[INFO] fetching crate mergui 0.1.0-alpha0.8... [INFO] checking mergui-0.1.0-alpha0.8 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate mergui 0.1.0-alpha0.8 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate mergui 0.1.0-alpha0.8 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 mergui 0.1.0-alpha0.8 [INFO] finished tweaking crates.io crate mergui 0.1.0-alpha0.8 [INFO] tweaked toml for crates.io crate mergui 0.1.0-alpha0.8 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate crates.io crate mergui 0.1.0-alpha0.8 already has a lockfile, it will not be regenerated [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] 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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 92c99a6707cf160de043e5c94d9caafab09e559bbb4cb50ecabdca5fdcc341e8 [INFO] running `Command { std: "docker" "start" "-a" "92c99a6707cf160de043e5c94d9caafab09e559bbb4cb50ecabdca5fdcc341e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "92c99a6707cf160de043e5c94d9caafab09e559bbb4cb50ecabdca5fdcc341e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "92c99a6707cf160de043e5c94d9caafab09e559bbb4cb50ecabdca5fdcc341e8", kill_on_drop: false }` [INFO] [stdout] 92c99a6707cf160de043e5c94d9caafab09e559bbb4cb50ecabdca5fdcc341e8 [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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ae5e776cf5cc25e898398614c0480424e31cfcc87a0235b0e103f9308d8458fb [INFO] running `Command { std: "docker" "start" "-a" "ae5e776cf5cc25e898398614c0480424e31cfcc87a0235b0e103f9308d8458fb", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling xml-rs v0.8.3 [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling khronos_api v3.1.0 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Checking libloading v0.6.5 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Checking lazycell v1.3.0 [INFO] [stderr] Compiling syn v1.0.52 [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking downcast-rs v1.2.0 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Compiling crc32fast v1.2.1 [INFO] [stderr] Checking dlib v0.4.2 [INFO] [stderr] Checking smallvec v1.5.0 [INFO] [stderr] Checking wayland-sys v0.23.6 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Compiling cc v1.0.65 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking xdg v2.2.0 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Checking futures-core v0.3.8 [INFO] [stderr] Checking stb_truetype v0.3.1 [INFO] [stderr] Checking futures-task v0.3.8 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking deflate v0.7.20 [INFO] [stderr] Compiling x11-dl v2.18.5 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling gl_generator v0.14.0 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling gl_generator v0.13.1 [INFO] [stderr] Compiling hashbrown v0.7.2 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking instant v0.1.9 [INFO] [stderr] Checking percent-encoding v2.1.0 [INFO] [stderr] Checking net2 v0.2.36 [INFO] [stderr] Compiling wayland-scanner v0.23.6 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking parking_lot_core v0.7.2 [INFO] [stderr] Checking memmap v0.7.0 [INFO] [stderr] Checking shared_library v0.1.9 [INFO] [stderr] Checking raw-window-handle v0.3.3 [INFO] [stderr] Checking tinyvec_macros v0.1.0 [INFO] [stderr] Checking png v0.15.3 [INFO] [stderr] Checking mio v0.6.22 [INFO] [stderr] Checking osmesa-sys v0.1.2 [INFO] [stderr] Checking tinyvec v1.1.0 [INFO] [stderr] Checking jpeg-decoder v0.1.20 [INFO] [stderr] Checking ahash v0.3.8 [INFO] [stderr] Checking parking_lot v0.10.2 [INFO] [stderr] Compiling indexmap v1.6.0 [INFO] [stderr] Checking mint v0.5.6 [INFO] [stderr] Checking bytemuck v1.4.1 [INFO] [stderr] Checking hashbrown v0.9.1 [INFO] [stderr] Checking ordered-float v1.1.0 [INFO] [stderr] Checking approx v0.3.2 [INFO] [stderr] Checking line_drawing v0.7.0 [INFO] [stderr] Compiling libloading v0.5.2 [INFO] [stderr] Compiling glutin_glx_sys v0.1.7 [INFO] [stderr] Compiling glutin_egl_sys v0.1.5 