[INFO] fetching crate systembus-notifier 0.1.2... [INFO] checking systembus-notifier-0.1.2 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate systembus-notifier 0.1.2 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate systembus-notifier 0.1.2 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 systembus-notifier 0.1.2 [INFO] finished tweaking crates.io crate systembus-notifier 0.1.2 [INFO] tweaked toml for crates.io crate systembus-notifier 0.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate crates.io crate systembus-notifier 0.1.2 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 44bca80ed32a75816ce8f0ddec6b08cd5937c0f84f21d4be104dc9d3d5ccf002 [INFO] running `Command { std: "docker" "start" "-a" "44bca80ed32a75816ce8f0ddec6b08cd5937c0f84f21d4be104dc9d3d5ccf002", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "44bca80ed32a75816ce8f0ddec6b08cd5937c0f84f21d4be104dc9d3d5ccf002", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "44bca80ed32a75816ce8f0ddec6b08cd5937c0f84f21d4be104dc9d3d5ccf002", kill_on_drop: false }` [INFO] [stdout] 44bca80ed32a75816ce8f0ddec6b08cd5937c0f84f21d4be104dc9d3d5ccf002 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 26ee8898f6a87f09a0c6ae127ec46bd6397eafc4b48e9c5108cb878b878aa26b [INFO] running `Command { std: "docker" "start" "-a" "26ee8898f6a87f09a0c6ae127ec46bd6397eafc4b48e9c5108cb878b878aa26b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.127 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling proc-macro2 v1.0.43 [INFO] [stderr] Compiling unicode-ident v1.0.3 [INFO] [stderr] Compiling quote v1.0.21 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling syn v1.0.99 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling pkg-config v0.3.25 [INFO] [stderr] Compiling error-chain v0.12.4 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Checking itoa v1.0.3 [INFO] [stderr] Checking num_threads v0.1.6 [INFO] [stderr] Compiling heck v0.4.0 [INFO] [stderr] Checking match_cfg v0.1.0 [INFO] [stderr] Checking os_str_bytes v6.2.0 [INFO] [stderr] Checking once_cell v1.13.0 [INFO] [stderr] Checking strsim v0.10.0 [INFO] [stderr] Checking textwrap v0.15.0 [INFO] [stderr] Checking clap_lex v0.2.4 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Compiling indexmap v1.9.1 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling libdbus-sys v0.2.2 [INFO] [stderr] Checking time v0.3.14 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking hostname v0.3.1 [INFO] [stderr] Checking dbus v0.9.6 [INFO] [stderr] Checking nix v0.24.2 [INFO] [stderr] Checking syslog v6.0.1 [INFO] [stderr] Compiling clap_derive v3.2.15 [INFO] [stderr] Checking clap v3.2.16 [INFO] [stderr] Checking systembus-notifier v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:72:5 [INFO] [stdout] | [INFO] [stdout] 66 | / loop { [INFO] [stdout] 67 | | if let Err(e) = system_connection.process(timeout) { [INFO] [stdout] 68 | | log::error!("Couldn't process incoming message. {}", e); [INFO] [stdout] 69 | | } [INFO] [stdout] 70 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 71 | [INFO] [stdout] 72 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:72:5 [INFO] [stdout] | [INFO] [stdout] 66 | / loop { [INFO] [stdout] 67 | | if let Err(e) = system_connection.process(timeout) { [INFO] [stdout] 68 | | log::error!("Couldn't process incoming message. {}", e); [INFO] [stdout] 69 | | } [INFO] [stdout] 70 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 71 | [INFO] [stdout] 72 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this function depends on never type fallback being `()` [INFO] [stdout] --> src/main.rs:25:1 [INFO] [stdout] | [INFO] [stdout] 25 | fn main() -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #123748 [INFO] [stdout] = help: specify the types explicitly [INFO] [stdout] note: in edition 2024, the requirement `!: ReadAll` will fail [INFO] [stdout] --> src/main.rs:57:10 [INFO] [stdout] | [INFO] [stdout] 57 | .method_call("org.freedesktop.DBus.Monitoring", "BecomeMonitor", (vec!(rule.match_str()), 0u32))?; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this function depends on never type fallback being `()` [INFO] [stdout] --> src/main.rs:25:1 [INFO] [stdout] | [INFO] [stdout] 25 | fn main() -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #123748 [INFO] [stdout] = help: specify the types explicitly [INFO] [stdout] note: in edition 2024, the requirement `!: ReadAll` will fail [INFO] [stdout] --> src/main.rs:57:10 [INFO] [stdout] | [INFO] [stdout] 57 | .method_call("org.freedesktop.DBus.Monitoring", "BecomeMonitor", (vec!(rule.match_str()), 0u32))?; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default [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/main.rs:100:8 [INFO] [stdout] | [INFO] [stdout] 95 | let mut channel = Channel::open_private(address)?; [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 100 | Ok(channel.into()) [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [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: aborting due to 1 previous error; 2 warnings emitted [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/main.rs:100:8 [INFO] [stdout] | [INFO] [stdout] 95 | let mut channel = Channel::open_private(address)?; [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 100 | Ok(channel.into()) [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [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] [stderr] error: could not compile `systembus-notifier` (bin "systembus-notifier") due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `systembus-notifier` (bin "systembus-notifier" test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "26ee8898f6a87f09a0c6ae127ec46bd6397eafc4b48e9c5108cb878b878aa26b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "26ee8898f6a87f09a0c6ae127ec46bd6397eafc4b48e9c5108cb878b878aa26b", kill_on_drop: false }` [INFO] [stdout] 26ee8898f6a87f09a0c6ae127ec46bd6397eafc4b48e9c5108cb878b878aa26b