[INFO] fetching crate drogue-es-wifi 0.1.2...
[INFO] building drogue-es-wifi-0.1.2 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate drogue-es-wifi 0.1.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate drogue-es-wifi 0.1.2 on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate drogue-es-wifi 0.1.2
[INFO] finished tweaking crates.io crate drogue-es-wifi 0.1.2
[INFO] tweaked toml for crates.io crate drogue-es-wifi 0.1.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f993029a34893d6606edff3f396bb9934a5a065bd512e9aabe16ba4ad5c7abed
[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" "f993029a34893d6606edff3f396bb9934a5a065bd512e9aabe16ba4ad5c7abed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f993029a34893d6606edff3f396bb9934a5a065bd512e9aabe16ba4ad5c7abed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f993029a34893d6606edff3f396bb9934a5a065bd512e9aabe16ba4ad5c7abed", kill_on_drop: false }`
[INFO] [stdout] f993029a34893d6606edff3f396bb9934a5a065bd512e9aabe16ba4ad5c7abed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 395d3417f8e14727f06196c4171eddbcc4b85de12516562f105438503beada3d
[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" "395d3417f8e14727f06196c4171eddbcc4b85de12516562f105438503beada3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling cortex-m v0.7.2
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling no-std-net v0.4.0
[INFO] [stderr]    Compiling volatile-register v0.2.0
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.5
[INFO] [stderr]    Compiling hash32 v0.1.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling generic-array v0.13.3
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling as-slice v0.1.5
[INFO] [stderr]    Compiling num v0.3.1
[INFO] [stderr]    Compiling embedded-time v0.10.1
[INFO] [stderr]    Compiling aligned v0.3.4
[INFO] [stderr]    Compiling drogue-nom-utils v0.1.0
[INFO] [stderr]    Compiling drogue-network v0.2.0
[INFO] [stderr]    Compiling drogue-embedded-timer v0.2.1
[INFO] [stderr]    Compiling drogue-es-wifi v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Consumer`, `Producer`, `String`, `Vec`, `consts::*`
[INFO] [stdout]  --> src/adapter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     String,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 3 |     Vec,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 4 |     spsc::{Producer, Consumer},
[INFO] [stdout]   |            ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 5 |     consts::*,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `State`
[INFO] [stdout]  --> src/adapter.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::socket::{Socket, State};
[INFO] [stdout]   |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `drogue_network::addr::HostSocketAddr`
[INFO] [stdout]  --> src/adapter.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use drogue_network::addr::HostSocketAddr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `drogue_embedded_timer::Delay`
[INFO] [stdout]   --> src/adapter.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use drogue_embedded_timer::Delay;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::parser::join`
[INFO] [stdout]   --> src/adapter.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use crate::parser::join;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Consumer`, `Producer`
[INFO] [stdout]  --> src/arbiter.rs:5:42
[INFO] [stdout]   |
[INFO] [stdout] 5 | use heapless::{consts::*, String, spsc::{Consumer, Producer}, ArrayLength};
[INFO] [stdout]   |                                          ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nom::InputIter`
[INFO] [stdout]   --> src/arbiter.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use nom::InputIter;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AdapterError`
[INFO] [stdout]   --> src/arbiter.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::adapter::{AdapterError, JoinError, JoinInfo, ConnectError, WriteError, ReadError, CloseError};
[INFO] [stdout]    |                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nom::error::ErrorKind`
[INFO] [stdout]   --> src/arbiter.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use nom::error::ErrorKind;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `named_args`, `take`
[INFO] [stdout]  --> src/parser.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     named_args,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 |     take,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `heapless::String`
[INFO] [stdout]   --> src/parser.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use heapless::String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::adapter::JoinError`
[INFO] [stdout]   --> src/parser.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use crate::adapter::JoinError;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::cell::RefCell`
[INFO] [stdout]  --> src/network.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use core::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AdapterError`, `ReadError`
[INFO] [stdout]  --> src/network.rs:6:31
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::adapter::{Adapter, AdapterError, ReadError};
[INFO] [stdout]   |                               ^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nb::Error`
[INFO] [stdout]  --> src/network.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use nb::Error;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `drogue_embedded_timer::Delay`
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use drogue_embedded_timer::Delay;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `embedded_hal::blocking::spi::Transfer`
[INFO] [stdout]   --> src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use embedded_hal::blocking::spi::Transfer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `InputPin`, `OutputPin`
[INFO] [stdout]   --> src/lib.rs:13:33
[INFO] [stdout]    |
[INFO] [stdout] 13 | use embedded_hal::digital::v2::{OutputPin, InputPin};
