[INFO] cloning repository https://github.com/UnHumbleBen/serde-tutorial [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/UnHumbleBen/serde-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUnHumbleBen%2Fserde-tutorial", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUnHumbleBen%2Fserde-tutorial'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cf3ef9af0f449ed6c74e67ce5a867643c7d38fab [INFO] checking UnHumbleBen/serde-tutorial/cf3ef9af0f449ed6c74e67ce5a867643c7d38fab against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUnHumbleBen%2Fserde-tutorial" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/UnHumbleBen/serde-tutorial 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 git repo https://github.com/UnHumbleBen/serde-tutorial [INFO] finished tweaking git repo https://github.com/UnHumbleBen/serde-tutorial [INFO] tweaked toml for git repo https://github.com/UnHumbleBen/serde-tutorial written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/UnHumbleBen/serde-tutorial already has a lockfile, it will not be regenerated [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-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0d30deff5b45b7d85ff89661d7d8029232648d45733b8099106f425dc1b42cdd [INFO] running `Command { std: "docker" "start" "-a" "0d30deff5b45b7d85ff89661d7d8029232648d45733b8099106f425dc1b42cdd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0d30deff5b45b7d85ff89661d7d8029232648d45733b8099106f425dc1b42cdd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0d30deff5b45b7d85ff89661d7d8029232648d45733b8099106f425dc1b42cdd", kill_on_drop: false }` [INFO] [stdout] 0d30deff5b45b7d85ff89661d7d8029232648d45733b8099106f425dc1b42cdd [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 107b4c35516c3266425272fa1c85900be1dcae6e46cc28a3046a310c125e8a74 [INFO] running `Command { std: "docker" "start" "-a" "107b4c35516c3266425272fa1c85900be1dcae6e46cc28a3046a310c125e8a74", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.1 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.3 [INFO] [stderr] Compiling serde v1.0.99 [INFO] [stderr] Compiling ryu v1.0.0 [INFO] [stderr] Checking itoa v0.4.4 [INFO] [stderr] Checking phantom-data v0.1.0 (/opt/rustwide/workdir/phantom-data) [INFO] [stdout] warning: struct `Iter` is never constructed [INFO] [stdout] --> phantom-data/src/main.rs:38:8 [INFO] [stdout] | [INFO] [stdout] 38 | struct Iter<'a, T: 'a> { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Vec` is never constructed [INFO] [stdout] --> phantom-data/src/main.rs:61:8 [INFO] [stdout] | [INFO] [stdout] 61 | struct Vec { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Iter` is never constructed [INFO] [stdout] --> phantom-data/src/main.rs:38:8 [INFO] [stdout] | [INFO] [stdout] 38 | struct Iter<'a, T: 'a> { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Vec` is never constructed [INFO] [stdout] --> phantom-data/src/main.rs:61:8 [INFO] [stdout] | [INFO] [stdout] 61 | struct Vec { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling serde_derive v1.0.99 [INFO] [stderr] Compiling serde_repr v0.1.5 [INFO] [stderr] Checking serde_json v1.0.40 [INFO] [stderr] Checking attributes v0.1.0 (/opt/rustwide/workdir/attributes) [INFO] [stderr] Checking implement-deserialize-for-a-custom-map-type v0.1.0 (/opt/rustwide/workdir/implement-deserialize-for-a-custom-map-type) [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] --> attributes/src/main.rs:30:21 [INFO] [stdout] | [INFO] [stdout] 30 | #[derive(Serialize, Deserialize)] [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] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] = note: this error originates in the macro `try` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `attributes` (bin "attributes" test) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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] --> attributes/src/main.rs:30:21 [INFO] [stdout] | [INFO] [stdout] 30 | #[derive(Serialize, Deserialize)] [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] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] = note: this error originates in the macro `try` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `attributes` (bin "attributes") due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "107b4c35516c3266425272fa1c85900be1dcae6e46cc28a3046a310c125e8a74", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "107b4c35516c3266425272fa1c85900be1dcae6e46cc28a3046a310c125e8a74", kill_on_drop: false }` [INFO] [stdout] 107b4c35516c3266425272fa1c85900be1dcae6e46cc28a3046a310c125e8a74