[INFO] fetching crate pyo3-derive-backend 0.12.5... [INFO] checking pyo3-derive-backend-0.12.5 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate pyo3-derive-backend 0.12.5 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate pyo3-derive-backend 0.12.5 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 pyo3-derive-backend 0.12.5 [INFO] finished tweaking crates.io crate pyo3-derive-backend 0.12.5 [INFO] tweaked toml for crates.io crate pyo3-derive-backend 0.12.5 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 4 packages to latest compatible versions [INFO] [stderr] Adding syn v1.0.109 (available: v2.0.79) [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-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2312f4734daa6e4df1bebaeee9a8fe1910805c93e6fcc1eaab61fdbe6a524d9c [INFO] running `Command { std: "docker" "start" "-a" "2312f4734daa6e4df1bebaeee9a8fe1910805c93e6fcc1eaab61fdbe6a524d9c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2312f4734daa6e4df1bebaeee9a8fe1910805c93e6fcc1eaab61fdbe6a524d9c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2312f4734daa6e4df1bebaeee9a8fe1910805c93e6fcc1eaab61fdbe6a524d9c", kill_on_drop: false }` [INFO] [stdout] 2312f4734daa6e4df1bebaeee9a8fe1910805c93e6fcc1eaab61fdbe6a524d9c [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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2ba93f8af57563d11607babdd6a7212dc5bd50ca4d7128bf77c7964082dc9904 [INFO] running `Command { std: "docker" "start" "-a" "2ba93f8af57563d11607babdd6a7212dc5bd50ca4d7128bf77c7964082dc9904", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking quote v1.0.37 [INFO] [stderr] Checking pyo3-derive-backend v0.12.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/pyclass.rs:85:19 [INFO] [stdout] | [INFO] [stdout] 85 | )); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 98 | _ => expected!("type name (e.g., Name)"), [INFO] [stdout] | ----------------------------------- in this macro invocation [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 #79813 [INFO] [stdout] = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default [INFO] [stdout] = note: this warning originates in the macro `expected` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/pyclass.rs:85:19 [INFO] [stdout] | [INFO] [stdout] 85 | )); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 108 | _ => expected!("type path (e.g., my_mod::BaseClass)"), [INFO] [stdout] | ------------------------------------------------ in this macro invocation [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 #79813 [INFO] [stdout] = note: this warning originates in the macro `expected` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/pyclass.rs:85:19 [INFO] [stdout] | [INFO] [stdout] 85 | )); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 117 | _ => expected!(r#"string literal (e.g., "my_mod")"#), [INFO] [stdout] | ----------------------------------------------- in this macro invocation [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 #79813 [INFO] [stdout] = note: this warning originates in the macro `expected` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/pyclass.rs:85:19 [INFO] [stdout] | [INFO] [stdout] 85 | )); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 119 | _ => expected!("one of freelist/name/extends/module", left), [INFO] [stdout] | ------------------------------------------------------ in this macro invocation [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 #79813 [INFO] [stdout] = note: this warning originates in the macro `expected` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/pymethod.rs:710:63 [INFO] [stdout] | [INFO] [stdout] 710 | fn split_off_python_arg<'a>(args: &'a [FnArg<'a>]) -> (Option<&FnArg>, &[FnArg]) { [INFO] [stdout] | -- lifetime `'a` declared here ^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/pymethod.rs:710:64 [INFO] [stdout] | [INFO] [stdout] 710 | fn split_off_python_arg<'a>(args: &'a [FnArg<'a>]) -> (Option<&FnArg>, &[FnArg]) { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/pymethod.rs:710:72 [INFO] [stdout] | [INFO] [stdout] 710 | fn split_off_python_arg<'a>(args: &'a [FnArg<'a>]) -> (Option<&FnArg>, &[FnArg]) { [INFO] [stdout] | -- lifetime `'a` declared here ^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/pymethod.rs:710:74 [INFO] [stdout] | [INFO] [stdout] 710 | fn split_off_python_arg<'a>(args: &'a [FnArg<'a>]) -> (Option<&FnArg>, &[FnArg]) { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/pyclass.rs:85:19 [INFO] [stdout] | [INFO] [stdout] 85 | )); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 98 | _ => expected!("type name (e.g., Name)"), [INFO] [stdout] | ----------------------------------- in this macro invocation [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 #79813 [INFO] [stdout] = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default [INFO] [stdout] = note: this warning originates in the macro `expected` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/pyclass.rs:85:19 [INFO] [stdout] | [INFO] [stdout] 85 | )); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 108 | _ => expected!