[INFO] fetching crate serde-tc-macro 0.4.0... [INFO] checking serde-tc-macro-0.4.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate serde-tc-macro 0.4.0 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate serde-tc-macro 0.4.0 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 serde-tc-macro 0.4.0 [INFO] finished tweaking crates.io crate serde-tc-macro 0.4.0 [INFO] tweaked toml for crates.io crate serde-tc-macro 0.4.0 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 11 packages to latest compatible versions [INFO] [stderr] Adding heck v0.3.3 (available: v0.5.0) [INFO] [stderr] Adding proc-macro-crate v0.1.5 (available: v3.2.0) [INFO] [stderr] Adding syn v1.0.109 (available: v2.0.77) [INFO] [stderr] Adding toml v0.5.11 (available: v0.8.19) [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] 481d3b2a76c3bf357a5597eb2e6c442e9d3a3f0efadbdf561a40145ebf068701 [INFO] running `Command { std: "docker" "start" "-a" "481d3b2a76c3bf357a5597eb2e6c442e9d3a3f0efadbdf561a40145ebf068701", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "481d3b2a76c3bf357a5597eb2e6c442e9d3a3f0efadbdf561a40145ebf068701", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "481d3b2a76c3bf357a5597eb2e6c442e9d3a3f0efadbdf561a40145ebf068701", kill_on_drop: false }` [INFO] [stdout] 481d3b2a76c3bf357a5597eb2e6c442e9d3a3f0efadbdf561a40145ebf068701 [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] a60ea2d619771216a2c104b4fa33a22b9cff7ed5a2adbe704eb17706f49757f4 [INFO] running `Command { std: "docker" "start" "-a" "a60ea2d619771216a2c104b4fa33a22b9cff7ed5a2adbe704eb17706f49757f4", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.210 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking unicode-segmentation v1.12.0 [INFO] [stderr] Checking heck v0.3.3 [INFO] [stderr] Checking toml v0.5.11 [INFO] [stderr] Checking proc-macro-crate v0.1.5 [INFO] [stderr] Checking serde-tc-macro v0.4.0 (/opt/rustwide/workdir) [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:25:11 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn serde_tc_full(_args: TokenStream, input: TokenStream) -> TokenStream { [INFO] [stdout] | ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 25 | match expand( [INFO] [stdout] | ___________^ [INFO] [stdout] 26 | | quote! {dispatcher, encoder, dict, tuple, async_methods, fallible = anyhow::Error, stub}, [INFO] [stdout] 27 | | TokenStream2::from(input), [INFO] [stdout] 28 | | ) { [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 `encoder` and `dispatcher` are never read [INFO] [stdout] --> src/args.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 37 | pub struct MacroArgs { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 41 | pub encoder: bool, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 42 | pub dispatcher: bool, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `MacroArgs` has a derived impl for the trait `Debug`, but this is 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; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `serde-tc-macro` (lib test) due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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:25:11 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn serde_tc_full(_args: TokenStream, input: TokenStream) -> TokenStream { [INFO] [stdout] | ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 25 | match expand( [INFO] [stdout] | ___________^ [INFO] [stdout] 26 | | quote! {dispatcher, encoder, dict, tuple, async_methods, fallible = anyhow::Error, stub}, [INFO] [stdout] 27 | | TokenStream2::from(input), [INFO] [stdout] 28 | | ) { [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 `encoder` and `dispatcher` are never read [INFO] [stdout] --> src/args.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 37 | pub struct MacroArgs { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 41 | pub encoder: bool, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 42 | pub dispatcher: bool, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `MacroArgs` has a derived impl for the trait `Debug`, but this is 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; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `serde-tc-macro` (lib) due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "a60ea2d619771216a2c104b4fa33a22b9cff7ed5a2adbe704eb17706f49757f4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a60ea2d619771216a2c104b4fa33a22b9cff7ed5a2adbe704eb17706f49757f4", kill_on_drop: false }` [INFO] [stdout] a60ea2d619771216a2c104b4fa33a22b9cff7ed5a2adbe704eb17706f49757f4