[INFO] fetching crate linked-syntax-tree 0.2.0...
[INFO] checking linked-syntax-tree-0.2.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] extracting crate linked-syntax-tree 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate linked-syntax-tree 0.2.0 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 linked-syntax-tree 0.2.0
[INFO] finished tweaking crates.io crate linked-syntax-tree 0.2.0
[INFO] tweaked toml for crates.io crate linked-syntax-tree 0.2.0 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] 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] 5079efed98853457e3c861c9c7e91418e8c59c7361c2463b923eaf144c3c19e6
[INFO] running `Command { std: "docker" "start" "-a" "5079efed98853457e3c861c9c7e91418e8c59c7361c2463b923eaf144c3c19e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5079efed98853457e3c861c9c7e91418e8c59c7361c2463b923eaf144c3c19e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5079efed98853457e3c861c9c7e91418e8c59c7361c2463b923eaf144c3c19e6", kill_on_drop: false }`
[INFO] [stdout] 5079efed98853457e3c861c9c7e91418e8c59c7361c2463b923eaf144c3c19e6
[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] 6b9b5ffde39fe4ed1604d2a9aaa3d5a5a6ebca48062d6ce2b7bd90e4367e749f
[INFO] running `Command { std: "docker" "start" "-a" "6b9b5ffde39fe4ed1604d2a9aaa3d5a5a6ebca48062d6ce2b7bd90e4367e749f", kill_on_drop: false }`
[INFO] [stderr]     Checking linked-syntax-tree v0.2.0 (/opt/rustwide/workdir)
[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:537:53
[INFO] [stdout]     |
[INFO] [stdout] 537 |             unsafe { current.as_ref().next.map(|n| &n.as_ref().element) }
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/lib.rs:564:42
[INFO] [stdout]     |
[INFO] [stdout] 564 |             .map(|p| unsafe { p.map(|p| &p.as_ref().element) })
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[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:578:54
[INFO] [stdout]     |
[INFO] [stdout] 578 |             unsafe { current.as_ref().child.map(|n| &n.as_ref().element) }
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[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:844:53
[INFO] [stdout]     |
[INFO] [stdout] 844 |             unsafe { current.as_ref().next.map(|n| &n.as_ref().element) }
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[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:871:42
[INFO] [stdout]     |
[INFO] [stdout] 871 |             .map(|p| unsafe { p.map(|p| &p.as_ref().element) })
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[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:885:54
[INFO] [stdout]     |
[INFO] [stdout] 885 |             unsafe { current.as_ref().child.map(|n| &n.as_ref().element) }
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[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:1109:53
[INFO] [stdout]      |
[INFO] [stdout] 1109 |             unsafe { current.as_ref().next.map(|n| &n.as_ref().element) }
[INFO] [stdout]      |                                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this changes meaning in Rust 2024
[INFO] [stdout]      = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[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:1140:42
[INFO] [stdout]      |
[INFO] [stdout] 1140 |             .map(|p| unsafe { p.map(|p| &p.as_ref().element) })
[INFO] [stdout]      |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this changes meaning in Rust 2024
[INFO] [stdout]      = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[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:1147:54
[INFO] [stdout]      |
[INFO] [stdout] 1147 |             unsafe { current.as_ref().child.map(|n| &n.as_ref().element) }
[INFO] [stdout]      |                                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this changes meaning in Rust 2024
[INFO] [stdout]      = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `linked-syntax-tree` (lib) due to 10 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]    --> src/lib.rs:537:53
[INFO] [stdout]     |
[INFO] [stdout] 537 |             unsafe { current.as_ref().next.map(|n| &n.as_ref().element) }
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/lib.rs:564:42
[INFO] [stdout]     |
[INFO] [stdout] 564 |             .map(|p| unsafe { p.map(|p| &p.as_ref().element) })
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[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:578:54
[INFO] [stdout]     |
[INFO] [stdout] 578 |             unsafe { current.as_ref().child.map(|n| &n.as_ref().element) }
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[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:844:53
[INFO] [stdout]     |
[INFO] [stdout] 844 |             unsafe { current.as_ref().next.map(|n| &n.as_ref().element) }
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[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:871:42
[INFO] [stdout]     |
[INFO] [stdout] 871 |             .map(|p| unsafe { p.map(|p| &p.as_ref().element) })
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[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:885:54
[INFO] [stdout]     |
[INFO] [stdout] 885 |             unsafe { current.as_ref().child.map(|n| &n.as_ref().element) }
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[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:1109:53
[INFO] [stdout]      |
[INFO] [stdout] 1109 |             unsafe { current.as_ref().next.map(|n| &n.as_ref().element) }
[INFO] [stdout]      |                                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this changes meaning in Rust 2024
[INFO] [stdout]      = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[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:1140:42
[INFO] [stdout]      |
[INFO] [stdout] 1140 |             .map(|p| unsafe { p.map(|p| &p.as_ref().element) })
[INFO] [stdout]      |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this changes meaning in Rust 2024
[INFO] [stdout]      = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[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:1147:54
[INFO] [stdout]      |
[INFO] [stdout] 1147 |             unsafe { current.as_ref().child.map(|n| &n.as_ref().element) }
[INFO] [stdout]      |                                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this changes meaning in Rust 2024
[INFO] [stdout]      = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `linked-syntax-tree` (lib test) due to 10 previous errors
[INFO] running `Command { std: "docker" "inspect" "6b9b5ffde39fe4ed1604d2a9aaa3d5a5a6ebca48062d6ce2b7bd90e4367e749f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b9b5ffde39fe4ed1604d2a9aaa3d5a5a6ebca48062d6ce2b7bd90e4367e749f", kill_on_drop: false }`
[INFO] [stdout] 6b9b5ffde39fe4ed1604d2a9aaa3d5a5a6ebca48062d6ce2b7bd90e4367e749f