[INFO] fetching crate bellpepper-core 0.4.0... [INFO] checking bellpepper-core-0.4.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate bellpepper-core 0.4.0 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate bellpepper-core 0.4.0 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 bellpepper-core 0.4.0 [INFO] finished tweaking crates.io crate bellpepper-core 0.4.0 [INFO] tweaked toml for crates.io crate bellpepper-core 0.4.0 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 106 packages to latest compatible versions [INFO] [stderr] Adding anes v0.1.6 (latest: v0.2.0) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.6.0) [INFO] [stderr] Adding clap v3.2.25 (latest: v4.5.16) [INFO] [stderr] Adding clap_lex v0.2.4 (latest: v0.7.2) [INFO] [stderr] Adding criterion v0.4.0 (latest: v0.5.1) [INFO] [stderr] Adding hashbrown v0.12.3 (latest: v0.14.5) [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.4.0) [INFO] [stderr] Adding hermit-abi v0.3.9 (latest: v0.4.0) [INFO] [stderr] Adding indexmap v1.9.3 (latest: v2.5.0) [INFO] [stderr] Adding itertools v0.10.5 (latest: v0.13.0) [INFO] [stderr] Adding os_str_bytes v6.6.1 (latest: v7.0.0) [INFO] [stderr] Adding radium v0.7.0 (latest: v1.1.0) [INFO] [stderr] Adding wyz v0.5.1 (latest: v0.6.1) [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-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d41244a0b92cca9766c617a61daffce7da3c9cd34ab106774d8fe16e7f0e9c94 [INFO] running `Command { std: "docker" "start" "-a" "d41244a0b92cca9766c617a61daffce7da3c9cd34ab106774d8fe16e7f0e9c94", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d41244a0b92cca9766c617a61daffce7da3c9cd34ab106774d8fe16e7f0e9c94", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d41244a0b92cca9766c617a61daffce7da3c9cd34ab106774d8fe16e7f0e9c94", kill_on_drop: false }` [INFO] [stdout] d41244a0b92cca9766c617a61daffce7da3c9cd34ab106774d8fe16e7f0e9c94 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0b66f78cb2842c4a046cd040a4b36562c0b7a9d9d9e6d3d23d3d1989802a3933 [INFO] running `Command { std: "docker" "start" "-a" "0b66f78cb2842c4a046cd040a4b36562c0b7a9d9d9e6d3d23d3d1989802a3933", kill_on_drop: false }` [INFO] [stderr] Compiling radium v0.7.0 [INFO] [stderr] Checking tap v1.0.1 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking funty v2.0.0 [INFO] [stderr] Checking subtle v2.6.1 [INFO] [stderr] Compiling crossbeam-utils v0.8.20 [INFO] [stderr] Compiling blst v0.3.13 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Checking regex-automata v0.4.7 [INFO] [stderr] Checking ciborium-ll v0.2.2 [INFO] [stderr] Checking clap_lex v0.2.4 [INFO] [stderr] Checking plotters-svg v0.3.6 [INFO] [stderr] Checking threadpool v1.8.1 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking constant_time_eq v0.3.1 [INFO] [stderr] Checking wyz v0.5.1 [INFO] [stderr] Checking arrayref v0.3.8 [INFO] [stderr] Checking arrayvec v0.7.6 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking rand_xorshift v0.3.0 [INFO] [stderr] Checking byte-slice-cast v1.2.2 [INFO] [stderr] Checking plotters v0.3.6 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking crossbeam-epoch v0.9.18 [INFO] [stderr] Checking blake2s_simd v1.0.2 [INFO] [stderr] Checking bitvec v1.0.1 [INFO] [stderr] Checking clap v3.2.25 [INFO] [stderr] Checking crossbeam-deque v0.8.5 [INFO] [stderr] Checking rayon-core v1.12.1 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stderr] Checking criterion-plot v0.5.0 [INFO] [stderr] Checking regex v1.10.6 [INFO] [stderr] Checking ff v0.13.0 [INFO] [stderr] Checking group v0.13.0 [INFO] [stderr] Checking pairing v0.23.0 [INFO] [stderr] Compiling serde_derive v1.0.209 [INFO] [stderr] Compiling zeroize_derive v1.4.2 [INFO] [stderr] Compiling thiserror-impl v1.0.63 [INFO] [stderr] Checking zeroize v1.8.1 [INFO] [stderr] Checking thiserror v1.0.63 [INFO] [stderr] Checking serde v1.0.209 [INFO] [stderr] Checking serde_json v1.0.127 [INFO] [stderr] Checking ciborium v0.2.2 [INFO] [stderr] Checking blstrs v0.7.1 [INFO] [stderr] Checking bellpepper-core v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition value: `groth16` [INFO] [stdout] --> src/lc.rs:376:17 [INFO] [stdout] | [INFO] [stdout] 376 | #[cfg(all(test, feature = "groth16"))] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: remove the condition [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = help: consider adding `groth16` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/util_cs/test_cs.rs:14:16 [INFO] [stdout] | [INFO] [stdout] 14 | Constraint(usize), [INFO] [stdout] | ---------- ^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `NamedObject` 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] 14 | Constraint(()), [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/gadgets/boolean.rs:360:43 [INFO] [stdout] | [INFO] [stdout] 360 | .map(|(i, b)| AllocatedBit::alloc(cs.namespace(|| format!("bit {}", i)), b)) [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/gadgets/num.rs:57:9 [INFO] [stdout] | [INFO] [stdout] 52 | pub fn alloc_infallible(cs: CS, value: F) -> Self [INFO] [stdout] | ------ -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 57 | Self::alloc(cs, || Ok(value())).unwrap() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/gadgets/num.rs:110:33 [INFO] [stdout] | [INFO] [stdout] 110 | || self.value.ok_or(SynthesisError::AssignmentMissing), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/gadgets/num.rs:179:59 [INFO] [stdout] | [INFO] [stdout] 179 | let a_bit: Option = a.as_mut().map(|e| *e.next().unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [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 4 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `bellpepper-core` (lib) due to 5 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "0b66f78cb2842c4a046cd040a4b36562c0b7a9d9d9e6d3d23d3d1989802a3933", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0b66f78cb2842c4a046cd040a4b36562c0b7a9d9d9e6d3d23d3d1989802a3933", kill_on_drop: false }` [INFO] [stdout] 0b66f78cb2842c4a046cd040a4b36562c0b7a9d9d9e6d3d23d3d1989802a3933