[INFO] fetching crate qwitlib 0.4.0... [INFO] checking qwitlib-0.4.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate qwitlib 0.4.0 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate qwitlib 0.4.0 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 qwitlib 0.4.0 [INFO] finished tweaking crates.io crate qwitlib 0.4.0 [INFO] tweaked toml for crates.io crate qwitlib 0.4.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 63 packages to latest compatible versions [INFO] [stderr] Adding calamine v0.24.0 (latest: v0.25.0) [INFO] [stderr] Adding linux-raw-sys v0.4.14 (latest: v0.6.5) [INFO] [stderr] Adding quick-xml v0.31.0 (latest: v0.36.1) [INFO] [stderr] Adding windows-core v0.52.0 (latest: v0.58.0) [INFO] [stderr] Adding windows-sys v0.52.0 (latest: v0.59.0) [INFO] [stderr] Adding zip v0.6.6 (latest: v2.2.0) [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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 11d2a6a2a5495036134a6dcd7b94427286f37becb00d1b58e196d846a08c282f [INFO] running `Command { std: "docker" "start" "-a" "11d2a6a2a5495036134a6dcd7b94427286f37becb00d1b58e196d846a08c282f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "11d2a6a2a5495036134a6dcd7b94427286f37becb00d1b58e196d846a08c282f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "11d2a6a2a5495036134a6dcd7b94427286f37becb00d1b58e196d846a08c282f", kill_on_drop: false }` [INFO] [stdout] 11d2a6a2a5495036134a6dcd7b94427286f37becb00d1b58e196d846a08c282f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2e996c5ce656928e27a66ed236a2c71b6bcc23a1c442af50bcb4fc7fc081f65d [INFO] running `Command { std: "docker" "start" "-a" "2e996c5ce656928e27a66ed236a2c71b6bcc23a1c442af50bcb4fc7fc081f65d", kill_on_drop: false }` [INFO] [stderr] Checking adler2 v2.0.0 [INFO] [stderr] Compiling rustix v0.38.35 [INFO] [stderr] Checking codepage v0.1.2 [INFO] [stderr] Checking quick-xml v0.31.0 [INFO] [stderr] Checking linux-raw-sys v0.4.14 [INFO] [stderr] Checking time v0.3.36 [INFO] [stderr] Checking once_cell v1.19.0 [INFO] [stderr] Checking miniz_oxide v0.8.0 [INFO] [stderr] Checking flate2 v1.0.33 [INFO] [stderr] Checking zip v0.6.6 [INFO] [stderr] Checking calamine v0.24.0 [INFO] [stderr] Checking tempfile v3.12.0 [INFO] [stderr] Checking qwitlib v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait `ToUnixEpoch` is never used [INFO] [stdout] --> src/epoch_conversion.rs:6:7 [INFO] [stdout] | [INFO] [stdout] 6 | trait ToUnixEpoch { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lines.rs:35:19 [INFO] [stdout] | [INFO] [stdout] 35 | pub struct QError(String); [INFO] [stdout] | ------ ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `QError` has derived impls for the traits `Clone` and `Debug`, but these are 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/lines.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn read_lines

(filename: P) -> Result>, QError> [INFO] [stdout] | ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 17 | let file = File::open(filename)?; [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 18 | Ok(io::BufReader::new(file).lines()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [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] --> src/lines.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 30 | pub fn read_file_lines(file: File) -> Result>, QError> { [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 31 | Ok(io::BufReader::new(file).lines()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/structure/schema.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 14 | let lines = read_lines(path).map_err(|err| vec![format!("{err:?}")])?; [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 15 | Ok(lines.map_while(Result::ok).collect()) [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 3 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `qwitlib` (lib) due to 4 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: trait `ToUnixEpoch` is never used [INFO] [stdout] --> src/epoch_conversion.rs:6:7 [INFO] [stdout] | [INFO] [stdout] 6 | trait ToUnixEpoch { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lines.rs:35:19 [INFO] [stdout] | [INFO] [stdout] 35 | pub struct QError(String); [INFO] [stdout] | ------ ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `QError` has derived impls for the traits `Clone` and `Debug`, but these are 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/lines.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn read_lines

(filename: P) -> Result>, QError> [INFO] [stdout] | ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 17 | let file = File::open(filename)?; [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 18 | Ok(io::BufReader::new(file).lines()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [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] --> src/lines.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 30 | pub fn read_file_lines(file: File) -> Result>, QError> { [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 31 | Ok(io::BufReader::new(file).lines()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/structure/schema.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 14 | let lines = read_lines(path).map_err(|err| vec![format!("{err:?}")])?; [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 15 | Ok(lines.map_while(Result::ok).collect()) [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 3 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `qwitlib` (lib test) due to 4 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "2e996c5ce656928e27a66ed236a2c71b6bcc23a1c442af50bcb4fc7fc081f65d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2e996c5ce656928e27a66ed236a2c71b6bcc23a1c442af50bcb4fc7fc081f65d", kill_on_drop: false }` [INFO] [stdout] 2e996c5ce656928e27a66ed236a2c71b6bcc23a1c442af50bcb4fc7fc081f65d