[INFO] cloning repository https://github.com/jack-greenberg/lantenna
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jack-greenberg/lantenna" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjack-greenberg%2Flantenna", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjack-greenberg%2Flantenna'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ea74337b5aadcfe2203ce39955a4c1d0e06d8d7
[INFO] testing jack-greenberg/lantenna against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjack-greenberg%2Flantenna" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jack-greenberg/lantenna on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jack-greenberg/lantenna
[INFO] finished tweaking git repo https://github.com/jack-greenberg/lantenna
[INFO] tweaked toml for git repo https://github.com/jack-greenberg/lantenna written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/jack-greenberg/lantenna already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca9c5d58a5e152ac867ab7e7fa4ebb6187a146c68b177ed25b69ee9f53efa8c4
[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" "ca9c5d58a5e152ac867ab7e7fa4ebb6187a146c68b177ed25b69ee9f53efa8c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca9c5d58a5e152ac867ab7e7fa4ebb6187a146c68b177ed25b69ee9f53efa8c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca9c5d58a5e152ac867ab7e7fa4ebb6187a146c68b177ed25b69ee9f53efa8c4", kill_on_drop: false }`
[INFO] [stdout] ca9c5d58a5e152ac867ab7e7fa4ebb6187a146c68b177ed25b69ee9f53efa8c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] aa4888ea10bed038579a3885b0214a97801e957d5499e78f2d51740eea804b0a
[INFO] running `Command { std: "docker" "start" "-a" "aa4888ea10bed038579a3885b0214a97801e957d5499e78f2d51740eea804b0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.70
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v0.8.23
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling rust-ini v0.13.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling serde-hjson v0.9.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling config v0.11.0
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling lantenna v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `socket`
[INFO] [stdout]   --> src/lantenna.rs:54:15
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn transmit_0(socket: &UdpSocket, receiver: &str) -> Result<(), LantennaError> {
[INFO] [stdout]    |               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `receiver`
[INFO] [stdout]   --> src/lantenna.rs:54:35
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn transmit_0(socket: &UdpSocket, receiver: &str) -> Result<(), LantennaError> {
[INFO] [stdout]    |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receiver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `socket`
[INFO] [stdout]   --> src/lantenna.rs:68:15
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn transmit_1(socket: &UdpSocket, receiver: &str) -> Result<(), LantennaError> {
[INFO] [stdout]    |               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `receiver`
[INFO] [stdout]   --> src/lantenna.rs:68:35
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn transmit_1(socket: &UdpSocket, receiver: &str) -> Result<(), LantennaError> {
[INFO] [stdout]    |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receiver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SendError`
[INFO] [stdout]   --> src/lantenna.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     SendError(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EncodingError`
[INFO] [stdout]   --> src/lantenna.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     EncodingError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     send(&socket, "127.0.0.1:34253", &[4]);
[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: constant `bit_time` should have an upper case name
[INFO] [stdout]  --> src/lantenna.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const bit_time: u64 = 100;
[INFO] [stdout]   |       ^^^^^^^^ help: convert the identifier to upper case: `BIT_TIME`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lantenna.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     transmit_0(socket, receiver);
[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/lantenna.rs:46:21
[INFO] [stdout]    |
[INFO] [stdout] 46 |                     transmit_1(socket, receiver);
[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: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.81s
[INFO] running `Command { std: "docker" "inspect" "aa4888ea10bed038579a3885b0214a97801e957d5499e78f2d51740eea804b0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa4888ea10bed038579a3885b0214a97801e957d5499e78f2d51740eea804b0a", kill_on_drop: false }`
[INFO] [stdout] aa4888ea10bed038579a3885b0214a97801e957d5499e78f2d51740eea804b0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b1f0e04380ebb45703a8bcb6c9e5f078d90d51e4837e4f54f8494ccf5f5fa8cb
[INFO] running `Command { std: "docker" "start" "-a" "b1f0e04380ebb45703a8bcb6c9e5f078d90d51e4837e4f54f8494ccf5f5fa8cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling lantenna v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `socket`
[INFO] [stdout]   --> src/lantenna.rs:54:15
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn transmit_0(socket: &UdpSocket, receiver: &str) -> Result<(), LantennaError> {
