[INFO] cloning repository https://github.com/coderaidershaun/triangular-arbitrage-hft
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/coderaidershaun/triangular-arbitrage-hft" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoderaidershaun%2Ftriangular-arbitrage-hft", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoderaidershaun%2Ftriangular-arbitrage-hft'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fab9dbcc779826bd0f9b53c3cc74b038a0d8af30
[INFO] checking coderaidershaun/triangular-arbitrage-hft against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoderaidershaun%2Ftriangular-arbitrage-hft" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/coderaidershaun/triangular-arbitrage-hft on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/coderaidershaun/triangular-arbitrage-hft
[INFO] finished tweaking git repo https://github.com/coderaidershaun/triangular-arbitrage-hft
[INFO] tweaked toml for git repo https://github.com/coderaidershaun/triangular-arbitrage-hft written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/coderaidershaun/triangular-arbitrage-hft 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "9976cccaeb3ba26cb1db44b73cb3c35e093b8e75b50e27a66231499680ce37ca", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "0e95ea3857ae2a19a81a2b6cee7f80456c4d861ee809b5cd258f5c601830bb08", kill_on_drop: false }`
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[INFO] [stdout] warning: struct `ExchangeRate` is never constructed
[INFO] [stdout]   --> src/models.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub struct ExchangeRate {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExchangeRate` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `exchange_rates` is never used
[INFO] [stdout]   --> src/traits.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub trait ExchangeData {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 10 |   fn exchange_rates(&self) -> &Vec<(String, String, f64)>;
[INFO] [stdout]    |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ExchangeRate` is never constructed
[INFO] [stdout]   --> src/models.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub struct ExchangeRate {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExchangeRate` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `exchange_rates` is never used
[INFO] [stdout]   --> src/traits.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub trait ExchangeData {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 10 |   fn exchange_rates(&self) -> &Vec<(String, String, f64)>;
[INFO] [stdout]    |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run_bellman_ford_single` is never used
[INFO] [stdout]   --> src/traits.rs:24:6
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub trait BellmanFordEx {
[INFO] [stdout]    |           ------------- method in this trait
[INFO] [stdout] 24 |   fn run_bellman_ford_single(&self) -> Option<Vec<Edge>>;
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.84s
[INFO] running `Command { std: "docker" "inspect" "0e95ea3857ae2a19a81a2b6cee7f80456c4d861ee809b5cd258f5c601830bb08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e95ea3857ae2a19a81a2b6cee7f80456c4d861ee809b5cd258f5c601830bb08", kill_on_drop: false }`
[INFO] [stdout] 0e95ea3857ae2a19a81a2b6cee7f80456c4d861ee809b5cd258f5c601830bb08