[INFO] cloning repository https://github.com/KaranSingh52ED/rust_to_cpp_through_cxx_fibonacci
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KaranSingh52ED/rust_to_cpp_through_cxx_fibonacci" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaranSingh52ED%2Frust_to_cpp_through_cxx_fibonacci", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaranSingh52ED%2Frust_to_cpp_through_cxx_fibonacci'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5caa268c025d3fd16e33be8ef13446bbfde9edba
[INFO] fixing KaranSingh52ED/rust_to_cpp_through_cxx_fibonacci against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=end=2015,2024 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaranSingh52ED%2Frust_to_cpp_through_cxx_fibonacci" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/KaranSingh52ED/rust_to_cpp_through_cxx_fibonacci
[INFO] finished tweaking git repo https://github.com/KaranSingh52ED/rust_to_cpp_through_cxx_fibonacci
[INFO] tweaked toml for git repo https://github.com/KaranSingh52ED/rust_to_cpp_through_cxx_fibonacci written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KaranSingh52ED/rust_to_cpp_through_cxx_fibonacci on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KaranSingh52ED/rust_to_cpp_through_cxx_fibonacci 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a7921ec6d9ccac1bbea17252d5919e2f42565277a54463cbf0144369cf2dd042
[INFO] running `Command { std: "docker" "start" "a7921ec6d9ccac1bbea17252d5919e2f42565277a54463cbf0144369cf2dd042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a7921ec6d9ccac1bbea17252d5919e2f42565277a54463cbf0144369cf2dd042" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7921ec6d9ccac1bbea17252d5919e2f42565277a54463cbf0144369cf2dd042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a7921ec6d9ccac1bbea17252d5919e2f42565277a54463cbf0144369cf2dd042" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=end=2015,2024", kill_on_drop: false }`
[INFO] [stderr] crater-edition-check: migrating to next edition
[INFO] [stderr]    Migrating Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]    Compiling scratch v1.0.7
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling cxxbridge-flags v1.0.119
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]    Compiling link-cplusplus v1.0.9
[INFO] [stderr]    Compiling cxx v1.0.119
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling cxx-build v1.0.119
[INFO] [stderr]    Compiling cxxbridge-macro v1.0.119
[INFO] [stderr]    Compiling cxx-fibSeq v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Migrating build.rs from 2021 edition to 2024
[INFO] [stderr] warning: cxx-fibSeq@0.1.0: Compiler version doesn't include clang or GCC: "c++" "--version"
[INFO] [stderr] warning: cxx-fibSeq@0.1.0: Compiler version doesn't include clang or GCC: "c++" "--version"
[INFO] [stderr]    Migrating src/main.rs from 2021 edition to 2024
[INFO] [stdout] warning: extern blocks should be unsafe
[INFO] [stdout]  --> src/main.rs:8:41
[INFO] [stdout]   |
[INFO] [stdout] 8 |         fn fibonacci(n: i32) -> Vec<i32>;
[INFO] [stdout]   |                                         ^
[INFO] [stdout]   |                                         |
[INFO] [stdout]   |                                         help: needs `unsafe` before the extern keyword: `unsafe`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2021) but is a hard error in Rust 2024!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-extern.html>
[INFO] [stdout]   = note: `--force-warn missing-unsafe-on-extern` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: errors present after applying fixes to crate `cxx_fibSeq`
[INFO] [stderr]  --> src/main.rs
[INFO] [stderr]   = cause: error: expected one of `!`, `+`, `::`, `;`, `where`, or `{`, found keyword `unsafe`
[INFO] [stderr]             --> src/main.rs:8:41
[INFO] [stderr]              |
[INFO] [stderr]            5 |     unsafe extern "C++" {
[INFO] [stderr]              |                         - while parsing this item list starting here
[INFO] [stderr]            ...