[INFO] [stdout]    |                                 ^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::arbiter::Arbiter`
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use crate::arbiter::Arbiter;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::adapter::Adapter`
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use crate::adapter::Adapter;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `consts::*`, `spsc::Queue`
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     consts::*,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 19 |     spsc::Queue
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/adapter.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |             _ => {
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ssid`
[INFO] [stdout]   --> src/parser.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         ssid: take_until!(",") >>
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_ssid`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ip`
[INFO] [stdout]   --> src/parser.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         ip: take_until!(",") >>
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_ip`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/adapter.rs:128:13
[INFO] [stdout]     |
[INFO] [stdout] 128 |         let mut arbiter = Arbiter::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: variable does not need to be mutable
[INFO] [stdout]   --> src/network.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |         let mut socket = &mut self.sockets.borrow_mut()[tcp_socket.0];
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `clock`
[INFO] [stdout]   --> src/arbiter.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     clock: &'clock Clock,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Connected`
[INFO] [stdout]  --> src/socket.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Connected,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_blocking`
[INFO] [stdout]   --> src/socket.rs:37:19
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub(crate) fn is_blocking(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_timeout`
[INFO] [stdout]   --> src/socket.rs:45:19
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub(crate) fn is_timeout(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 117 |             self.spi.transfer(&mut chunk);
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |             self.send_string(&command!(U8, "MT=1"), &mut response);
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:139:31
[INFO] [stdout]     |
[INFO] [stdout] 139 |             self.send_string(&command!(U8, "MT=1"), &mut response);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 139 |             self.send_string(&command!(U8, "MT=1"), &mut response);
[INFO] [stdout]     |                               -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |             self.initialize();
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         self.wakeup.set_low();
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         self.reset.set_low();
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |         self.reset.set_high();
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:250:22
[INFO] [stdout]     |
[INFO] [stdout] 250 |                     &command!(U36, "CB=2"),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 250 |                     &command!(U36, "CB=2"),
[INFO] [stdout]     |                      --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:254:22
[INFO] [stdout]     |
[INFO] [stdout] 254 |                     &command!(U36, "C1={}", ssid),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 254 |                     &command!(U36, "C1={}", ssid),
[INFO] [stdout]     |                      ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:258:22
[INFO] [stdout]     |
[INFO] [stdout] 258 |                     &command!(U72, "C2={}", password),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 258 |                     &command!(U72, "C2={}", password),
[INFO] [stdout]     |                      -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:262:22
[INFO] [stdout]     |
[INFO] [stdout] 262 |                     &command!(U8, "C3=4"),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 262 |                     &command!(U8, "C3=4"),
[INFO] [stdout]     |                      -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:266:50
[INFO] [stdout]     |
[INFO] [stdout] 266 |                 let response = self.send_string(&command!(U4, "C0"), &mut response).map_err(|_| JoinError::Unknown)?;
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 266 |                 let response = self.send_string(&command!(U4, "C0"), &mut response).map_err(|_| JoinError::Unknown)?;
[INFO] [stdout]     |                                                  ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:303:14
[INFO] [stdout]     |
[INFO] [stdout] 303 |             &command!( U8, "P0={}", socket_num),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |             &command!( U8, "P0={}", socket_num),
[INFO] [stdout]     |              ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:309:22
[INFO] [stdout]     |
[INFO] [stdout] 309 |                     &command!(U8,"P1=0"),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 309 |                     &command!(U8,"P1=0"),
[INFO] [stdout]     |                      ------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:314:22
[INFO] [stdout]     |
[INFO] [stdout] 314 |                     &command!(U8,"P1=1"),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 314 |                     &command!(U8,"P1=1"),
[INFO] [stdout]     |                      ------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:320:14
[INFO] [stdout]     |
[INFO] [stdout] 320 |             &command!(U32, "P3={}", remote.addr().ip()),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 320 |             &command!(U32, "P3={}", remote.addr().ip()),
