[INFO] fetching crate tower 0.5.0... [INFO] checking tower-0.5.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate tower 0.5.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate tower 0.5.0 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 tower 0.5.0 [INFO] removed 0 missing examples [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate tower 0.5.0 [INFO] tweaked toml for crates.io crate tower 0.5.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate crates.io crate tower 0.5.0 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 27b20b9799c17d38e74354df0ddd11c11a52477e17f01b7a6a6a20801d5670df [INFO] running `Command { std: "docker" "start" "-a" "27b20b9799c17d38e74354df0ddd11c11a52477e17f01b7a6a6a20801d5670df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "27b20b9799c17d38e74354df0ddd11c11a52477e17f01b7a6a6a20801d5670df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "27b20b9799c17d38e74354df0ddd11c11a52477e17f01b7a6a6a20801d5670df", kill_on_drop: false }` [INFO] [stdout] 27b20b9799c17d38e74354df0ddd11c11a52477e17f01b7a6a6a20801d5670df [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d6756f69187bc8768143e7b204eb0e7fff523ae85002076a16d99b53fff26284 [INFO] running `Command { std: "docker" "start" "-a" "d6756f69187bc8768143e7b204eb0e7fff523ae85002076a16d99b53fff26284", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.155 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking regex-syntax v0.8.4 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking tokio v1.39.2 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling async-stream-impl v0.3.5 [INFO] [stderr] Checking overload v0.1.1 [INFO] [stderr] Checking nu-ansi-term v0.46.0 [INFO] [stderr] Checking zerocopy v0.7.35 [INFO] [stderr] Checking tracing-subscriber v0.3.18 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking async-stream v0.3.5 [INFO] [stderr] Checking tower v0.5.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait `Sealed` is never used [INFO] [stdout] --> src/lib.rs:223:15 [INFO] [stdout] | [INFO] [stdout] 223 | pub trait Sealed {} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [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/builder/mod.rs:134:20 [INFO] [stdout] | [INFO] [stdout] 132 | pub fn layer(self, layer: T) -> ServiceBuilder> { [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] 133 | ServiceBuilder { [INFO] [stdout] 134 | layer: Stack::new(layer, self.layer), [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/builder/mod.rs:168:20 [INFO] [stdout] | [INFO] [stdout] 167 | pub fn layer_fn(self, f: F) -> ServiceBuilder, L>> { [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] 168 | self.layer(crate::layer::layer_fn(f)) [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; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `tower` (lib) due to 3 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "d6756f69187bc8768143e7b204eb0e7fff523ae85002076a16d99b53fff26284", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d6756f69187bc8768143e7b204eb0e7fff523ae85002076a16d99b53fff26284", kill_on_drop: false }` [INFO] [stdout] d6756f69187bc8768143e7b204eb0e7fff523ae85002076a16d99b53fff26284