[INFO] cloning repository https://github.com/nlbrown2/rust-cli-games
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nlbrown2/rust-cli-games" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnlbrown2%2Frust-cli-games", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnlbrown2%2Frust-cli-games'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66fa7506f6ce5be6cb5ba2935e55609adb8bd25d
[INFO] building nlbrown2/rust-cli-games against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnlbrown2%2Frust-cli-games" "/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/nlbrown2/rust-cli-games on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nlbrown2/rust-cli-games
[INFO] finished tweaking git repo https://github.com/nlbrown2/rust-cli-games
[INFO] tweaked toml for git repo https://github.com/nlbrown2/rust-cli-games written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/nlbrown2/rust-cli-games 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 068942a6057c49336bd70a74a0294cfb1d3f899d1952ebde033cf874208f9008
[INFO] running `Command { std: "docker" "start" "-a" "068942a6057c49336bd70a74a0294cfb1d3f899d1952ebde033cf874208f9008", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "068942a6057c49336bd70a74a0294cfb1d3f899d1952ebde033cf874208f9008", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "068942a6057c49336bd70a74a0294cfb1d3f899d1952ebde033cf874208f9008", kill_on_drop: false }`
[INFO] [stdout] 068942a6057c49336bd70a74a0294cfb1d3f899d1952ebde033cf874208f9008
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bb4a0ec912d14ccacc21080660f982246ffc8e14b8dbe54953cc0f0fe2cf135
[INFO] running `Command { std: "docker" "start" "-a" "8bb4a0ec912d14ccacc21080660f982246ffc8e14b8dbe54953cc0f0fe2cf135", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-othello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/player.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct HumanPlayer {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 4 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `HumanPlayer` 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 0.69s
[INFO] running `Command { std: "docker" "inspect" "8bb4a0ec912d14ccacc21080660f982246ffc8e14b8dbe54953cc0f0fe2cf135", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bb4a0ec912d14ccacc21080660f982246ffc8e14b8dbe54953cc0f0fe2cf135", kill_on_drop: false }`
[INFO] [stdout] 8bb4a0ec912d14ccacc21080660f982246ffc8e14b8dbe54953cc0f0fe2cf135
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a1274d9a24b8ad24851e48280f13350a767f29b1fe7c60102e3a1123d3cd322
[INFO] running `Command { std: "docker" "start" "-a" "7a1274d9a24b8ad24851e48280f13350a767f29b1fe7c60102e3a1123d3cd322", kill_on_drop: false }`
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/player.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct HumanPlayer {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 4 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `HumanPlayer` 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]    Compiling rust-othello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/player.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct HumanPlayer {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 4 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `HumanPlayer` 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 `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "7a1274d9a24b8ad24851e48280f13350a767f29b1fe7c60102e3a1123d3cd322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a1274d9a24b8ad24851e48280f13350a767f29b1fe7c60102e3a1123d3cd322", kill_on_drop: false }`
[INFO] [stdout] 7a1274d9a24b8ad24851e48280f13350a767f29b1fe7c60102e3a1123d3cd322