[INFO] [stdout]     |              ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:324:14
[INFO] [stdout]     |
[INFO] [stdout] 324 |             &command!(U32, "P4={}", remote.port()),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 324 |             &command!(U32, "P4={}", remote.port()),
[INFO] [stdout]     |              ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:327:42
[INFO] [stdout]     |
[INFO] [stdout] 327 |         let response = self.send_string(&command!(U8, "P6=1"), &mut response).map_err(|e| ConnectError::SpiError(e))?;
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 327 |         let response = self.send_string(&command!(U8, "P6=1"), &mut response).map_err(|e| ConnectError::SpiError(e))?;
[INFO] [stdout]     |                                          -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:341:14
[INFO] [stdout]     |
[INFO] [stdout] 341 |             &command!( U8, "P0={}", socket_num),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 341 |             &command!( U8, "P0={}", socket_num),
[INFO] [stdout]     |              ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:344:42
[INFO] [stdout]     |
[INFO] [stdout] 344 |         let response = self.send_string(&command!(U8, "P6=0"), &mut response).map_err(|e| CloseError::SpiError(e))?;
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 344 |         let response = self.send_string(&command!(U8, "P6=0"), &mut response).map_err(|e| CloseError::SpiError(e))?;
[INFO] [stdout]     |                                          -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:369:23
[INFO] [stdout]     |
[INFO] [stdout] 369 |         let command = command!(U8, "P0={}", socket_num);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 369 |         let command = command!(U8, "P0={}", socket_num);
[INFO] [stdout]     |                       --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:370:9
[INFO] [stdout]     |
[INFO] [stdout] 370 |         self.send(command.as_bytes(), &mut response);
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:373:14
[INFO] [stdout]     |
[INFO] [stdout] 373 |             &command!(U8, "P0={}", socket_num),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 373 |             &command!(U8, "P0={}", socket_num),
[INFO] [stdout]     |              --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:378:14
[INFO] [stdout]     |
[INFO] [stdout] 378 |             &command!(U16, "S1={}", len),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 378 |             &command!(U16, "S1={}", len),
[INFO] [stdout]     |              --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:401:17
[INFO] [stdout]     |
[INFO] [stdout] 401 |                 self.spi.transfer(&mut xfer);
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:414:17
[INFO] [stdout]     |
[INFO] [stdout] 414 |                 self.spi.transfer(&mut xfer);
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:457:14
[INFO] [stdout]     |
[INFO] [stdout] 457 |             &command!( U8, "P0={}", socket_num),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 457 |             &command!( U8, "P0={}", socket_num),
[INFO] [stdout]     |              ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:467:14
[INFO] [stdout]     |
[INFO] [stdout] 467 |             &command!( U16, "R1={}", len),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 467 |             &command!( U16, "R1={}", len),
[INFO] [stdout]     |              ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:472:14
[INFO] [stdout]     |
[INFO] [stdout] 472 |             &command!(U8, "R2=15"),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 472 |             &command!(U8, "R2=15"),
[INFO] [stdout]     |              --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:477:14
[INFO] [stdout]     |
[INFO] [stdout] 477 |             &command!(U8, "R3=1"),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 477 |             &command!(U8, "R3=1"),
[INFO] [stdout]     |              -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:488:13
[INFO] [stdout]     |
[INFO] [stdout] 488 |             self.spi.transfer(&mut xfer);
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:491:13
[INFO] [stdout]     |
[INFO] [stdout] 491 |             self.spi.transfer(&mut xfer);
[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 `Result` that must be used
[INFO] [stdout]   --> src/chip_select.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         pin.set_high();
[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 `Result` that must be used
[INFO] [stdout]   --> src/chip_select.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         self.pin.set_low();
[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 `Result` that must be used
[INFO] [stdout]   --> src/chip_select.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         self.pin.set_high();
[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: 86 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.99s
[INFO] running `Command { std: "docker" "inspect" "395d3417f8e14727f06196c4171eddbcc4b85de12516562f105438503beada3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "395d3417f8e14727f06196c4171eddbcc4b85de12516562f105438503beada3d", kill_on_drop: false }`
[INFO] [stdout] 395d3417f8e14727f06196c4171eddbcc4b85de12516562f105438503beada3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03e3ad16ed34da35f47981346d629b16e16b697fdfd3fd43fe57a911c02bdcf6
[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" "03e3ad16ed34da35f47981346d629b16e16b697fdfd3fd43fe57a911c02bdcf6", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `Consumer`, `Producer`, `String`, `Vec`, `consts::*`
[INFO] [stdout]  --> src/adapter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     String,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 3 |     Vec,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 4 |     spsc::{Producer, Consumer},
