[INFO] fetching crate notmecab 0.5.1... [INFO] checking notmecab-0.5.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate notmecab 0.5.1 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate notmecab 0.5.1 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate notmecab 0.5.1 [INFO] finished tweaking crates.io crate notmecab 0.5.1 [INFO] tweaked toml for crates.io crate notmecab 0.5.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 17 packages to latest compatible versions [INFO] [stderr] Adding ahash v0.2.19 (available: v0.8.11) [INFO] [stderr] Adding autocfg v0.1.8 (available: v1.3.0) [INFO] [stderr] Adding hashbrown v0.6.3 (available: v0.14.5) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6189df41580d75e2530b5e8c555e88e6fdedf3dbdf0b87564aa96052b834794d [INFO] running `Command { std: "docker" "start" "-a" "6189df41580d75e2530b5e8c555e88e6fdedf3dbdf0b87564aa96052b834794d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6189df41580d75e2530b5e8c555e88e6fdedf3dbdf0b87564aa96052b834794d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6189df41580d75e2530b5e8c555e88e6fdedf3dbdf0b87564aa96052b834794d", kill_on_drop: false }` [INFO] [stdout] 6189df41580d75e2530b5e8c555e88e6fdedf3dbdf0b87564aa96052b834794d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b3f8678b9fbb236f117e2d2dd967929a81679a2b7e29083ba73288a81576a87e [INFO] running `Command { std: "docker" "start" "-a" "b3f8678b9fbb236f117e2d2dd967929a81679a2b7e29083ba73288a81576a87e", kill_on_drop: false }` [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Compiling tiny-keccak v2.0.2 [INFO] [stderr] Compiling once_cell v1.19.0 [INFO] [stderr] Compiling libc v0.2.159 [INFO] [stderr] Compiling hashbrown v0.6.3 [INFO] [stderr] Checking memmap v0.7.0 [INFO] [stderr] Compiling getrandom v0.2.15 [INFO] [stderr] Compiling const-random-macro v0.1.16 [INFO] [stderr] Checking const-random v0.1.18 [INFO] [stderr] Checking ahash v0.2.19 [INFO] [stderr] Checking notmecab v0.5.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:287:13 [INFO] [stdout] | [INFO] [stdout] 287 | let mut matrix = &mut self.matrix; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:330:13 [INFO] [stdout] | [INFO] [stdout] 330 | let mut matrix = &mut self.matrix; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `pos` is never read [INFO] [stdout] --> src/lib.rs:95:5 [INFO] [stdout] | [INFO] [stdout] 88 | pub struct LexerToken { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 95 | pos : u16, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `LexerToken` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:287:13 [INFO] [stdout] | [INFO] [stdout] 287 | let mut matrix = &mut self.matrix; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:330:13 [INFO] [stdout] | [INFO] [stdout] 330 | let mut matrix = &mut self.matrix; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `Result` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:869:48 [INFO] [stdout] | [INFO] [stdout] 784 | let mut dict = Dict::load(sysdic, unkdic, matrix, unkdef).unwrap(); [INFO] [stdout] | -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 869 | if let Ok(mut common_left_edge_file) = File::open("data/common_edges_left.txt") [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: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `pos` is never read [INFO] [stdout] --> src/lib.rs:95:5 [INFO] [stdout] | [INFO] [stdout] 88 | pub struct LexerToken { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 95 | pos : u16, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `LexerToken` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `notmecab` (lib test) due to 2 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "b3f8678b9fbb236f117e2d2dd967929a81679a2b7e29083ba73288a81576a87e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b3f8678b9fbb236f117e2d2dd967929a81679a2b7e29083ba73288a81576a87e", kill_on_drop: false }` [INFO] [stdout] b3f8678b9fbb236f117e2d2dd967929a81679a2b7e29083ba73288a81576a87e