[INFO] fetching crate switcher2 0.1.0... [INFO] checking switcher2-0.1.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate switcher2 0.1.0 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate switcher2 0.1.0 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 switcher2 0.1.0 [INFO] finished tweaking crates.io crate switcher2 0.1.0 [INFO] tweaked toml for crates.io crate switcher2 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate crates.io crate switcher2 0.1.0 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-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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 89f01f6ad4632f7f0e222bea8027e6fd6d5c2c16f02d94923801fe9a219cea66 [INFO] running `Command { std: "docker" "start" "-a" "89f01f6ad4632f7f0e222bea8027e6fd6d5c2c16f02d94923801fe9a219cea66", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "89f01f6ad4632f7f0e222bea8027e6fd6d5c2c16f02d94923801fe9a219cea66", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "89f01f6ad4632f7f0e222bea8027e6fd6d5c2c16f02d94923801fe9a219cea66", kill_on_drop: false }` [INFO] [stdout] 89f01f6ad4632f7f0e222bea8027e6fd6d5c2c16f02d94923801fe9a219cea66 [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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 00b28d94410f82424d0c24f6ab05f3eb9f9afe93f355360e71d9e987608728aa [INFO] running `Command { std: "docker" "start" "-a" "00b28d94410f82424d0c24f6ab05f3eb9f9afe93f355360e71d9e987608728aa", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.144 [INFO] [stderr] Compiling libc v0.2.132 [INFO] [stderr] Compiling crossbeam-utils v0.8.11 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Checking once_cell v1.13.1 [INFO] [stderr] Compiling crossbeam-epoch v0.9.10 [INFO] [stderr] Compiling proc-macro2 v1.0.43 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling unicode-ident v1.0.3 [INFO] [stderr] Compiling rayon-core v1.9.3 [INFO] [stderr] Compiling quote v1.0.21 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling serde_json v1.0.85 [INFO] [stderr] Checking ryu v1.0.11 [INFO] [stderr] Compiling syn v1.0.99 [INFO] [stderr] Checking either v1.8.0 [INFO] [stderr] Compiling rayon v1.5.3 [INFO] [stderr] Checking itoa v1.0.3 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Compiling serde_derive v1.0.144 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking plotters-backend v0.3.4 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Checking itertools v0.10.3 [INFO] [stderr] Checking cast v0.3.0 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking half v1.8.2 [INFO] [stderr] Checking regex-syntax v0.6.27 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking plotters-svg v0.3.3 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking crossbeam-channel v0.5.6 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking switcher2 v0.1.0 (/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/lib.rs:131:20 [INFO] [stdout] | [INFO] [stdout] 78 | pub fn new(stack: Stack, f: F) -> Generator<'a, Input, Output, Stack> [INFO] [stdout] | ------------ ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 131 | stack: Some(stack), [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/lib.rs:186:9 [INFO] [stdout] | [INFO] [stdout] 185 | pub fn stack(mut self) -> Stack { [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 186 | self.stack.take().unwrap() [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `switcher2` (lib) due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "00b28d94410f82424d0c24f6ab05f3eb9f9afe93f355360e71d9e987608728aa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "00b28d94410f82424d0c24f6ab05f3eb9f9afe93f355360e71d9e987608728aa", kill_on_drop: false }` [INFO] [stdout] 00b28d94410f82424d0c24f6ab05f3eb9f9afe93f355360e71d9e987608728aa