[INFO] [stdout]   |            ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 5 |     consts::*,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `State`
[INFO] [stdout]  --> src/adapter.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::socket::{Socket, State};
[INFO] [stdout]   |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `drogue_network::addr::HostSocketAddr`
[INFO] [stdout]  --> src/adapter.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use drogue_network::addr::HostSocketAddr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `drogue_embedded_timer::Delay`
[INFO] [stdout]   --> src/adapter.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use drogue_embedded_timer::Delay;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::parser::join`
[INFO] [stdout]   --> src/adapter.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use crate::parser::join;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Consumer`, `Producer`
[INFO] [stdout]  --> src/arbiter.rs:5:42
[INFO] [stdout]   |
[INFO] [stdout] 5 | use heapless::{consts::*, String, spsc::{Consumer, Producer}, ArrayLength};
[INFO] [stdout]   |                                          ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nom::InputIter`
[INFO] [stdout]   --> src/arbiter.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use nom::InputIter;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AdapterError`
[INFO] [stdout]   --> src/arbiter.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::adapter::{AdapterError, JoinError, JoinInfo, ConnectError, WriteError, ReadError, CloseError};
[INFO] [stdout]    |                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nom::error::ErrorKind`
[INFO] [stdout]   --> src/arbiter.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use nom::error::ErrorKind;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `named_args`, `take`
[INFO] [stdout]  --> src/parser.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     named_args,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 |     take,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `heapless::String`
[INFO] [stdout]   --> src/parser.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use heapless::String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::adapter::JoinError`
[INFO] [stdout]   --> src/parser.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use crate::adapter::JoinError;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::cell::RefCell`
[INFO] [stdout]  --> src/network.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use core::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AdapterError`, `ReadError`
[INFO] [stdout]  --> src/network.rs:6:31
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::adapter::{Adapter, AdapterError, ReadError};
[INFO] [stdout]   |                               ^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nb::Error`
[INFO] [stdout]  --> src/network.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use nb::Error;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `drogue_embedded_timer::Delay`
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use drogue_embedded_timer::Delay;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `embedded_hal::blocking::spi::Transfer`
[INFO] [stdout]   --> src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use embedded_hal::blocking::spi::Transfer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `InputPin`, `OutputPin`
[INFO] [stdout]   --> src/lib.rs:13:33
[INFO] [stdout]    |
[INFO] [stdout] 13 | use embedded_hal::digital::v2::{OutputPin, InputPin};
[INFO] [stdout]    |                                 ^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::arbiter::Arbiter`
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use crate::arbiter::Arbiter;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::adapter::Adapter`
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use crate::adapter::Adapter;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `consts::*`, `spsc::Queue`
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     consts::*,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 19 |     spsc::Queue
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/adapter.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |             _ => {
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ssid`
[INFO] [stdout]   --> src/parser.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         ssid: take_until!(",") >>
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_ssid`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ip`
[INFO] [stdout]   --> src/parser.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         ip: take_until!(",") >>
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_ip`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/adapter.rs:128:13
[INFO] [stdout]     |
[INFO] [stdout] 128 |         let mut arbiter = Arbiter::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: variable does not need to be mutable
[INFO] [stdout]   --> src/network.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |         let mut socket = &mut self.sockets.borrow_mut()[tcp_socket.0];
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `clock`
[INFO] [stdout]   --> src/arbiter.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     clock: &'clock Clock,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Connected`
[INFO] [stdout]  --> src/socket.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Connected,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_blocking`
[INFO] [stdout]   --> src/socket.rs:37:19
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub(crate) fn is_blocking(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_timeout`
[INFO] [stdout]   --> src/socket.rs:45:19
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub(crate) fn is_timeout(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 117 |             self.spi.transfer(&mut chunk);
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |             self.send_string(&command!(U8, "MT=1"), &mut response);
