[INFO] fetching crate recstrm 0.0.1...
[INFO] checking recstrm-0.0.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate recstrm 0.0.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate recstrm 0.0.1 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate recstrm 0.0.1
[INFO] finished tweaking crates.io crate recstrm 0.0.1
[INFO] tweaked toml for crates.io crate recstrm 0.0.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 42 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a07acd9d29b7ee16cca1ef9b9edcc9e7f1cddaa47eb95e83e3c7ef795ef0e43a
[INFO] running `Command { std: "docker" "start" "-a" "a07acd9d29b7ee16cca1ef9b9edcc9e7f1cddaa47eb95e83e3c7ef795ef0e43a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a07acd9d29b7ee16cca1ef9b9edcc9e7f1cddaa47eb95e83e3c7ef795ef0e43a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a07acd9d29b7ee16cca1ef9b9edcc9e7f1cddaa47eb95e83e3c7ef795ef0e43a", kill_on_drop: false }`
[INFO] [stdout] a07acd9d29b7ee16cca1ef9b9edcc9e7f1cddaa47eb95e83e3c7ef795ef0e43a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ea7cfa67aad3d479d305339441cd5401f178ab607368c02a0b5ca51b5e00a3b
[INFO] running `Command { std: "docker" "start" "-a" "5ea7cfa67aad3d479d305339441cd5401f178ab607368c02a0b5ca51b5e00a3b", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking recstrm v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this value of type `Option<T>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/recv.rs:167:22
[INFO] [stdout]     |
[INFO] [stdout] 163 |     let mut inner = self.lock_inner();
[INFO] [stdout]     |         --------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 167 |     if let Some(n) = inner.q.pop_front() {
[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: this value of type `Option<T>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/recv.rs:236:22
[INFO] [stdout]     |
[INFO] [stdout] 230 |     let mut inner = self.0.lock_inner();
[INFO] [stdout]     |         --------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 236 |     if let Some(n) = inner.q.pop_front() {
[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 `recstrm` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5ea7cfa67aad3d479d305339441cd5401f178ab607368c02a0b5ca51b5e00a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ea7cfa67aad3d479d305339441cd5401f178ab607368c02a0b5ca51b5e00a3b", kill_on_drop: false }`
[INFO] [stdout] 5ea7cfa67aad3d479d305339441cd5401f178ab607368c02a0b5ca51b5e00a3b