[INFO] fetching crate neon-serde2 0.8.0... [INFO] checking neon-serde2-0.8.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate neon-serde2 0.8.0 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate neon-serde2 0.8.0 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 neon-serde2 0.8.0 [INFO] finished tweaking crates.io crate neon-serde2 0.8.0 [INFO] tweaked toml for crates.io crate neon-serde2 0.8.0 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 41 packages to latest compatible versions [INFO] [stderr] Adding addr2line v0.22.0 (latest: v0.24.1) [INFO] [stderr] Adding cslice v0.2.0 (latest: v0.3.0) [INFO] [stderr] Adding gimli v0.29.0 (latest: v0.31.0) [INFO] [stderr] Adding libloading v0.6.7 (latest: v0.8.5) [INFO] [stderr] Adding miniz_oxide v0.7.4 (latest: v0.8.0) [INFO] [stderr] Adding neon v0.8.3 (latest: v1.0.0) [INFO] [stderr] Adding neon-build v0.8.3 (latest: v0.10.1) [INFO] [stderr] Adding neon-macros v0.8.3 (latest: v1.0.0) [INFO] [stderr] Adding neon-runtime v0.8.3 (latest: v0.10.1) [INFO] [stderr] Adding semver v0.9.0 (latest: v1.0.23) [INFO] [stderr] Adding semver-parser v0.7.0 (latest: v0.10.2) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.77) [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] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [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] e9b2e36d11e8ef0ee6f7b59f57a0792c959be31c36ea71fff30be74c14ed96a8 [INFO] running `Command { std: "docker" "start" "-a" "e9b2e36d11e8ef0ee6f7b59f57a0792c959be31c36ea71fff30be74c14ed96a8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e9b2e36d11e8ef0ee6f7b59f57a0792c959be31c36ea71fff30be74c14ed96a8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e9b2e36d11e8ef0ee6f7b59f57a0792c959be31c36ea71fff30be74c14ed96a8", kill_on_drop: false }` [INFO] [stdout] e9b2e36d11e8ef0ee6f7b59f57a0792c959be31c36ea71fff30be74c14ed96a8 [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] 233137d7aac58eb2f30639febb5376f8dcb3e106674f2ad9b183d1587d145b2e [INFO] running `Command { std: "docker" "start" "-a" "233137d7aac58eb2f30639febb5376f8dcb3e106674f2ad9b183d1587d145b2e", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling neon-build v0.8.3 [INFO] [stderr] Checking memchr v2.7.4 [INFO] [stderr] Checking gimli v0.29.0 [INFO] [stderr] Checking semver-parser v0.7.0 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling libc v0.2.158 [INFO] [stderr] Checking libloading v0.6.7 [INFO] [stderr] Checking miniz_oxide v0.7.4 [INFO] [stderr] Compiling error-chain v0.12.4 [INFO] [stderr] Checking cslice v0.2.0 [INFO] [stderr] Compiling quote v1.0.37 [INFO] [stderr] Compiling backtrace v0.3.73 [INFO] [stderr] Checking semver v0.9.0 [INFO] [stderr] Checking neon-runtime v0.8.3 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Compiling neon v0.8.3 [INFO] [stderr] Checking object v0.36.4 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking num-complex v0.4.6 [INFO] [stderr] Checking num-iter v0.1.45 [INFO] [stderr] Checking num-rational v0.4.2 [INFO] [stderr] Checking num v0.4.3 [INFO] [stderr] Checking addr2line v0.22.0 [INFO] [stderr] Compiling serde_derive v1.0.209 [INFO] [stderr] Compiling neon-macros v0.8.3 [INFO] [stderr] Checking neon-serde2 v0.8.0 (/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/de.rs:198:9 [INFO] [stdout] | [INFO] [stdout] 187 | fn next_element_seed(&mut self, seed: T) -> LibResult> [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 198 | seed.deserialize(&mut de).map(Some) [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/de.rs:242:9 [INFO] [stdout] | [INFO] [stdout] 231 | fn next_key_seed(&mut self, seed: K) -> Result, Self::Error> [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 242 | seed.deserialize(&mut de).map(Some) [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/de.rs:292:9 [INFO] [stdout] | [INFO] [stdout] 285 | fn variant_seed(self, seed: V) -> Result<(V::Value, Self::Variant), Self::Error> [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 292 | seed.deserialize(variant).map(|v| (v, variant_access)) [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/ser.rs:14:11 [INFO] [stdout] | [INFO] [stdout] 13 | fn as_num(n: T) -> LibResult { [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 14 | match num::cast::(n) { [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `neon-serde2` (lib) due to 5 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "233137d7aac58eb2f30639febb5376f8dcb3e106674f2ad9b183d1587d145b2e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "233137d7aac58eb2f30639febb5376f8dcb3e106674f2ad9b183d1587d145b2e", kill_on_drop: false }` [INFO] [stdout] 233137d7aac58eb2f30639febb5376f8dcb3e106674f2ad9b183d1587d145b2e