[INFO] fetching crate dark-std 0.2.16...
[INFO] checking dark-std-0.2.16 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate dark-std 0.2.16 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate dark-std 0.2.16 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 dark-std 0.2.16
[INFO] finished tweaking crates.io crate dark-std 0.2.16
[INFO] tweaked toml for crates.io crate dark-std 0.2.16 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 56 packages to latest compatible versions
[INFO] [stderr]       Adding hermit-abi v0.3.9 (available: v0.4.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[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-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0fe2c47ab643079f8bd40401d15afaa0862871420959416deef96beb4c2eb6d
[INFO] running `Command { std: "docker" "start" "-a" "b0fe2c47ab643079f8bd40401d15afaa0862871420959416deef96beb4c2eb6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0fe2c47ab643079f8bd40401d15afaa0862871420959416deef96beb4c2eb6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0fe2c47ab643079f8bd40401d15afaa0862871420959416deef96beb4c2eb6d", kill_on_drop: false }`
[INFO] [stdout] b0fe2c47ab643079f8bd40401d15afaa0862871420959416deef96beb4c2eb6d
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eea8971c510e1c39242589167c41332b71e48ebffb981a776d69a775e5c68a3b
[INFO] running `Command { std: "docker" "start" "-a" "eea8971c510e1c39242589167c41332b71e48ebffb981a776d69a775e5c68a3b", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]     Checking indexmap v2.5.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.13
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking tokio v1.40.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking dark-std v0.2.16 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]   --> tests/btree.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |     assert_eq!(2, *g.deref());
[INFO] [stdout]    |                     ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `i32` does not implement `Deref`, so calling `deref` on `&i32` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this value of type `VecIterMut<'_, i32>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> tests/vec.rs:121:14
[INFO] [stdout]     |
[INFO] [stdout] 119 |     let m = SyncVec::<i32>::new();
[INFO] [stdout]     |         - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 120 |     m.push(2);
[INFO] [stdout] 121 |     for v in m.iter_mut() {
[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] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dark-std` (test "vec") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `rev`
[INFO] [stdout]   --> benches/bench_rw_vec.rs:79:16
[INFO] [stdout]    |
[INFO] [stdout] 79 |     let (send, rev) = crossbeam::channel::unbounded();
[INFO] [stdout]    |                ^^^ help: if this is intentional, prefix it with an underscore: `_rev`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this value of type `dark_std::sync::map_index::HashIterMut<'_, i32, i32>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> tests/index_map.rs:171:19
[INFO] [stdout]     |
[INFO] [stdout] 169 |     let m = SyncIndexMap::<i32, i32>::new();
[INFO] [stdout]     |         - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 170 |     m.insert(1, 2);
[INFO] [stdout] 171 |     for (k, v) in m.iter_mut() {
[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: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dark-std` (test "index_map") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "eea8971c510e1c39242589167c41332b71e48ebffb981a776d69a775e5c68a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eea8971c510e1c39242589167c41332b71e48ebffb981a776d69a775e5c68a3b", kill_on_drop: false }`
[INFO] [stdout] eea8971c510e1c39242589167c41332b71e48ebffb981a776d69a775e5c68a3b