[INFO] cloning repository https://github.com/SarthakMakhija/learning-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SarthakMakhija/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSarthakMakhija%2Flearning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSarthakMakhija%2Flearning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c17111474bda3bad7e5601da1158be35aa2540ce
[INFO] checking SarthakMakhija/learning-rust against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSarthakMakhija%2Flearning-rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SarthakMakhija/learning-rust
[INFO] finished tweaking git repo https://github.com/SarthakMakhija/learning-rust
[INFO] tweaked toml for git repo https://github.com/SarthakMakhija/learning-rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SarthakMakhija/learning-rust on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SarthakMakhija/learning-rust 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
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[INFO] running `Command { std: "docker" "start" "-a" "772e50b861c6b345db47b9ed133ae7b1dd03efac37d8095e36312a719d4b20f8", kill_on_drop: false }`
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[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
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[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> language/src/singular_update_queue/singular_update_queue.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> language/src/cache/expiry.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> language/src/cache/evicting_worker.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc` and `RwLock`
[INFO] [stdout]  --> language/src/cache/evicting_worker.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::{Arc, RwLock};
[INFO] [stdout]   |                 ^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Expiry` and `ValueRef`
[INFO] [stdout]  --> language/src/cache/evicting_worker.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::cache::expiry::{Expiry, ValueRef};
[INFO] [stdout]   |                            ^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Employees` is never constructed
[INFO] [stdout]  --> language/src/employees.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Employees {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Employee` is never constructed
[INFO] [stdout]  --> language/src/employees.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Employee {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_employees`, `find_by`, `find_by_predicate`, and `add` are never used
[INFO] [stdout]   --> language/src/employees.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Employees {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 13 |     fn new_employees() -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn find_by(&self, id: u16) -> Option<&Employee> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn find_by_predicate<F>(&self, predicate: F) -> Option<&Employee>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn add(&mut self, employee: Employee) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Employees` is never constructed
[INFO] [stdout]  --> language/src/lifetime.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Employees<'b> {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Employee` is never constructed
[INFO] [stdout]  --> language/src/lifetime.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Employee<'a> {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_employees`, `find_by`, and `add` are never used
[INFO] [stdout]   --> language/src/lifetime.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl<'a> Employees<'a> {
[INFO] [stdout]    | ---------------------- associated items in this implementation
[INFO] [stdout] 12 |     fn new_employees() -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn find_by(&self, id: u16) -> Option<&Employee> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn add(&mut self, employee: Employee<'a>) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse` is never used
[INFO] [stdout]  --> language/src/basic_error_handling.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn parse(inputs: Vec<&str>) -> Result<Vec<u64>, ParseIntError> {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OperationId` is never used
[INFO] [stdout]  --> language/src/closure.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum OperationId {
[INFO] [stdout]   |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ArithmeticFunction` is never used
[INFO] [stdout]  --> language/src/closure.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | type ArithmeticFunction = Box<dyn Fn(u32, u32) -> u32>;
[INFO] [stdout]   |      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticOperations` is never constructed
[INFO] [stdout]   --> language/src/closure.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct ArithmeticOperations {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add`, and `execute` are never used
[INFO] [stdout]   --> language/src/closure.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl ArithmeticOperations {
[INFO] [stdout]    | ------------------------- associated items in this implementation
[INFO] [stdout] 16 |     fn new() -> ArithmeticOperations {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn add<C>(&mut self, operation: OperationId, code: C)
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn execute(&self, operation_by_id: OperationId, a: u32, b: u32) -> Option<u32> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NodePointer` is never used
[INFO] [stdout]  --> language/src/linked_list.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | type NodePointer = Box<LinkedListNode>;
[INFO] [stdout]   |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LinkedList` is never constructed
[INFO] [stdout]  --> language/src/linked_list.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct LinkedList {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LinkedListNode` is never constructed
[INFO] [stdout]  --> language/src/linked_list.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct LinkedListNode {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `append`, `has`, and `count` are never used
[INFO] [stdout]   --> language/src/linked_list.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl LinkedList {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 13 |     fn new() -> LinkedList {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn append(&mut self, key: i64) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn has(&self, key: i64) -> bool {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn count(&self) -> u32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `append`, `has`, and `count` are never used
