[INFO] fetching crate flexi_func_declarative 0.2.7...
[INFO] testing flexi_func_declarative-0.2.7 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate flexi_func_declarative 0.2.7 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate flexi_func_declarative 0.2.7
[INFO] finished tweaking crates.io crate flexi_func_declarative 0.2.7
[INFO] tweaked toml for crates.io crate flexi_func_declarative 0.2.7 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate flexi_func_declarative 0.2.7 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "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" "+beta-2026-01-20" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fc6eb9d31d2c767ae9a9517eb5e374e53e3840be1f413f1fdfa96c8d74d9241
[INFO] running `Command { std: "docker" "start" "-a" "6fc6eb9d31d2c767ae9a9517eb5e374e53e3840be1f413f1fdfa96c8d74d9241", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fc6eb9d31d2c767ae9a9517eb5e374e53e3840be1f413f1fdfa96c8d74d9241", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fc6eb9d31d2c767ae9a9517eb5e374e53e3840be1f413f1fdfa96c8d74d9241", kill_on_drop: false }`
[INFO] [stdout] 6fc6eb9d31d2c767ae9a9517eb5e374e53e3840be1f413f1fdfa96c8d74d9241
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80fa269a7389228964a014f7575bdd32782a1531b1927cb93bf52556a2210993
[INFO] running `Command { std: "docker" "start" "-a" "80fa269a7389228964a014f7575bdd32782a1531b1927cb93bf52556a2210993", kill_on_drop: false }`
[INFO] [stderr]    Compiling flexi_func_declarative v0.2.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "80fa269a7389228964a014f7575bdd32782a1531b1927cb93bf52556a2210993", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80fa269a7389228964a014f7575bdd32782a1531b1927cb93bf52556a2210993", kill_on_drop: false }`
[INFO] [stdout] 80fa269a7389228964a014f7575bdd32782a1531b1927cb93bf52556a2210993
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 216109d2d7f174f91608b91eceb6b146f181421ebf66a1e51bf7a4a2c6c598cf
[INFO] running `Command { std: "docker" "start" "-a" "216109d2d7f174f91608b91eceb6b146f181421ebf66a1e51bf7a4a2c6c598cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling flexi_func_declarative v0.2.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "216109d2d7f174f91608b91eceb6b146f181421ebf66a1e51bf7a4a2c6c598cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "216109d2d7f174f91608b91eceb6b146f181421ebf66a1e51bf7a4a2c6c598cf", kill_on_drop: false }`
[INFO] [stdout] 216109d2d7f174f91608b91eceb6b146f181421ebf66a1e51bf7a4a2c6c598cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4d3ed58e5da7388a9024fd6b0ae3b8ea6bf0cc57c2468792075b5c139c2c25a7
[INFO] running `Command { std: "docker" "start" "-a" "4d3ed58e5da7388a9024fd6b0ae3b8ea6bf0cc57c2468792075b5c139c2c25a7", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/flexi_func_declarative-9c23fd3bda13d9c6)
[INFO] [stderr]    Doc-tests flexi_func_declarative
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - fb (line 86) ... FAILED
[INFO] [stdout] test src/lib.rs - fb (line 50) ... FAILED
[INFO] [stdout] test src/lib.rs - fb (line 28) ... FAILED
[INFO] [stdout] test src/lib.rs - fb (line 10) ... FAILED
[INFO] [stdout] test src/lib.rs - fb (line 36) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - fb (line 86) stdout ----
[INFO] [stdout] error: unknown start of token: `
[INFO] [stdout]   --> src/lib.rs:88:19
[INFO] [stdout]    |
[INFO] [stdout] 88 | By leveraging the `fb!` macro in your Rust projects, you can maintain cleaner and more maintainable codebases, especially when deali...
[INFO] [stdout]    |                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
[INFO] [stdout]    |
[INFO] [stdout] 88 - By leveraging the `fb!` macro in your Rust projects, you can maintain cleaner and more maintainable codebases, especially when dealing with the complexities of synchronous and asynchronous programming patterns.
