[INFO] fetching crate neat_lib 0.1.1... [INFO] checking neat_lib-0.1.1 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate neat_lib 0.1.1 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate neat_lib 0.1.1 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 neat_lib 0.1.1 [INFO] finished tweaking crates.io crate neat_lib 0.1.1 [INFO] tweaked toml for crates.io crate neat_lib 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate crates.io crate neat_lib 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" "+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] eb6207c7f8025c6b4b143564df48715e0856c178bec349e233c9c33daf34b123 [INFO] running `Command { std: "docker" "start" "-a" "eb6207c7f8025c6b4b143564df48715e0856c178bec349e233c9c33daf34b123", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "eb6207c7f8025c6b4b143564df48715e0856c178bec349e233c9c33daf34b123", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eb6207c7f8025c6b4b143564df48715e0856c178bec349e233c9c33daf34b123", kill_on_drop: false }` [INFO] [stdout] eb6207c7f8025c6b4b143564df48715e0856c178bec349e233c9c33daf34b123 [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] f1cbd968512a155b1f886f2ce5cd73ed386dffb88ad63153ceff6df2868a991d [INFO] running `Command { std: "docker" "start" "-a" "f1cbd968512a155b1f886f2ce5cd73ed386dffb88ad63153ceff6df2868a991d", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.69 [INFO] [stderr] Compiling libc v0.2.149 [INFO] [stderr] Compiling rustix v0.38.21 [INFO] [stderr] Compiling futures-core v0.3.29 [INFO] [stderr] Checking memchr v2.6.4 [INFO] [stderr] Compiling serde v1.0.190 [INFO] [stderr] Compiling futures-task v0.3.29 [INFO] [stderr] Checking linux-raw-sys v0.4.10 [INFO] [stderr] Checking regex-syntax v0.8.2 [INFO] [stderr] Checking bitflags v2.4.1 [INFO] [stderr] Checking futures-sink v0.3.29 [INFO] [stderr] Compiling num-traits v0.2.17 [INFO] [stderr] Compiling futures-channel v0.3.29 [INFO] [stderr] Compiling futures-util v0.3.29 [INFO] [stderr] Compiling serde_json v1.0.107 [INFO] [stderr] Checking log v0.4.20 [INFO] [stderr] Checking termcolor v1.3.0 [INFO] [stderr] Checking pin-project-lite v0.2.13 [INFO] [stderr] Checking itoa v1.0.9 [INFO] [stderr] Checking ryu v1.0.15 [INFO] [stderr] Checking futures-io v0.3.29 [INFO] [stderr] Checking aho-corasick v1.1.2 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling syn v2.0.38 [INFO] [stderr] Checking getrandom v0.2.10 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking is-terminal v0.4.9 [INFO] [stderr] Checking regex-automata v0.4.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking futures v0.3.29 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking rand_distr v0.4.3 [INFO] [stderr] Compiling serde_derive v1.0.190 [INFO] [stderr] Compiling uuid-macro-internal v1.5.0 [INFO] [stderr] Checking regex v1.10.2 [INFO] [stderr] Checking env_logger v0.10.0 [INFO] [stderr] Checking pretty_env_logger v0.5.0 [INFO] [stderr] Checking uuid v1.5.0 [INFO] [stderr] Checking neat_lib v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `super::attribute::FloatAttribute` [INFO] [stdout] --> src/neat/genome.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use super::attribute::FloatAttribute; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::neat::errors::Errors` [INFO] [stdout] --> src/neat/genome.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use crate::neat::errors::Errors; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::neat::activation::sigmod` [INFO] [stdout] --> src/neat/genome.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use crate::neat::activation::sigmod; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::attribute::FloatAttribute` [INFO] [stdout] --> src/neat/genome.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use super::attribute::FloatAttribute; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::neat::errors::Errors` [INFO] [stdout] --> src/neat/genome.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use crate::neat::errors::Errors; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::neat::activation::sigmod` [INFO] [stdout] --> src/neat/genome.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use crate::neat::activation::sigmod; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `low_max_innov` is never read [INFO] [stdout] --> src/neat/genome.rs:65:17 [INFO] [stdout] | [INFO] [stdout] 65 | let mut low_max_innov = 0; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `low_max_innov` is never read [INFO] [stdout] --> src/neat/genome.rs:65:17 [INFO] [stdout] | [INFO] [stdout] 65 | let mut low_max_innov = 0; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` 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/nn/feedforward.rs:66:21 [INFO] [stdout] | [INFO] [stdout] 50 | let layers = Self::create_layers(&inputs, &outputs, conns); [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 66 | genome: genome.clone(), [INFO] [stdout] | ^^^^^^^^^^^^^^ [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: aborting due to 1 previous error; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `neat_lib` (lib) due to 2 previous errors; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused variable: `gene` [INFO] [stdout] --> src/neat/gene.rs:68:13 [INFO] [stdout] | [INFO] [stdout] 68 | let gene = Gene::new_with_value(&config, 1, 0.0, GeneType::Input); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_gene` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/neat/population.rs:251:9 [INFO] [stdout] | [INFO] [stdout] 251 | population.set_fitness(vec![0.1, 0.2, 0.3, 0.4, 0.5]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 251 | let _ = population.set_fitness(vec![0.1, 0.2, 0.3, 0.4, 0.5]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/neat/population.rs:439:9 [INFO] [stdout] | [INFO] [stdout] 439 | population.breed_new_generation(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 439 | let _ = population.breed_new_generation(); [INFO] [stdout] | +++++++ [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/nn/feedforward.rs:66:21 [INFO] [stdout] | [INFO] [stdout] 50 | let layers = Self::create_layers(&inputs, &outputs, conns); [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 66 | genome: genome.clone(), [INFO] [stdout] | ^^^^^^^^^^^^^^ [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: aborting due to 1 previous error; 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `neat_lib` (lib test) due to 2 previous errors; 7 warnings emitted [INFO] running `Command { std: "docker" "inspect" "f1cbd968512a155b1f886f2ce5cd73ed386dffb88ad63153ceff6df2868a991d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f1cbd968512a155b1f886f2ce5cd73ed386dffb88ad63153ceff6df2868a991d", kill_on_drop: false }` [INFO] [stdout] f1cbd968512a155b1f886f2ce5cd73ed386dffb88ad63153ceff6df2868a991d