[INFO] fetching crate conjecture 0.7.0... [INFO] checking conjecture-0.7.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate conjecture 0.7.0 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate conjecture 0.7.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate conjecture 0.7.0 [INFO] finished tweaking crates.io crate conjecture 0.7.0 [INFO] tweaked toml for crates.io crate conjecture 0.7.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 47 packages to latest compatible versions [INFO] [stderr] Adding foreign-types v0.3.2 (available: v0.5.0) [INFO] [stderr] Adding foreign-types-shared v0.1.1 (available: v0.3.1) [INFO] [stderr] Adding hex v0.3.2 (available: v0.4.3) [INFO] [stderr] Adding linux-raw-sys v0.4.14 (available: v0.6.5) [INFO] [stderr] Adding rand v0.3.23 (available: v0.8.5) [INFO] [stderr] Adding rand v0.4.6 (available: v0.8.5) [INFO] [stderr] Adding rand_core v0.3.1 (available: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (available: v0.6.4) [INFO] [stderr] Adding rdrand v0.4.0 (available: v0.8.3) [INFO] [stderr] Adding windows-sys v0.52.0 (available: v0.59.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7cfef9aa97db513b41b8f4a27f45837dec15bc59d44ed437b14fd3d78bddfe77 [INFO] running `Command { std: "docker" "start" "-a" "7cfef9aa97db513b41b8f4a27f45837dec15bc59d44ed437b14fd3d78bddfe77", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7cfef9aa97db513b41b8f4a27f45837dec15bc59d44ed437b14fd3d78bddfe77", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7cfef9aa97db513b41b8f4a27f45837dec15bc59d44ed437b14fd3d78bddfe77", kill_on_drop: false }` [INFO] [stdout] 7cfef9aa97db513b41b8f4a27f45837dec15bc59d44ed437b14fd3d78bddfe77 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9c03c6b570f66ddbbef75728441a7a799e7f6aa2cfb163cde9dc85357bd483f5 [INFO] running `Command { std: "docker" "start" "-a" "9c03c6b570f66ddbbef75728441a7a799e7f6aa2cfb163cde9dc85357bd483f5", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.159 [INFO] [stderr] Compiling shlex v1.3.0 [INFO] [stderr] Compiling pkg-config v0.3.31 [INFO] [stderr] Compiling vcpkg v0.2.15 [INFO] [stderr] Checking bitflags v2.6.0 [INFO] [stderr] Checking foreign-types-shared v0.1.1 [INFO] [stderr] Compiling openssl v0.10.66 [INFO] [stderr] Checking once_cell v1.19.0 [INFO] [stderr] Compiling rustix v0.38.37 [INFO] [stderr] Checking hex v0.3.2 [INFO] [stderr] Checking linux-raw-sys v0.4.14 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking fastrand v2.1.1 [INFO] [stderr] Compiling syn v2.0.79 [INFO] [stderr] Checking foreign-types v0.3.2 [INFO] [stderr] Compiling cc v1.1.22 [INFO] [stderr] Compiling openssl-sys v0.9.103 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking tempfile v3.13.0 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Checking crypto-hash v0.3.4 [INFO] [stderr] Checking conjecture v0.7.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this value of type `Result<(), Box>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/engine.rs:724:37 [INFO] [stdout] | [INFO] [stdout] 721 | let mut maybe_handle = None; [INFO] [stdout] | ---------------- [INFO] [stdout] | | [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 724 | if let Err(boxed_msg) = handle.join() { [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] warning: field `0` is never read [INFO] [stdout] --> src/engine.rs:54:14 [INFO] [stdout] | [INFO] [stdout] 54 | Finished(LoopExitReason, MainGenerationLoop), [INFO] [stdout] | -------- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `LoopCommand` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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] 54 | Finished((), MainGenerationLoop), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/engine.rs:732:28 [INFO] [stdout] | [INFO] [stdout] 732 | panic!(msg.to_string()); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 732 | panic!("{}", msg.to_string()); [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/engine.rs:734:28 [INFO] [stdout] | [INFO] [stdout] 734 | panic!(msg.clone()); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 734 | panic!("{}", msg.clone()); [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `Result<(), Box>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/engine.rs:724:37 [INFO] [stdout] | [INFO] [stdout] 721 | let mut maybe_handle = None; [INFO] [stdout] | ---------------- [INFO] [stdout] | | [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 724 | if let Err(boxed_msg) = handle.join() { [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] error: could not compile `conjecture` (lib) due to 2 previous errors; 3 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/engine.rs:54:14 [INFO] [stdout] | [INFO] [stdout] 54 | Finished(LoopExitReason, MainGenerationLoop), [INFO] [stdout] | -------- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `LoopCommand` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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] 54 | Finished((), MainGenerationLoop), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/engine.rs:732:28 [INFO] [stdout] | [INFO] [stdout] 732 | panic!(msg.to_string()); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 732 | panic!("{}", msg.to_string()); [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/engine.rs:734:28 [INFO] [stdout] | [INFO] [stdout] 734 | panic!(msg.clone()); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 734 | panic!("{}", msg.clone()); [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `conjecture` (lib test) due to 2 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "9c03c6b570f66ddbbef75728441a7a799e7f6aa2cfb163cde9dc85357bd483f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9c03c6b570f66ddbbef75728441a7a799e7f6aa2cfb163cde9dc85357bd483f5", kill_on_drop: false }` [INFO] [stdout] 9c03c6b570f66ddbbef75728441a7a799e7f6aa2cfb163cde9dc85357bd483f5