[INFO] [stdout]   --> language/src/linked_list.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl LinkedListNode {
[INFO] [stdout]    | ------------------- methods in this implementation
[INFO] [stdout] 33 |     fn append(&mut self, key: i64) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn has(&self, key: i64) -> bool {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     fn count(&self) -> u32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_of` is never used
[INFO] [stdout]  --> language/src/concurrency/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn sum_of(chunk: Vec<u64>) -> u64 {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sequential_sum_of` is never used
[INFO] [stdout]  --> language/src/concurrency/sequential_sum.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn sequential_sum_of(chunk: Vec<u64>) -> u64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CONCURRENCY_FACTOR` is never used
[INFO] [stdout]  --> language/src/concurrency/async_sum.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const CONCURRENCY_FACTOR: usize = 10;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum` is never used
[INFO] [stdout]  --> language/src/concurrency/async_sum.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | async fn sum(input: Vec<u64>) -> u64 {
[INFO] [stdout]   |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `concurrent_sum` is never used
[INFO] [stdout]   --> language/src/concurrency/async_sum.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | async fn concurrent_sum(input: Vec<u64>) -> Vec<JoinHandle<u64>> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `divide` is never used
[INFO] [stdout]   --> language/src/concurrency/async_sum.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn divide(input: &Vec<u64>, chunk_size: usize) -> Vec<Vec<u64>> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CONCURRENCY_FACTOR` is never used
[INFO] [stdout]  --> language/src/concurrency/concurrent_sum.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const CONCURRENCY_FACTOR: usize = 10;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum` is never used
[INFO] [stdout]  --> language/src/concurrency/concurrent_sum.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn sum(input: Vec<u64>) -> u64 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `concurrent_sum` is never used
[INFO] [stdout]   --> language/src/concurrency/concurrent_sum.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn concurrent_sum(input: Vec<u64>) -> Vec<JoinHandle<u64>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `divide` is never used
[INFO] [stdout]   --> language/src/concurrency/concurrent_sum.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn divide(input: &Vec<u64>, chunk_size: usize) -> Vec<Vec<u64>> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Storage` is never used
[INFO] [stdout]  --> language/src/singular_update_queue/singular_update_queue.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type Storage = Arc<RwLock<HashMap<String, String>>>;
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CommandHandler` is never used
[INFO] [stdout]  --> language/src/singular_update_queue/singular_update_queue.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | trait CommandHandler: Send + Sync {
[INFO] [stdout]   |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InMemoryStorageHandler` is never constructed
[INFO] [stdout]   --> language/src/singular_update_queue/singular_update_queue.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct InMemoryStorageHandler {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SingularUpdateQueue` is never constructed
[INFO] [stdout]   --> language/src/singular_update_queue/singular_update_queue.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct SingularUpdateQueue {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Command` is never used
[INFO] [stdout]   --> language/src/singular_update_queue/singular_update_queue.rs:39:6
[INFO] [stdout]    |
[INFO] [stdout] 39 | enum Command {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_respond_back` is never used
[INFO] [stdout]   --> language/src/singular_update_queue/singular_update_queue.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl Command {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 52 |     fn get_respond_back(&self) -> Sender<Status> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Status` is never used
[INFO] [stdout]   --> language/src/singular_update_queue/singular_update_queue.rs:65:6
[INFO] [stdout]    |
[INFO] [stdout] 65 | enum Status {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `init`, `spin_receiver`, and `execute` are never used
[INFO] [stdout]   --> language/src/singular_update_queue/singular_update_queue.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl SingularUpdateQueue {
[INFO] [stdout]    | ------------------------ associated items in this implementation
[INFO] [stdout] 70 |     fn init(handler: Arc<dyn CommandHandler>) -> SingularUpdateQueue {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75 |     fn spin_receiver(handler: Arc<dyn CommandHandler>) -> SingularUpdateQueue {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     fn execute(&self, command: Command) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Storage` is never used
[INFO] [stdout]  --> language/src/singular_update_queue/async_singular_update_queue.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type Storage = Arc<RwLock<HashMap<String, String>>>;
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AsyncSingularUpdateQueue` is never constructed
[INFO] [stdout]  --> language/src/singular_update_queue/async_singular_update_queue.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct AsyncSingularUpdateQueue {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Command` is never used
[INFO] [stdout]   --> language/src/singular_update_queue/async_singular_update_queue.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 | enum Command {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Status` is never used
[INFO] [stdout]   --> language/src/singular_update_queue/async_singular_update_queue.rs:27:6
[INFO] [stdout]    |
[INFO] [stdout] 27 | enum Status {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `init`, `spin_receiver`, and `execute` are never used
[INFO] [stdout]   --> language/src/singular_update_queue/async_singular_update_queue.rs:32:14
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl AsyncSingularUpdateQueue {
[INFO] [stdout]    | ----------------------------- associated items in this implementation
[INFO] [stdout] 32 |     async fn init(storage: Storage) -> AsyncSingularUpdateQueue {
[INFO] [stdout]    |              ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn spin_receiver(storage: Storage) -> AsyncSingularUpdateQueue {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     async fn execute(&self, command: Command) {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ShardedLockedStorage` is never used
