[INFO] fetching crate interoptopus_backend_c 0.14.24...
[INFO] checking interoptopus_backend_c-0.14.24 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] extracting crate interoptopus_backend_c 0.14.24 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate interoptopus_backend_c 0.14.24 on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate interoptopus_backend_c 0.14.24
[INFO] finished tweaking crates.io crate interoptopus_backend_c 0.14.24
[INFO] tweaked toml for crates.io crate interoptopus_backend_c 0.14.24 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] [stderr]       Adding darling v0.13.4 (latest: v0.20.9)
[INFO] [stderr]       Adding darling_core v0.13.4 (latest: v0.20.9)
[INFO] [stderr]       Adding darling_macro v0.13.4 (latest: v0.20.9)
[INFO] [stderr]       Adding heck v0.4.1 (latest: v0.5.0)
[INFO] [stderr]       Adding strsim v0.10.0 (latest: v0.11.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.66)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded interoptopus_proc v0.14.23
[INFO] [stderr]   Downloaded interoptopus v0.14.23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 047b21146c7759c9964fd408d966f0482e28794ed34603dee34a0c41fced2f01
[INFO] running `Command { std: "docker" "start" "-a" "047b21146c7759c9964fd408d966f0482e28794ed34603dee34a0c41fced2f01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "047b21146c7759c9964fd408d966f0482e28794ed34603dee34a0c41fced2f01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "047b21146c7759c9964fd408d966f0482e28794ed34603dee34a0c41fced2f01", kill_on_drop: false }`
[INFO] [stdout] 047b21146c7759c9964fd408d966f0482e28794ed34603dee34a0c41fced2f01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a76b2de54ce5895e27d64c9b0a2957c3ad0f3e27e29fd8774d10cc7b2f742795
[INFO] running `Command { std: "docker" "start" "-a" "a76b2de54ce5895e27d64c9b0a2957c3ad0f3e27e29fd8774d10cc7b2f742795", kill_on_drop: false }`
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking heck v0.4.1
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling interoptopus_proc v0.14.23
[INFO] [stderr]     Checking interoptopus v0.14.23
[INFO] [stderr]     Checking interoptopus_backend_c v0.14.24 (/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:34:21
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let inventory = 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 1 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` (test "backend_c_ui") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a76b2de54ce5895e27d64c9b0a2957c3ad0f3e27e29fd8774d10cc7b2f742795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a76b2de54ce5895e27d64c9b0a2957c3ad0f3e27e29fd8774d10cc7b2f742795", kill_on_drop: false }`
[INFO] [stdout] a76b2de54ce5895e27d64c9b0a2957c3ad0f3e27e29fd8774d10cc7b2f742795