[INFO] fetching crate interoptopus_backend_csharp 0.10.2...
[INFO] testing interoptopus_backend_csharp-0.10.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate interoptopus_backend_csharp 0.10.2 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate interoptopus_backend_csharp 0.10.2 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_csharp 0.10.2
[INFO] finished tweaking crates.io crate interoptopus_backend_csharp 0.10.2
[INFO] tweaked toml for crates.io crate interoptopus_backend_csharp 0.10.2 written to /workspace/builds/worker-54/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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 31c49980bc9df1f6e7cfdfd747d9a6fd1081cc29a1b71a8013708a5056f5aa49
[INFO] running `Command { std: "docker" "start" "-a" "31c49980bc9df1f6e7cfdfd747d9a6fd1081cc29a1b71a8013708a5056f5aa49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31c49980bc9df1f6e7cfdfd747d9a6fd1081cc29a1b71a8013708a5056f5aa49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31c49980bc9df1f6e7cfdfd747d9a6fd1081cc29a1b71a8013708a5056f5aa49", kill_on_drop: false }`
[INFO] [stdout] 31c49980bc9df1f6e7cfdfd747d9a6fd1081cc29a1b71a8013708a5056f5aa49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 4a4f9da30e20e05f4540117276c52026f4c7cfc7511a7fd27254b2eeb9bf7ba9
[INFO] running `Command { std: "docker" "start" "-a" "4a4f9da30e20e05f4540117276c52026f4c7cfc7511a7fd27254b2eeb9bf7ba9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling fnv v1.0.7
[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_csharp v0.10.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.19s
[INFO] running `Command { std: "docker" "inspect" "4a4f9da30e20e05f4540117276c52026f4c7cfc7511a7fd27254b2eeb9bf7ba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a4f9da30e20e05f4540117276c52026f4c7cfc7511a7fd27254b2eeb9bf7ba9", kill_on_drop: false }`
[INFO] [stdout] 4a4f9da30e20e05f4540117276c52026f4c7cfc7511a7fd27254b2eeb9bf7ba9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 3d731c0d4896b92c100fa636ba38466580e127111836f5660c641a1551db3cfd
[INFO] running `Command { std: "docker" "start" "-a" "3d731c0d4896b92c100fa636ba38466580e127111836f5660c641a1551db3cfd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling interoptopus_backend_csharp v0.10.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `interoptopus_reference_project`
[INFO] [stdout]   --> tests/backend_csharp_ui.rs:11:19
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let library = interoptopus_reference_project::ffi_inventory();
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ use of undeclared crate or module `interoptopus_reference_project`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `interoptopus_reference_project`
[INFO] [stdout]   --> tests/backend_csharp_ui.rs:39:60
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let mut generator = Generator::new(config.clone(), interoptopus_reference_project::ffi_inventory());
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ use of undeclared crate or module `interoptopus_reference_project`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[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_csharp` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3d731c0d4896b92c100fa636ba38466580e127111836f5660c641a1551db3cfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d731c0d4896b92c100fa636ba38466580e127111836f5660c641a1551db3cfd", kill_on_drop: false }`
[INFO] [stdout] 3d731c0d4896b92c100fa636ba38466580e127111836f5660c641a1551db3cfd