("type path (e.g., my_mod::BaseClass)"), [INFO] [stdout] | ------------------------------------------------ in this macro invocation [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 #79813 [INFO] [stdout] = note: this warning originates in the macro `expected` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/pyclass.rs:85:19 [INFO] [stdout] | [INFO] [stdout] 85 | )); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 117 | _ => expected!(r#"string literal (e.g., "my_mod")"#), [INFO] [stdout] | ----------------------------------------------- in this macro invocation [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 #79813 [INFO] [stdout] = note: this warning originates in the macro `expected` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/pyclass.rs:85:19 [INFO] [stdout] | [INFO] [stdout] 85 | )); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 119 | _ => expected!("one of freelist/name/extends/module", left), [INFO] [stdout] | ------------------------------------------------------ in this macro invocation [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 #79813 [INFO] [stdout] = note: this warning originates in the macro `expected` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/pymethod.rs:710:63 [INFO] [stdout] | [INFO] [stdout] 710 | fn split_off_python_arg<'a>(args: &'a [FnArg<'a>]) -> (Option<&FnArg>, &[FnArg]) { [INFO] [stdout] | -- lifetime `'a` declared here ^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/pymethod.rs:710:64 [INFO] [stdout] | [INFO] [stdout] 710 | fn split_off_python_arg<'a>(args: &'a [FnArg<'a>]) -> (Option<&FnArg>, &[FnArg]) { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/pymethod.rs:710:72 [INFO] [stdout] | [INFO] [stdout] 710 | fn split_off_python_arg<'a>(args: &'a [FnArg<'a>]) -> (Option<&FnArg>, &[FnArg]) { [INFO] [stdout] | -- lifetime `'a` declared here ^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/pymethod.rs:710:74 [INFO] [stdout] | [INFO] [stdout] 710 | fn split_off_python_arg<'a>(args: &'a [FnArg<'a>]) -> (Option<&FnArg>, &[FnArg]) { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [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/module.rs:131:11 [INFO] [stdout] | [INFO] [stdout] 84 | let mut fn_attrs = PyFunctionAttr::default(); [INFO] [stdout] | ------------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 131 | match (modname, fnname) { [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/module.rs:131:11 [INFO] [stdout] | [INFO] [stdout] 84 | let mut fn_attrs = PyFunctionAttr::default(); [INFO] [stdout] | ------------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 131 | match (modname, fnname) { [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] warning: field `proto` is never read [INFO] [stdout] --> src/defs.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 61 | pub struct PyMethod { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 62 | pub name: &'static str, [INFO] [stdout] 63 | pub proto: &'static str, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `enum_ident` is never read [INFO] [stdout] --> src/from_pyobject.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | struct Enum<'a> { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 10 | enum_ident: &'a Ident, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `output` is never read [INFO] [stdout] --> src/method.rs:96:9 [INFO] [stdout] | [INFO] [stdout] 87 | pub struct FnSpec<'a> { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 96 | pub output: syn::Type, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `FnSpec` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `proto` is never read [INFO] [stdout] --> src/defs.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 61 | pub struct PyMethod { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 62 | pub name: &'static str, [INFO] [stdout] 63 | pub proto: &'static str, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `enum_ident` is never read [INFO] [stdout] --> src/from_pyobject.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | struct Enum<'a> { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 10 | enum_ident: &'a Ident, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `output` is never read [INFO] [stdout] --> src/method.rs:96:9 [INFO] [stdout] | [INFO] [stdout] 87 | pub struct FnSpec<'a> { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 96 | pub output: syn::Type, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `FnSpec` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `pyo3-derive-backend` (lib test) due to 2 previous errors; 15 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 1 previous error; 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `pyo3-derive-backend` (lib) due to 2 previous errors; 15 warnings emitted [INFO] running `Command { std: "docker" "inspect" "2ba93f8af57563d11607babdd6a7212dc5bd50ca4d7128bf77c7964082dc9904", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2ba93f8af57563d11607babdd6a7212dc5bd50ca4d7128bf77c7964082dc9904", kill_on_drop: false }` [INFO] [stdout] 2ba93f8af57563d11607babdd6a7212dc5bd50ca4d7128bf77c7964082dc9904