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:139:31
[INFO] [stdout]     |
[INFO] [stdout] 139 |             self.send_string(&command!(U8, "MT=1"), &mut response);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 139 |             self.send_string(&command!(U8, "MT=1"), &mut response);
[INFO] [stdout]     |                               -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |             self.initialize();
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         self.wakeup.set_low();
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         self.reset.set_low();
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |         self.reset.set_high();
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:250:22
[INFO] [stdout]     |
[INFO] [stdout] 250 |                     &command!(U36, "CB=2"),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 250 |                     &command!(U36, "CB=2"),
[INFO] [stdout]     |                      --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:254:22
[INFO] [stdout]     |
[INFO] [stdout] 254 |                     &command!(U36, "C1={}", ssid),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 254 |                     &command!(U36, "C1={}", ssid),
[INFO] [stdout]     |                      ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:258:22
[INFO] [stdout]     |
[INFO] [stdout] 258 |                     &command!(U72, "C2={}", password),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 258 |                     &command!(U72, "C2={}", password),
[INFO] [stdout]     |                      -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:262:22
[INFO] [stdout]     |
[INFO] [stdout] 262 |                     &command!(U8, "C3=4"),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 262 |                     &command!(U8, "C3=4"),
[INFO] [stdout]     |                      -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:266:50
[INFO] [stdout]     |
[INFO] [stdout] 266 |                 let response = self.send_string(&command!(U4, "C0"), &mut response).map_err(|_| JoinError::Unknown)?;
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 266 |                 let response = self.send_string(&command!(U4, "C0"), &mut response).map_err(|_| JoinError::Unknown)?;
[INFO] [stdout]     |                                                  ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:303:14
[INFO] [stdout]     |
[INFO] [stdout] 303 |             &command!( U8, "P0={}", socket_num),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |             &command!( U8, "P0={}", socket_num),
[INFO] [stdout]     |              ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:309:22
[INFO] [stdout]     |
[INFO] [stdout] 309 |                     &command!(U8,"P1=0"),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 309 |                     &command!(U8,"P1=0"),
[INFO] [stdout]     |                      ------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:314:22
[INFO] [stdout]     |
[INFO] [stdout] 314 |                     &command!(U8,"P1=1"),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 314 |                     &command!(U8,"P1=1"),
[INFO] [stdout]     |                      ------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:320:14
[INFO] [stdout]     |
[INFO] [stdout] 320 |             &command!(U32, "P3={}", remote.addr().ip()),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 320 |             &command!(U32, "P3={}", remote.addr().ip()),
[INFO] [stdout]     |              ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:324:14
[INFO] [stdout]     |
[INFO] [stdout] 324 |             &command!(U32, "P4={}", remote.port()),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 324 |             &command!(U32, "P4={}", remote.port()),
[INFO] [stdout]     |              ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:327:42
[INFO] [stdout]     |
[INFO] [stdout] 327 |         let response = self.send_string(&command!(U8, "P6=1"), &mut response).map_err(|e| ConnectError::SpiError(e))?;
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 327 |         let response = self.send_string(&command!(U8, "P6=1"), &mut response).map_err(|e| ConnectError::SpiError(e))?;
[INFO] [stdout]     |                                          -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:341:14
[INFO] [stdout]     |
[INFO] [stdout] 341 |             &command!( U8, "P0={}", socket_num),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 341 |             &command!( U8, "P0={}", socket_num),
[INFO] [stdout]     |              ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:344:42
[INFO] [stdout]     |
[INFO] [stdout] 344 |         let response = self.send_string(&command!(U8, "P6=0"), &mut response).map_err(|e| CloseError::SpiError(e))?;
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 344 |         let response = self.send_string(&command!(U8, "P6=0"), &mut response).map_err(|e| CloseError::SpiError(e))?;
[INFO] [stdout]     |                                          -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:369:23
[INFO] [stdout]     |
[INFO] [stdout] 369 |         let command = command!(U8, "P0={}", socket_num);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 369 |         let command = command!(U8, "P0={}", socket_num);
[INFO] [stdout]     |                       --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:370:9
[INFO] [stdout]     |
[INFO] [stdout] 370 |         self.send(command.as_bytes(), &mut response);
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:373:14
[INFO] [stdout]     |
[INFO] [stdout] 373 |             &command!(U8, "P0={}", socket_num),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 373 |             &command!(U8, "P0={}", socket_num),
[INFO] [stdout]     |              --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:378:14
[INFO] [stdout]     |
