[INFO] fetching crate libmars 0.5.3...
[INFO] checking libmars-0.5.3 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] extracting crate libmars 0.5.3 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate libmars 0.5.3 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 libmars 0.5.3
[INFO] finished tweaking crates.io crate libmars 0.5.3
[INFO] tweaked toml for crates.io crate libmars 0.5.3 written to /workspace/builds/worker-2-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 18 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b306f7acebe4506d7a56964545bd23f02868b494729001550e31636af251028d
[INFO] running `Command { std: "docker" "start" "-a" "b306f7acebe4506d7a56964545bd23f02868b494729001550e31636af251028d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b306f7acebe4506d7a56964545bd23f02868b494729001550e31636af251028d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b306f7acebe4506d7a56964545bd23f02868b494729001550e31636af251028d", kill_on_drop: false }`
[INFO] [stdout] b306f7acebe4506d7a56964545bd23f02868b494729001550e31636af251028d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e4f98118b0ed9bc52a1be7a397abaa39383a9cc0dbd654d426883651060324d5
[INFO] running `Command { std: "docker" "start" "-a" "e4f98118b0ed9bc52a1be7a397abaa39383a9cc0dbd654d426883651060324d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling x11 v2.21.0
[INFO] [stderr]     Checking libmars v0.5.3 (/opt/rustwide/workdir)
[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/wm/x11/backend.rs:419:44
[INFO] [stdout]     |
[INFO] [stdout] 419 |         let client = wm.clients().find(|c| c.borrow().window() == event.window).cloned();
[INFO] [stdout]     |                                            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/wm/x11/backend.rs:420:43
[INFO] [stdout]     |
[INFO] [stdout] 420 |         let inner = wm.clients().find(|c| c.borrow().window() == event.window).map(|c| c.borrow().inner_dimensions());
[INFO] [stdout]     |                                           ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/wm/x11/backend.rs:420:88
[INFO] [stdout]     |
[INFO] [stdout] 420 |         let inner = wm.clients().find(|c| c.borrow().window() == event.window).map(|c| c.borrow().inner_dimensions());
[INFO] [stdout]     |                                                                                        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/wm/x11/backend.rs:502:53
[INFO] [stdout]     |
[INFO] [stdout] 502 |         let client_rc = match wm.clients().find(|c| c.borrow().window() == event.window) {
[INFO] [stdout]     |                                                     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/wm/x11/backend.rs:599:52
[INFO] [stdout]     |
[INFO] [stdout] 599 |         let already_managed = wm.clients().any(|c| c.borrow().window() == event.window);
[INFO] [stdout]     |                                                    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/wm/x11/backend.rs:662:38
[INFO] [stdout]     |
[INFO] [stdout] 662 |         return wm.clients().find(|c| c.borrow().frame() == frame || c.borrow().title_window() == Some(frame)).cloned();
[INFO] [stdout]     |                                      ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/wm/x11/backend.rs:662:69
[INFO] [stdout]     |
[INFO] [stdout] 662 |         return wm.clients().find(|c| c.borrow().frame() == frame || c.borrow().title_window() == Some(frame)).cloned();
[INFO] [stdout]     |                                                                     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/wm/x11/backend.rs:666:38
[INFO] [stdout]     |
[INFO] [stdout] 666 |         return wm.clients().find(|c| c.borrow().window() == window).cloned();
[INFO] [stdout]     |                                      ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/wm/x11/backend.rs:696:57
[INFO] [stdout]     |
[INFO] [stdout] 696 |         let data_vec: Vec<u64> = clients.iter().map(|c| c.borrow().window()).collect();
[INFO] [stdout]     |                                                         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/wm/x11/backend.rs:697:73
[INFO] [stdout]     |
[INFO] [stdout] 697 |         let data_stacked_vec: Vec<u64> = clients_stacked.iter().map(|c| c.borrow().window()).collect();
[INFO] [stdout]     |                                                                         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libmars` (lib) due to 11 previous errors
[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/wm/x11/backend.rs:419:44
[INFO] [stdout]     |
[INFO] [stdout] 419 |         let client = wm.clients().find(|c| c.borrow().window() == event.window).cloned();
[INFO] [stdout]     |                                            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/wm/x11/backend.rs:420:43
[INFO] [stdout]     |
[INFO] [stdout] 420 |         let inner = wm.clients().find(|c| c.borrow().window() == event.window).map(|c| c.borrow().inner_dimensions());
[INFO] [stdout]     |                                           ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/wm/x11/backend.rs:420:88
[INFO] [stdout]     |
[INFO] [stdout] 420 |         let inner = wm.clients().find(|c| c.borrow().window() == event.window).map(|c| c.borrow().inner_dimensions());
[INFO] [stdout]     |                                                                                        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/wm/x11/backend.rs:502:53
[INFO] [stdout]     |
[INFO] [stdout] 502 |         let client_rc = match wm.clients().find(|c| c.borrow().window() == event.window) {
[INFO] [stdout]     |                                                     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/wm/x11/backend.rs:599:52
[INFO] [stdout]     |
[INFO] [stdout] 599 |         let already_managed = wm.clients().any(|c| c.borrow().window() == event.window);
[INFO] [stdout]     |                                                    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/wm/x11/backend.rs:662:38
[INFO] [stdout]     |
[INFO] [stdout] 662 |         return wm.clients().find(|c| c.borrow().frame() == frame || c.borrow().title_window() == Some(frame)).cloned();
[INFO] [stdout]     |                                      ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/wm/x11/backend.rs:662:69
[INFO] [stdout]     |
[INFO] [stdout] 662 |         return wm.clients().find(|c| c.borrow().frame() == frame || c.borrow().title_window() == Some(frame)).cloned();
[INFO] [stdout]     |                                                                     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/wm/x11/backend.rs:666:38
[INFO] [stdout]     |
[INFO] [stdout] 666 |         return wm.clients().find(|c| c.borrow().window() == window).cloned();
[INFO] [stdout]     |                                      ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/wm/x11/backend.rs:696:57
[INFO] [stdout]     |
[INFO] [stdout] 696 |         let data_vec: Vec<u64> = clients.iter().map(|c| c.borrow().window()).collect();
[INFO] [stdout]     |                                                         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/wm/x11/backend.rs:697:73
[INFO] [stdout]     |
[INFO] [stdout] 697 |         let data_stacked_vec: Vec<u64> = clients_stacked.iter().map(|c| c.borrow().window()).collect();
[INFO] [stdout]     |                                                                         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libmars` (lib test) due to 11 previous errors
[INFO] running `Command { std: "docker" "inspect" "e4f98118b0ed9bc52a1be7a397abaa39383a9cc0dbd654d426883651060324d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4f98118b0ed9bc52a1be7a397abaa39383a9cc0dbd654d426883651060324d5", kill_on_drop: false }`
[INFO] [stdout] e4f98118b0ed9bc52a1be7a397abaa39383a9cc0dbd654d426883651060324d5