[INFO] fetching crate wasm-msgpack 0.6.2... [INFO] checking wasm-msgpack-0.6.2 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate wasm-msgpack 0.6.2 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate wasm-msgpack 0.6.2 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 wasm-msgpack 0.6.2 [INFO] finished tweaking crates.io crate wasm-msgpack 0.6.2 [INFO] tweaked toml for crates.io crate wasm-msgpack 0.6.2 written to /workspace/builds/worker-3-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] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 51 packages to latest compatible versions [INFO] [stderr] Adding hash32 v0.2.1 (latest: v0.3.1) [INFO] [stderr] Adding heapless v0.7.17 (latest: v0.8.0) [INFO] [stderr] Adding rstest v0.17.0 (latest: v0.22.0) [INFO] [stderr] Adding rstest_macros v0.17.0 (latest: v0.22.0) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.77) [INFO] [stderr] Adding yansi v0.5.1 (latest: v1.0.1) [INFO] [stderr] Adding zerocopy v0.6.6 (latest: v0.7.35) [INFO] [stderr] Adding zerocopy-derive v0.6.6 (latest: v0.7.35) [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] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 5c44801ad3a71d61cb27a548742ba5bbbd18af4aca8498036cafc5990d6835f2 [INFO] running `Command { std: "docker" "start" "-a" "5c44801ad3a71d61cb27a548742ba5bbbd18af4aca8498036cafc5990d6835f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5c44801ad3a71d61cb27a548742ba5bbbd18af4aca8498036cafc5990d6835f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5c44801ad3a71d61cb27a548742ba5bbbd18af4aca8498036cafc5990d6835f2", kill_on_drop: false }` [INFO] [stdout] 5c44801ad3a71d61cb27a548742ba5bbbd18af4aca8498036cafc5990d6835f2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 75fbd9b41a256766738d84cdce8d54badd86933140b928f88976f6d3d6bba605 [INFO] running `Command { std: "docker" "start" "-a" "75fbd9b41a256766738d84cdce8d54badd86933140b928f88976f6d3d6bba605", kill_on_drop: false }` [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling heapless v0.7.17 [INFO] [stderr] Compiling rstest_macros v0.17.0 [INFO] [stderr] Checking spin v0.9.8 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking yansi v0.5.1 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking diff v0.1.13 [INFO] [stderr] Checking hash32 v0.2.1 [INFO] [stderr] Checking rmp v0.8.14 [INFO] [stderr] Checking pretty_assertions v1.4.0 [INFO] [stderr] Compiling serde_derive v1.0.209 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling zerocopy-derive v0.6.6 [INFO] [stderr] Compiling serde_repr v0.1.19 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking zerocopy v0.6.6 [INFO] [stderr] Checking serde v1.0.209 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking rstest v0.17.0 [INFO] [stderr] Checking serde_bytes v0.11.15 [INFO] [stderr] Checking rmp-serde v1.3.0 [INFO] [stderr] Checking serde_json v1.0.127 [INFO] [stderr] Checking wasm-msgpack v0.6.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: this function depends on never type fallback being `()` [INFO] [stdout] --> src/ext/timestamp.rs:188:13 [INFO] [stdout] | [INFO] [stdout] 188 | / fn visit_map(self, mut map: V) -> Result [INFO] [stdout] 189 | | where [INFO] [stdout] 190 | | V: ::serde::de::MapAccess<'de>, [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 `!: ext::_::_serde::Deserialize<'de>` will fail [INFO] [stdout] --> src/ext/timestamp.rs:249:33 [INFO] [stdout] | [INFO] [stdout] 249 | ... map.next_value()?; [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/ext/mod.rs:220:13 [INFO] [stdout] | [INFO] [stdout] 220 | / fn visit_map(self, mut map: V) -> Result [INFO] [stdout] 221 | | where [INFO] [stdout] 222 | | V: ::serde::de::MapAccess<'de>, [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 `!: ext::_::_serde::Deserialize<'de>` will fail [INFO] [stdout] --> src/ext/mod.rs:289:33 [INFO] [stdout] | [INFO] [stdout] 289 | ... map.next_value()?; [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/decode/mod.rs:117:8 [INFO] [stdout] | [INFO] [stdout] 111 | pub fn read_raw_u16(buf: B) -> Result<(u16, B), Error> { [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 116 | let (v, rest) = buf.split_at(2); [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] 117 | Ok((BigEndian::read_u16(&*v), rest)) [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/decode/mod.rs:154:11 [INFO] [stdout] | [INFO] [stdout] 153 | pub fn read_int(buf: B) -> Result<(T, usize), Error> { [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 154 | match read_u64(buf) { [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/decode/mod.rs:155:79 [INFO] [stdout] | [INFO] [stdout] 155 | Ok((v, len)) => T::from_u64(v).map_or(Err(Error::OutOfBounds), |v| Ok((v, len))), [INFO] [stdout] | - ^^^^^^^^ [INFO] [stdout] | | [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] [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/decode/mod.rs:161:11 [INFO] [stdout] | [INFO] [stdout] 160 | pub fn read_sint(buf: B) -> Result<(T, usize), Error> { [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 161 | match read_i64(buf) { [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/decode/mod.rs:162:79 [INFO] [stdout] | [INFO] [stdout] 162 | Ok((v, len)) => T::from_i64(v).map_or(Err(Error::OutOfBounds), |v| Ok((v, len))), [INFO] [stdout] | - ^^^^^^^^ [INFO] [stdout] | | [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] [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/decode/serde/enum_.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 19 | fn variant_seed(self, seed: V) -> Result<(V::Value, Self), Self::Error> [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 24 | let variant = seed.deserialize(&mut *self.de)?; [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 25 | Ok((variant, self)) [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] [INFO] [stdout] [INFO] [stdout] error: aborting due to 6 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `wasm-msgpack` (lib) due to 7 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "75fbd9b41a256766738d84cdce8d54badd86933140b928f88976f6d3d6bba605", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "75fbd9b41a256766738d84cdce8d54badd86933140b928f88976f6d3d6bba605", kill_on_drop: false }` [INFO] [stdout] 75fbd9b41a256766738d84cdce8d54badd86933140b928f88976f6d3d6bba605