[INFO] fetching crate buddy-system 0.2.0... [INFO] checking buddy-system-0.2.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate buddy-system 0.2.0 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate buddy-system 0.2.0 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 buddy-system 0.2.0 [INFO] finished tweaking crates.io crate buddy-system 0.2.0 [INFO] tweaked toml for crates.io crate buddy-system 0.2.0 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 3 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-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] edbbe041d023a009ea8e99d064507613616ecc93154be89137fb7de093a29de9 [INFO] running `Command { std: "docker" "start" "-a" "edbbe041d023a009ea8e99d064507613616ecc93154be89137fb7de093a29de9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "edbbe041d023a009ea8e99d064507613616ecc93154be89137fb7de093a29de9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "edbbe041d023a009ea8e99d064507613616ecc93154be89137fb7de093a29de9", kill_on_drop: false }` [INFO] [stdout] edbbe041d023a009ea8e99d064507613616ecc93154be89137fb7de093a29de9 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1868afec322c4adec46a17649e50d184cc6a11c455b47f1bafbb2d4654ce8d6d [INFO] running `Command { std: "docker" "start" "-a" "1868afec322c4adec46a17649e50d184cc6a11c455b47f1bafbb2d4654ce8d6d", kill_on_drop: false }` [INFO] [stderr] Checking generational-arena v0.2.9 [INFO] [stderr] Checking buddy-system v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `pretty_print::prettify` [INFO] [stdout] --> src/arena.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | pretty_print::prettify, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` 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/arena.rs:81:24 [INFO] [stdout] | [INFO] [stdout] 81 | to_remove: self.to_remove_sender.clone(), [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/arena.rs:135:23 [INFO] [stdout] | [INFO] [stdout] 132 | let elements_vec: Vec = repeat_with(|| T::default()).take(size).collect(); [INFO] [stdout] | ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 135 | elements: elements_vec.into(), [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/arena.rs:136:26 [INFO] [stdout] | [INFO] [stdout] 132 | let elements_vec: Vec = repeat_with(|| T::default()).take(size).collect(); [INFO] [stdout] | ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 136 | bookkeeping: BuddyBookkeeping::new(size, min_block_size, max_block_size), [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] warning: unused variable: `a1` [INFO] [stdout] --> src/arena.rs:173:9 [INFO] [stdout] | [INFO] [stdout] 173 | let a1 = arena.alloc(64).unwrap(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_a1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a2` [INFO] [stdout] --> src/arena.rs:174:9 [INFO] [stdout] | [INFO] [stdout] 174 | let a2 = arena.alloc(24).unwrap(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_a2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a3` [INFO] [stdout] --> src/arena.rs:175:9 [INFO] [stdout] | [INFO] [stdout] 175 | let a3 = arena.alloc(2).unwrap(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_a3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a4` [INFO] [stdout] --> src/arena.rs:176:9 [INFO] [stdout] | [INFO] [stdout] 176 | let a4 = arena.alloc(7).unwrap(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_a4` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a5` [INFO] [stdout] --> src/arena.rs:177:9 [INFO] [stdout] | [INFO] [stdout] 177 | let a5 = arena.alloc(31).unwrap(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_a5` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a6` [INFO] [stdout] --> src/arena.rs:178:9 [INFO] [stdout] | [INFO] [stdout] 178 | let a6 = arena.alloc(60).unwrap(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_a6` [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/arena.rs:81:24 [INFO] [stdout] | [INFO] [stdout] 81 | to_remove: self.to_remove_sender.clone(), [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/arena.rs:135:23 [INFO] [stdout] | [INFO] [stdout] 132 | let elements_vec: Vec = repeat_with(|| T::default()).take(size).collect(); [INFO] [stdout] | ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 135 | elements: elements_vec.into(), [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/arena.rs:136:26 [INFO] [stdout] | [INFO] [stdout] 132 | let elements_vec: Vec = repeat_with(|| T::default()).take(size).collect(); [INFO] [stdout] | ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 136 | bookkeeping: BuddyBookkeeping::new(size, min_block_size, max_block_size), [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] [stderr] error: could not compile `buddy-system` (lib) due to 4 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 3 previous errors; 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `buddy-system` (lib test) due to 4 previous errors; 6 warnings emitted [INFO] running `Command { std: "docker" "inspect" "1868afec322c4adec46a17649e50d184cc6a11c455b47f1bafbb2d4654ce8d6d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1868afec322c4adec46a17649e50d184cc6a11c455b47f1bafbb2d4654ce8d6d", kill_on_drop: false }` [INFO] [stdout] 1868afec322c4adec46a17649e50d184cc6a11c455b47f1bafbb2d4654ce8d6d