[INFO] fetching crate scout_game 0.1.1...
[INFO] building scout_game-0.1.1 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate scout_game 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate scout_game 0.1.1
[INFO] finished tweaking crates.io crate scout_game 0.1.1
[INFO] tweaked toml for crates.io crate scout_game 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate scout_game 0.1.1 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate scout_game 0.1.1 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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_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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecf5448cec2970a2ba3aa07a50737bfaac62a7a9c44f0a7eb495bfec4ae9113b
[INFO] running `Command { std: "docker" "start" "-a" "ecf5448cec2970a2ba3aa07a50737bfaac62a7a9c44f0a7eb495bfec4ae9113b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecf5448cec2970a2ba3aa07a50737bfaac62a7a9c44f0a7eb495bfec4ae9113b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecf5448cec2970a2ba3aa07a50737bfaac62a7a9c44f0a7eb495bfec4ae9113b", kill_on_drop: false }`
[INFO] [stdout] ecf5448cec2970a2ba3aa07a50737bfaac62a7a9c44f0a7eb495bfec4ae9113b
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a3f3e9162123fa1ea09cf0abbeac275bf1a1f7e2a92c77ca68bc5991828dd31
[INFO] running `Command { std: "docker" "start" "-a" "0a3f3e9162123fa1ea09cf0abbeac275bf1a1f7e2a92c77ca68bc5991828dd31", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling scout_game v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/strategies.rs:22:67
[INFO] [stdout]    |
[INFO] [stdout] 22 |             .flat_map(|start| (start..hand.len()).map(move |stop| (start..stop + 1)))
[INFO] [stdout]    |                                                                   ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 22 -             .flat_map(|start| (start..hand.len()).map(move |stop| (start..stop + 1)))
[INFO] [stdout] 22 +             .flat_map(|start| (start..hand.len()).map(move |stop| start..stop + 1 ))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.25s
[INFO] running `Command { std: "docker" "inspect" "0a3f3e9162123fa1ea09cf0abbeac275bf1a1f7e2a92c77ca68bc5991828dd31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a3f3e9162123fa1ea09cf0abbeac275bf1a1f7e2a92c77ca68bc5991828dd31", kill_on_drop: false }`
[INFO] [stdout] 0a3f3e9162123fa1ea09cf0abbeac275bf1a1f7e2a92c77ca68bc5991828dd31
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1af2011ab853172b6e86e2116e2b3973d126bceb338ec2b22f1081b65ca79227
[INFO] running `Command { std: "docker" "start" "-a" "1af2011ab853172b6e86e2116e2b3973d126bceb338ec2b22f1081b65ca79227", kill_on_drop: false }`
[INFO] [stderr]    Compiling scout_game v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/strategies.rs:22:67
[INFO] [stdout]    |
[INFO] [stdout] 22 |             .flat_map(|start| (start..hand.len()).map(move |stop| (start..stop + 1)))
[INFO] [stdout]    |                                                                   ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 22 -             .flat_map(|start| (start..hand.len()).map(move |stop| (start..stop + 1)))
[INFO] [stdout] 22 +             .flat_map(|start| (start..hand.len()).map(move |stop| start..stop + 1 ))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "1af2011ab853172b6e86e2116e2b3973d126bceb338ec2b22f1081b65ca79227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1af2011ab853172b6e86e2116e2b3973d126bceb338ec2b22f1081b65ca79227", kill_on_drop: false }`
[INFO] [stdout] 1af2011ab853172b6e86e2116e2b3973d126bceb338ec2b22f1081b65ca79227