[INFO] fetching crate num_identities_const 0.1.0...
[INFO] testing num_identities_const-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate num_identities_const 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate num_identities_const 0.1.0
[INFO] finished tweaking crates.io crate num_identities_const 0.1.0
[INFO] tweaked toml for crates.io crate num_identities_const 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate num_identities_const 0.1.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] [stderr]       Adding fn_zip v0.1.2 (available: v0.2.4)
[INFO] [stderr]       Adding moddef v0.2.6 (available: v0.3.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c9bc1d34ef9adf264e89f55c0715685b3b8be50b201af2a08b6f7be3abdd0af
[INFO] running `Command { std: "docker" "start" "-a" "9c9bc1d34ef9adf264e89f55c0715685b3b8be50b201af2a08b6f7be3abdd0af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c9bc1d34ef9adf264e89f55c0715685b3b8be50b201af2a08b6f7be3abdd0af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c9bc1d34ef9adf264e89f55c0715685b3b8be50b201af2a08b6f7be3abdd0af", kill_on_drop: false }`
[INFO] [stdout] 9c9bc1d34ef9adf264e89f55c0715685b3b8be50b201af2a08b6f7be3abdd0af
[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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b65eebf57cac45721a391596a4c945260cbcade5bd266d6b4bcb7621a3d45346
[INFO] running `Command { std: "docker" "start" "-a" "b65eebf57cac45721a391596a4c945260cbcade5bd266d6b4bcb7621a3d45346", kill_on_drop: false }`
[INFO] [stderr]    Compiling tupleops-generator v0.1.0
[INFO] [stderr]    Compiling moddef v0.2.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling tupleops-macros v0.1.0
[INFO] [stderr]    Compiling tupleops v0.1.1
[INFO] [stderr]    Compiling fn_zip v0.1.2
[INFO] [stdout] error: cannot find attribute `const_trait` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fn_zip-0.1.2/src/zip.rs:31:3
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[const_trait]
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `const_destruct`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fn_zip-0.1.2/src/zipped_fn.rs:1:41
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::{marker::{Tuple, PhantomData, Destruct}, mem::ManuallyDrop};
[INFO] [stdout]   |                                         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
[INFO] [stdout]   = help: add `#![feature(const_destruct)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `const_destruct`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fn_zip-0.1.2/src/zipped_fn.rs:50:44
[INFO] [stdout]    |
[INFO] [stdout] 50 |     LF: /*~const*/ FnOnce<LX> + /*~const*/ Destruct,
[INFO] [stdout]    |                                            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
[INFO] [stdout]    = help: add `#![feature(const_destruct)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `const_destruct`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fn_zip-0.1.2/src/zipped_fn.rs:51:44
[INFO] [stdout]    |
[INFO] [stdout] 51 |     RF: /*~const*/ FnOnce<RX> + /*~const*/ Destruct,
[INFO] [stdout]    |                                            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
[INFO] [stdout]    = help: add `#![feature(const_destruct)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `const_destruct`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fn_zip-0.1.2/src/zipped_fn.rs:67:43
[INFO] [stdout]    |
[INFO] [stdout] 67 |     LF: /*~const*/ FnMut<LX> + /*~const*/ Destruct,
[INFO] [stdout]    |                                           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
[INFO] [stdout]    = help: add `#![feature(const_destruct)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `const_destruct`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fn_zip-0.1.2/src/zipped_fn.rs:68:43
[INFO] [stdout]    |
[INFO] [stdout] 68 |     RF: /*~const*/ FnMut<RX> + /*~const*/ Destruct,
[INFO] [stdout]    |                                           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
[INFO] [stdout]    = help: add `#![feature(const_destruct)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `const_destruct`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fn_zip-0.1.2/src/zipped_fn.rs:82:40
[INFO] [stdout]    |
[INFO] [stdout] 82 |     LF: /*~const*/ Fn<LX> + /*~const*/ Destruct,
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
[INFO] [stdout]    = help: add `#![feature(const_destruct)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `const_destruct`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fn_zip-0.1.2/src/zipped_fn.rs:83:40
[INFO] [stdout]    |
[INFO] [stdout] 83 |     RF: /*~const*/ Fn<RX> + /*~const*/ Destruct,
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
[INFO] [stdout]    = help: add `#![feature(const_destruct)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-03-22; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: const `impl` for trait `FnZip` which is not `const`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fn_zip-0.1.2/src/zip.rs:39:28
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl<RX, LX, LF, RF> const FnZip<RX, LX, RF> for LF
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^ this trait is not `const`
[INFO] [stdout]    |
[INFO] [stdout]    = note: marking a trait with `const` ensures all default method bodies are `const`
[INFO] [stdout]    = note: adding a non-const method body in the future would be a breaking change
[INFO] [stdout] help: mark `FnZip` as `const` to allow it to have `const` implementations
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub const trait FnZip<RX, LX, Rhs>
[INFO] [stdout]    |     +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fn_zip` (lib) due to 9 previous errors
[INFO] running `Command { std: "docker" "inspect" "b65eebf57cac45721a391596a4c945260cbcade5bd266d6b4bcb7621a3d45346", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b65eebf57cac45721a391596a4c945260cbcade5bd266d6b4bcb7621a3d45346", kill_on_drop: false }`
[INFO] [stdout] b65eebf57cac45721a391596a4c945260cbcade5bd266d6b4bcb7621a3d45346