[INFO] cloning repository https://github.com/J4m3s00/tetris_2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/J4m3s00/tetris_2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJ4m3s00%2Ftetris_2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJ4m3s00%2Ftetris_2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2adb9a5e9bc23bcbc43cd14c3cce88f1514e7e4b
[INFO] building J4m3s00/tetris_2 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%2FJ4m3s00%2Ftetris_2" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/J4m3s00/tetris_2 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/J4m3s00/tetris_2
[INFO] finished tweaking git repo https://github.com/J4m3s00/tetris_2
[INFO] tweaked toml for git repo https://github.com/J4m3s00/tetris_2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/J4m3s00/tetris_2 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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 03a4c2954013c17dfe86b8b4f2abfc9cfdb62ae8a216e6bb54a50d6ef95c5aef
[INFO] running `Command { std: "docker" "start" "-a" "03a4c2954013c17dfe86b8b4f2abfc9cfdb62ae8a216e6bb54a50d6ef95c5aef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03a4c2954013c17dfe86b8b4f2abfc9cfdb62ae8a216e6bb54a50d6ef95c5aef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03a4c2954013c17dfe86b8b4f2abfc9cfdb62ae8a216e6bb54a50d6ef95c5aef", kill_on_drop: false }`
[INFO] [stdout] 03a4c2954013c17dfe86b8b4f2abfc9cfdb62ae8a216e6bb54a50d6ef95c5aef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d30002a7ae995cea36dd1d09cf629fb1f36fee9e0b797a38ed8f733d4a787caf
[INFO] running `Command { std: "docker" "start" "-a" "d30002a7ae995cea36dd1d09cf629fb1f36fee9e0b797a38ed8f733d4a787caf", kill_on_drop: false }`
[INFO] [stderr]    Compiling tetris_2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `EmptySolver` is never constructed
[INFO] [stdout]  --> src/solve/empty_solver.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct EmptySolver;
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "d30002a7ae995cea36dd1d09cf629fb1f36fee9e0b797a38ed8f733d4a787caf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d30002a7ae995cea36dd1d09cf629fb1f36fee9e0b797a38ed8f733d4a787caf", kill_on_drop: false }`
[INFO] [stdout] d30002a7ae995cea36dd1d09cf629fb1f36fee9e0b797a38ed8f733d4a787caf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 1262ef3b53936d31ad3bb0a4194b86c838df8fa91aaaad06e50df75963166dd5
[INFO] running `Command { std: "docker" "start" "-a" "1262ef3b53936d31ad3bb0a4194b86c838df8fa91aaaad06e50df75963166dd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling tetris_2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `EmptySolver` is never constructed
[INFO] [stdout]  --> src/solve/empty_solver.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct EmptySolver;
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "1262ef3b53936d31ad3bb0a4194b86c838df8fa91aaaad06e50df75963166dd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1262ef3b53936d31ad3bb0a4194b86c838df8fa91aaaad06e50df75963166dd5", kill_on_drop: false }`
[INFO] [stdout] 1262ef3b53936d31ad3bb0a4194b86c838df8fa91aaaad06e50df75963166dd5