[INFO] fetching crate interoptopus_backend_c 0.9.0...
[INFO] checking interoptopus_backend_c-0.9.0 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate interoptopus_backend_c 0.9.0 into /workspace/builds/worker-76/source
[INFO] validating manifest of crates.io crate interoptopus_backend_c 0.9.0 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate interoptopus_backend_c 0.9.0
[INFO] finished tweaking crates.io crate interoptopus_backend_c 0.9.0
[INFO] tweaked toml for crates.io crate interoptopus_backend_c 0.9.0 written to /workspace/builds/worker-76/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f45ca43871f6590074c6af31cf08be7a512f1833d9f298597ec5886e5009ec9a
[INFO] running `Command { std: "docker" "start" "-a" "f45ca43871f6590074c6af31cf08be7a512f1833d9f298597ec5886e5009ec9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f45ca43871f6590074c6af31cf08be7a512f1833d9f298597ec5886e5009ec9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f45ca43871f6590074c6af31cf08be7a512f1833d9f298597ec5886e5009ec9a", kill_on_drop: false }`
[INFO] [stdout] f45ca43871f6590074c6af31cf08be7a512f1833d9f298597ec5886e5009ec9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 454602fe93ed4efab76fa6cb56885a5b6a2c6b1ce5fa7b2813136e32080a36ff
[INFO] running `Command { std: "docker" "start" "-a" "454602fe93ed4efab76fa6cb56885a5b6a2c6b1ce5fa7b2813136e32080a36ff", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.10.0
[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 v0.9.0
[INFO] [stderr]     Checking interoptopus v0.9.4
[INFO] [stderr]     Checking interoptopus_backend_c v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `interoptopus_reference_project`
[INFO] [stdout]   --> tests/backend_c_ui.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |     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: 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_c` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "454602fe93ed4efab76fa6cb56885a5b6a2c6b1ce5fa7b2813136e32080a36ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "454602fe93ed4efab76fa6cb56885a5b6a2c6b1ce5fa7b2813136e32080a36ff", kill_on_drop: false }`
[INFO] [stdout] 454602fe93ed4efab76fa6cb56885a5b6a2c6b1ce5fa7b2813136e32080a36ff