[INFO] [stderr]            8 |         fn fibonacci(n: i32) -> Vec<i32>unsafe ;
[INFO] [stderr]              |                                         ^^^^^^ expected one of `!`, `+`, `::`, `;`, `where`, or `{`
[INFO] [stderr]            9 |     }
[INFO] [stderr]              |     - the item list ends here
[INFO] [stderr]            
[INFO] [stderr]            
[INFO] [stderr]            error: expected `;`
[INFO] [stderr]             --> src/main.rs:8:41
[INFO] [stderr]              |
[INFO] [stderr]            8 |         fn fibonacci(n: i32) -> Vec<i32>unsafe ;
[INFO] [stderr]              |                                         ^^^^^^
[INFO] [stderr]            
[INFO] [stderr]            
[INFO] [stderr]            error: aborting due to 2 previous errors
[INFO] [stderr] help: to report this as a bug, open an issue at https://github.com/rust-lang/rust/issues, quoting the full output of this command
[INFO] [stderr] help: to possibly apply more fixes, pass in the `--broken-code` flag
[INFO] [stderr] note: original diagnostics will follow:
[INFO] [stderr] error: errors present after applying fixes to crate `cxx_fibSeq`
[INFO] [stderr]  --> src/main.rs
[INFO] [stderr]   = cause: error: expected one of `!`, `+`, `::`, `;`, `where`, or `{`, found keyword `unsafe`
[INFO] [stderr]             --> src/main.rs:8:41
[INFO] [stderr]              |
[INFO] [stderr]            5 |     unsafe extern "C++" {
[INFO] [stderr]              |                         - while parsing this item list starting here
[INFO] [stderr]            ...
[INFO] [stderr]            8 |         fn fibonacci(n: i32) -> Vec<i32>unsafe ;
[INFO] [stderr]              |                                         ^^^^^^ expected one of `!`, `+`, `::`, `;`, `where`, or `{`
[INFO] [stderr]            9 |     }
[INFO] [stderr]              |     - the item list ends here
[INFO] [stderr]            
[INFO] [stderr]            
[INFO] [stderr]            error: expected `;`
[INFO] [stderr]             --> src/main.rs:8:41
[INFO] [stderr]              |
[INFO] [stderr]            8 |         fn fibonacci(n: i32) -> Vec<i32>unsafe ;
[INFO] [stderr]              |                                         ^^^^^^
[INFO] [stderr]            
[INFO] [stderr]            
[INFO] [stderr]            error: aborting due to 2 previous errors
[INFO] [stderr] help: to report this as a bug, open an issue at https://github.com/rust-lang/rust/issues, quoting the full output of this command
[INFO] [stderr] help: to possibly apply more fixes, pass in the `--broken-code` flag
[INFO] [stderr] note: original diagnostics will follow:
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.19s
[INFO] [stderr] crater-edition-check: cxx-fibSeq v0.1.0 (/opt/rustwide/workdir) updating edition from 2021 to 2024
[INFO] [stdout] warning: extern blocks should be unsafe
[INFO] [stdout]  --> src/main.rs:8:41
[INFO] [stdout]   |
[INFO] [stdout] 8 |         fn fibonacci(n: i32) -> Vec<i32>;
[INFO] [stdout]   |                                         ^
[INFO] [stdout]   |                                         |
[INFO] [stdout]   |                                         help: needs `unsafe` before the extern keyword: `unsafe`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2021) but is a hard error in Rust 2024!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-extern.html>
[INFO] [stdout]   = note: `--force-warn missing-unsafe-on-extern` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cxx-fibSeq v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: cxx-fibSeq@0.1.0: Compiler version doesn't include clang or GCC: "c++" "--version"
[INFO] [stderr] warning: cxx-fibSeq@0.1.0: Compiler version doesn't include clang or GCC: "c++" "--version"
[INFO] [stdout] error: extern blocks must be unsafe
[INFO] [stdout]  --> src/main.rs:8:41
[INFO] [stdout]   |
[INFO] [stdout] 8 |         fn fibonacci(n: i32) -> Vec<i32>;
[INFO] [stdout]   |                                         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: cxx-fibSeq@0.1.0: Compiler version doesn't include clang or GCC: "c++" "--version"
[INFO] [stderr] warning: cxx-fibSeq@0.1.0: Compiler version doesn't include clang or GCC: "c++" "--version"
[INFO] [stderr] error: could not compile `cxx-fibSeq` (bin "cxx-fibSeq") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: extern blocks must be unsafe
[INFO] [stdout]  --> src/main.rs:8:41
[INFO] [stdout]   |
[INFO] [stdout] 8 |         fn fibonacci(n: i32) -> Vec<i32>;
[INFO] [stdout]   |                                         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: cxx-fibSeq@0.1.0: Compiler version doesn't include clang or GCC: "c++" "--version"
[INFO] [stderr] warning: cxx-fibSeq@0.1.0: Compiler version doesn't include clang or GCC: "c++" "--version"
[INFO] [stderr] error: could not compile `cxx-fibSeq` (bin "cxx-fibSeq" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "a7921ec6d9ccac1bbea17252d5919e2f42565277a54463cbf0144369cf2dd042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7921ec6d9ccac1bbea17252d5919e2f42565277a54463cbf0144369cf2dd042", kill_on_drop: false }`
[INFO] [stdout] a7921ec6d9ccac1bbea17252d5919e2f42565277a54463cbf0144369cf2dd042
