[INFO] fetching crate binartree 2.0.2... [INFO] checking binartree-2.0.2 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] extracting crate binartree 2.0.2 into /workspace/builds/worker-1-tc1/source [INFO] validating manifest of crates.io crate binartree 2.0.2 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate binartree 2.0.2 [INFO] finished tweaking crates.io crate binartree 2.0.2 [INFO] tweaked toml for crates.io crate binartree 2.0.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1b6c73c5217e9e8f3691320be702390154f4ea0cc56ca442e00278f821f912a1 [INFO] running `Command { std: "docker" "start" "-a" "1b6c73c5217e9e8f3691320be702390154f4ea0cc56ca442e00278f821f912a1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1b6c73c5217e9e8f3691320be702390154f4ea0cc56ca442e00278f821f912a1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1b6c73c5217e9e8f3691320be702390154f4ea0cc56ca442e00278f821f912a1", kill_on_drop: false }` [INFO] [stdout] 1b6c73c5217e9e8f3691320be702390154f4ea0cc56ca442e00278f821f912a1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 81cff50bbe1457edf0a1fcf3973a7bc1166c05871488d1fb803ca42666a54503 [INFO] running `Command { std: "docker" "start" "-a" "81cff50bbe1457edf0a1fcf3973a7bc1166c05871488d1fb803ca42666a54503", kill_on_drop: false }` [INFO] [stderr] Checking binartree v2.0.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/node.rs:206:5 [INFO] [stdout] | [INFO] [stdout] 206 | mem::drop(branch.key); [INFO] [stdout] | ^^^^^^^^^^----------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `T` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 206 - mem::drop(branch.key); [INFO] [stdout] 206 + let _ = branch.key; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/node.rs:206:5 [INFO] [stdout] | [INFO] [stdout] 206 | mem::drop(branch.key); [INFO] [stdout] | ^^^^^^^^^^----------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `T` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 206 - mem::drop(branch.key); [INFO] [stdout] 206 + let _ = branch.key; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s [INFO] running `Command { std: "docker" "inspect" "81cff50bbe1457edf0a1fcf3973a7bc1166c05871488d1fb803ca42666a54503", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "81cff50bbe1457edf0a1fcf3973a7bc1166c05871488d1fb803ca42666a54503", kill_on_drop: false }` [INFO] [stdout] 81cff50bbe1457edf0a1fcf3973a7bc1166c05871488d1fb803ca42666a54503 [INFO] checking binartree-2.0.2 against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu [INFO] extracting crate binartree 2.0.2 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate binartree 2.0.2 on toolchain f9935d29d867449445ee008640ccca1bf1ae0889 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate binartree 2.0.2 [INFO] finished tweaking crates.io crate binartree 2.0.2 [INFO] tweaked toml for crates.io crate binartree 2.0.2 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3f8ae31b0c2098a5cd3ae818532c5879871545fd459b56b2a42801d7183e7436 [INFO] running `Command { std: "docker" "start" "-a" "3f8ae31b0c2098a5cd3ae818532c5879871545fd459b56b2a42801d7183e7436", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3f8ae31b0c2098a5cd3ae818532c5879871545fd459b56b2a42801d7183e7436", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3f8ae31b0c2098a5cd3ae818532c5879871545fd459b56b2a42801d7183e7436", kill_on_drop: false }` [INFO] [stdout] 3f8ae31b0c2098a5cd3ae818532c5879871545fd459b56b2a42801d7183e7436 [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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9c6a9383c9068e55da853a251ab8060df6cd2304492dfe296f0dde5094aec1ac [INFO] running `Command { std: "docker" "start" "-a" "9c6a9383c9068e55da853a251ab8060df6cd2304492dfe296f0dde5094aec1ac", kill_on_drop: false }` [INFO] [stderr] Checking binartree v2.0.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/node.rs:206:5 [INFO] [stdout] | [INFO] [stdout] 206 | mem::drop(branch.key); [INFO] [stdout] | ^^^^^^^^^^----------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `T` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 206 - mem::drop(branch.key); [INFO] [stdout] 206 + let _ = branch.key; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/node.rs:206:5 [INFO] [stdout] | [INFO] [stdout] 206 | mem::drop(branch.key); [INFO] [stdout] | ^^^^^^^^^^----------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `T` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 206 - mem::drop(branch.key); [INFO] [stdout] 206 + let _ = branch.key; [INFO] [stdout] | [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/tests.rs:18:25 [INFO] [stdout] | [INFO] [stdout] 17 | let test_node = Node::::new(); [INFO] [stdout] | --------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 18 | assert_eq!(test_node, Node::Empty) [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/tests.rs:674:4 [INFO] [stdout] | [INFO] [stdout] 671 | let test_tree:BinaryTree = BinaryTree::default(); [INFO] [stdout] | --------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 674 | / BinaryTree { [INFO] [stdout] 675 | | top: Node::Empty, [INFO] [stdout] 676 | | size: 0, [INFO] [stdout] 677 | | } [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 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `binartree` (lib test) due to 3 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "9c6a9383c9068e55da853a251ab8060df6cd2304492dfe296f0dde5094aec1ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9c6a9383c9068e55da853a251ab8060df6cd2304492dfe296f0dde5094aec1ac", kill_on_drop: false }` [INFO] [stdout] 9c6a9383c9068e55da853a251ab8060df6cd2304492dfe296f0dde5094aec1ac