[INFO] [stdout] 378 |             &command!(U16, "S1={}", len),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling drogue-es-wifi v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 378 |             &command!(U16, "S1={}", len),
[INFO] [stdout]     |              --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:401:17
[INFO] [stdout]     |
[INFO] [stdout] 401 |                 self.spi.transfer(&mut xfer);
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:414:17
[INFO] [stdout]     |
[INFO] [stdout] 414 |                 self.spi.transfer(&mut xfer);
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:457:14
[INFO] [stdout]     |
[INFO] [stdout] 457 |             &command!( U8, "P0={}", socket_num),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 457 |             &command!( U8, "P0={}", socket_num),
[INFO] [stdout]     |              ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:467:14
[INFO] [stdout]     |
[INFO] [stdout] 467 |             &command!( U16, "R1={}", len),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 467 |             &command!( U16, "R1={}", len),
[INFO] [stdout]     |              ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:472:14
[INFO] [stdout]     |
[INFO] [stdout] 472 |             &command!(U8, "R2=15"),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 472 |             &command!(U8, "R2=15"),
[INFO] [stdout]     |              --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:477:14
[INFO] [stdout]     |
[INFO] [stdout] 477 |             &command!(U8, "R3=1"),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 477 |             &command!(U8, "R3=1"),
[INFO] [stdout]     |              -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:488:13
[INFO] [stdout]     |
[INFO] [stdout] 488 |             self.spi.transfer(&mut xfer);
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:491:13
[INFO] [stdout]     |
[INFO] [stdout] 491 |             self.spi.transfer(&mut xfer);
[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 `Result` that must be used
[INFO] [stdout]   --> src/chip_select.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         pin.set_high();
[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 `Result` that must be used
[INFO] [stdout]   --> src/chip_select.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         self.pin.set_low();
[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 `Result` that must be used
[INFO] [stdout]   --> src/chip_select.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         self.pin.set_high();
[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: 86 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Consumer`, `Producer`, `String`, `Vec`, `consts::*`
[INFO] [stdout]  --> src/adapter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     String,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 3 |     Vec,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 4 |     spsc::{Producer, Consumer},
[INFO] [stdout]   |            ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 5 |     consts::*,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `State`
[INFO] [stdout]  --> src/adapter.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::socket::{Socket, State};
[INFO] [stdout]   |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `drogue_network::addr::HostSocketAddr`
[INFO] [stdout]  --> src/adapter.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use drogue_network::addr::HostSocketAddr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `drogue_embedded_timer::Delay`
[INFO] [stdout]   --> src/adapter.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use drogue_embedded_timer::Delay;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::parser::join`
[INFO] [stdout]   --> src/adapter.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use crate::parser::join;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Consumer`, `Producer`
[INFO] [stdout]  --> src/arbiter.rs:5:42
[INFO] [stdout]   |
[INFO] [stdout] 5 | use heapless::{consts::*, String, spsc::{Consumer, Producer}, ArrayLength};
[INFO] [stdout]   |                                          ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nom::InputIter`
[INFO] [stdout]   --> src/arbiter.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use nom::InputIter;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AdapterError`
[INFO] [stdout]   --> src/arbiter.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::adapter::{AdapterError, JoinError, JoinInfo, ConnectError, WriteError, ReadError, CloseError};
[INFO] [stdout]    |                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nom::error::ErrorKind`
[INFO] [stdout]   --> src/arbiter.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use nom::error::ErrorKind;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `named_args`, `take`
[INFO] [stdout]  --> src/parser.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     named_args,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 |     take,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `heapless::String`
[INFO] [stdout]   --> src/parser.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use heapless::String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::adapter::JoinError`
[INFO] [stdout]   --> src/parser.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use crate::adapter::JoinError;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::cell::RefCell`
[INFO] [stdout]  --> src/network.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use core::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AdapterError`, `ReadError`
[INFO] [stdout]  --> src/network.rs:6:31
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::adapter::{Adapter, AdapterError, ReadError};
[INFO] [stdout]   |                               ^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nb::Error`
[INFO] [stdout]  --> src/network.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use nb::Error;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `drogue_embedded_timer::Delay`
