[INFO] cloning repository https://github.com/harshkatiyar19/stock-exchange
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/harshkatiyar19/stock-exchange" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharshkatiyar19%2Fstock-exchange", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharshkatiyar19%2Fstock-exchange'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 34f57d801e832488ad84ea5b90fa6c75ef90a5d4
[INFO] checking harshkatiyar19/stock-exchange against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharshkatiyar19%2Fstock-exchange" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/harshkatiyar19/stock-exchange
[INFO] finished tweaking git repo https://github.com/harshkatiyar19/stock-exchange
[INFO] tweaked toml for git repo https://github.com/harshkatiyar19/stock-exchange written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/harshkatiyar19/stock-exchange on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/harshkatiyar19/stock-exchange 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6b9d155cd41305075450fd77b65b04bab606769f9f1c09b886b22cd7d84bf4e
[INFO] running `Command { std: "docker" "start" "-a" "c6b9d155cd41305075450fd77b65b04bab606769f9f1c09b886b22cd7d84bf4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6b9d155cd41305075450fd77b65b04bab606769f9f1c09b886b22cd7d84bf4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6b9d155cd41305075450fd77b65b04bab606769f9f1c09b886b22cd7d84bf4e", kill_on_drop: false }`
[INFO] [stdout] c6b9d155cd41305075450fd77b65b04bab606769f9f1c09b886b22cd7d84bf4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef30673c1f5ddb4219179f2f717ce979b877182b56aae41e6bcdf2996700d9ee
[INFO] running `Command { std: "docker" "start" "-a" "ef30673c1f5ddb4219179f2f717ce979b877182b56aae41e6bcdf2996700d9ee", kill_on_drop: false }`
[INFO] [stderr]     Checking stock-exchange v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::stocks::matching_engine2::order_node::OrderNode`
[INFO] [stdout]  --> src/stocks/matching_engine2/order_engine.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::stocks::matching_engine2::order_node::OrderNode;
[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: `crate::stocks::matching_engine2::order_node::OrderNode`
[INFO] [stdout]  --> src/stocks/matching_engine2/order_engine.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::stocks::matching_engine2::order_node::OrderNode;
[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: `crate::stocks::matching_engine2::order_store::OrderStore`
[INFO] [stdout]  --> src/stocks/matching_engine2/order_engine.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::stocks::matching_engine2::order_store::OrderStore;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/stocks/matching_engine2/order_store.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OrderMutated`
[INFO] [stdout]  --> src/stocks/matching_engine2/order_store.rs:2:54
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::stocks::matching_engine2::order_mutated::{OrderMutated, Status};
[INFO] [stdout]   |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::stocks::matching_engine2::order_store::OrderStore`
[INFO] [stdout]  --> src/stocks/matching_engine2/order_engine.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::stocks::matching_engine2::order_store::OrderStore;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/stocks/matching_engine2/order_store.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OrderMutated`
[INFO] [stdout]  --> src/stocks/matching_engine2/order_store.rs:2:54
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::stocks::matching_engine2::order_mutated::{OrderMutated, Status};
[INFO] [stdout]   |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/stocks/matching_engine2/order_store.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         ///covert code
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 20 |         let order_node=&self.arena[order_idx];
[INFO] [stdout]    |         -------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/stocks/matching_engine2/order_store.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         ///covert code
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 26 |         let price_level_idx=order_node.price_level_idx.unwrap();
[INFO] [stdout]    |         -------------------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/stocks/matching_engine2/order_store.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         ///covert code
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 20 |         let order_node=&self.arena[order_idx];
[INFO] [stdout]    |         -------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/stocks/matching_engine2/order_store.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         ///covert code
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 26 |         let price_level_idx=order_node.price_level_idx.unwrap();
[INFO] [stdout]    |         -------------------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/stocks/matching_engine2/order_store.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         ///covert code
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 34 |         &mut self.arena[order_idx]
[INFO] [stdout]    |         -------------------------- rustdoc does not generate documentation for expressions
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::stocks::matching_engine2::order_store::OrderStore`
[INFO] [stdout]  --> src/stocks/matching_engine2/price_level.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::stocks::matching_engine2::order_store::OrderStore;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/stocks/matching_engine2/stock_config.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::SystemTime`
[INFO] [stdout]  --> src/stocks/matching_engine2/stock_config.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::time::SystemTime;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/stocks/matching_engine2/order_store.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         ///covert code
