[INFO] fetching crate mqtt_packet_3_5 0.2.2...
[INFO] checking mqtt_packet_3_5-0.2.2 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] extracting crate mqtt_packet_3_5 0.2.2 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate mqtt_packet_3_5 0.2.2 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 mqtt_packet_3_5 0.2.2
[INFO] finished tweaking crates.io crate mqtt_packet_3_5 0.2.2
[INFO] tweaked toml for crates.io crate mqtt_packet_3_5 0.2.2 written to /workspace/builds/worker-7-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 7 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] [stderr]     Blocking waiting for file lock on package cache
[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] 9c170ef14c2d2c5b3e3cacacf5085a890d92904de9ea87189448c042d6055588
[INFO] running `Command { std: "docker" "start" "-a" "9c170ef14c2d2c5b3e3cacacf5085a890d92904de9ea87189448c042d6055588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c170ef14c2d2c5b3e3cacacf5085a890d92904de9ea87189448c042d6055588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c170ef14c2d2c5b3e3cacacf5085a890d92904de9ea87189448c042d6055588", kill_on_drop: false }`
[INFO] [stdout] 9c170ef14c2d2c5b3e3cacacf5085a890d92904de9ea87189448c042d6055588
[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] 751a76c4fbacd2b0e67043d58876e054bf247343d79924823f1ff00ec534ed8d
[INFO] running `Command { std: "docker" "start" "-a" "751a76c4fbacd2b0e67043d58876e054bf247343d79924823f1ff00ec534ed8d", kill_on_drop: false }`
[INFO] [stderr]     Checking mqtt_packet_3_5 v0.2.2 (/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/packet.rs:115:28
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn from_stream(src: R) -> PacketDecoder<R> {
[INFO] [stdout]     |                        ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 115 |         PacketDecoder::new(ByteReader::new(io::BufReader::new(src)))
[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/packet.rs:133:28
[INFO] [stdout]     |
[INFO] [stdout] 132 |     pub fn from_bufreader(buf: io::BufReader<R>) -> PacketDecoder<R> {
[INFO] [stdout]     |                           --------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 133 |         PacketDecoder::new(ByteReader::new(buf))
[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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/packet.rs:115:28
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn from_stream(src: R) -> PacketDecoder<R> {
[INFO] [stdout]     |                        ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 115 |         PacketDecoder::new(ByteReader::new(io::BufReader::new(src)))
[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/packet.rs:133:28
[INFO] [stdout]     |
[INFO] [stdout] 132 |     pub fn from_bufreader(buf: io::BufReader<R>) -> PacketDecoder<R> {
[INFO] [stdout]     |                           --------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 133 |         PacketDecoder::new(ByteReader::new(buf))
[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] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mqtt_packet_3_5` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `mqtt_packet_3_5` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "751a76c4fbacd2b0e67043d58876e054bf247343d79924823f1ff00ec534ed8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "751a76c4fbacd2b0e67043d58876e054bf247343d79924823f1ff00ec534ed8d", kill_on_drop: false }`
[INFO] [stdout] 751a76c4fbacd2b0e67043d58876e054bf247343d79924823f1ff00ec534ed8d