[INFO] fetching crate c-expr 0.3.1... [INFO] checking c-expr-0.3.1 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate c-expr 0.3.1 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate c-expr 0.3.1 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 c-expr 0.3.1 [INFO] finished tweaking crates.io crate c-expr 0.3.1 [INFO] tweaked toml for crates.io crate c-expr 0.3.1 written to /workspace/builds/worker-6-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] Updating crates.io index [INFO] [stderr] Locking 11 packages to latest compatible versions [INFO] [stderr] Adding logos v0.12.1 (latest: v0.14.1) [INFO] [stderr] Adding logos-derive v0.12.1 (latest: v0.14.1) [INFO] [stderr] Adding regex-syntax v0.6.29 (latest: v0.8.4) [INFO] [stderr] Adding rustc-hash v1.1.0 (latest: v2.0.0) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.77) [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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7935257b2955fa6341ff8a74634a481085a132718c2830df939e4ce9f1085ce0 [INFO] running `Command { std: "docker" "start" "-a" "7935257b2955fa6341ff8a74634a481085a132718c2830df939e4ce9f1085ce0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7935257b2955fa6341ff8a74634a481085a132718c2830df939e4ce9f1085ce0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7935257b2955fa6341ff8a74634a481085a132718c2830df939e4ce9f1085ce0", kill_on_drop: false }` [INFO] [stdout] 7935257b2955fa6341ff8a74634a481085a132718c2830df939e4ce9f1085ce0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e840202d29e9b69b91da76e04cea3f473c61f0289d2f2b8ccd80e581ebe10290 [INFO] running `Command { std: "docker" "start" "-a" "e840202d29e9b69b91da76e04cea3f473c61f0289d2f2b8ccd80e581ebe10290", kill_on_drop: false }` [INFO] [stderr] Compiling beef v0.5.2 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling regex-syntax v0.6.29 [INFO] [stderr] Checking rustc-hash v1.1.0 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling logos-derive v0.12.1 [INFO] [stderr] Checking logos v0.12.1 [INFO] [stderr] Checking c-expr v0.3.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::any::type_name_of_val` [INFO] [stdout] --> src/lib.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::any::type_name_of_val; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::any::type_name_of_val` [INFO] [stdout] --> src/lib.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::any::type_name_of_val; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `or_patterns` has been stable since 1.53.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(or_patterns)] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `type_name_of_val` has been stable since 1.76.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(type_name_of_val)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `or_patterns` has been stable since 1.53.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(or_patterns)] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `type_name_of_val` has been stable since 1.76.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(type_name_of_val)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/lib.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 70 | Shr => Binop::Shl, [INFO] [stdout] | --- matches all the relevant values [INFO] [stdout] 71 | Shr => Binop::Shr, [INFO] [stdout] | ^^^ no value can reach this [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [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:177:8 [INFO] [stdout] | [INFO] [stdout] 175 | fn check_postfix(it: &mut Lexer, x: Expr) -> Result { [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 176 | use Token::*; [INFO] [stdout] 177 | Ok(match it.clone().next() { [INFO] [stdout] | ________^ [INFO] [stdout] 178 | | Some(Punct('[')) => { [INFO] [stdout] 179 | | it.next(); [INFO] [stdout] 180 | | let y = parse_expr(it)?; [INFO] [stdout] ... | [INFO] [stdout] 188 | | _ => x, [INFO] [stdout] 189 | | }) [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: aborting due to 1 previous error; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `c-expr` (lib test) due to 2 previous errors; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/lib.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 70 | Shr => Binop::Shl, [INFO] [stdout] | --- matches all the relevant values [INFO] [stdout] 71 | Shr => Binop::Shr, [INFO] [stdout] | ^^^ no value can reach this [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [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:177:8 [INFO] [stdout] | [INFO] [stdout] 175 | fn check_postfix(it: &mut Lexer, x: Expr) -> Result { [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 176 | use Token::*; [INFO] [stdout] 177 | Ok(match it.clone().next() { [INFO] [stdout] | ________^ [INFO] [stdout] 178 | | Some(Punct('[')) => { [INFO] [stdout] 179 | | it.next(); [INFO] [stdout] 180 | | let y = parse_expr(it)?; [INFO] [stdout] ... | [INFO] [stdout] 188 | | _ => x, [INFO] [stdout] 189 | | }) [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: aborting due to 1 previous error; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `c-expr` (lib) due to 2 previous errors; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "e840202d29e9b69b91da76e04cea3f473c61f0289d2f2b8ccd80e581ebe10290", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e840202d29e9b69b91da76e04cea3f473c61f0289d2f2b8ccd80e581ebe10290", kill_on_drop: false }` [INFO] [stdout] e840202d29e9b69b91da76e04cea3f473c61f0289d2f2b8ccd80e581ebe10290