[INFO] fetching crate fstrings-rust-proc-macro 1.0.0... [INFO] checking fstrings-rust-proc-macro-1.0.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate fstrings-rust-proc-macro 1.0.0 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate fstrings-rust-proc-macro 1.0.0 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 fstrings-rust-proc-macro 1.0.0 [INFO] finished tweaking crates.io crate fstrings-rust-proc-macro 1.0.0 [INFO] tweaked toml for crates.io crate fstrings-rust-proc-macro 1.0.0 written to /workspace/builds/worker-1-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] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 6 packages to latest compatible versions [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.77) [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] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 19f675df4fa706d66c2a5f4b30b96d708f55f6ce8a8c8a46d82a5547155914f9 [INFO] running `Command { std: "docker" "start" "-a" "19f675df4fa706d66c2a5f4b30b96d708f55f6ce8a8c8a46d82a5547155914f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "19f675df4fa706d66c2a5f4b30b96d708f55f6ce8a8c8a46d82a5547155914f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "19f675df4fa706d66c2a5f4b30b96d708f55f6ce8a8c8a46d82a5547155914f9", kill_on_drop: false }` [INFO] [stdout] 19f675df4fa706d66c2a5f4b30b96d708f55f6ce8a8c8a46d82a5547155914f9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 6f9e7fcceb6a6f6684a27c525be9273872cee87536c2d6e3600a6b8f8cf15bf1 [INFO] running `Command { std: "docker" "start" "-a" "6f9e7fcceb6a6f6684a27c525be9273872cee87536c2d6e3600a6b8f8cf15bf1", kill_on_drop: false }` [INFO] [stderr] Checking syn v1.0.109 [INFO] [stderr] Checking fstrings-rust-proc-macro v1.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `ident` [INFO] [stdout] --> mod.rs:180:38 [INFO] [stdout] | [INFO] [stdout] 180 | | Segment::Self_(ident) => { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` 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] --> mod.rs:64:12 [INFO] [stdout] | [INFO] [stdout] 32 | let format_literal = input.parse()?; [INFO] [stdout] | -------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 33 | let mut positional_args = vec![]; [INFO] [stdout] | --------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 51 | let named_args = [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 64 | Ok(Self { [INFO] [stdout] | ____________^ [INFO] [stdout] 65 | | format_literal, [INFO] [stdout] 66 | | positional_args, [INFO] [stdout] 67 | | named_args, [INFO] [stdout] 68 | | }) [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] | [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] --> mod.rs:54:28 [INFO] [stdout] | [INFO] [stdout] 54 | |input| Ok({ [INFO] [stdout] | ____________________________^ [INFO] [stdout] 55 | | let name: Ident = input.parse()?; [INFO] [stdout] 56 | | let _: Token![=] = input.parse()?; [INFO] [stdout] 57 | | let expr: Expr = input.parse()?; [INFO] [stdout] 58 | | (name, expr) [INFO] [stdout] 59 | | }), [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] warning: unused borrow that must be used [INFO] [stdout] --> mod.rs:78:18 [INFO] [stdout] | [INFO] [stdout] 78 | debug_input!(&input); [INFO] [stdout] | ^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 78 | debug_input!(let _ = &input); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ident` [INFO] [stdout] --> mod.rs:180:38 [INFO] [stdout] | [INFO] [stdout] 180 | | Segment::Self_(ident) => { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fstrings-rust-proc-macro` (lib test) due to 3 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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] --> mod.rs:64:12 [INFO] [stdout] | [INFO] [stdout] 32 | let format_literal = input.parse()?; [INFO] [stdout] | -------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 33 | let mut positional_args = vec![]; [INFO] [stdout] | --------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 51 | let named_args = [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 64 | Ok(Self { [INFO] [stdout] | ____________^ [INFO] [stdout] 65 | | format_literal, [INFO] [stdout] 66 | | positional_args, [INFO] [stdout] 67 | | named_args, [INFO] [stdout] 68 | | }) [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] | [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] --> mod.rs:54:28 [INFO] [stdout] | [INFO] [stdout] 54 | |input| Ok({ [INFO] [stdout] | ____________________________^ [INFO] [stdout] 55 | | let name: Ident = input.parse()?; [INFO] [stdout] 56 | | let _: Token![=] = input.parse()?; [INFO] [stdout] 57 | | let expr: Expr = input.parse()?; [INFO] [stdout] 58 | | (name, expr) [INFO] [stdout] 59 | | }), [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] warning: unused borrow that must be used [INFO] [stdout] --> mod.rs:78:18 [INFO] [stdout] | [INFO] [stdout] 78 | debug_input!(&input); [INFO] [stdout] | ^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 78 | debug_input!(let _ = &input); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fstrings-rust-proc-macro` (lib) due to 3 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "6f9e7fcceb6a6f6684a27c525be9273872cee87536c2d6e3600a6b8f8cf15bf1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6f9e7fcceb6a6f6684a27c525be9273872cee87536c2d6e3600a6b8f8cf15bf1", kill_on_drop: false }` [INFO] [stdout] 6f9e7fcceb6a6f6684a27c525be9273872cee87536c2d6e3600a6b8f8cf15bf1