[INFO] fetching crate interoptopus_backend_cpython_cffi 0.10.1...
[INFO] testing interoptopus_backend_cpython_cffi-0.10.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate interoptopus_backend_cpython_cffi 0.10.1 into /workspace/builds/worker-107/source
[INFO] validating manifest of crates.io crate interoptopus_backend_cpython_cffi 0.10.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate interoptopus_backend_cpython_cffi 0.10.1
[INFO] finished tweaking crates.io crate interoptopus_backend_cpython_cffi 0.10.1
[INFO] tweaked toml for crates.io crate interoptopus_backend_cpython_cffi 0.10.1 written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded interoptopus_backend_c v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c33554e19d4e16ac6e3e1d9fe05ecac5e3548f71cd9b9c358a0428d172c35cc0
[INFO] running `Command { std: "docker" "start" "-a" "c33554e19d4e16ac6e3e1d9fe05ecac5e3548f71cd9b9c358a0428d172c35cc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c33554e19d4e16ac6e3e1d9fe05ecac5e3548f71cd9b9c358a0428d172c35cc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c33554e19d4e16ac6e3e1d9fe05ecac5e3548f71cd9b9c358a0428d172c35cc0", kill_on_drop: false }`
[INFO] [stdout] c33554e19d4e16ac6e3e1d9fe05ecac5e3548f71cd9b9c358a0428d172c35cc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e92b005739d179cbc490d12d6ebd9e0e28fc5494bff1813adc3dc2620ef2f712
[INFO] running `Command { std: "docker" "start" "-a" "e92b005739d179cbc490d12d6ebd9e0e28fc5494bff1813adc3dc2620ef2f712", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling darling_macro v0.13.0
[INFO] [stderr]    Compiling darling v0.13.0
[INFO] [stderr]    Compiling interoptopus_proc v0.10.1
[INFO] [stderr]    Compiling interoptopus v0.10.3
[INFO] [stderr]    Compiling interoptopus_backend_c v0.10.1
[INFO] [stderr]    Compiling interoptopus_backend_cpython_cffi v0.10.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.66s
[INFO] running `Command { std: "docker" "inspect" "e92b005739d179cbc490d12d6ebd9e0e28fc5494bff1813adc3dc2620ef2f712", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e92b005739d179cbc490d12d6ebd9e0e28fc5494bff1813adc3dc2620ef2f712", kill_on_drop: false }`
[INFO] [stdout] e92b005739d179cbc490d12d6ebd9e0e28fc5494bff1813adc3dc2620ef2f712
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c28cd845b8738eb7e036ed0a9706bb478aa4cc056dcd79b3fedcc5af09d6ef5c
[INFO] running `Command { std: "docker" "start" "-a" "c28cd845b8738eb7e036ed0a9706bb478aa4cc056dcd79b3fedcc5af09d6ef5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling interoptopus_backend_cpython_cffi v0.10.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `interoptopus_reference_project`
[INFO] [stdout]  --> tests/backend_cpython_cffi_ui.rs:8:39
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Generator::new(Config::default(), interoptopus_reference_project::ffi_inventory()).write_file(output)
[INFO] [stdout]   |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ use of undeclared crate or module `interoptopus_reference_project`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `interoptopus_backend_cpython_cffi` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c28cd845b8738eb7e036ed0a9706bb478aa4cc056dcd79b3fedcc5af09d6ef5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c28cd845b8738eb7e036ed0a9706bb478aa4cc056dcd79b3fedcc5af09d6ef5c", kill_on_drop: false }`
[INFO] [stdout] c28cd845b8738eb7e036ed0a9706bb478aa4cc056dcd79b3fedcc5af09d6ef5c