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use drogue_embedded_timer::Delay;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `embedded_hal::blocking::spi::Transfer`
[INFO] [stdout]   --> src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use embedded_hal::blocking::spi::Transfer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `InputPin`, `OutputPin`
[INFO] [stdout]   --> src/lib.rs:13:33
[INFO] [stdout]    |
[INFO] [stdout] 13 | use embedded_hal::digital::v2::{OutputPin, InputPin};
[INFO] [stdout]    |                                 ^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::arbiter::Arbiter`
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use crate::arbiter::Arbiter;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::adapter::Adapter`
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use crate::adapter::Adapter;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `consts::*`, `spsc::Queue`
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     consts::*,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 19 |     spsc::Queue
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/adapter.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |             _ => {
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ssid`
[INFO] [stdout]   --> src/parser.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         ssid: take_until!(",") >>
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_ssid`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ip`
[INFO] [stdout]   --> src/parser.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         ip: take_until!(",") >>
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_ip`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/adapter.rs:128:13
[INFO] [stdout]     |
[INFO] [stdout] 128 |         let mut arbiter = Arbiter::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: variable does not need to be mutable
[INFO] [stdout]   --> src/network.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |         let mut socket = &mut self.sockets.borrow_mut()[tcp_socket.0];
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `clock`
[INFO] [stdout]   --> src/arbiter.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     clock: &'clock Clock,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Connected`
[INFO] [stdout]  --> src/socket.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Connected,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_blocking`
[INFO] [stdout]   --> src/socket.rs:37:19
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub(crate) fn is_blocking(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_timeout`
[INFO] [stdout]   --> src/socket.rs:45:19
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub(crate) fn is_timeout(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 117 |             self.spi.transfer(&mut chunk);
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |             self.send_string(&command!(U8, "MT=1"), &mut response);
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:139:31
[INFO] [stdout]     |
[INFO] [stdout] 139 |             self.send_string(&command!(U8, "MT=1"), &mut response);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 139 |             self.send_string(&command!(U8, "MT=1"), &mut response);
[INFO] [stdout]     |                               -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |             self.initialize();
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         self.wakeup.set_low();
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         self.reset.set_low();
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |         self.reset.set_high();
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:250:22
[INFO] [stdout]     |
[INFO] [stdout] 250 |                     &command!(U36, "CB=2"),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 250 |                     &command!(U36, "CB=2"),
[INFO] [stdout]     |                      --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:254:22
[INFO] [stdout]     |
[INFO] [stdout] 254 |                     &command!(U36, "C1={}", ssid),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 254 |                     &command!(U36, "C1={}", ssid),
[INFO] [stdout]     |                      ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:258:22
[INFO] [stdout]     |
[INFO] [stdout] 258 |                     &command!(U72, "C2={}", password),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 258 |                     &command!(U72, "C2={}", password),
[INFO] [stdout]     |                      -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:262:22
[INFO] [stdout]     |
[INFO] [stdout] 262 |                     &command!(U8, "C3=4"),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 262 |                     &command!(U8, "C3=4"),
[INFO] [stdout]     |                      -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:266:50
[INFO] [stdout]     |
[INFO] [stdout] 266 |                 let response = self.send_string(&command!(U4, "C0"), &mut response).map_err(|_| JoinError::Unknown)?;
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 266 |                 let response = self.send_string(&command!(U4, "C0"), &mut response).map_err(|_| JoinError::Unknown)?;
[INFO] [stdout]     |                                                  ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:303:14
[INFO] [stdout]     |
[INFO] [stdout] 303 |             &command!( U8, "P0={}", socket_num),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |             &command!( U8, "P0={}", socket_num),
[INFO] [stdout]     |              ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:309:22
[INFO] [stdout]     |
[INFO] [stdout] 309 |                     &command!(U8,"P1=0"),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 309 |                     &command!(U8,"P1=0"),
[INFO] [stdout]     |                      ------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:314:22
