[INFO] fetching crate dawg 0.0.5...
[INFO] checking dawg-0.0.5 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] extracting crate dawg 0.0.5 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate dawg 0.0.5 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 dawg 0.0.5
[INFO] finished tweaking crates.io crate dawg 0.0.5
[INFO] tweaked toml for crates.io crate dawg 0.0.5 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate dawg 0.0.5 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 052ea7441b37beef37b55c27117ed2c06df101d4d7701adb4c325ef0f6273486
[INFO] running `Command { std: "docker" "start" "-a" "052ea7441b37beef37b55c27117ed2c06df101d4d7701adb4c325ef0f6273486", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "052ea7441b37beef37b55c27117ed2c06df101d4d7701adb4c325ef0f6273486", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "052ea7441b37beef37b55c27117ed2c06df101d4d7701adb4c325ef0f6273486", kill_on_drop: false }`
[INFO] [stdout] 052ea7441b37beef37b55c27117ed2c06df101d4d7701adb4c325ef0f6273486
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 64e5402ebd377535c657d3f54f59f3781bbc77e1c707a0be2a03d7e17f16bd36
[INFO] running `Command { std: "docker" "start" "-a" "64e5402ebd377535c657d3f54f59f3781bbc77e1c707a0be2a03d7e17f16bd36", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]     Checking dawg v0.0.5 (/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/dawg/dawg.rs:310:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |         let mut words: HashSet<String> = HashSet::new();
[INFO] [stdout]     |                 ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 310 |         words.into_iter().collect()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/dawg/dawg.rs:355:9
[INFO] [stdout]     |
[INFO] [stdout] 326 |     fn word_generator(&self, extend: impl AsRef<str>, letters: &Vec<&str>) -> Vec<String> {
[INFO] [stdout]     |                              ----------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 327 |         let mut words: HashSet<String> = HashSet::new();
[INFO] [stdout]     |                 ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 355 |         words.into_iter().collect()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dawg` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/dawg/dawg.rs:310:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |         let mut words: HashSet<String> = HashSet::new();
[INFO] [stdout]     |                 ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 310 |         words.into_iter().collect()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/dawg/dawg.rs:355:9
[INFO] [stdout]     |
[INFO] [stdout] 326 |     fn word_generator(&self, extend: impl AsRef<str>, letters: &Vec<&str>) -> Vec<String> {
[INFO] [stdout]     |                              ----------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 327 |         let mut words: HashSet<String> = HashSet::new();
[INFO] [stdout]     |                 ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 355 |         words.into_iter().collect()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dawg` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "64e5402ebd377535c657d3f54f59f3781bbc77e1c707a0be2a03d7e17f16bd36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64e5402ebd377535c657d3f54f59f3781bbc77e1c707a0be2a03d7e17f16bd36", kill_on_drop: false }`
[INFO] [stdout] 64e5402ebd377535c657d3f54f59f3781bbc77e1c707a0be2a03d7e17f16bd36