[INFO] fetching crate arbitrage 0.0.3...
[INFO] checking arbitrage-0.0.3 against try#6619027b13a87a3597115f2c8231f107bf3a7a5f for pr-139624
[INFO] extracting crate arbitrage 0.0.3 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate arbitrage 0.0.3 on toolchain 6619027b13a87a3597115f2c8231f107bf3a7a5f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arbitrage 0.0.3
[INFO] finished tweaking crates.io crate arbitrage 0.0.3
[INFO] tweaked toml for crates.io crate arbitrage 0.0.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate arbitrage 0.0.3 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" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb710c3fd67e497d10bd31dd29848aa84461473e2112d8810757f4d2946857ed
[INFO] running `Command { std: "docker" "start" "-a" "eb710c3fd67e497d10bd31dd29848aa84461473e2112d8810757f4d2946857ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb710c3fd67e497d10bd31dd29848aa84461473e2112d8810757f4d2946857ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb710c3fd67e497d10bd31dd29848aa84461473e2112d8810757f4d2946857ed", kill_on_drop: false }`
[INFO] [stdout] eb710c3fd67e497d10bd31dd29848aa84461473e2112d8810757f4d2946857ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e1acded73b83be20ee3ed7f84b7a90145fdd6c35a789de62ab6978f338b500c
[INFO] running `Command { std: "docker" "start" "-a" "3e1acded73b83be20ee3ed7f84b7a90145fdd6c35a789de62ab6978f338b500c", kill_on_drop: false }`
[INFO] [stderr]     Checking arbitrage v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `string`, `convert`, and `fee` are never read
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct TradeAction {
[INFO] [stdout]   |            ----------- fields in this struct
[INFO] [stdout] 3 |     string: String,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 4 |     convert: f32,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 5 |     fee: f32,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TradeAction` 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: fields `string`, `convert`, and `fee` are never read
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct TradeAction {
[INFO] [stdout]   |            ----------- fields in this struct
[INFO] [stdout] 3 |     string: String,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 4 |     convert: f32,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 5 |     fee: f32,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TradeAction` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "3e1acded73b83be20ee3ed7f84b7a90145fdd6c35a789de62ab6978f338b500c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e1acded73b83be20ee3ed7f84b7a90145fdd6c35a789de62ab6978f338b500c", kill_on_drop: false }`
[INFO] [stdout] 3e1acded73b83be20ee3ed7f84b7a90145fdd6c35a789de62ab6978f338b500c