[INFO] fetching crate rcbytes 1.2.2...
[INFO] checking rcbytes-1.2.2 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] extracting crate rcbytes 1.2.2 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate rcbytes 1.2.2 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 rcbytes 1.2.2
[INFO] finished tweaking crates.io crate rcbytes 1.2.2
[INFO] tweaked toml for crates.io crate rcbytes 1.2.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 57eb76b43a71e837d60d6eb4c68e1de8e022b57d073526d54ca94e00fafe765e
[INFO] running `Command { std: "docker" "start" "-a" "57eb76b43a71e837d60d6eb4c68e1de8e022b57d073526d54ca94e00fafe765e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57eb76b43a71e837d60d6eb4c68e1de8e022b57d073526d54ca94e00fafe765e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57eb76b43a71e837d60d6eb4c68e1de8e022b57d073526d54ca94e00fafe765e", kill_on_drop: false }`
[INFO] [stdout] 57eb76b43a71e837d60d6eb4c68e1de8e022b57d073526d54ca94e00fafe765e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 4e665aade26abc4f29fbddd94aa85d2d757e831bb01a0c6e3885a0622fe111f7
[INFO] running `Command { std: "docker" "start" "-a" "4e665aade26abc4f29fbddd94aa85d2d757e831bb01a0c6e3885a0622fe111f7", kill_on_drop: false }`
[INFO] [stderr]     Checking rcbytes v1.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_test v1.0.177
[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/bytes_mut.rs:1285:21
[INFO] [stdout]      |
[INFO] [stdout] 1281 |     fn extend<T>(&mut self, iter: T)
[INFO] [stdout]      |                             ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 1285 |         self.extend(iter.into_iter().copied())
[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/bytes_mut.rs:1308:29
[INFO] [stdout]      |
[INFO] [stdout] 1307 |     fn from_iter<T: IntoIterator<Item = &'a u8>>(into_iter: T) -> Self {
[INFO] [stdout]      |                                                  ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 1308 |         BytesMut::from_iter(into_iter.into_iter().copied())
[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 `rcbytes` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4e665aade26abc4f29fbddd94aa85d2d757e831bb01a0c6e3885a0622fe111f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e665aade26abc4f29fbddd94aa85d2d757e831bb01a0c6e3885a0622fe111f7", kill_on_drop: false }`
[INFO] [stdout] 4e665aade26abc4f29fbddd94aa85d2d757e831bb01a0c6e3885a0622fe111f7