[INFO] fetching crate n-mb 1.1.2... [INFO] checking n-mb-1.1.2 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate n-mb 1.1.2 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate n-mb 1.1.2 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] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml [INFO] started tweaking crates.io crate n-mb 1.1.2 [INFO] finished tweaking crates.io crate n-mb 1.1.2 [INFO] tweaked toml for crates.io crate n-mb 1.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate crates.io crate n-mb 1.1.2 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 9132c693b77375ab9f665d6d486430d5cd900876e4713d7b8396d7deefd583a0 [INFO] running `Command { std: "docker" "start" "-a" "9132c693b77375ab9f665d6d486430d5cd900876e4713d7b8396d7deefd583a0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9132c693b77375ab9f665d6d486430d5cd900876e4713d7b8396d7deefd583a0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9132c693b77375ab9f665d6d486430d5cd900876e4713d7b8396d7deefd583a0", kill_on_drop: false }` [INFO] [stdout] 9132c693b77375ab9f665d6d486430d5cd900876e4713d7b8396d7deefd583a0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c07bf3d50d62adf0d6a1660081a5133b4cafa466d91ba09ccf9db96e459af7fe [INFO] running `Command { std: "docker" "start" "-a" "c07bf3d50d62adf0d6a1660081a5133b4cafa466d91ba09ccf9db96e459af7fe", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.148 [INFO] [stderr] Compiling proc-macro2 v1.0.81 [INFO] [stderr] Checking utf8parse v0.2.1 [INFO] [stderr] Compiling crossbeam-utils v0.8.16 [INFO] [stderr] Checking anstyle-query v1.0.0 [INFO] [stderr] Compiling portable-atomic v1.4.3 [INFO] [stderr] Checking anstyle v1.0.3 [INFO] [stderr] Checking colorchoice v1.0.0 [INFO] [stderr] Checking clap_lex v0.5.1 [INFO] [stderr] Checking unicode-width v0.1.11 [INFO] [stderr] Compiling anyhow v1.0.75 [INFO] [stderr] Checking strsim v0.10.0 [INFO] [stderr] Checking pin-project-lite v0.2.13 [INFO] [stderr] Checking number_prefix v0.4.0 [INFO] [stderr] Checking bytes v1.6.0 [INFO] [stderr] Checking anstyle-parse v0.2.1 [INFO] [stderr] Checking anstream v0.5.0 [INFO] [stderr] Checking clap_builder v4.4.4 [INFO] [stderr] Checking crossbeam-channel v0.5.8 [INFO] [stderr] Checking console v0.15.7 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Checking pbr v1.1.1 [INFO] [stderr] Checking indicatif v0.17.7 [INFO] [stderr] Compiling syn v2.0.60 [INFO] [stderr] Checking clap v4.4.4 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Checking tokio v1.32.0 [INFO] [stderr] Checking n-mb v1.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `target_size`, `resolution`, and `progress_bar` are never read [INFO] [stdout] --> src/encoder.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct FFMPEGCommand { [INFO] [stdout] | ------------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 16 | pub target_size: u16, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 17 | pub resolution: Option<(u32, u32)>, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 25 | pub progress_bar: Option>, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Failed` is never constructed [INFO] [stdout] --> src/encoder.rs:340:5 [INFO] [stdout] | [INFO] [stdout] 338 | pub enum EncodingStatus { [INFO] [stdout] | -------------- variant in this enum [INFO] [stdout] 339 | Finished, [INFO] [stdout] 340 | Failed, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `EncodingStatus` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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/encoder.rs:310:12 [INFO] [stdout] | [INFO] [stdout] 293 | let mut command = Command::new("ffmpeg"); [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 310 | Ok(FFMPEGCommand { [INFO] [stdout] | ____________^ [INFO] [stdout] 311 | | file_name: path.file_name().unwrap().to_str().unwrap().to_owned(), [INFO] [stdout] 312 | | resolution: None, [INFO] [stdout] 313 | | duration: None, [INFO] [stdout] ... | [INFO] [stdout] 322 | | progress_bar: None, [INFO] [stdout] 323 | | }) [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] warning: fields `target_size`, `resolution`, and `progress_bar` are never read [INFO] [stdout] --> src/encoder.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct FFMPEGCommand { [INFO] [stdout] | ------------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 16 | pub target_size: u16, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 17 | pub resolution: Option<(u32, u32)>, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 25 | pub progress_bar: Option>, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Failed` is never constructed [INFO] [stdout] --> src/encoder.rs:340:5 [INFO] [stdout] | [INFO] [stdout] 338 | pub enum EncodingStatus { [INFO] [stdout] | -------------- variant in this enum [INFO] [stdout] 339 | Finished, [INFO] [stdout] 340 | Failed, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `EncodingStatus` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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/encoder.rs:310:12 [INFO] [stdout] | [INFO] [stdout] 293 | let mut command = Command::new("ffmpeg"); [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 310 | Ok(FFMPEGCommand { [INFO] [stdout] | ____________^ [INFO] [stdout] 311 | | file_name: path.file_name().unwrap().to_str().unwrap().to_owned(), [INFO] [stdout] 312 | | resolution: None, [INFO] [stdout] 313 | | duration: None, [INFO] [stdout] ... | [INFO] [stdout] 322 | | progress_bar: None, [INFO] [stdout] 323 | | }) [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; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `n-mb` (bin "nmb") due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `n-mb` (bin "nmb" test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "c07bf3d50d62adf0d6a1660081a5133b4cafa466d91ba09ccf9db96e459af7fe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c07bf3d50d62adf0d6a1660081a5133b4cafa466d91ba09ccf9db96e459af7fe", kill_on_drop: false }` [INFO] [stdout] c07bf3d50d62adf0d6a1660081a5133b4cafa466d91ba09ccf9db96e459af7fe