[INFO] fetching crate debug_tree 0.4.0...
[INFO] checking debug_tree-0.4.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate debug_tree 0.4.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate debug_tree 0.4.0 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate debug_tree 0.4.0
[INFO] finished tweaking crates.io crate debug_tree 0.4.0
[INFO] tweaked toml for crates.io crate debug_tree 0.4.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate debug_tree 0.4.0 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a4b3b351e22d4ef3e35419fcd5bc7a1b168b2de1874bb5a9d21467cb7edbaf0
[INFO] running `Command { std: "docker" "start" "-a" "0a4b3b351e22d4ef3e35419fcd5bc7a1b168b2de1874bb5a9d21467cb7edbaf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a4b3b351e22d4ef3e35419fcd5bc7a1b168b2de1874bb5a9d21467cb7edbaf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a4b3b351e22d4ef3e35419fcd5bc7a1b168b2de1874bb5a9d21467cb7edbaf0", kill_on_drop: false }`
[INFO] [stdout] 0a4b3b351e22d4ef3e35419fcd5bc7a1b168b2de1874bb5a9d21467cb7edbaf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8cc4188ecc620e27fb2dc94a17547d5456358f7803924623d0dd4c065e83b2dd
[INFO] running `Command { std: "docker" "start" "-a" "8cc4188ecc620e27fb2dc94a17547d5456358f7803924623d0dd4c065e83b2dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]     Checking pin-project-lite v0.1.4
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking debug_tree v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this value of type `MutexGuard<'_, BTreeMap<String, TreeBuilder>>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lib.rs:511:5
[INFO] [stdout]     |
[INFO] [stdout] 510 | pub(crate) fn get_tree<T: AsRef<str>>(name: T) -> Option<TreeBuilder> {
[INFO] [stdout]     |                                       ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 511 |     TREE_MAP.lock().unwrap().get(name.as_ref()).cloned()
[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: this value of type `TreeBuilder` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lib.rs:573:5
[INFO] [stdout]     |
[INFO] [stdout] 572 | pub fn string<T: AsRef<str>>(name: T) -> String {
[INFO] [stdout]     |                              ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 573 |     name.as_tree().string()
[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: this value of type `TreeBuilder` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lib.rs:579:5
[INFO] [stdout]     |
[INFO] [stdout] 578 | pub fn peek_string<T: AsRef<str>>(name: T) -> String {
[INFO] [stdout]     |                                   ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 579 |     name.as_tree().peek_string()
[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: this value of type `TreeBuilder` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lib.rs:597:5
[INFO] [stdout]     |
[INFO] [stdout] 596 | pub fn write<T: AsRef<str>, P: AsRef<str>>(name: T, path: P) -> std::io::Result<()> {
[INFO] [stdout]     |                                            ----     ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout]     |                                            |
[INFO] [stdout]     |                                            these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 597 |     name.as_tree().write(path.as_ref())
[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: this value of type `TreeBuilder` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lib.rs:603:5
[INFO] [stdout]     |
[INFO] [stdout] 602 | pub fn peek_write<T: AsRef<str>, P: AsRef<str>>(name: T, path: P) -> std::io::Result<()> {
[INFO] [stdout]     |                                                 ----     ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout]     |                                                 |
[INFO] [stdout]     |                                                 these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 603 |     name.as_tree().peek_write(path.as_ref())
[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 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `debug_tree` (lib) due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8cc4188ecc620e27fb2dc94a17547d5456358f7803924623d0dd4c065e83b2dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cc4188ecc620e27fb2dc94a17547d5456358f7803924623d0dd4c065e83b2dd", kill_on_drop: false }`
[INFO] [stdout] 8cc4188ecc620e27fb2dc94a17547d5456358f7803924623d0dd4c065e83b2dd