[INFO] fetching crate serde_db 0.11.1... [INFO] checking serde_db-0.11.1 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate serde_db 0.11.1 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate serde_db 0.11.1 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 serde_db 0.11.1 [INFO] finished tweaking crates.io crate serde_db 0.11.1 [INFO] tweaked toml for crates.io crate serde_db 0.11.1 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 79 packages to latest compatible versions [INFO] [stderr] Adding bigdecimal v0.3.1 (available: v0.4.5) [INFO] [stderr] Adding flexi_logger v0.24.2 (available: v0.29.0) [INFO] [stderr] Adding hermit-abi v0.1.19 (available: v0.4.0) [INFO] [stderr] Adding idna v0.5.0 (available: v1.0.2) [INFO] [stderr] Adding nu-ansi-term v0.46.0 (available: v0.50.1) [INFO] [stderr] Adding pulldown-cmark v0.9.6 (available: v0.12.1) [INFO] [stderr] Adding toml v0.7.8 (available: v0.8.19) [INFO] [stderr] Adding toml_edit v0.19.15 (available: v0.22.22) [INFO] [stderr] Adding windows-core v0.52.0 (available: v0.58.0) [INFO] [stderr] Adding winnow v0.5.40 (available: v0.6.20) [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] [stderr] Blocking waiting for file lock on package cache [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] 42366cd3c2cc10ee392529eda4903baee9cd1341569aa5a7443172ba1b9ec194 [INFO] running `Command { std: "docker" "start" "-a" "42366cd3c2cc10ee392529eda4903baee9cd1341569aa5a7443172ba1b9ec194", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "42366cd3c2cc10ee392529eda4903baee9cd1341569aa5a7443172ba1b9ec194", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42366cd3c2cc10ee392529eda4903baee9cd1341569aa5a7443172ba1b9ec194", kill_on_drop: false }` [INFO] [stdout] 42366cd3c2cc10ee392529eda4903baee9cd1341569aa5a7443172ba1b9ec194 [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] 5e77f221016f40ecdad68a46ccd8534cf97bcda1750955b582f105c144129417 [INFO] running `Command { std: "docker" "start" "-a" "5e77f221016f40ecdad68a46ccd8534cf97bcda1750955b582f105c144129417", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Checking unicode-ident v1.0.13 [INFO] [stderr] Checking winnow v0.5.40 [INFO] [stderr] Compiling unicase v2.7.0 [INFO] [stderr] Compiling pulldown-cmark v0.9.6 [INFO] [stderr] Checking glob v0.3.1 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking chrono v0.4.38 [INFO] [stderr] Checking serde_db v0.11.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/de/row_deserializer.rs:219:27 [INFO] [stdout] | [INFO] [stdout] 219 | fn deserialize_seq(mut self, visitor: V) -> DeserializationResult [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/de/row_deserializer.rs:289:9 [INFO] [stdout] | [INFO] [stdout] 289 | mut self, [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/de/row_deserializer.rs:325:29 [INFO] [stdout] | [INFO] [stdout] 325 | fn deserialize_tuple(mut self, _len: usize, visitor: V) -> DeserializationResult [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `std::option::Option<::V>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/de/row_deserializer.rs:502:15 [INFO] [stdout] | [INFO] [stdout] 496 | fn next_element_seed(&mut self, seed: T) -> Result, Self::Error> [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 502 | match self.de.row.next() { [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] warning: variable does not need to be mutable [INFO] [stdout] --> src/de/rs_deserializer.rs:237:27 [INFO] [stdout] | [INFO] [stdout] 237 | fn deserialize_seq(mut self, visitor: V) -> DeserializationResult [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `std::option::Option<::ROW>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/de/rs_deserializer.rs:410:15 [INFO] [stdout] | [INFO] [stdout] 404 | fn next_element_seed(&mut self, seed: T) -> Result, Self::Error> [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 410 | match self.de.rs.next()? { [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] [stderr] Checking num-bigint v0.4.6 [INFO] [stdout] error: aborting due to 2 previous errors; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `serde_db` (lib) due to 3 previous errors; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "5e77f221016f40ecdad68a46ccd8534cf97bcda1750955b582f105c144129417", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5e77f221016f40ecdad68a46ccd8534cf97bcda1750955b582f105c144129417", kill_on_drop: false }` [INFO] [stdout] 5e77f221016f40ecdad68a46ccd8534cf97bcda1750955b582f105c144129417