[INFO] fetching crate serde-json-fmt 0.1.0... [INFO] checking serde-json-fmt-0.1.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate serde-json-fmt 0.1.0 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate serde-json-fmt 0.1.0 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-json-fmt 0.1.0 [INFO] finished tweaking crates.io crate serde-json-fmt 0.1.0 [INFO] tweaked toml for crates.io crate serde-json-fmt 0.1.0 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 21 packages to latest compatible versions [INFO] [stderr] Adding rstest v0.17.0 (available: v0.22.0) [INFO] [stderr] Adding rstest_macros v0.17.0 (available: v0.22.0) [INFO] [stderr] Adding syn v1.0.109 (available: v2.0.77) [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-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7c58455de329a465e55fcc235699931304d2de8577bca8ac4a7f8d8acad05ec3 [INFO] running `Command { std: "docker" "start" "-a" "7c58455de329a465e55fcc235699931304d2de8577bca8ac4a7f8d8acad05ec3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7c58455de329a465e55fcc235699931304d2de8577bca8ac4a7f8d8acad05ec3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7c58455de329a465e55fcc235699931304d2de8577bca8ac4a7f8d8acad05ec3", kill_on_drop: false }` [INFO] [stdout] 7c58455de329a465e55fcc235699931304d2de8577bca8ac4a7f8d8acad05ec3 [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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c094e5b4f45b586ec41f37a9453a5b3698aafff9698bc5fbbfd8eb6f891760da [INFO] running `Command { std: "docker" "start" "-a" "c094e5b4f45b586ec41f37a9453a5b3698aafff9698bc5fbbfd8eb6f891760da", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.210 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling smartstring v1.0.1 [INFO] [stderr] Compiling rustc_version v0.4.1 [INFO] [stderr] Compiling rstest_macros v0.17.0 [INFO] [stderr] Checking serde_json v1.0.128 [INFO] [stderr] Checking serde-json-fmt v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking rstest v0.17.0 [INFO] [stdout] error: this value of type `Result, JsonSyntaxError>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:598:20 [INFO] [stdout] | [INFO] [stdout] 596 | #[case] r: Result, [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 597 | ) { [INFO] [stdout] 598 | assert_eq!(validate_string(s, Some('?')), r); [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: this value of type `Result, JsonSyntaxError>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:653:20 [INFO] [stdout] | [INFO] [stdout] 651 | #[case] r: Result, [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 652 | ) { [INFO] [stdout] 653 | assert_eq!(validate_string(s, None), r); [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: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `serde-json-fmt` (lib test) due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "c094e5b4f45b586ec41f37a9453a5b3698aafff9698bc5fbbfd8eb6f891760da", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c094e5b4f45b586ec41f37a9453a5b3698aafff9698bc5fbbfd8eb6f891760da", kill_on_drop: false }` [INFO] [stdout] c094e5b4f45b586ec41f37a9453a5b3698aafff9698bc5fbbfd8eb6f891760da