[INFO] fetching crate rust_dmx 0.5.0... [INFO] checking rust_dmx-0.5.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate rust_dmx 0.5.0 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate rust_dmx 0.5.0 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 rust_dmx 0.5.0 [INFO] finished tweaking crates.io crate rust_dmx 0.5.0 [INFO] tweaked toml for crates.io crate rust_dmx 0.5.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate crates.io crate rust_dmx 0.5.0 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] Blocking waiting for file lock on package cache [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] 17e856535af6574c65d91de96a61070de2cabf3e68b102ed13af083af4430a0a [INFO] running `Command { std: "docker" "start" "-a" "17e856535af6574c65d91de96a61070de2cabf3e68b102ed13af083af4430a0a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "17e856535af6574c65d91de96a61070de2cabf3e68b102ed13af083af4430a0a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "17e856535af6574c65d91de96a61070de2cabf3e68b102ed13af083af4430a0a", kill_on_drop: false }` [INFO] [stdout] 17e856535af6574c65d91de96a61070de2cabf3e68b102ed13af083af4430a0a [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] 980bcb7141ae867de84285c3eaf1d971b60e41fe34e012525fecce3b7e2ff420 [INFO] running `Command { std: "docker" "start" "-a" "980bcb7141ae867de84285c3eaf1d971b60e41fe34e012525fecce3b7e2ff420", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.69 [INFO] [stderr] Compiling libc v0.2.149 [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling serde v1.0.189 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling thiserror v1.0.49 [INFO] [stderr] Compiling anyhow v1.0.75 [INFO] [stderr] Checking bitflags v2.0.2 [INFO] [stderr] Checking inventory v0.3.12 [INFO] [stderr] Checking once_cell v1.18.0 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking log v0.4.20 [INFO] [stderr] Compiling libudev-sys v0.1.4 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling syn v2.0.38 [INFO] [stderr] Checking nix v0.26.4 [INFO] [stderr] Checking libudev v0.3.0 [INFO] [stderr] Checking serialport v4.2.2 [INFO] [stderr] Compiling derive_more v0.99.13 [INFO] [stderr] Compiling serde_derive v1.0.189 [INFO] [stderr] Compiling thiserror-impl v1.0.49 [INFO] [stderr] Compiling typetag-impl v0.2.13 [INFO] [stderr] Checking erased-serde v0.3.31 [INFO] [stderr] Checking typetag v0.2.13 [INFO] [stderr] Checking rust_dmx v0.5.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/enttec.rs:266:13 [INFO] [stdout] | [INFO] [stdout] 266 | UsbPort(UsbPortInfo), [INFO] [stdout] | ------- ^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 266 | UsbPort(()), [INFO] [stdout] | ~~ [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/enttec.rs:133:25 [INFO] [stdout] | [INFO] [stdout] 133 | .map(|info| Box::new(EnttecDmxPort::new(info)) as Box) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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: aborting due to 1 previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/enttec.rs:266:13 [INFO] [stdout] | [INFO] [stdout] 266 | UsbPort(UsbPortInfo), [INFO] [stdout] | ------- ^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 266 | UsbPort(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_dmx` (lib) due to 2 previous errors; 1 warning emitted [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/enttec.rs:133:25 [INFO] [stdout] | [INFO] [stdout] 133 | .map(|info| Box::new(EnttecDmxPort::new(info)) as Box) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_dmx` (lib test) due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "980bcb7141ae867de84285c3eaf1d971b60e41fe34e012525fecce3b7e2ff420", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "980bcb7141ae867de84285c3eaf1d971b60e41fe34e012525fecce3b7e2ff420", kill_on_drop: false }` [INFO] [stdout] 980bcb7141ae867de84285c3eaf1d971b60e41fe34e012525fecce3b7e2ff420