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 34 |         &mut self.arena[order_idx]
[INFO] [stdout]    |         -------------------------- rustdoc does not generate documentation for expressions
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::stocks::matching_engine2::order_store::OrderStore`
[INFO] [stdout]  --> src/stocks/matching_engine2/price_level.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::stocks::matching_engine2::order_store::OrderStore;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/stocks/matching_engine2/stock_config.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::SystemTime`
[INFO] [stdout]  --> src/stocks/matching_engine2/stock_config.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::time::SystemTime;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prev`
[INFO] [stdout]    --> src/stocks/matching_engine2/engine.rs:218:15
[INFO] [stdout]     |
[INFO] [stdout] 218 |         let  (prev,next,price_level_idx)={
[INFO] [stdout]     |               ^^^^ help: if this is intentional, prefix it with an underscore: `_prev`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prev`
[INFO] [stdout]    --> src/stocks/matching_engine2/engine.rs:218:15
[INFO] [stdout]     |
[INFO] [stdout] 218 |         let  (prev,next,price_level_idx)={
[INFO] [stdout]     |               ^^^^ help: if this is intentional, prefix it with an underscore: `_prev`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p1`
[INFO] [stdout]   --> src/stocks/matching_engine2/order_mutated.rs:14:38
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub(crate) fn new(order_id: u64, p1: Side, price: u32, quantity: u16) -> Self{
[INFO] [stdout]    |                                      ^^ help: if this is intentional, prefix it with an underscore: `_p1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p1`
[INFO] [stdout]   --> src/stocks/matching_engine2/order_mutated.rs:14:38
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub(crate) fn new(order_id: u64, p1: Side, price: u32, quantity: u16) -> Self{
[INFO] [stdout]    |                                      ^^ help: if this is intentional, prefix it with an underscore: `_p1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Order` is never constructed
[INFO] [stdout]  --> src/stocks/matching_engine2/order.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Order{
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `order_id`, `price`, `quantity`, `timestamp`, `symbol`, and `side` are never read
[INFO] [stdout]   --> src/stocks/matching_engine2/order.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub struct Order{
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout]  6 |     order_id: u64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]  7 |     price: f64,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]  8 |     quantity: u16,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]  9 |     timestamp: SystemTime,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 10 |     symbol: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 11 |     side: Side,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/stocks/matching_engine2/order_mutated.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl OrderMutated {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 14 |     pub(crate) fn new(order_id: u64, p1: Side, price: u32, quantity: u16) -> Self{
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `range_percent` and `symbol` are never read
[INFO] [stdout]   --> src/stocks/matching_engine2/stock_config.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub struct StockConfig {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout]  5 |     range_percent:u8,//1%->1
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     symbol:String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Order` is never constructed
[INFO] [stdout]  --> src/stocks/matching_engine2/order.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Order{
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `order_id`, `price`, `quantity`, `timestamp`, `symbol`, and `side` are never read
[INFO] [stdout]   --> src/stocks/matching_engine2/order.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub struct Order{
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout]  6 |     order_id: u64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]  7 |     price: f64,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]  8 |     quantity: u16,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]  9 |     timestamp: SystemTime,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 10 |     symbol: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 11 |     side: Side,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/stocks/matching_engine2/order_mutated.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl OrderMutated {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 14 |     pub(crate) fn new(order_id: u64, p1: Side, price: u32, quantity: u16) -> Self{
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `range_percent` and `symbol` are never read
[INFO] [stdout]   --> src/stocks/matching_engine2/stock_config.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub struct StockConfig {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout]  5 |     range_percent:u8,//1%->1
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     symbol:String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `stock-exchange` (lib) due to 1 previous error; 15 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `stock-exchange` (lib test) due to 1 previous error; 15 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ef30673c1f5ddb4219179f2f717ce979b877182b56aae41e6bcdf2996700d9ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef30673c1f5ddb4219179f2f717ce979b877182b56aae41e6bcdf2996700d9ee", kill_on_drop: false }`
[INFO] [stdout] ef30673c1f5ddb4219179f2f717ce979b877182b56aae41e6bcdf2996700d9ee
