[INFO] fetching crate synthahol-babylon 0.3.1... [INFO] checking synthahol-babylon-0.3.1 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate synthahol-babylon 0.3.1 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate synthahol-babylon 0.3.1 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 synthahol-babylon 0.3.1 [INFO] finished tweaking crates.io crate synthahol-babylon 0.3.1 [INFO] tweaked toml for crates.io crate synthahol-babylon 0.3.1 written to /workspace/builds/worker-0-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 22 packages to latest compatible versions [INFO] [stderr] Adding heck v0.4.1 (latest: v0.5.0) [INFO] [stderr] Adding strum v0.24.1 (latest: v0.26.3) [INFO] [stderr] Adding strum_macros v0.24.3 (latest: v0.26.4) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.77) [INFO] [stderr] Adding uom v0.34.0 (latest: v0.36.0) [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-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] d5d95c622717640287e82b7a8d5b28e8886f1788299b814c87e161736cd5f989 [INFO] running `Command { std: "docker" "start" "-a" "d5d95c622717640287e82b7a8d5b28e8886f1788299b814c87e161736cd5f989", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d5d95c622717640287e82b7a8d5b28e8886f1788299b814c87e161736cd5f989", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d5d95c622717640287e82b7a8d5b28e8886f1788299b814c87e161736cd5f989", kill_on_drop: false }` [INFO] [stdout] d5d95c622717640287e82b7a8d5b28e8886f1788299b814c87e161736cd5f989 [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] b35c8203b7bd4d1dd6f5cc99f6cc2cded30d597a5864eb61870c2ea9e76763e1 [INFO] running `Command { std: "docker" "start" "-a" "b35c8203b7bd4d1dd6f5cc99f6cc2cded30d597a5864eb61870c2ea9e76763e1", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling autocfg v1.3.0 [INFO] [stderr] Compiling thiserror v1.0.63 [INFO] [stderr] Compiling rustversion v1.0.17 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling serde v1.0.209 [INFO] [stderr] Compiling typenum v1.17.0 [INFO] [stderr] Compiling heck v0.4.1 [INFO] [stderr] Checking log v0.4.22 [INFO] [stderr] Checking xml-rs v0.8.21 [INFO] [stderr] Checking strum v0.24.1 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling quote v1.0.37 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Checking uom v0.34.0 [INFO] [stderr] Checking approx v0.5.1 [INFO] [stderr] Compiling serde_derive v1.0.209 [INFO] [stderr] Compiling thiserror-impl v1.0.63 [INFO] [stderr] Compiling strum_macros v0.24.3 [INFO] [stderr] Checking serde-xml-rs v0.6.0 [INFO] [stderr] Checking synthahol-babylon v0.3.1 (/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/lib.rs:825:42 [INFO] [stdout] | [INFO] [stdout] 825 | self.value.as_ref().and_then(|v| v.parse::().ok()) [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `synthahol-babylon` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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/lib.rs:825:42 [INFO] [stdout] | [INFO] [stdout] 825 | self.value.as_ref().and_then(|v| v.parse::().ok()) [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `synthahol-babylon` (lib test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "b35c8203b7bd4d1dd6f5cc99f6cc2cded30d597a5864eb61870c2ea9e76763e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b35c8203b7bd4d1dd6f5cc99f6cc2cded30d597a5864eb61870c2ea9e76763e1", kill_on_drop: false }` [INFO] [stdout] b35c8203b7bd4d1dd6f5cc99f6cc2cded30d597a5864eb61870c2ea9e76763e1