[INFO] [stdout] 88 + By leveraging the 'fb!` macro in your Rust projects, you can maintain cleaner and more maintainable codebases, especially when dealing with the complexities of synchronous and asynchronous programming patterns.
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: `
[INFO] [stdout]   --> src/lib.rs:88:23
[INFO] [stdout]    |
[INFO] [stdout] 88 | By leveraging the `fb!` macro in your Rust projects, you can maintain cleaner and more maintainable codebases, especially when deali...
[INFO] [stdout]    |                       ^
[INFO] [stdout]    |
[INFO] [stdout] help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
[INFO] [stdout]    |
[INFO] [stdout] 88 - By leveraging the `fb!` macro in your Rust projects, you can maintain cleaner and more maintainable codebases, especially when dealing with the complexities of synchronous and asynchronous programming patterns.
[INFO] [stdout] 88 + By leveraging the `fb!' macro in your Rust projects, you can maintain cleaner and more maintainable codebases, especially when dealing with the complexities of synchronous and asynchronous programming patterns.
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!` or `::`, found `leveraging`
[INFO] [stdout]   --> src/lib.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | By leveraging the `fb!` macro in your Rust projects, you can maintain cleaner and more maintainable codebases, especially when deali...
[INFO] [stdout]    |    ^^^^^^^^^^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - fb (line 50) stdout ----
[INFO] [stdout] error: cannot find macro `fb` in this scope
[INFO] [stdout]   --> src/lib.rs:57:1
[INFO] [stdout]    |
[INFO] [stdout] 57 | fb!(sync, process_data, (data: Vec<u8>), -> Result<(), MyError>, {
[INFO] [stdout]    | ^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]    |
[INFO] [stdout] 50 + use flexi_func_declarative::fb;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `async`
[INFO] [stdout]   --> src/lib.rs:51:7
[INFO] [stdout]    |
[INFO] [stdout] 51 | #[cfg(feature = "async")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `r#async` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `async`
[INFO] [stdout]   --> src/lib.rs:56:11
[INFO] [stdout]    |
[INFO] [stdout] 56 | #[cfg(not(feature = "async"))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `r#async` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - fb (line 28) stdout ----
[INFO] [stdout] error: cannot find macro `fb` in this scope
[INFO] [stdout]   --> src/lib.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | fb!(sync, greet, (name: String), -> String, {
[INFO] [stdout]    | ^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]    |
[INFO] [stdout] 28 + use flexi_func_declarative::fb;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - fb (line 10) stdout ----
[INFO] [stdout] error: cannot find macro `fb` in this scope
[INFO] [stdout]   --> src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | fb!(mode, function_name, (parameter1: Type1, parameter2: Type2, ...), -> ReturnType, {
[INFO] [stdout]    | ^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]    |
[INFO] [stdout] 10 + use flexi_func_declarative::fb;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - fb (line 36) stdout ----
[INFO] [stdout] error: cannot find macro `fb` in this scope
[INFO] [stdout]   --> src/lib.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | fb!(async, fetch_data, (url: String), -> Result<String, reqwest::Error>, {
[INFO] [stdout]    | ^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]    |
[INFO] [stdout] 36 + use flexi_func_declarative::fb;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - fb (line 10)
[INFO] [stdout]     src/lib.rs - fb (line 28)
[INFO] [stdout]     src/lib.rs - fb (line 36)
[INFO] [stdout]     src/lib.rs - fb (line 50)
[INFO] [stdout]     src/lib.rs - fb (line 86)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 5 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "4d3ed58e5da7388a9024fd6b0ae3b8ea6bf0cc57c2468792075b5c139c2c25a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d3ed58e5da7388a9024fd6b0ae3b8ea6bf0cc57c2468792075b5c139c2c25a7", kill_on_drop: false }`
[INFO] [stdout] 4d3ed58e5da7388a9024fd6b0ae3b8ea6bf0cc57c2468792075b5c139c2c25a7
