[INFO] fetching crate derive-serialize-into 0.3.1... [INFO] checking derive-serialize-into-0.3.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate derive-serialize-into 0.3.1 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate derive-serialize-into 0.3.1 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate derive-serialize-into 0.3.1 [INFO] finished tweaking crates.io crate derive-serialize-into 0.3.1 [INFO] tweaked toml for crates.io crate derive-serialize-into 0.3.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 36 packages to latest compatible versions [INFO] [stderr] Adding aho-corasick v0.6.10 (available: v1.1.3) [INFO] [stderr] Adding idna v0.1.5 (available: v1.0.2) [INFO] [stderr] Adding percent-encoding v1.0.1 (available: v2.3.1) [INFO] [stderr] Adding proc-macro2 v0.3.8 (available: v1.0.86) [INFO] [stderr] Adding quote v0.5.2 (available: v1.0.37) [INFO] [stderr] Adding regex v0.2.11 (available: v1.10.6) [INFO] [stderr] Adding regex-syntax v0.5.6 (available: v0.8.4) [INFO] [stderr] Adding syn v0.13.11 (available: v2.0.77) [INFO] [stderr] Adding thread_local v0.3.6 (available: v1.1.8) [INFO] [stderr] Adding try_from v0.2.2 (available: v0.3.2) [INFO] [stderr] Adding ucd-util v0.1.10 (available: v0.2.1) [INFO] [stderr] Adding unicode-xid v0.1.0 (available: v0.2.6) [INFO] [stderr] Adding url v1.7.2 (available: v2.5.2) [INFO] [stderr] Adding validator v0.6.3 (available: v0.18.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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] [stderr] Blocking waiting for file lock on package cache [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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d976238c84f047dedccb9db2fd478abeff6057e58fac198ff9b8b78334df2bf9 [INFO] running `Command { std: "docker" "start" "-a" "d976238c84f047dedccb9db2fd478abeff6057e58fac198ff9b8b78334df2bf9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d976238c84f047dedccb9db2fd478abeff6057e58fac198ff9b8b78334df2bf9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d976238c84f047dedccb9db2fd478abeff6057e58fac198ff9b8b78334df2bf9", kill_on_drop: false }` [INFO] [stdout] d976238c84f047dedccb9db2fd478abeff6057e58fac198ff9b8b78334df2bf9 [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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f0489ece60fb0f2fcae4bfb913c95f566380758c7f4e51d9754e13fe2c305625 [INFO] running `Command { std: "docker" "start" "-a" "f0489ece60fb0f2fcae4bfb913c95f566380758c7f4e51d9754e13fe2c305625", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Checking unicode-xid v0.1.0 [INFO] [stderr] Checking ucd-util v0.1.10 [INFO] [stderr] Checking matches v0.1.10 [INFO] [stderr] Checking unicode-normalization v0.1.24 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Checking unicode-bidi v0.3.15 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking proc-macro2 v0.3.8 [INFO] [stderr] Checking regex-syntax v0.5.6 [INFO] [stderr] Checking aho-corasick v0.6.10 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Checking utf8-ranges v1.0.5 [INFO] [stderr] Checking serde_json v1.0.128 [INFO] [stderr] Checking try_from v0.2.2 [INFO] [stderr] Checking quote v0.5.2 [INFO] [stderr] Checking syn v0.13.11 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Checking regex-automata v0.4.7 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Checking derive-serialize-into v0.3.1 (/opt/rustwide/workdir) [INFO] [stdout] error: this value of type `MetaList` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:452:25 [INFO] [stdout] | [INFO] [stdout] 448 | map_unique_attr(ast, name, |meta| match meta { [INFO] [stdout] | ---- [INFO] [stdout] | | [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 452 | syn::Meta::List(list) => { [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: this value of type `(Option, Option)` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:477:11 [INFO] [stdout] | [INFO] [stdout] 472 | let mut t_iter = ast.attrs [INFO] [stdout] | ---------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 477 | match (t_iter.next(), t_iter.next()) { [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 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `derive-serialize-into` (lib) due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "f0489ece60fb0f2fcae4bfb913c95f566380758c7f4e51d9754e13fe2c305625", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f0489ece60fb0f2fcae4bfb913c95f566380758c7f4e51d9754e13fe2c305625", kill_on_drop: false }` [INFO] [stdout] f0489ece60fb0f2fcae4bfb913c95f566380758c7f4e51d9754e13fe2c305625