[INFO] [stdout]    |               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `receiver`
[INFO] [stdout]   --> src/lantenna.rs:54:35
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn transmit_0(socket: &UdpSocket, receiver: &str) -> Result<(), LantennaError> {
[INFO] [stdout]    |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receiver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `socket`
[INFO] [stdout]   --> src/lantenna.rs:68:15
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn transmit_1(socket: &UdpSocket, receiver: &str) -> Result<(), LantennaError> {
[INFO] [stdout]    |               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `receiver`
[INFO] [stdout]   --> src/lantenna.rs:68:35
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn transmit_1(socket: &UdpSocket, receiver: &str) -> Result<(), LantennaError> {
[INFO] [stdout]    |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receiver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SendError`
[INFO] [stdout]   --> src/lantenna.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     SendError(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EncodingError`
[INFO] [stdout]   --> src/lantenna.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     EncodingError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     send(&socket, "127.0.0.1:34253", &[4]);
[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: constant `bit_time` should have an upper case name
[INFO] [stdout]  --> src/lantenna.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const bit_time: u64 = 100;
[INFO] [stdout]   |       ^^^^^^^^ help: convert the identifier to upper case: `BIT_TIME`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lantenna.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     transmit_0(socket, receiver);
[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/lantenna.rs:46:21
[INFO] [stdout]    |
[INFO] [stdout] 46 |                     transmit_1(socket, receiver);
[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: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "b1f0e04380ebb45703a8bcb6c9e5f078d90d51e4837e4f54f8494ccf5f5fa8cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1f0e04380ebb45703a8bcb6c9e5f078d90d51e4837e4f54f8494ccf5f5fa8cb", kill_on_drop: false }`
[INFO] [stdout] b1f0e04380ebb45703a8bcb6c9e5f078d90d51e4837e4f54f8494ccf5f5fa8cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 45520e7960b6126da76a9c111e5646a1b966995fc5d722ddb67a0b27b4ebd455
[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" "45520e7960b6126da76a9c111e5646a1b966995fc5d722ddb67a0b27b4ebd455", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `socket`
[INFO] [stderr]   --> src/lantenna.rs:54:15
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn transmit_0(socket: &UdpSocket, receiver: &str) -> Result<(), LantennaError> {
[INFO] [stderr]    |               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `receiver`
[INFO] [stderr]   --> src/lantenna.rs:54:35
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn transmit_0(socket: &UdpSocket, receiver: &str) -> Result<(), LantennaError> {
[INFO] [stderr]    |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receiver`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `socket`
[INFO] [stderr]   --> src/lantenna.rs:68:15
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn transmit_1(socket: &UdpSocket, receiver: &str) -> Result<(), LantennaError> {
[INFO] [stderr]    |               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `receiver`
[INFO] [stderr]   --> src/lantenna.rs:68:35
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn transmit_1(socket: &UdpSocket, receiver: &str) -> Result<(), LantennaError> {
[INFO] [stderr]    |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receiver`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SendError`
[INFO] [stderr]   --> src/lantenna.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     SendError(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `EncodingError`
[INFO] [stderr]   --> src/lantenna.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     EncodingError,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     send(&socket, "127.0.0.1:34253", &[4]);
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: constant `bit_time` should have an upper case name
[INFO] [stderr]  --> src/lantenna.rs:7:7
[INFO] [stderr]   |
[INFO] [stderr] 7 | const bit_time: u64 = 100;
[INFO] [stderr]   |       ^^^^^^^^ help: convert the identifier to upper case: `BIT_TIME`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/lantenna.rs:43:21
[INFO] [stderr]    |
[INFO] [stderr] 43 |                     transmit_0(socket, receiver);
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/lantenna.rs:46:21
[INFO] [stderr]    |
[INFO] [stderr] 46 |                     transmit_1(socket, receiver);
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `lantenna` (bin "lantenna" test) generated 10 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lantenna-96e74c0fdc3ca2e2)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "45520e7960b6126da76a9c111e5646a1b966995fc5d722ddb67a0b27b4ebd455", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45520e7960b6126da76a9c111e5646a1b966995fc5d722ddb67a0b27b4ebd455", kill_on_drop: false }`
[INFO] [stdout] 45520e7960b6126da76a9c111e5646a1b966995fc5d722ddb67a0b27b4ebd455