[INFO] fetching crate flate2-expose 1.0.25...
[INFO] checking flate2-expose-1.0.25 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate flate2-expose 1.0.25 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate flate2-expose 1.0.25 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 flate2-expose 1.0.25
[INFO] finished tweaking crates.io crate flate2-expose 1.0.25
[INFO] tweaked toml for crates.io crate flate2-expose 1.0.25 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate flate2-expose 1.0.25 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51d6eb6e51040db667bff5b478a95bd2bdfbbde9fb16d1fbb07b8b732ae5d037
[INFO] running `Command { std: "docker" "start" "-a" "51d6eb6e51040db667bff5b478a95bd2bdfbbde9fb16d1fbb07b8b732ae5d037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51d6eb6e51040db667bff5b478a95bd2bdfbbde9fb16d1fbb07b8b732ae5d037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51d6eb6e51040db667bff5b478a95bd2bdfbbde9fb16d1fbb07b8b732ae5d037", kill_on_drop: false }`
[INFO] [stdout] 51d6eb6e51040db667bff5b478a95bd2bdfbbde9fb16d1fbb07b8b732ae5d037
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 379cb3cb2e245b8b739bf900b466042053da075cd9fc5cf0ea7fdf047e1ac29b
[INFO] running `Command { std: "docker" "start" "-a" "379cb3cb2e245b8b739bf900b466042053da075cd9fc5cf0ea7fdf047e1ac29b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking flate2-expose v1.0.25 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stdout] error: this value of type `Result<usize, std::io::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/gz/mod.rs:376:15
[INFO] [stdout]     |
[INFO] [stdout] 374 |         let mut decoder = read::GzDecoder::new(r);
[INFO] [stdout]     |             ----------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 375 |         let mut out = Vec::with_capacity(7);
[INFO] [stdout] 376 |         match decoder.read(&mut out) {
[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 `Result<(), std::io::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/zlib/mod.rs:127:15
[INFO] [stdout]     |
[INFO] [stdout] 126 |         let mut w = write::ZlibDecoder::new(&mut out);
[INFO] [stdout]     |             ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 127 |         match w.write_all(&data[..]) {
[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 `flate2-expose` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "379cb3cb2e245b8b739bf900b466042053da075cd9fc5cf0ea7fdf047e1ac29b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "379cb3cb2e245b8b739bf900b466042053da075cd9fc5cf0ea7fdf047e1ac29b", kill_on_drop: false }`
[INFO] [stdout] 379cb3cb2e245b8b739bf900b466042053da075cd9fc5cf0ea7fdf047e1ac29b