[INFO] [stdout]  --> language/src/cache/evicting_cache.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub(crate) type ShardedLockedStorage = Arc<Vec<RwLock<HashMap<String, Arc<ValueRef>>>>>;
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `BucketIndex` is never used
[INFO] [stdout]   --> language/src/cache/evicting_cache.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub(crate) type BucketIndex = usize;
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EvictingCache` is never constructed
[INFO] [stdout]   --> language/src/cache/evicting_cache.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct EvictingCache {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `put`, `put_with_expiry`, `get`, and `index_of` are never used
[INFO] [stdout]   --> language/src/cache/evicting_cache.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl EvictingCache {
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] 18 |     fn new(buckets: usize) -> EvictingCache {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn put(&mut self, key: String, value: String) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn put_with_expiry(&mut self, key: String, value: String, expiry: Expiry) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     fn get(&self, key: String) -> Option<Arc<ValueRef>> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     fn index_of(&self, key: &String) -> BucketIndex {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ValueRef` is never constructed
[INFO] [stdout]  --> language/src/cache/expiry.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ValueRef {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `value`, and `has_expired` are never used
[INFO] [stdout]   --> language/src/cache/expiry.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl ValueRef {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 12 |     pub fn new(value: String, expiry: Expiry) -> ValueRef {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn value(&self) -> &String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn has_expired(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Expiry` is never constructed
[INFO] [stdout]   --> language/src/cache/expiry.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Expiry {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `never`, `immediate`, and `after_seconds` are never used
[INFO] [stdout]   --> language/src/cache/expiry.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl Expiry {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] 36 |     pub fn never() -> Expiry {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub(crate) fn immediate() -> Expiry {
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn after_seconds(time: u64) -> Expiry {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EvictingWorker` is never constructed
[INFO] [stdout]  --> language/src/cache/evicting_worker.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct EvictingWorker {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `SLEEP_FOR_SECONDS`, `run`, `run_from`, and `evict` are never used
[INFO] [stdout]   --> language/src/cache/evicting_worker.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl EvictingWorker {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 16 |     const SLEEP_FOR_SECONDS: Duration = Duration::from_micros(5);
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 17 |
[INFO] [stdout] 18 |     fn run(buckets: usize, storage: ShardedLockedStorage) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn run_from(buckets: usize, current_bucket: BucketIndex, storage: ShardedLockedStorage) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn evict(&self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> language/src/lifetime.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn find_by(&self, id: u16) -> Option<&Employee> {
[INFO] [stdout]    |                ^^^^^                     ^^^^^^^^^
[INFO] [stdout]    |                |                         ||
[INFO] [stdout]    |                |                         |the same lifetime is hidden here
[INFO] [stdout]    |                |                         the same lifetime is elided here
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn find_by(&self, id: u16) -> Option<&Employee<'_>> {
[INFO] [stdout]    |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> language/src/lifetime.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn find_by(&self, id: u16) -> Option<&Employee> {
[INFO] [stdout]    |                ^^^^^                     ^^^^^^^^^
[INFO] [stdout]    |                |                         ||
[INFO] [stdout]    |                |                         |the same lifetime is hidden here
[INFO] [stdout]    |                |                         the same lifetime is elided here
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn find_by(&self, id: u16) -> Option<&Employee<'_>> {
[INFO] [stdout]    |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking h2 v0.3.15
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking tower-http v0.3.4
[INFO] [stderr]     Checking hyper v0.14.23
[INFO] [stderr]     Checking axum v0.5.17
[INFO] [stderr]     Checking hyper-timeout v0.4.1
[INFO] [stderr]     Checking tonic v0.8.2
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> grpc/src/greetings_server.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> grpc/src/greetings_server.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::sync::mpsc`
[INFO] [stdout]  --> grpc/src/greetings_server.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tokio::sync::mpsc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tonic::transport::Server`
[INFO] [stdout]  --> grpc/src/greetings_server.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tonic::transport::Server;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::greetings_server::mod_greetings::greetings_client::GreetingsClient`
[INFO] [stdout]  --> grpc/src/greetings_server.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::greetings_server::mod_greetings::greetings_client::GreetingsClient;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::greetings_server::mod_greetings::greetings_server::GreetingsServer`
[INFO] [stdout]   --> grpc/src/greetings_server.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::greetings_server::mod_greetings::greetings_server::GreetingsServer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 37.40s
[INFO] running `Command { std: "docker" "inspect" "d72863d3a1f08ce241854ea670ac0fb7f89e947ce55dc592f35c4918d3e1372c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d72863d3a1f08ce241854ea670ac0fb7f89e947ce55dc592f35c4918d3e1372c", kill_on_drop: false }`
[INFO] [stdout] d72863d3a1f08ce241854ea670ac0fb7f89e947ce55dc592f35c4918d3e1372c
