[INFO] fetching crate cpp_oop 0.1.9...
[INFO] checking cpp_oop-0.1.9 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate cpp_oop 0.1.9 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate cpp_oop 0.1.9
[INFO] finished tweaking crates.io crate cpp_oop 0.1.9
[INFO] tweaked toml for crates.io crate cpp_oop 0.1.9 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cpp_oop 0.1.9 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 13 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07f8bbd31deb1a53a08f9a2bd0d99ff58cdc9a92bef848ddd4e3d1f289a99217
[INFO] running `Command { std: "docker" "start" "-a" "07f8bbd31deb1a53a08f9a2bd0d99ff58cdc9a92bef848ddd4e3d1f289a99217", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07f8bbd31deb1a53a08f9a2bd0d99ff58cdc9a92bef848ddd4e3d1f289a99217", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07f8bbd31deb1a53a08f9a2bd0d99ff58cdc9a92bef848ddd4e3d1f289a99217", kill_on_drop: false }`
[INFO] [stdout] 07f8bbd31deb1a53a08f9a2bd0d99ff58cdc9a92bef848ddd4e3d1f289a99217
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78fff2785f7ba834af759fcf3bb165de1eb56879fcc46371ea4b743d01e57fa1
[INFO] running `Command { std: "docker" "start" "-a" "78fff2785f7ba834af759fcf3bb165de1eb56879fcc46371ea4b743d01e57fa1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling cpp_oop_macros v0.1.9
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cpp_oop_macros-0.1.9/src/handlers/generators.rs:323:29
[INFO] [stdout]     |
[INFO] [stdout] 323 |         let const_body = if let Some(first_arg) = inputs.first()
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cpp_oop_macros-0.1.9/src/handlers/generators.rs:324:16
[INFO] [stdout]     |
[INFO] [stdout] 324 |             && let Type::Reference(ty) = &first_arg.ty
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cpp_oop_macros-0.1.9/src/handlers/generators.rs:438:29
[INFO] [stdout]     |
[INFO] [stdout] 438 |         let const_body = if let Some(FnArg::Receiver(first_arg)) = inputs.first()
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cpp_oop_macros-0.1.9/src/handlers/generators.rs:439:16
[INFO] [stdout]     |
[INFO] [stdout] 439 |             && let Type::Reference(ty) = &*first_arg.ty
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cpp_oop_macros-0.1.9/src/handlers/generators.rs:605:8
[INFO] [stdout]     |
[INFO] [stdout] 605 |       if let Some(BaseImplProps {
[INFO] [stdout]     |  ________^
[INFO] [stdout] 606 | |         fns,
[INFO] [stdout] 607 | |         base_vtable_name,
[INFO] [stdout] 608 | |         ..
[INFO] [stdout] 609 | |     }) = impl_bases_inner.first()
[INFO] [stdout]     | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cpp_oop_macros-0.1.9/src/handlers/parsers.rs:279:40
[INFO] [stdout]     |
[INFO] [stdout] 279 | ...                   && let FnArg::Typed(arg) = arg
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cpp_oop_macros-0.1.9/src/handlers/parsers.rs:280:40
[INFO] [stdout]     |
[INFO] [stdout] 280 | ...                   && let Type::Reference(ty) = &*arg.ty
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cpp_oop_macros` (lib) due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "78fff2785f7ba834af759fcf3bb165de1eb56879fcc46371ea4b743d01e57fa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78fff2785f7ba834af759fcf3bb165de1eb56879fcc46371ea4b743d01e57fa1", kill_on_drop: false }`
[INFO] [stdout] 78fff2785f7ba834af759fcf3bb165de1eb56879fcc46371ea4b743d01e57fa1