[INFO] [stdout]     |
[INFO] [stdout] 314 |                     &command!(U8,"P1=1"),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 314 |                     &command!(U8,"P1=1"),
[INFO] [stdout]     |                      ------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:320:14
[INFO] [stdout]     |
[INFO] [stdout] 320 |             &command!(U32, "P3={}", remote.addr().ip()),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 320 |             &command!(U32, "P3={}", remote.addr().ip()),
[INFO] [stdout]     |              ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:324:14
[INFO] [stdout]     |
[INFO] [stdout] 324 |             &command!(U32, "P4={}", remote.port()),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 324 |             &command!(U32, "P4={}", remote.port()),
[INFO] [stdout]     |              ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:327:42
[INFO] [stdout]     |
[INFO] [stdout] 327 |         let response = self.send_string(&command!(U8, "P6=1"), &mut response).map_err(|e| ConnectError::SpiError(e))?;
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 327 |         let response = self.send_string(&command!(U8, "P6=1"), &mut response).map_err(|e| ConnectError::SpiError(e))?;
[INFO] [stdout]     |                                          -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:341:14
[INFO] [stdout]     |
[INFO] [stdout] 341 |             &command!( U8, "P0={}", socket_num),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 341 |             &command!( U8, "P0={}", socket_num),
[INFO] [stdout]     |              ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:344:42
[INFO] [stdout]     |
[INFO] [stdout] 344 |         let response = self.send_string(&command!(U8, "P6=0"), &mut response).map_err(|e| CloseError::SpiError(e))?;
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 344 |         let response = self.send_string(&command!(U8, "P6=0"), &mut response).map_err(|e| CloseError::SpiError(e))?;
[INFO] [stdout]     |                                          -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:369:23
[INFO] [stdout]     |
[INFO] [stdout] 369 |         let command = command!(U8, "P0={}", socket_num);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 369 |         let command = command!(U8, "P0={}", socket_num);
[INFO] [stdout]     |                       --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:370:9
[INFO] [stdout]     |
[INFO] [stdout] 370 |         self.send(command.as_bytes(), &mut response);
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:373:14
[INFO] [stdout]     |
[INFO] [stdout] 373 |             &command!(U8, "P0={}", socket_num),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 373 |             &command!(U8, "P0={}", socket_num),
[INFO] [stdout]     |              --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:378:14
[INFO] [stdout]     |
[INFO] [stdout] 378 |             &command!(U16, "S1={}", len),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 378 |             &command!(U16, "S1={}", len),
[INFO] [stdout]     |              --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:401:17
[INFO] [stdout]     |
[INFO] [stdout] 401 |                 self.spi.transfer(&mut xfer);
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:414:17
[INFO] [stdout]     |
[INFO] [stdout] 414 |                 self.spi.transfer(&mut xfer);
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:457:14
[INFO] [stdout]     |
[INFO] [stdout] 457 |             &command!( U8, "P0={}", socket_num),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 457 |             &command!( U8, "P0={}", socket_num),
[INFO] [stdout]     |              ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:467:14
[INFO] [stdout]     |
[INFO] [stdout] 467 |             &command!( U16, "R1={}", len),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 467 |             &command!( U16, "R1={}", len),
[INFO] [stdout]     |              ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:472:14
[INFO] [stdout]     |
[INFO] [stdout] 472 |             &command!(U8, "R2=15"),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 472 |             &command!(U8, "R2=15"),
[INFO] [stdout]     |              --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:477:14
[INFO] [stdout]     |
[INFO] [stdout] 477 |             &command!(U8, "R3=1"),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:24:9
[INFO] [stdout]     |
[INFO] [stdout] 24  |         c.push_str("\r");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 477 |             &command!(U8, "R3=1"),
[INFO] [stdout]     |              -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:488:13
[INFO] [stdout]     |
[INFO] [stdout] 488 |             self.spi.transfer(&mut xfer);
[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 `Result` that must be used
[INFO] [stdout]    --> src/arbiter.rs:491:13
[INFO] [stdout]     |
[INFO] [stdout] 491 |             self.spi.transfer(&mut xfer);
[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 `Result` that must be used
[INFO] [stdout]   --> src/chip_select.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         pin.set_high();
[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 `Result` that must be used
[INFO] [stdout]   --> src/chip_select.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         self.pin.set_low();
[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 `Result` that must be used
[INFO] [stdout]   --> src/chip_select.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         self.pin.set_high();
[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: 86 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "03e3ad16ed34da35f47981346d629b16e16b697fdfd3fd43fe57a911c02bdcf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03e3ad16ed34da35f47981346d629b16e16b697fdfd3fd43fe57a911c02bdcf6", kill_on_drop: false }`
[INFO] [stdout] 03e3ad16ed34da35f47981346d629b16e16b697fdfd3fd43fe57a911c02bdcf6
