[INFO] cloning repository https://github.com/maciej-dudziak/exchange_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maciej-dudziak/exchange_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaciej-dudziak%2Fexchange_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaciej-dudziak%2Fexchange_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 265bd3f9b6df73300244d5cc0570acc3a80c8881
[INFO] checking maciej-dudziak/exchange_rust against try#2c4e58eac5a232e49065e517c1cf50b2715ccf85 for pr-140283
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaciej-dudziak%2Fexchange_rust" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/maciej-dudziak/exchange_rust
[INFO] finished tweaking git repo https://github.com/maciej-dudziak/exchange_rust
[INFO] tweaked toml for git repo https://github.com/maciej-dudziak/exchange_rust written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/maciej-dudziak/exchange_rust on toolchain 2c4e58eac5a232e49065e517c1cf50b2715ccf85
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2c4e58eac5a232e49065e517c1cf50b2715ccf85" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/maciej-dudziak/exchange_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" "+2c4e58eac5a232e49065e517c1cf50b2715ccf85" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2c4e58eac5a232e49065e517c1cf50b2715ccf85" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ed2699b83f0bec981162ed7610505e208461fae99289d3ead7c504283ef4901
[INFO] running `Command { std: "docker" "start" "-a" "6ed2699b83f0bec981162ed7610505e208461fae99289d3ead7c504283ef4901", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ed2699b83f0bec981162ed7610505e208461fae99289d3ead7c504283ef4901", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ed2699b83f0bec981162ed7610505e208461fae99289d3ead7c504283ef4901", kill_on_drop: false }`
[INFO] [stdout] 6ed2699b83f0bec981162ed7610505e208461fae99289d3ead7c504283ef4901
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2c4e58eac5a232e49065e517c1cf50b2715ccf85" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3770eac77e1fddd3e28cf6361d03c4bc255779b3e8d2b52116020d9b7b9463e
[INFO] running `Command { std: "docker" "start" "-a" "d3770eac77e1fddd3e28cf6361d03c4bc255779b3e8d2b52116020d9b7b9463e", kill_on_drop: false }`
[INFO] [stderr]     Checking exchange v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `resting_bid` and `resting_ask` are never read
[INFO] [stdout]  --> src/order_book/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct OrderBook {
[INFO] [stdout]   |            --------- fields in this struct
[INFO] [stdout] 7 |     resting_bid: BinaryHeap<Order>,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 8 |     resting_ask: BinaryHeap<Reverse<Order>>
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `OrderBook` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_order`, `match_asks`, and `match_bids` are never used
[INFO] [stdout]   --> src/order_book/mod.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl OrderBook {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn add_order(&mut self, order: Order, is_buy: bool) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn match_asks(&mut self, bid: &Order) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     fn match_bids(&mut self, ask: &Order) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/order_book/order.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Order {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn new(price: i32, timestamp: u64, quantity: i32, instrument: String) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "d3770eac77e1fddd3e28cf6361d03c4bc255779b3e8d2b52116020d9b7b9463e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3770eac77e1fddd3e28cf6361d03c4bc255779b3e8d2b52116020d9b7b9463e", kill_on_drop: false }`
[INFO] [stdout] d3770eac77e1fddd3e28cf6361d03c4bc255779b3e8d2b52116020d9b7b9463e