[INFO] fetching crate arbitrage 0.0.3...
[INFO] testing arbitrage-0.0.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate arbitrage 0.0.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate arbitrage 0.0.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-3/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: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc853b650ca99507a01e3c582ec69eccec63aaae84abbd22378714b4026904a5
[INFO] running `Command { std: "docker" "start" "-a" "dc853b650ca99507a01e3c582ec69eccec63aaae84abbd22378714b4026904a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc853b650ca99507a01e3c582ec69eccec63aaae84abbd22378714b4026904a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc853b650ca99507a01e3c582ec69eccec63aaae84abbd22378714b4026904a5", kill_on_drop: false }`
[INFO] [stdout] dc853b650ca99507a01e3c582ec69eccec63aaae84abbd22378714b4026904a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f1d627865a8a3758a2d42e9904ae72254b43c162b85b762db612903d76c8f85
[INFO] running `Command { std: "docker" "start" "-a" "3f1d627865a8a3758a2d42e9904ae72254b43c162b85b762db612903d76c8f85", kill_on_drop: false }`
[INFO] [stderr]    Compiling arbitrage v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "3f1d627865a8a3758a2d42e9904ae72254b43c162b85b762db612903d76c8f85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f1d627865a8a3758a2d42e9904ae72254b43c162b85b762db612903d76c8f85", kill_on_drop: false }`
[INFO] [stdout] 3f1d627865a8a3758a2d42e9904ae72254b43c162b85b762db612903d76c8f85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31eeb37090fabd36d9d23787289785d60da0b751d10cf6f439536c482c6c2921
[INFO] running `Command { std: "docker" "start" "-a" "31eeb37090fabd36d9d23787289785d60da0b751d10cf6f439536c482c6c2921", kill_on_drop: false }`
[INFO] [stderr]    Compiling arbitrage v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "31eeb37090fabd36d9d23787289785d60da0b751d10cf6f439536c482c6c2921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31eeb37090fabd36d9d23787289785d60da0b751d10cf6f439536c482c6c2921", kill_on_drop: false }`
[INFO] [stdout] 31eeb37090fabd36d9d23787289785d60da0b751d10cf6f439536c482c6c2921
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 201a4d3d67330e96a64bbda1ef1e94f39afbf1ac44332a12006b5ae245dbdc6f
[INFO] running `Command { std: "docker" "start" "-a" "201a4d3d67330e96a64bbda1ef1e94f39afbf1ac44332a12006b5ae245dbdc6f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/arbitrage-b6246a9d55b4e0cf)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests arbitrage
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "201a4d3d67330e96a64bbda1ef1e94f39afbf1ac44332a12006b5ae245dbdc6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "201a4d3d67330e96a64bbda1ef1e94f39afbf1ac44332a12006b5ae245dbdc6f", kill_on_drop: false }`
[INFO] [stdout] 201a4d3d67330e96a64bbda1ef1e94f39afbf1ac44332a12006b5ae245dbdc6f