[INFO] fetching crate static_merkle_tree 1.1.0... [INFO] checking static_merkle_tree-1.1.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate static_merkle_tree 1.1.0 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate static_merkle_tree 1.1.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate static_merkle_tree 1.1.0 [INFO] finished tweaking crates.io crate static_merkle_tree 1.1.0 [INFO] tweaked toml for crates.io crate static_merkle_tree 1.1.0 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 166a0a6fd3e77b2e31cae619b4e7eb2b8b74937aad54e2fcaaea42b353f593ee [INFO] running `Command { std: "docker" "start" "-a" "166a0a6fd3e77b2e31cae619b4e7eb2b8b74937aad54e2fcaaea42b353f593ee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "166a0a6fd3e77b2e31cae619b4e7eb2b8b74937aad54e2fcaaea42b353f593ee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "166a0a6fd3e77b2e31cae619b4e7eb2b8b74937aad54e2fcaaea42b353f593ee", kill_on_drop: false }` [INFO] [stdout] 166a0a6fd3e77b2e31cae619b4e7eb2b8b74937aad54e2fcaaea42b353f593ee [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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 71135bea97b0ddea6e210c1c5ba247c72ba4c98814ef0c5f0a56d76da673daf7 [INFO] running `Command { std: "docker" "start" "-a" "71135bea97b0ddea6e210c1c5ba247c72ba4c98814ef0c5f0a56d76da673daf7", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking static_merkle_tree v1.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this value of type `T` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:120:10 [INFO] [stdout] | [INFO] [stdout] 116 | pub fn verify(&self, root: &T, data: T, merge: M) -> bool [INFO] [stdout] | ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 120 | &self.0.iter().fold(data, |h, ref x| { [INFO] [stdout] | __________^ [INFO] [stdout] 121 | | if x.is_right { [INFO] [stdout] 122 | | merge(&h, &x.hash) [INFO] [stdout] 123 | | } else { [INFO] [stdout] 124 | | merge(&x.hash, &h) [INFO] [stdout] 125 | | } [INFO] [stdout] 126 | | }) == root [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 `T` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:120:10 [INFO] [stdout] | [INFO] [stdout] 116 | pub fn verify(&self, root: &T, data: T, merge: M) -> bool [INFO] [stdout] | ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 120 | &self.0.iter().fold(data, |h, ref x| { [INFO] [stdout] | __________^ [INFO] [stdout] 121 | | if x.is_right { [INFO] [stdout] 122 | | merge(&h, &x.hash) [INFO] [stdout] 123 | | } else { [INFO] [stdout] 124 | | merge(&x.hash, &h) [INFO] [stdout] 125 | | } [INFO] [stdout] 126 | | }) == root [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: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `static_merkle_tree` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `static_merkle_tree` (lib test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "71135bea97b0ddea6e210c1c5ba247c72ba4c98814ef0c5f0a56d76da673daf7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "71135bea97b0ddea6e210c1c5ba247c72ba4c98814ef0c5f0a56d76da673daf7", kill_on_drop: false }` [INFO] [stdout] 71135bea97b0ddea6e210c1c5ba247c72ba4c98814ef0c5f0a56d76da673daf7