[INFO] fetching crate modbus 1.1.0... [INFO] checking modbus-1.1.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate modbus 1.1.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate modbus 1.1.0 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 modbus 1.1.0 [INFO] finished tweaking crates.io crate modbus 1.1.0 [INFO] tweaked toml for crates.io crate modbus 1.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate crates.io crate modbus 1.1.0 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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1cc8c7e75b7e24511bbfe4857d7b5563cef2cfbd2758bfffa45720dcb2b24f5b [INFO] running `Command { std: "docker" "start" "-a" "1cc8c7e75b7e24511bbfe4857d7b5563cef2cfbd2758bfffa45720dcb2b24f5b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1cc8c7e75b7e24511bbfe4857d7b5563cef2cfbd2758bfffa45720dcb2b24f5b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1cc8c7e75b7e24511bbfe4857d7b5563cef2cfbd2758bfffa45720dcb2b24f5b", kill_on_drop: false }` [INFO] [stdout] 1cc8c7e75b7e24511bbfe4857d7b5563cef2cfbd2758bfffa45720dcb2b24f5b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 40613c605b46880341f978a54901079eafdd3e7f70cdd57a4d9b3724255d6d03 [INFO] running `Command { std: "docker" "start" "-a" "40613c605b46880341f978a54901079eafdd3e7f70cdd57a4d9b3724255d6d03", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling libc v0.2.151 [INFO] [stderr] Checking unicode-width v0.1.11 [INFO] [stderr] Compiling modbus-test-server v0.0.4 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling num-traits v0.2.17 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking enum_primitive v0.1.1 [INFO] [stderr] Checking modbus v1.1.0 (/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/tcp.rs:156:15 [INFO] [stdout] | [INFO] [stdout] 156 | match self.stream.write_all(&buff) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #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/tcp.rs:300:15 [INFO] [stdout] | [INFO] [stdout] 300 | match self.stream.write_all(buff) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `modbus` (lib) due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "40613c605b46880341f978a54901079eafdd3e7f70cdd57a4d9b3724255d6d03", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "40613c605b46880341f978a54901079eafdd3e7f70cdd57a4d9b3724255d6d03", kill_on_drop: false }` [INFO] [stdout] 40613c605b46880341f978a54901079eafdd3e7f70cdd57a4d9b3724255d6d03