[INFO] cloning repository https://github.com/Migorithm/ralgorithm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Migorithm/ralgorithm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMigorithm%2Fralgorithm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMigorithm%2Fralgorithm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2bc56224fa8d4126f8b73c096bc195c058746e56
[INFO] checking Migorithm/ralgorithm/2bc56224fa8d4126f8b73c096bc195c058746e56 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMigorithm%2Fralgorithm" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Migorithm/ralgorithm on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Migorithm/ralgorithm
[INFO] finished tweaking git repo https://github.com/Migorithm/ralgorithm
[INFO] tweaked toml for git repo https://github.com/Migorithm/ralgorithm written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Migorithm/ralgorithm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e2249920d0e002f6ecf54066e2759263869a6fa69b55f1a2bd04c1a0a3188c0b
[INFO] running `Command { std: "docker" "start" "-a" "e2249920d0e002f6ecf54066e2759263869a6fa69b55f1a2bd04c1a0a3188c0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2249920d0e002f6ecf54066e2759263869a6fa69b55f1a2bd04c1a0a3188c0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2249920d0e002f6ecf54066e2759263869a6fa69b55f1a2bd04c1a0a3188c0b", kill_on_drop: false }`
[INFO] [stdout] e2249920d0e002f6ecf54066e2759263869a6fa69b55f1a2bd04c1a0a3188c0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dffe6ab83042835250d7d0b96e5da4260ed0b1ad39ad320e7b1d5f287aeb911a
[INFO] running `Command { std: "docker" "start" "-a" "dffe6ab83042835250d7d0b96e5da4260ed0b1ad39ad320e7b1d5f287aeb911a", kill_on_drop: false }`
[INFO] [stderr]     Checking algo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/algorithms/btree.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/algorithms/btree.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/designs/visitor/mod.rs:36:28
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn send_event_a(&self, e: &EventA) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/designs/visitor/mod.rs:40:28
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn send_event_b(&self, e: &EventB) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/designs/visitor/mod.rs:44:28
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn send_event_c(&self, e: &EventC) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/designs/visitor/mod.rs:51:28
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn send_event_a(&self, e: &EventA) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/designs/visitor/mod.rs:55:28
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn send_event_b(&self, e: &EventB) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/designs/visitor/mod.rs:59:28
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn send_event_c(&self, e: &EventC) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DoubleArray` is never constructed
[INFO] [stdout]  --> src/data_structure/array_doubling.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct DoubleArray<T: Ord + Copy> {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `push`, `len`, and `capacity` are never used
[INFO] [stdout]   --> src/data_structure/array_doubling.rs:7:8
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<T: Ord + Copy + std::fmt::Debug + Default> DoubleArray<T> {
[INFO] [stdout]    | -------------------------------------------------------------- methods in this implementation
[INFO] [stdout] 7  |     fn push(&mut self, value: T) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn len(&self) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn capacity(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PowerAdapter` is never constructed
[INFO] [stdout]  --> src/designs/adapter/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct PowerAdapter<T: TPlug> {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `convert`, `convert_bolt`, and `connect` are never used
[INFO] [stdout]   --> src/designs/adapter/mod.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | / impl<T> PowerAdapter<T>
[INFO] [stdout] 11 | | where
[INFO] [stdout] 12 | |     T: TPlug,
[INFO] [stdout]    | |_____________- associated items in this implementation
[INFO] [stdout] 13 |   {
[INFO] [stdout] 14 |       fn new(port: T) -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |       fn convert<U: TPlug>(self, port: U) -> PowerAdapter<U> {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |       fn convert_bolt(&self) -> u8 {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |       fn connect(&self, receptacle: impl TReceptacle) -> Result<(), &'static str> {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Memento` is never used
[INFO] [stdout]  --> src/designs/memento/mod.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait Memento<T> {
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Document` is never constructed
[INFO] [stdout]  --> src/designs/memento/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Document {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `save`, and `edit` are never used
[INFO] [stdout]   --> src/designs/memento/mod.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Document {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 11 |     pub fn new(content: &str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn save(&self) -> DocumentBackup {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn edit(&mut self, new_content: &str) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DocumentBackup` is never constructed
[INFO] [stdout]   --> src/designs/memento/mod.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct DocumentBackup {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `KimbabType` is never used
[INFO] [stdout]  --> src/designs/factory/mod.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum KimbabType {
