[INFO] fetching crate arc_new_cyclic_n 1.0.2... [INFO] checking arc_new_cyclic_n-1.0.2 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate arc_new_cyclic_n 1.0.2 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate arc_new_cyclic_n 1.0.2 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 arc_new_cyclic_n 1.0.2 [INFO] finished tweaking crates.io crate arc_new_cyclic_n 1.0.2 [INFO] tweaked toml for crates.io crate arc_new_cyclic_n 1.0.2 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] 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-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] ac668973b0f8a697118b356201005581d67650a6f542ac2a56da789c9ee00a00 [INFO] running `Command { std: "docker" "start" "-a" "ac668973b0f8a697118b356201005581d67650a6f542ac2a56da789c9ee00a00", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ac668973b0f8a697118b356201005581d67650a6f542ac2a56da789c9ee00a00", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ac668973b0f8a697118b356201005581d67650a6f542ac2a56da789c9ee00a00", kill_on_drop: false }` [INFO] [stdout] ac668973b0f8a697118b356201005581d67650a6f542ac2a56da789c9ee00a00 [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] 99181b7da8f512bcdb67a2b6382f8d70f2886487429bcb528793d69cb4fa8b98 [INFO] running `Command { std: "docker" "start" "-a" "99181b7da8f512bcdb67a2b6382f8d70f2886487429bcb528793d69cb4fa8b98", kill_on_drop: false }` [INFO] [stderr] Checking arc_new_cyclic_n v1.0.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: the feature `arc_new_cyclic` has been stable since 1.60.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(arc_new_cyclic)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `arc_new_cyclic` has been stable since 1.60.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(arc_new_cyclic)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` 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:21:13 [INFO] [stdout] | [INFO] [stdout] 8 | pub fn new_cyclic_2(data_fn: impl FnOnce(&Weak, &Weak) -> (A, B)) -> (Arc, Arc) { [INFO] [stdout] | -------------------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 9 | let mut b: Option> = None; [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 10 | [INFO] [stdout] 11 | let a = Arc::new_cyclic(|weak_a| { [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 21 | (a, b.unwrap()) [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/lib.rs:43:13 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn new_cyclic_3(data_fn: impl FnOnce(&Weak, &Weak, &Weak) -> (A, B, C)) -> (Arc, Arc, Arc) { [INFO] [stdout] | --------------------------------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 25 | let mut c: Option> = None; [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 26 | let mut b: Option> = None; [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 27 | [INFO] [stdout] 28 | let a = Arc::new_cyclic(|weak_a| { [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 43 | (a, b.unwrap(), c.unwrap()) [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:43:25 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn new_cyclic_3(data_fn: impl FnOnce(&Weak, &Weak, &Weak) -> (A, B, C)) -> (Arc, Arc, Arc) { [INFO] [stdout] | --------------------------------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 25 | let mut c: Option> = None; [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 26 | let mut b: Option> = None; [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 27 | [INFO] [stdout] 28 | let a = Arc::new_cyclic(|weak_a| { [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 43 | (a, b.unwrap(), c.unwrap()) [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] [stderr] error: could not compile `arc_new_cyclic_n` (lib) due to 4 previous errors; 1 warning 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] --> src/lib.rs:21:13 [INFO] [stdout] | [INFO] [stdout] 8 | pub fn new_cyclic_2(data_fn: impl FnOnce(&Weak, &Weak) -> (A, B)) -> (Arc, Arc) { [INFO] [stdout] | -------------------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 9 | let mut b: Option> = None; [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 10 | [INFO] [stdout] 11 | let a = Arc::new_cyclic(|weak_a| { [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 21 | (a, b.unwrap()) [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/lib.rs:43:13 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn new_cyclic_3(data_fn: impl FnOnce(&Weak, &Weak, &Weak) -> (A, B, C)) -> (Arc, Arc, Arc) { [INFO] [stdout] | --------------------------------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 25 | let mut c: Option> = None; [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 26 | let mut b: Option> = None; [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 27 | [INFO] [stdout] 28 | let a = Arc::new_cyclic(|weak_a| { [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 43 | (a, b.unwrap(), c.unwrap()) [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:43:25 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn new_cyclic_3(data_fn: impl FnOnce(&Weak, &Weak, &Weak) -> (A, B, C)) -> (Arc, Arc, Arc) { [INFO] [stdout] | --------------------------------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 25 | let mut c: Option> = None; [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 26 | let mut b: Option> = None; [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 27 | [INFO] [stdout] 28 | let a = Arc::new_cyclic(|weak_a| { [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 43 | (a, b.unwrap(), c.unwrap()) [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] [stderr] error: could not compile `arc_new_cyclic_n` (lib test) due to 4 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "99181b7da8f512bcdb67a2b6382f8d70f2886487429bcb528793d69cb4fa8b98", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "99181b7da8f512bcdb67a2b6382f8d70f2886487429bcb528793d69cb4fa8b98", kill_on_drop: false }` [INFO] [stdout] 99181b7da8f512bcdb67a2b6382f8d70f2886487429bcb528793d69cb4fa8b98