[INFO] fetching crate schema_registry_converter 2.1.0...
[INFO] checking schema_registry_converter-2.1.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate schema_registry_converter 2.1.0 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate schema_registry_converter 2.1.0 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 schema_registry_converter 2.1.0
[INFO] finished tweaking crates.io crate schema_registry_converter 2.1.0
[INFO] tweaked toml for crates.io crate schema_registry_converter 2.1.0 written to /workspace/builds/worker-21/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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zerocopy v0.3.0
[INFO] [stderr]   Downloaded libflate_lz77 v1.1.0
[INFO] [stderr]   Downloaded libflate v1.1.1
[INFO] [stderr]   Downloaded avro-rs v0.13.0
[INFO] [stderr]   Downloaded json-pointer v0.3.4
[INFO] [stderr]   Downloaded logos v0.12.0
[INFO] [stderr]   Downloaded assert-json-diff v2.0.1
[INFO] [stderr]   Downloaded integer-encoding v3.0.2
[INFO] [stderr]   Downloaded beef v0.5.1
[INFO] [stderr]   Downloaded mockito v0.30.0
[INFO] [stderr]   Downloaded typed-builder v0.5.1
[INFO] [stderr]   Downloaded logos-derive v0.12.0
[INFO] [stderr]   Downloaded valico v3.6.0
[INFO] [stderr]   Downloaded zerocopy-derive v0.2.0
[INFO] [stderr]   Downloaded rdkafka v0.26.0
[INFO] [stderr]   Downloaded jsonway v2.0.0
[INFO] [stderr]   Downloaded uritemplate-next v0.2.0
[INFO] [stderr]   Downloaded rdkafka-sys v4.0.0+1.6.1
[INFO] [stderr]   Downloaded protofish v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] c9c7dac967dda5e0785aa4663a6d6f4670ba3ea55a3f9bdf81230f8aa0cbcf4d
[INFO] running `Command { std: "docker" "start" "-a" "c9c7dac967dda5e0785aa4663a6d6f4670ba3ea55a3f9bdf81230f8aa0cbcf4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9c7dac967dda5e0785aa4663a6d6f4670ba3ea55a3f9bdf81230f8aa0cbcf4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9c7dac967dda5e0785aa4663a6d6f4670ba3ea55a3f9bdf81230f8aa0cbcf4d", kill_on_drop: false }`
[INFO] [stdout] c9c7dac967dda5e0785aa4663a6d6f4670ba3ea55a3f9bdf81230f8aa0cbcf4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c75a009f0b993ee6262d6d52b0447e1e80c30db77b0c4cd8a076e43a868c717
[INFO] running `Command { std: "docker" "start" "-a" "9c75a009f0b993ee6262d6d52b0447e1e80c30db77b0c4cd8a076e43a868c717", kill_on_drop: false }`
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling cmake v0.1.46
[INFO] [stderr]     Checking addr2line v0.16.0
[INFO] [stderr]     Checking object v0.26.2
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling rdkafka-sys v4.0.0+1.6.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking futures-util v0.3.17
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]     Checking backtrace v0.3.61
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking h2 v0.3.6
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stderr]     Checking hyper v0.14.13
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]     Checking serde_json v1.0.68
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking assert-json-diff v2.0.1
[INFO] [stderr]    Compiling proc-macro-crate v1.1.0
[INFO] [stderr]     Checking mockito v0.30.0
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.5
[INFO] [stderr]    Compiling num_enum_derive v0.5.4
[INFO] [stderr]     Checking schema_registry_converter v2.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `url`
[INFO] [stdout]   --> src/async_impl/schema_registry.rs:70:19
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub(crate) fn url(&self) -> &str {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking num_enum v0.5.4
[INFO] [stderr]     Checking rdkafka v0.26.0
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]    --> src/async_impl/schema_registry.rs:483:7
[INFO] [stdout]     |
[INFO] [stdout] 483 |     #[tokio::test]
[INFO] [stdout]     |       ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]    --> src/async_impl/schema_registry.rs:514:7
[INFO] [stdout]     |
[INFO] [stdout] 514 |     #[tokio::test]
[INFO] [stdout]     |       ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]    --> src/async_impl/schema_registry.rs:541:7
[INFO] [stdout]     |
[INFO] [stdout] 541 |     #[tokio::test]
[INFO] [stdout]     |       ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `schema_registry_converter` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "9c75a009f0b993ee6262d6d52b0447e1e80c30db77b0c4cd8a076e43a868c717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c75a009f0b993ee6262d6d52b0447e1e80c30db77b0c4cd8a076e43a868c717", kill_on_drop: false }`
[INFO] [stdout] 9c75a009f0b993ee6262d6d52b0447e1e80c30db77b0c4cd8a076e43a868c717