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TKimbabStore` is never used
[INFO] [stdout]  --> src/designs/factory/mod.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | trait TKimbabStore {
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TKimbab` is never used
[INFO] [stdout]   --> src/designs/factory/mod.rs:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 | trait TKimbab {
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NYKimbabStore` is never constructed
[INFO] [stdout]   --> src/designs/factory/mod.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct NYKimbabStore;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NYTunaKimbab` is never constructed
[INFO] [stdout]   --> src/designs/factory/mod.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | struct NYTunaKimbab;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NYVeggieKimbab` is never constructed
[INFO] [stdout]   --> src/designs/factory/mod.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct NYVeggieKimbab;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EventA` is never constructed
[INFO] [stdout]  --> src/designs/visitor/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct EventA;
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EventB` is never constructed
[INFO] [stdout]  --> src/designs/visitor/mod.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct EventB;
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EventC` is never constructed
[INFO] [stdout]  --> src/designs/visitor/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct EventC;
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TSender` is never used
[INFO] [stdout]  --> src/designs/visitor/mod.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | trait TSender {
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TNotification` is never used
[INFO] [stdout]   --> src/designs/visitor/mod.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | trait TNotification {
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EmailSender` is never constructed
[INFO] [stdout]   --> src/designs/visitor/mod.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct EmailSender;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SlackSender` is never constructed
[INFO] [stdout]   --> src/designs/visitor/mod.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct SlackSender;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/designs/visitor/mod.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/designs/visitor/mod.rs:36:28
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn send_event_a(&self, e: &EventA) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/designs/visitor/mod.rs:40:28
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn send_event_b(&self, e: &EventB) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/designs/visitor/mod.rs:44:28
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn send_event_c(&self, e: &EventC) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/designs/visitor/mod.rs:51:28
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn send_event_a(&self, e: &EventA) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/designs/visitor/mod.rs:55:28
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn send_event_b(&self, e: &EventB) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/designs/visitor/mod.rs:59:28
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn send_event_c(&self, e: &EventC) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `convert` is never used
[INFO] [stdout]   --> src/designs/adapter/mod.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | / impl<T> PowerAdapter<T>
[INFO] [stdout] 11 | | where
[INFO] [stdout] 12 | |     T: TPlug,
[INFO] [stdout]    | |_____________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |       fn convert<U: TPlug>(self, port: U) -> PowerAdapter<U> {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Tuna` is never constructed
[INFO] [stdout]  --> src/designs/factory/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum KimbabType {
[INFO] [stdout]   |      ---------- variant in this enum
[INFO] [stdout] 3 |     Tuna,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EventA` is never constructed
[INFO] [stdout]  --> src/designs/visitor/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct EventA;
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EventB` is never constructed
[INFO] [stdout]  --> src/designs/visitor/mod.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct EventB;
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EventC` is never constructed
[INFO] [stdout]  --> src/designs/visitor/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct EventC;
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TSender` is never used
[INFO] [stdout]  --> src/designs/visitor/mod.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | trait TSender {
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TNotification` is never used
[INFO] [stdout]   --> src/designs/visitor/mod.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | trait TNotification {
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EmailSender` is never constructed
[INFO] [stdout]   --> src/designs/visitor/mod.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct EmailSender;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SlackSender` is never constructed
[INFO] [stdout]   --> src/designs/visitor/mod.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct SlackSender;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/designs/visitor/mod.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "dffe6ab83042835250d7d0b96e5da4260ed0b1ad39ad320e7b1d5f287aeb911a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dffe6ab83042835250d7d0b96e5da4260ed0b1ad39ad320e7b1d5f287aeb911a", kill_on_drop: false }`
[INFO] [stdout] dffe6ab83042835250d7d0b96e5da4260ed0b1ad39ad320e7b1d5f287aeb911a