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] Checking rusttype v0.8.3 [INFO] [stderr] Compiling glow v0.4.0 [INFO] [stderr] Checking unicode-normalization v0.1.16 [INFO] [stderr] Compiling wayland-client v0.23.6 [INFO] [stderr] Compiling wayland-protocols v0.23.6 [INFO] [stderr] Checking rusttype v0.7.9 [INFO] [stderr] Checking andrew v0.2.1 [INFO] [stderr] Checking image v0.22.5 [INFO] [stderr] Checking elefont v0.1.3 [INFO] [stderr] Checking calloop v0.4.4 [INFO] [stderr] Checking wayland-commons v0.23.6 [INFO] [stderr] Checking golem v0.1.7 [INFO] [stderr] Compiling pin-project-internal v1.0.2 [INFO] [stderr] Checking pin-project v1.0.2 [INFO] [stderr] Checking futures-util v0.3.8 [INFO] [stderr] Checking futures-executor v0.3.8 [INFO] [stderr] Checking platter v0.1.4 [INFO] [stderr] Checking smithay-client-toolkit v0.6.6 [INFO] [stderr] Checking winit v0.22.2 [INFO] [stderr] Checking glutin v0.24.1 [INFO] [stderr] Checking blinds v0.1.6 [INFO] [stderr] Checking quicksilver v0.4.0 [INFO] [stderr] Checking mergui v0.1.0-alpha0.8 (/opt/rustwide/workdir) [INFO] [stdout] warning: this function depends on never type fallback being `()` [INFO] [stdout] --> src/widgets/dropdown.rs:148:5 [INFO] [stdout] | [INFO] [stdout] 148 | fn render(&mut self, gfx: &mut Graphics, _: &Window) -> Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #123748 [INFO] [stdout] = help: specify the types explicitly [INFO] [stdout] note: in edition 2024, the requirement `!: FromIterator<()>` will fail [INFO] [stdout] --> src/widgets/dropdown.rs:207:28 [INFO] [stdout] | [INFO] [stdout] 207 | .collect::>()?; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this function depends on never type fallback being `()` [INFO] [stdout] --> src/widgets/dropdown.rs:148:5 [INFO] [stdout] | [INFO] [stdout] 148 | fn render(&mut self, gfx: &mut Graphics, _: &Window) -> Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #123748 [INFO] [stdout] = help: specify the types explicitly [INFO] [stdout] note: in edition 2024, the requirement `!: FromIterator<()>` will fail [INFO] [stdout] --> src/widgets/dropdown.rs:207:28 [INFO] [stdout] | [INFO] [stdout] 207 | .collect::>()?; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `(ImageButton, BasicClickable)` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/widgets/button.rs:44:29 [INFO] [stdout] | [INFO] [stdout] 39 | fn to_widget(mut self) -> (Button, Clickable) { [INFO] [stdout] | -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 44 | background: ImageButtonConfig { [INFO] [stdout] | _____________________________^ [INFO] [stdout] 45 | | image: self.background, [INFO] [stdout] 46 | | location: self.background_location, [INFO] [stdout] 47 | | color: self.blend_color, [INFO] [stdout] 48 | | hover_color: self.hover_color, [INFO] [stdout] 49 | | } [INFO] [stdout] 50 | | .to_widget() [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 `(ImageButton, BasicClickable)` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/widgets/button.rs:44:29 [INFO] [stdout] | [INFO] [stdout] 39 | fn to_widget(mut self) -> (Button, Clickable) { [INFO] [stdout] | -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 44 | background: ImageButtonConfig { [INFO] [stdout] | _____________________________^ [INFO] [stdout] 45 | | image: self.background, [INFO] [stdout] 46 | | location: self.background_location, [INFO] [stdout] 47 | | color: self.blend_color, [INFO] [stdout] 48 | | hover_color: self.hover_color, [INFO] [stdout] 49 | | } [INFO] [stdout] 50 | | .to_widget() [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; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `mergui` (lib) due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `mergui` (lib test) due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "ae5e776cf5cc25e898398614c0480424e31cfcc87a0235b0e103f9308d8458fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ae5e776cf5cc25e898398614c0480424e31cfcc87a0235b0e103f9308d8458fb", kill_on_drop: false }` [INFO] [stdout] ae5e776cf5cc25e898398614c0480424e31cfcc87a0235b0e103f9308d8458fb