[INFO] fetching crate hanger 0.1.0... [INFO] checking hanger-0.1.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate hanger 0.1.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate hanger 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 hanger 0.1.0 [INFO] finished tweaking crates.io crate hanger 0.1.0 [INFO] tweaked toml for crates.io crate hanger 0.1.0 written to /workspace/builds/worker-4-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 5 packages to latest compatible versions [INFO] [stderr] Adding proc-macro2 v0.4.30 (latest: v1.0.86) [INFO] [stderr] Adding quote v0.6.13 (latest: v1.0.37) [INFO] [stderr] Adding syn v0.15.44 (latest: v2.0.77) [INFO] [stderr] Adding unicode-xid v0.1.0 (latest: v0.2.5) [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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 39c5bc0ba29b1c0a0b10ada9c46a247bbec4cb3b2d6952cb3cff094d1ac0f536 [INFO] running `Command { std: "docker" "start" "-a" "39c5bc0ba29b1c0a0b10ada9c46a247bbec4cb3b2d6952cb3cff094d1ac0f536", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "39c5bc0ba29b1c0a0b10ada9c46a247bbec4cb3b2d6952cb3cff094d1ac0f536", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "39c5bc0ba29b1c0a0b10ada9c46a247bbec4cb3b2d6952cb3cff094d1ac0f536", kill_on_drop: false }` [INFO] [stdout] 39c5bc0ba29b1c0a0b10ada9c46a247bbec4cb3b2d6952cb3cff094d1ac0f536 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2967c5d9a7f8ad10a8208b4a7e9df3650b2cdf37b3451a09a862491984aa1502 [INFO] running `Command { std: "docker" "start" "-a" "2967c5d9a7f8ad10a8208b4a7e9df3650b2cdf37b3451a09a862491984aa1502", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking unicode-xid v0.1.0 [INFO] [stderr] Checking quote v0.6.13 [INFO] [stderr] Checking hanger v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `b` and `eq` are never read [INFO] [stdout] --> src/lib.rs:46:13 [INFO] [stdout] | [INFO] [stdout] 45 | Before { [INFO] [stdout] | ------ fields in this variant [INFO] [stdout] 46 | b: before, [INFO] [stdout] | ^ [INFO] [stdout] 47 | eq: syn::Token![=], [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `a` and `eq` are never read [INFO] [stdout] --> src/lib.rs:51:13 [INFO] [stdout] | [INFO] [stdout] 50 | After { [INFO] [stdout] | ----- fields in this variant [INFO] [stdout] 51 | a: after, [INFO] [stdout] | ^ [INFO] [stdout] 52 | eq: syn::Token![=], [INFO] [stdout] | ^^ [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:95:12 [INFO] [stdout] | [INFO] [stdout] 79 | let mut hb = None; [INFO] [stdout] | -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 80 | let mut ha = None; [INFO] [stdout] | -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 95 | Ok(Hooks { [INFO] [stdout] | ____________^ [INFO] [stdout] 96 | | after: ha, [INFO] [stdout] 97 | | before: hb, [INFO] [stdout] 98 | | }) [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; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `b` and `eq` are never read [INFO] [stdout] --> src/lib.rs:46:13 [INFO] [stdout] | [INFO] [stdout] 45 | Before { [INFO] [stdout] | ------ fields in this variant [INFO] [stdout] 46 | b: before, [INFO] [stdout] | ^ [INFO] [stdout] 47 | eq: syn::Token![=], [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `a` and `eq` are never read [INFO] [stdout] --> src/lib.rs:51:13 [INFO] [stdout] | [INFO] [stdout] 50 | After { [INFO] [stdout] | ----- fields in this variant [INFO] [stdout] 51 | a: after, [INFO] [stdout] | ^ [INFO] [stdout] 52 | eq: syn::Token![=], [INFO] [stdout] | ^^ [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:95:12 [INFO] [stdout] | [INFO] [stdout] 79 | let mut hb = None; [INFO] [stdout] | -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 80 | let mut ha = None; [INFO] [stdout] | -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 95 | Ok(Hooks { [INFO] [stdout] | ____________^ [INFO] [stdout] 96 | | after: ha, [INFO] [stdout] 97 | | before: hb, [INFO] [stdout] 98 | | }) [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; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `hanger` (lib) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `hanger` (lib test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "2967c5d9a7f8ad10a8208b4a7e9df3650b2cdf37b3451a09a862491984aa1502", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2967c5d9a7f8ad10a8208b4a7e9df3650b2cdf37b3451a09a862491984aa1502", kill_on_drop: false }` [INFO] [stdout] 2967c5d9a7f8ad10a8208b4a7e9df3650b2cdf37b3451a09a862491984aa1502