[INFO] fetching crate to_and_fro 0.6.0... [INFO] checking to_and_fro-0.6.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate to_and_fro 0.6.0 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate to_and_fro 0.6.0 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 to_and_fro 0.6.0 [INFO] finished tweaking crates.io crate to_and_fro 0.6.0 [INFO] tweaked toml for crates.io crate to_and_fro 0.6.0 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 14 packages to latest compatible versions [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] 466abf1fe159c38c2434ad83debf3e785c8b0c9b9b2a77ddbf586e4b935f63a3 [INFO] running `Command { std: "docker" "start" "-a" "466abf1fe159c38c2434ad83debf3e785c8b0c9b9b2a77ddbf586e4b935f63a3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "466abf1fe159c38c2434ad83debf3e785c8b0c9b9b2a77ddbf586e4b935f63a3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "466abf1fe159c38c2434ad83debf3e785c8b0c9b9b2a77ddbf586e4b935f63a3", kill_on_drop: false }` [INFO] [stdout] 466abf1fe159c38c2434ad83debf3e785c8b0c9b9b2a77ddbf586e4b935f63a3 [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] b1ea672fd0e8480dab1aebbaaec363a394aa5582a62827a09e30af09639ebbd3 [INFO] running `Command { std: "docker" "start" "-a" "b1ea672fd0e8480dab1aebbaaec363a394aa5582a62827a09e30af09639ebbd3", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Checking unicode-ident v1.0.12 [INFO] [stderr] Checking heck v0.5.0 [INFO] [stderr] Compiling ryu v1.0.18 [INFO] [stderr] Compiling itoa v1.0.11 [INFO] [stderr] Compiling percent-encoding v2.3.1 [INFO] [stderr] Compiling anyhow v1.0.86 [INFO] [stderr] Checking quote v1.0.37 [INFO] [stderr] Checking syn v2.0.77 [INFO] [stderr] Compiling serde_derive v1.0.209 [INFO] [stderr] Checking serde v1.0.209 [INFO] [stderr] Compiling serde_json v1.0.127 [INFO] [stderr] Checking to_and_fro v0.6.0 (/opt/rustwide/workdir) [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:37:5 [INFO] [stdout] | [INFO] [stdout] 32 | mut cb: impl FnMut(&Ident, String) -> proc_macro2::TokenStream, [INFO] [stdout] | -------------------------------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 33 | ) -> Vec { [INFO] [stdout] 34 | let default_caser: Caser = Rc::new(Box::new(|s| s.to_string())); [INFO] [stdout] | ------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 35 | let default_caser = match_supplied_casing(case_attr, input_attrs).unwrap_or(default_caser); [INFO] [stdout] | ------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 36 | [INFO] [stdout] 37 | / variants [INFO] [stdout] 38 | | .iter() [INFO] [stdout] 39 | | .map(|variant| { [INFO] [stdout] 40 | | if reject_if_present && should_reject(&variant.attrs) { [INFO] [stdout] ... | [INFO] [stdout] 50 | | cb(variant_name, cased_name) [INFO] [stdout] 51 | | }) [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/casing.rs:28:21 [INFO] [stdout] | [INFO] [stdout] 28 | .map(|attr| attr.parse_args::().unwrap().value()) [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/casing.rs:32:25 [INFO] [stdout] | [INFO] [stdout] 32 | .map(|attr| attr.parse_args::().unwrap().value())); [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/defaults.rs:8:21 [INFO] [stdout] | [INFO] [stdout] 8 | .map(|attr| attr.parse_args::().unwrap().value()) [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/lib.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 32 | mut cb: impl FnMut(&Ident, String) -> proc_macro2::TokenStream, [INFO] [stdout] | -------------------------------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 33 | ) -> Vec { [INFO] [stdout] 34 | let default_caser: Caser = Rc::new(Box::new(|s| s.to_string())); [INFO] [stdout] | ------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 35 | let default_caser = match_supplied_casing(case_attr, input_attrs).unwrap_or(default_caser); [INFO] [stdout] | ------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 36 | [INFO] [stdout] 37 | / variants [INFO] [stdout] 38 | | .iter() [INFO] [stdout] 39 | | .map(|variant| { [INFO] [stdout] 40 | | if reject_if_present && should_reject(&variant.attrs) { [INFO] [stdout] ... | [INFO] [stdout] 50 | | cb(variant_name, cased_name) [INFO] [stdout] 51 | | }) [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/casing.rs:28:21 [INFO] [stdout] | [INFO] [stdout] 28 | .map(|attr| attr.parse_args::().unwrap().value()) [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/casing.rs:32:25 [INFO] [stdout] | [INFO] [stdout] 32 | .map(|attr| attr.parse_args::().unwrap().value())); [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/defaults.rs:8:21 [INFO] [stdout] | [INFO] [stdout] 8 | .map(|attr| attr.parse_args::().unwrap().value()) [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 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `to_and_fro` (lib) due to 5 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `to_and_fro` (lib test) due to 5 previous errors [INFO] running `Command { std: "docker" "inspect" "b1ea672fd0e8480dab1aebbaaec363a394aa5582a62827a09e30af09639ebbd3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b1ea672fd0e8480dab1aebbaaec363a394aa5582a62827a09e30af09639ebbd3", kill_on_drop: false }` [INFO] [stdout] b1ea672fd0e8480dab1aebbaaec363a394aa5582a62827a09e30af09639ebbd3