[INFO] fetching crate flowmacro 0.142.0...
[INFO] testing flowmacro-0.142.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate flowmacro 0.142.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate flowmacro 0.142.0
[INFO] finished tweaking crates.io crate flowmacro 0.142.0
[INFO] tweaked toml for crates.io crate flowmacro 0.142.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate flowmacro 0.142.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 69 packages to latest compatible versions
[INFO] [stderr]       Adding toml v0.8.23 (available: v0.9.7)
[INFO] [stderr]       Adding url v2.2.2 (available: v2.5.7)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1aa68003eca36aee158cb175dc94c43f3bd4db232c011d60269b8b122cf1de99
[INFO] running `Command { std: "docker" "start" "-a" "1aa68003eca36aee158cb175dc94c43f3bd4db232c011d60269b8b122cf1de99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1aa68003eca36aee158cb175dc94c43f3bd4db232c011d60269b8b122cf1de99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aa68003eca36aee158cb175dc94c43f3bd4db232c011d60269b8b122cf1de99", kill_on_drop: false }`
[INFO] [stdout] 1aa68003eca36aee158cb175dc94c43f3bd4db232c011d60269b8b122cf1de99
[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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 827789f64aa403f70017933539751ec50844862ec617d0f789ea2cef59acf855
[INFO] running `Command { std: "docker" "start" "-a" "827789f64aa403f70017933539751ec50844862ec617d0f789ea2cef59acf855", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling gimli v0.32.3
[INFO] [stderr]    Compiling curl v0.4.49
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling libz-sys v1.1.22
[INFO] [stderr]    Compiling curl-sys v0.4.83+curl-8.15.0
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling openssl-probe v0.1.6
[INFO] [stderr]    Compiling toml_write v0.1.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.26
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling addr2line v0.25.1
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling serde_yaml v0.9.34+deprecated
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stderr]    Compiling simpath v2.5.0
[INFO] [stderr]    Compiling toml v0.8.23
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling flowcore v0.142.0
[INFO] [stderr]    Compiling flowmacro v0.142.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(proc_macro_span)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `source_file` found for struct `proc_macro::Span` in the current scope
[INFO] [stdout]   --> src/lib.rs:24:54
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let mut definition_file_path = Span::call_site().source_file().path().canonicalize()
[INFO] [stdout]    |                                                      ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `source` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 24 -     let mut definition_file_path = Span::call_site().source_file().path().canonicalize()
[INFO] [stdout] 24 +     let mut definition_file_path = Span::call_site().source().path().canonicalize()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flowmacro` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "827789f64aa403f70017933539751ec50844862ec617d0f789ea2cef59acf855", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "827789f64aa403f70017933539751ec50844862ec617d0f789ea2cef59acf855", kill_on_drop: false }`
[INFO] [stdout] 827789f64aa403f70017933539751ec50844862ec617d0f789ea2cef59acf855