[INFO] fetching crate libtetris 0.0.6...
[INFO] checking libtetris-0.0.6 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] extracting crate libtetris 0.0.6 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate libtetris 0.0.6 on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libtetris 0.0.6
[INFO] finished tweaking crates.io crate libtetris 0.0.6
[INFO] tweaked toml for crates.io crate libtetris 0.0.6 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate libtetris 0.0.6 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7b49419429d2cf7ec29a8263d932fd003adec1e6dada6e9a5385d2fa65233d6
[INFO] running `Command { std: "docker" "start" "-a" "b7b49419429d2cf7ec29a8263d932fd003adec1e6dada6e9a5385d2fa65233d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7b49419429d2cf7ec29a8263d932fd003adec1e6dada6e9a5385d2fa65233d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7b49419429d2cf7ec29a8263d932fd003adec1e6dada6e9a5385d2fa65233d6", kill_on_drop: false }`
[INFO] [stdout] b7b49419429d2cf7ec29a8263d932fd003adec1e6dada6e9a5385d2fa65233d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c24e71fd252e54de5a723f06970e6bbbd257046d8eb12406afa0e95219f01be4
[INFO] running `Command { std: "docker" "start" "-a" "c24e71fd252e54de5a723f06970e6bbbd257046d8eb12406afa0e95219f01be4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking libtetris v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `StaticRand` is never constructed
[INFO] [stdout]  --> src/game.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct StaticRand;
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/game.rs:22:20
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new(random: Box<dyn Randomizer>) -> Game {
[INFO] [stdout]    |                --------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 21 |         Game {
[INFO] [stdout] 22 |             board: Board::new(random, 10, 20),
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libtetris` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c24e71fd252e54de5a723f06970e6bbbd257046d8eb12406afa0e95219f01be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c24e71fd252e54de5a723f06970e6bbbd257046d8eb12406afa0e95219f01be4", kill_on_drop: false }`
[INFO] [stdout] c24e71fd252e54de5a723f06970e6bbbd257046d8eb12406afa0e95219f01be4