[INFO] fetching crate merfolk_backend_in_process 0.1.0...
[INFO] testing merfolk_backend_in_process-0.1.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate merfolk_backend_in_process 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate merfolk_backend_in_process 0.1.0 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate merfolk_backend_in_process 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate merfolk_backend_in_process 0.1.0
[INFO] tweaked toml for crates.io crate merfolk_backend_in_process 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2d480407cdfc4436cd3511c534d8c87517d405939d19baea6712f9acfc0b640
[INFO] running `Command { std: "docker" "start" "-a" "f2d480407cdfc4436cd3511c534d8c87517d405939d19baea6712f9acfc0b640", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2d480407cdfc4436cd3511c534d8c87517d405939d19baea6712f9acfc0b640", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2d480407cdfc4436cd3511c534d8c87517d405939d19baea6712f9acfc0b640", kill_on_drop: false }`
[INFO] [stdout] f2d480407cdfc4436cd3511c534d8c87517d405939d19baea6712f9acfc0b640
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41c77b4c1c06b03c6a8732c8d1dced2ec0772267604c424b0b3584bae0cf4383
[INFO] running `Command { std: "docker" "start" "-a" "41c77b4c1c06b03c6a8732c8d1dced2ec0772267604c424b0b3584bae0cf4383", kill_on_drop: false }`
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling spin v0.7.1
[INFO] [stderr]    Compiling tokio v1.8.1
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling darling_macro v0.12.4
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]    Compiling derive_builder_core v0.10.2
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling derive_builder_macro v0.10.2
[INFO] [stderr]    Compiling derive_builder v0.10.2
[INFO] [stderr]    Compiling merfolk v0.1.4
[INFO] [stderr]    Compiling merfolk_backend_in_process v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.42s
[INFO] running `Command { std: "docker" "inspect" "41c77b4c1c06b03c6a8732c8d1dced2ec0772267604c424b0b3584bae0cf4383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41c77b4c1c06b03c6a8732c8d1dced2ec0772267604c424b0b3584bae0cf4383", kill_on_drop: false }`
[INFO] [stdout] 41c77b4c1c06b03c6a8732c8d1dced2ec0772267604c424b0b3584bae0cf4383
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b1b90179ca6d0fd1f1b27ee0b2d06f5479325c19eb9cf8cc45cdd4e8945a83f
[INFO] running `Command { std: "docker" "start" "-a" "7b1b90179ca6d0fd1f1b27ee0b2d06f5479325c19eb9cf8cc45cdd4e8945a83f", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling merfolk_backend_in_process v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `merfolk_frontend_register`
[INFO] [stdout]   --> test/tests.rs:11:25
[INFO] [stdout]    |
[INFO] [stdout] 11 |   let register_caller = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^ use of undeclared crate or module `merfolk_frontend_register`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `merfolk_frontend_register`
[INFO] [stdout]   --> test/tests.rs:12:27
[INFO] [stdout]    |
[INFO] [stdout] 12 |   let register_receiver = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^ use of undeclared crate or module `merfolk_frontend_register`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `merfolk_frontend_register`
[INFO] [stdout]   --> test/tests.rs:39:24
[INFO] [stdout]    |
[INFO] [stdout] 39 |   let register_first = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^ use of undeclared crate or module `merfolk_frontend_register`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `merfolk_frontend_register`
[INFO] [stdout]   --> test/tests.rs:40:25
[INFO] [stdout]    |
[INFO] [stdout] 40 |   let register_second = merfolk_frontend_register::Register::builder().build().unwrap();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^ use of undeclared crate or module `merfolk_frontend_register`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 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 `merfolk_backend_in_process`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7b1b90179ca6d0fd1f1b27ee0b2d06f5479325c19eb9cf8cc45cdd4e8945a83f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b1b90179ca6d0fd1f1b27ee0b2d06f5479325c19eb9cf8cc45cdd4e8945a83f", kill_on_drop: false }`
[INFO] [stdout] 7b1b90179ca6d0fd1f1b27ee0b2d06f5479325c19eb9cf8cc45cdd4e8945a83f