pin`, `rc::Rc`
[INFO] [stdout]   --> examples/tokio-modbus-shared-ctx2.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         cell::RefCell,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 13 |         future::Future,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 14 |         io::Error,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 15 |         pin::Pin,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 16 |         rc::Rc,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 17 |         sync::{Arc, Mutex},
[INFO] [stdout]    |                ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio_serial::*`
[INFO] [stdout]   --> examples/tokio-modbus-shared-ctx2.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use tokio_serial::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TokioRuntimeCommand`
[INFO] [stdout]    --> examples/tokio-modbus-shared-ctx2.rs:113:35
[INFO] [stdout]     |
[INFO] [stdout] 113 | use tokio_runtime::{TokioRuntime, TokioRuntimeCommand};
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rt`
[INFO] [stdout]    --> examples/tokio-modbus-shared-ctx2.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |     let mut rt = TokioRuntime::new();
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_rt`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx2`
[INFO] [stdout]   --> examples/tokio-modbus-shared-ctx2.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 38 |             let tx2 = tx.clone();
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_tx2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/tokio-modbus-shared-ctx2.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |     let mut rt = TokioRuntime::new();
[INFO] [stdout]     |         ----^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ReadRegisters`
[INFO] [stdout]   --> examples/tokio-modbus-shared-ctx2.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         ReadRegisters,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ReadRegisters1`
[INFO] [stdout]   --> examples/tokio-modbus-shared-ctx2.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         ReadRegisters1,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]   --> examples/tokio-modbus-shared-ctx2.rs:84:16
[INFO] [stdout]    |
[INFO] [stdout] 84 |         pub fn run(&mut self) {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `futures::sink::Send` that must be used
[INFO] [stdout]   --> examples/tokio-modbus-shared-ctx2.rs:86:17
[INFO] [stdout]    |
[INFO] [stdout] 86 |                 self.tx.send(TokioRuntimeCommand::ReadRegisters1);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cell`
[INFO] [stdout]    --> examples/treestore.rs:454:5
[INFO] [stdout]     |
[INFO] [stdout] 454 |     cell: &gtk::CellRendererText,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_cell`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `box_main`
[INFO] [stdout]    --> examples/treestore.rs:446:13
[INFO] [stdout]     |
[INFO] [stdout] 446 |         let box_main = gtk::Box::new(gtk::Orientation::Horizontal, 1);
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_box_main`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 55s
[INFO] running `Command { std: "docker" "inspect" "ec1ca2017b2ce12f4adcef4bbd9feb2ef704eb233e816e17c704b8ba3fb379dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec1ca2017b2ce12f4adcef4bbd9feb2ef704eb233e816e17c704b8ba3fb379dd", kill_on_drop: false }`
[INFO] [stdout] ec1ca2017b2ce12f4adcef4bbd9feb2ef704eb233e816e17c704b8ba3fb379dd
