[INFO] fetching crate cactusref 0.5.0... [INFO] checking cactusref-0.5.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate cactusref 0.5.0 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate cactusref 0.5.0 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate cactusref 0.5.0 [INFO] finished tweaking crates.io crate cactusref 0.5.0 [INFO] tweaked toml for crates.io crate cactusref 0.5.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 32 packages to latest compatible versions [INFO] [stderr] Adding env_logger v0.10.2 (available: v0.11.5) [INFO] [stderr] Adding idna v0.5.0 (available: v1.0.2) [INFO] [stderr] Adding pulldown-cmark v0.9.6 (available: v0.12.1) [INFO] [stderr] Adding rustc-hash v1.1.0 (available: v2.0.0) [INFO] [stderr] Adding toml v0.7.8 (available: v0.8.19) [INFO] [stderr] Adding toml_edit v0.19.15 (available: v0.22.22) [INFO] [stderr] Adding winnow v0.5.40 (available: v0.6.20) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1daa7d08284d4c49610a036d87002c5872e0a1fe4102b92c76e5d0c38445c4d1 [INFO] running `Command { std: "docker" "start" "-a" "1daa7d08284d4c49610a036d87002c5872e0a1fe4102b92c76e5d0c38445c4d1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1daa7d08284d4c49610a036d87002c5872e0a1fe4102b92c76e5d0c38445c4d1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1daa7d08284d4c49610a036d87002c5872e0a1fe4102b92c76e5d0c38445c4d1", kill_on_drop: false }` [INFO] [stdout] 1daa7d08284d4c49610a036d87002c5872e0a1fe4102b92c76e5d0c38445c4d1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cd097c2c17b080a3bddbe805e049922132737508159d35020da77b2645112126 [INFO] running `Command { std: "docker" "start" "-a" "cd097c2c17b080a3bddbe805e049922132737508159d35020da77b2645112126", kill_on_drop: false }` [INFO] [stderr] Checking hashbrown v0.14.5 [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling pulldown-cmark v0.9.6 [INFO] [stderr] Checking winnow v0.5.40 [INFO] [stderr] Checking rustc-hash v1.1.0 [INFO] [stderr] Checking toml_datetime v0.6.8 [INFO] [stderr] Checking serde_spanned v0.6.8 [INFO] [stderr] Compiling semver v1.0.23 [INFO] [stderr] Checking env_logger v0.10.2 [INFO] [stderr] Checking quote v1.0.37 [INFO] [stderr] Checking indexmap v2.5.0 [INFO] [stderr] Checking cactusref v0.5.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary qualification [INFO] [stdout] --> src/rc.rs:1004:30 [INFO] [stdout] | [INFO] [stdout] 1004 | let value_size = mem::size_of_val(&*box_ptr); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | #![warn(unused_qualifications)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] help: remove the unnecessary path segments [INFO] [stdout] | [INFO] [stdout] 1004 - let value_size = mem::size_of_val(&*box_ptr); [INFO] [stdout] 1004 + let value_size = size_of_val(&*box_ptr); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking syn v2.0.77 [INFO] [stdout] warning: method `kill` is never used [INFO] [stdout] --> src/rc.rs:1832:8 [INFO] [stdout] | [INFO] [stdout] 1773 | pub(crate) trait RcInnerPtr { [INFO] [stdout] | ---------- method in this trait [INFO] [stdout] ... [INFO] [stdout] 1832 | fn kill(&self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking toml_edit v0.19.15 [INFO] [stderr] Checking toml v0.7.8 [INFO] [stderr] Checking version-sync v0.9.5 [INFO] [stdout] warning: unnecessary qualification [INFO] [stdout] --> src/rc.rs:1004:30 [INFO] [stdout] | [INFO] [stdout] 1004 | let value_size = mem::size_of_val(&*box_ptr); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | #![warn(unused_qualifications)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] help: remove the unnecessary path segments [INFO] [stdout] | [INFO] [stdout] 1004 - let value_size = mem::size_of_val(&*box_ptr); [INFO] [stdout] 1004 + let value_size = size_of_val(&*box_ptr); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `rc::Weak>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/rc/tests.rs:176:13 [INFO] [stdout] | [INFO] [stdout] 169 | let x = Rc::new(Box::new("hello")); [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 176 | let y = Weak::from_raw(y_ptr); [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] warning: method `kill` is never used [INFO] [stdout] --> src/rc.rs:1832:8 [INFO] [stdout] | [INFO] [stdout] 1773 | pub(crate) trait RcInnerPtr { [INFO] [stdout] | ---------- method in this trait [INFO] [stdout] ... [INFO] [stdout] 1832 | fn kill(&self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `cactusref` (lib test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "cd097c2c17b080a3bddbe805e049922132737508159d35020da77b2645112126", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd097c2c17b080a3bddbe805e049922132737508159d35020da77b2645112126", kill_on_drop: false }` [INFO] [stdout] cd097c2c17b080a3bddbe805e049922132737508159d35020da77b2645112126