[INFO] fetching crate kmon 1.6.5... [INFO] checking kmon-1.6.5 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate kmon 1.6.5 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate kmon 1.6.5 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 kmon 1.6.5 [INFO] finished tweaking crates.io crate kmon 1.6.5 [INFO] tweaked toml for crates.io crate kmon 1.6.5 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate crates.io crate kmon 1.6.5 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 986a38ac6a1e106b37bd2c31850cf93ae4ab3e136a6899f815dcd37c253b1649 [INFO] running `Command { std: "docker" "start" "-a" "986a38ac6a1e106b37bd2c31850cf93ae4ab3e136a6899f815dcd37c253b1649", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "986a38ac6a1e106b37bd2c31850cf93ae4ab3e136a6899f815dcd37c253b1649", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "986a38ac6a1e106b37bd2c31850cf93ae4ab3e136a6899f815dcd37c253b1649", kill_on_drop: false }` [INFO] [stdout] 986a38ac6a1e106b37bd2c31850cf93ae4ab3e136a6899f815dcd37c253b1649 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2b4fc6a8eeaf89d09b65856f96e73fcbd3388a718a4972b83ecb636ab501b77c [INFO] running `Command { std: "docker" "start" "-a" "2b4fc6a8eeaf89d09b65856f96e73fcbd3388a718a4972b83ecb636ab501b77c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Compiling autocfg v1.2.0 [INFO] [stderr] Compiling xml-rs v0.8.20 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling rustversion v1.0.15 [INFO] [stderr] Checking once_cell v1.19.0 [INFO] [stderr] Compiling rustix v0.38.32 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling wayland-sys v0.29.5 [INFO] [stderr] Compiling ahash v0.8.11 [INFO] [stderr] Compiling smithay-client-toolkit v0.16.1 [INFO] [stderr] Checking libloading v0.8.3 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking scoped-tls v1.0.1 [INFO] [stderr] Checking downcast-rs v1.2.1 [INFO] [stderr] Checking dlib v0.5.2 [INFO] [stderr] Compiling paste v1.0.14 [INFO] [stderr] Checking xcursor v0.3.5 [INFO] [stderr] Compiling copypasta-ext v0.4.4 [INFO] [stderr] Checking log v0.4.21 [INFO] [stderr] Checking zerocopy v0.7.32 [INFO] [stderr] Checking either v1.10.0 [INFO] [stderr] Checking bitflags v2.5.0 [INFO] [stderr] Checking linux-raw-sys v0.4.13 [INFO] [stderr] Checking utf8parse v0.2.1 [INFO] [stderr] Checking allocator-api2 v0.2.16 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Checking anstyle-query v1.0.2 [INFO] [stderr] Checking anstyle-parse v0.2.3 [INFO] [stderr] Checking colorchoice v1.0.0 [INFO] [stderr] Checking home v0.5.9 [INFO] [stderr] Checking numtoa v0.1.0 [INFO] [stderr] Checking static_assertions v1.1.0 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Checking anstyle v1.0.6 [INFO] [stderr] Checking itertools v0.12.1 [INFO] [stderr] Checking ryu v1.0.17 [INFO] [stderr] Checking unicode-width v0.1.11 [INFO] [stderr] Checking hashbrown v0.14.3 [INFO] [stderr] Compiling wayland-scanner v0.29.5 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Checking anstream v0.6.13 [INFO] [stderr] Checking castaway v0.2.2 [INFO] [stderr] Checking clap_lex v0.7.0 [INFO] [stderr] Checking compact_str v0.7.1 [INFO] [stderr] Checking unicode-segmentation v1.11.0 [INFO] [stderr] Checking nix v0.24.3 [INFO] [stderr] Checking memmap2 v0.5.10 [INFO] [stderr] Checking gethostname v0.2.3 [INFO] [stderr] Checking termion v3.0.0 [INFO] [stderr] Checking cassowary v0.3.0 [INFO] [stderr] Checking itoa v1.0.11 [INFO] [stderr] Checking strsim v0.11.1 [INFO] [stderr] Checking clap v4.5.4 [INFO] [stderr] Checking lru v0.12.3 [INFO] [stderr] Checking clap_builder v4.5.2 [INFO] [stderr] Checking colorsys v0.6.7 [INFO] [stderr] Checking bytesize v1.3.0 [INFO] [stderr] Compiling wayland-client v0.29.5 [INFO] [stderr] Compiling wayland-protocols v0.29.5 [INFO] [stderr] Checking which v4.4.2 [INFO] [stderr] Compiling strum_macros v0.26.2 [INFO] [stderr] Compiling enum-iterator-derive v1.3.0 [INFO] [stderr] Checking wayland-commons v0.29.5 [INFO] [stderr] Checking x11rb-protocol v0.10.0 [INFO] [stderr] Checking enum-iterator v2.0.0 [INFO] [stderr] Compiling stability v0.1.1 [INFO] [stderr] Checking strum v0.26.2 [INFO] [stderr] Checking ratatui v0.26.1 [INFO] [stderr] Checking wayland-cursor v0.29.5 [INFO] [stderr] Checking x11rb v0.10.1 [INFO] [stderr] Checking x11-clipboard v0.7.1 [INFO] [stderr] Checking smithay-clipboard v0.6.6 [INFO] [stderr] Checking copypasta v0.8.2 [INFO] [stderr] Checking kmon v1.6.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/kernel/lkm.rs:408:4 [INFO] [stdout] | [INFO] [stdout] 408 | kernel_modules.refresh(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 408 | let _ = kernel_modules.refresh(); [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/lib.rs:646:13 [INFO] [stdout] | [INFO] [stdout] 570 | let args = ArgMatches::default(); [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 571 | let kernel = Kernel::new(&args); [INFO] [stdout] 572 | let events = Events::new(100, &kernel.logs); [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 573 | let tx = events.tx.clone(); [INFO] [stdout] | -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 646 | start_tui(Terminal::new(TestBackend::new(20, 10))?, kernel, &events) [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 `kmon` (lib test) due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "2b4fc6a8eeaf89d09b65856f96e73fcbd3388a718a4972b83ecb636ab501b77c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2b4fc6a8eeaf89d09b65856f96e73fcbd3388a718a4972b83ecb636ab501b77c", kill_on_drop: false }` [INFO] [stdout] 2b4fc6a8eeaf89d09b65856f96e73fcbd3388a718a4972b83ecb636ab501b77c