[INFO] fetching crate serde_cbor 0.11.2...
[INFO] checking serde_cbor-0.11.2 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate serde_cbor 0.11.2 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate serde_cbor 0.11.2 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 serde_cbor 0.11.2
[INFO] finished tweaking crates.io crate serde_cbor 0.11.2
[INFO] tweaked toml for crates.io crate serde_cbor 0.11.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate serde_cbor 0.11.2 already has a lockfile, it will not be regenerated
[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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] a467e2e07d004a0a63ed1d7bdf12e0a0010472b1a20bce9655f10bbb0f6fbd82
[INFO] running `Command { std: "docker" "start" "-a" "a467e2e07d004a0a63ed1d7bdf12e0a0010472b1a20bce9655f10bbb0f6fbd82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a467e2e07d004a0a63ed1d7bdf12e0a0010472b1a20bce9655f10bbb0f6fbd82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a467e2e07d004a0a63ed1d7bdf12e0a0010472b1a20bce9655f10bbb0f6fbd82", kill_on_drop: false }`
[INFO] [stdout] a467e2e07d004a0a63ed1d7bdf12e0a0010472b1a20bce9655f10bbb0f6fbd82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f0a5a91792d201988917180d24ad8a5fe3a68aece5056134fb1335919b3cb674
[INFO] running `Command { std: "docker" "start" "-a" "f0a5a91792d201988917180d24ad8a5fe3a68aece5056134fb1335919b3cb674", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking half v1.4.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking serde_cbor v0.11.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stdout] error: this value of type `std::result::Result<std::option::Option<<S as DeserializeSeed<'_>>::Value>, error::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]     --> src/de.rs:1175:15
[INFO] [stdout]      |
[INFO] [stdout] 1171 |     fn newtype_variant_seed<S>(mut self, seed: S) -> Result<S::Value>
[INFO] [stdout]      |                                -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 1175 |         match self.seq.next_element_seed(seed) {
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this changes meaning in Rust 2024
[INFO] [stdout]      = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]      = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this value of type `std::result::Result<std::option::Option<<V as Visitor<'_>>::Value>, error::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]     --> src/de.rs:1194:15
[INFO] [stdout]      |
[INFO] [stdout] 1189 |     fn struct_variant<V>(mut self, _fields: &'static [&'static str], visitor: V) -> Result<V::Value>
[INFO] [stdout]      |                          -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 1194 |         match self.seq.next_element_seed(seed) {
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this changes meaning in Rust 2024
[INFO] [stdout]      = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde_cbor` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f0a5a91792d201988917180d24ad8a5fe3a68aece5056134fb1335919b3cb674", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0a5a91792d201988917180d24ad8a5fe3a68aece5056134fb1335919b3cb674", kill_on_drop: false }`
[INFO] [stdout] f0a5a91792d201988917180d24ad8a5fe3a68aece5056134fb1335919b3cb674