[INFO] fetching crate cadence_json 0.1.2... [INFO] checking cadence_json-0.1.2 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate cadence_json 0.1.2 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate cadence_json 0.1.2 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 cadence_json 0.1.2 [INFO] finished tweaking crates.io crate cadence_json 0.1.2 [INFO] tweaked toml for crates.io crate cadence_json 0.1.2 written to /workspace/builds/worker-7-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] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 25 packages to latest compatible versions [INFO] [stderr] Adding darling v0.13.4 (latest: v0.20.10) [INFO] [stderr] Adding darling_core v0.13.4 (latest: v0.20.10) [INFO] [stderr] Adding darling_macro v0.13.4 (latest: v0.20.10) [INFO] [stderr] Adding serde_with v1.14.0 (latest: v3.9.0) [INFO] [stderr] Adding serde_with_macros v1.5.2 (latest: v3.9.0) [INFO] [stderr] Adding strsim v0.10.0 (latest: v0.11.1) [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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f0185c9d22a097bb00b036cf75394b20628349b43fffd217b5d59fdc05bae7fd [INFO] running `Command { std: "docker" "start" "-a" "f0185c9d22a097bb00b036cf75394b20628349b43fffd217b5d59fdc05bae7fd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f0185c9d22a097bb00b036cf75394b20628349b43fffd217b5d59fdc05bae7fd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f0185c9d22a097bb00b036cf75394b20628349b43fffd217b5d59fdc05bae7fd", kill_on_drop: false }` [INFO] [stdout] f0185c9d22a097bb00b036cf75394b20628349b43fffd217b5d59fdc05bae7fd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a4eab0b4bf24dd0a4576c48a812f2b1480e1a3bdfaa56866c884554f2b6d15de [INFO] running `Command { std: "docker" "start" "-a" "a4eab0b4bf24dd0a4576c48a812f2b1480e1a3bdfaa56866c884554f2b6d15de", kill_on_drop: false }` [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Compiling darling_core v0.13.4 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking num-bigint v0.4.6 [INFO] [stderr] Compiling darling_macro v0.13.4 [INFO] [stderr] Compiling serde_derive v1.0.209 [INFO] [stderr] Compiling darling v0.13.4 [INFO] [stderr] Compiling serde_with_macros v1.5.2 [INFO] [stderr] Checking serde v1.0.209 [INFO] [stderr] Checking serde_with v1.14.0 [INFO] [stderr] Checking serde_json v1.0.127 [INFO] [stderr] Checking cadence_json v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `StrMap` is never constructed [INFO] [stdout] --> src/de.rs:43:8 [INFO] [stdout] | [INFO] [stdout] 43 | struct StrMap Result, R, E>(F); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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] --> src/lib.rs:122:23 [INFO] [stdout] | [INFO] [stdout] 122 | data: data.into_boxed_slice(), [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] --> src/de.rs:67:9 [INFO] [stdout] | [INFO] [stdout] 63 | fn visit_str(self, v: &str) -> Result [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 67 | self.0(v).map_err(E1::custom) [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/de.rs:93:12 [INFO] [stdout] | [INFO] [stdout] 80 | fn visit_map(self, mut map: A) -> Result [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 93 | Ok(match ty { [INFO] [stdout] | ____________^ [INFO] [stdout] 94 | | Void => ValueOwned::Void, [INFO] [stdout] 95 | | Optional => ValueOwned::Optional(map.next_value()?), [INFO] [stdout] 96 | | Bool => ValueOwned::Bool(map.next_value()?), [INFO] [stdout] ... | [INFO] [stdout] 128 | | Capability => ValueOwned::Capability(map.next_value()?), [INFO] [stdout] 129 | | }) [INFO] [stdout] | | ^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | |_________| [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: struct `StrMap` is never constructed [INFO] [stdout] --> src/de.rs:43:8 [INFO] [stdout] | [INFO] [stdout] 43 | struct StrMap Result, R, E>(F); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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] --> src/lib.rs:122:23 [INFO] [stdout] | [INFO] [stdout] 122 | data: data.into_boxed_slice(), [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] --> src/de.rs:67:9 [INFO] [stdout] | [INFO] [stdout] 63 | fn visit_str(self, v: &str) -> Result [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 67 | self.0(v).map_err(E1::custom) [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/de.rs:93:12 [INFO] [stdout] | [INFO] [stdout] 80 | fn visit_map(self, mut map: A) -> Result [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 93 | Ok(match ty { [INFO] [stdout] | ____________^ [INFO] [stdout] 94 | | Void => ValueOwned::Void, [INFO] [stdout] 95 | | Optional => ValueOwned::Optional(map.next_value()?), [INFO] [stdout] 96 | | Bool => ValueOwned::Bool(map.next_value()?), [INFO] [stdout] ... | [INFO] [stdout] 128 | | Capability => ValueOwned::Capability(map.next_value()?), [INFO] [stdout] 129 | | }) [INFO] [stdout] | | ^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | |_________| [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 3 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `cadence_json` (lib test) due to 4 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `cadence_json` (lib) due to 4 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "a4eab0b4bf24dd0a4576c48a812f2b1480e1a3bdfaa56866c884554f2b6d15de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a4eab0b4bf24dd0a4576c48a812f2b1480e1a3bdfaa56866c884554f2b6d15de", kill_on_drop: false }` [INFO] [stdout] a4eab0b4bf24dd0a4576c48a812f2b1480e1a3bdfaa56866c884554f2b6d15de