[INFO] fetching crate tiny-multihash-proc-macro 0.1.0... [INFO] checking tiny-multihash-proc-macro-0.1.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate tiny-multihash-proc-macro 0.1.0 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate tiny-multihash-proc-macro 0.1.0 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 tiny-multihash-proc-macro 0.1.0 [INFO] finished tweaking crates.io crate tiny-multihash-proc-macro 0.1.0 [INFO] tweaked toml for crates.io crate tiny-multihash-proc-macro 0.1.0 written to /workspace/builds/worker-1-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 23 packages to latest compatible versions [INFO] [stderr] Adding ansi_term v0.11.0 (latest: v0.12.1) [INFO] [stderr] Adding ctor v0.1.26 (latest: v0.2.8) [INFO] [stderr] Adding pretty_assertions v0.6.1 (latest: v1.4.0) [INFO] [stderr] Adding proc-macro-crate v0.1.5 (latest: v3.2.0) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.77) [INFO] [stderr] Adding synstructure v0.12.6 (latest: v0.13.1) [INFO] [stderr] Adding toml v0.5.11 (latest: v0.8.19) [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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a747d01a941bf31324945ad093a2237fa7d115ae2c9534290c2f26497b6b7223 [INFO] running `Command { std: "docker" "start" "-a" "a747d01a941bf31324945ad093a2237fa7d115ae2c9534290c2f26497b6b7223", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a747d01a941bf31324945ad093a2237fa7d115ae2c9534290c2f26497b6b7223", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a747d01a941bf31324945ad093a2237fa7d115ae2c9534290c2f26497b6b7223", kill_on_drop: false }` [INFO] [stdout] a747d01a941bf31324945ad093a2237fa7d115ae2c9534290c2f26497b6b7223 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 34987fce340dda98ff8da51f74e08c2d154ea2b172a2be77fa624c65000207ef [INFO] running `Command { std: "docker" "start" "-a" "34987fce340dda98ff8da51f74e08c2d154ea2b172a2be77fa624c65000207ef", kill_on_drop: false }` [INFO] [stderr] Checking unicode-ident v1.0.12 [INFO] [stderr] Checking unicode-xid v0.2.5 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling serde v1.0.209 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking proc-macro2 v1.0.86 [INFO] [stderr] Checking pretty_assertions v0.6.1 [INFO] [stderr] Checking quote v1.0.37 [INFO] [stderr] Checking syn v1.0.109 [INFO] [stderr] Checking toml v0.5.11 [INFO] [stderr] Checking proc-macro-crate v0.1.5 [INFO] [stderr] Checking synstructure v0.12.6 [INFO] [stderr] Checking tiny-multihash-proc-macro v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `paren` is never read [INFO] [stdout] --> src/utils.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct Attrs { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 12 | pub paren: syn::token::Paren, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Attrs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `key` and `eq` are never read [INFO] [stdout] --> src/utils.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct Attr { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 27 | pub key: K, [INFO] [stdout] | ^^^ [INFO] [stdout] 28 | pub eq: syn::token::Eq, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `Attr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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/lib.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 11 | fn multihash(s: Structure) -> TokenStream { [INFO] [stdout] | ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 12 | multihash::multihash(s).into() [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/utils.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 18 | let content; [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 19 | let paren = syn::parenthesized!(content in input); [INFO] [stdout] | ------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 20 | let attrs = content.parse_terminated(A::parse)?; [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 21 | Ok(Self { paren, attrs }) [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 2 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `tiny-multihash-proc-macro` (lib) due to 3 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: field `paren` is never read [INFO] [stdout] --> src/utils.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct Attrs { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 12 | pub paren: syn::token::Paren, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Attrs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `key` and `eq` are never read [INFO] [stdout] --> src/utils.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct Attr { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 27 | pub key: K, [INFO] [stdout] | ^^^ [INFO] [stdout] 28 | pub eq: syn::token::Eq, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `Attr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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/lib.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 11 | fn multihash(s: Structure) -> TokenStream { [INFO] [stdout] | ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 12 | multihash::multihash(s).into() [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/utils.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 18 | let content; [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 19 | let paren = syn::parenthesized!(content in input); [INFO] [stdout] | ------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 20 | let attrs = content.parse_terminated(A::parse)?; [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 21 | Ok(Self { paren, attrs }) [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 2 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `tiny-multihash-proc-macro` (lib test) due to 3 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "34987fce340dda98ff8da51f74e08c2d154ea2b172a2be77fa624c65000207ef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "34987fce340dda98ff8da51f74e08c2d154ea2b172a2be77fa624c65000207ef", kill_on_drop: false }` [INFO] [stdout] 34987fce340dda98ff8da51f74e08c2d154ea2b172a2be77fa624c65000207ef