[INFO] fetching crate switchstring 0.1.1...
[INFO] checking switchstring-0.1.1 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] extracting crate switchstring 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate switchstring 0.1.1 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 switchstring 0.1.1
[INFO] finished tweaking crates.io crate switchstring 0.1.1
[INFO] tweaked toml for crates.io crate switchstring 0.1.1 written to /workspace/builds/worker-7-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 2 packages to latest compatible versions
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b418d83a423708f21f5e4f5f9adfe662dfc73439df4a30cf9e65023d0b406593
[INFO] running `Command { std: "docker" "start" "-a" "b418d83a423708f21f5e4f5f9adfe662dfc73439df4a30cf9e65023d0b406593", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b418d83a423708f21f5e4f5f9adfe662dfc73439df4a30cf9e65023d0b406593", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b418d83a423708f21f5e4f5f9adfe662dfc73439df4a30cf9e65023d0b406593", kill_on_drop: false }`
[INFO] [stdout] b418d83a423708f21f5e4f5f9adfe662dfc73439df4a30cf9e65023d0b406593
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 2b2b5950ef11c278eb9ab693f424a74858fe1df7698df04ec5954a8d0a7aa2c1
[INFO] running `Command { std: "docker" "start" "-a" "2b2b5950ef11c278eb9ab693f424a74858fe1df7698df04ec5954a8d0a7aa2c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking switchstring v0.1.1 (/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:132:19
[INFO] [stdout]     |
[INFO] [stdout] 126 |     fn neg(self) -> Self::Output {
[INFO] [stdout]     |            ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 132 |             prev: self.prev.clone(),
[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:141:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn add(self, rhs: &str) -> Self::Output {
[INFO] [stdout]     |            ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 141 |         Switchstring::from(rhs).prepend(&self)
[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:149:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |     fn add(self, rhs: String) -> Self::Output {
[INFO] [stdout]     |            ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 149 |         Switchstring::from(rhs).prepend(&self)
[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:189:16
[INFO] [stdout]     |
[INFO] [stdout] 188 |     fn sub(self, rhs: Switchstring<'a>) -> Self::Output {
[INFO] [stdout]     |            ----  --------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]     |            |
[INFO] [stdout]     |            these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 189 |         self + -rhs
[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:197:16
[INFO] [stdout]     |
[INFO] [stdout] 196 |     fn sub(self, rhs: &Switchstring<'a>) -> Self::Output {
[INFO] [stdout]     |            ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 197 |         self + -rhs
[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:235:16
[INFO] [stdout]     |
[INFO] [stdout] 234 |     fn sub(self, rhs: String) -> Self::Output {
[INFO] [stdout]     |            ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 235 |         self + -Switchstring::from(rhs)
[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:243:16
[INFO] [stdout]     |
[INFO] [stdout] 242 |     fn sub(self, rhs: &str) -> Self::Output {
[INFO] [stdout]     |            ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 243 |         self + -Switchstring::from(rhs)
[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:259:16
[INFO] [stdout]     |
[INFO] [stdout] 258 |     fn sub(self, rhs: Switchstring<'a>) -> Self::Output {
[INFO] [stdout]     |                  --------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 259 |         self + -rhs
[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 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `switchstring` (lib) due to 9 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2b2b5950ef11c278eb9ab693f424a74858fe1df7698df04ec5954a8d0a7aa2c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b2b5950ef11c278eb9ab693f424a74858fe1df7698df04ec5954a8d0a7aa2c1", kill_on_drop: false }`
[INFO] [stdout] 2b2b5950ef11c278eb9ab693f424a74858fe1df7698df04ec5954a8d0a7aa2c1