[INFO] cloning repository https://github.com/NeillJohnston/genetic-tetris-bot [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NeillJohnston/genetic-tetris-bot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNeillJohnston%2Fgenetic-tetris-bot", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNeillJohnston%2Fgenetic-tetris-bot'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 694894481fa191695b11af60852e10baa2a7949e [INFO] checking NeillJohnston/genetic-tetris-bot/694894481fa191695b11af60852e10baa2a7949e against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNeillJohnston%2Fgenetic-tetris-bot" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/NeillJohnston/genetic-tetris-bot 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 git repo https://github.com/NeillJohnston/genetic-tetris-bot [INFO] finished tweaking git repo https://github.com/NeillJohnston/genetic-tetris-bot [INFO] tweaked toml for git repo https://github.com/NeillJohnston/genetic-tetris-bot written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/NeillJohnston/genetic-tetris-bot 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 65dd2facccc798bcd4782ef0e830e5e7bc091497cd27ed6db693e9eaff79acb2 [INFO] running `Command { std: "docker" "start" "-a" "65dd2facccc798bcd4782ef0e830e5e7bc091497cd27ed6db693e9eaff79acb2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "65dd2facccc798bcd4782ef0e830e5e7bc091497cd27ed6db693e9eaff79acb2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "65dd2facccc798bcd4782ef0e830e5e7bc091497cd27ed6db693e9eaff79acb2", kill_on_drop: false }` [INFO] [stdout] 65dd2facccc798bcd4782ef0e830e5e7bc091497cd27ed6db693e9eaff79acb2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 3d63b133e1d6ad3ea89cd412fbd65200abb414d234b7c865b603357d7c6e152c [INFO] running `Command { std: "docker" "start" "-a" "3d63b133e1d6ad3ea89cd412fbd65200abb414d234b7c865b603357d7c6e152c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Checking tetris v0.1.0 (/opt/rustwide/workdir/tetris) [INFO] [stderr] Checking ppv-lite86 v0.2.8 [INFO] [stderr] Checking interface v0.1.0 (/opt/rustwide/workdir/interface) [INFO] [stdout] warning: unused variable: `state` [INFO] [stdout] --> interface/src/main.rs:27:8 [INFO] [stdout] | [INFO] [stdout] 27 | let (state, mino) = parse_request(&request); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_state` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mino` [INFO] [stdout] --> interface/src/main.rs:27:15 [INFO] [stdout] | [INFO] [stdout] 27 | let (state, mino) = parse_request(&request); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_mino` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `response` [INFO] [stdout] --> interface/src/main.rs:31:7 [INFO] [stdout] | [INFO] [stdout] 31 | let response = make_response(Vec::new()); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_response` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `state` [INFO] [stdout] --> interface/src/main.rs:27:8 [INFO] [stdout] | [INFO] [stdout] 27 | let (state, mino) = parse_request(&request); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_state` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mino` [INFO] [stdout] --> interface/src/main.rs:27:15 [INFO] [stdout] | [INFO] [stdout] 27 | let (state, mino) = parse_request(&request); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_mino` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `response` [INFO] [stdout] --> interface/src/main.rs:31:7 [INFO] [stdout] | [INFO] [stdout] 31 | let response = make_response(Vec::new()); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_response` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking genetic v0.1.0 (/opt/rustwide/workdir/genetic) [INFO] [stdout] warning: field `fitness_distribution` is never read [INFO] [stdout] --> genetic/src/genetic.rs:29:2 [INFO] [stdout] | [INFO] [stdout] 27 | pub struct Summary { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 28 | // 5-number summary of fitnesses [INFO] [stdout] 29 | fitness_distribution: [f64; 5] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Summary` 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] [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] --> genetic/src/genetic.rs:39:27 [INFO] [stdout] | [INFO] [stdout] 39 | .map(|individual| spawn(|| (individual.fitness(), individual))) [INFO] [stdout] | ---------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [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] --> genetic/src/genetic.rs:43:17 [INFO] [stdout] | [INFO] [stdout] 43 | .map(|handle| handle.join().unwrap()) [INFO] [stdout] | ------ ^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `genetic` (bin "genetic") due to 3 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: field `fitness_distribution` is never read [INFO] [stdout] --> genetic/src/genetic.rs:29:2 [INFO] [stdout] | [INFO] [stdout] 27 | pub struct Summary { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 28 | // 5-number summary of fitnesses [INFO] [stdout] 29 | fitness_distribution: [f64; 5] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Summary` 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] [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] --> genetic/src/genetic.rs:39:27 [INFO] [stdout] | [INFO] [stdout] 39 | .map(|individual| spawn(|| (individual.fitness(), individual))) [INFO] [stdout] | ---------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [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] --> genetic/src/genetic.rs:43:17 [INFO] [stdout] | [INFO] [stdout] 43 | .map(|handle| handle.join().unwrap()) [INFO] [stdout] | ------ ^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `genetic` (bin "genetic" test) due to 3 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "3d63b133e1d6ad3ea89cd412fbd65200abb414d234b7c865b603357d7c6e152c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3d63b133e1d6ad3ea89cd412fbd65200abb414d234b7c865b603357d7c6e152c", kill_on_drop: false }` [INFO] [stdout] 3d63b133e1d6ad3ea89cd412fbd65200abb414d234b7c865b603357d7c6e152c