[INFO] fetching crate protoc-grpc 0.0.0...
[INFO] checking protoc-grpc-0.0.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate protoc-grpc 0.0.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate protoc-grpc 0.0.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate protoc-grpc 0.0.0
[INFO] finished tweaking crates.io crate protoc-grpc 0.0.0
[INFO] tweaked toml for crates.io crate protoc-grpc 0.0.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 18 packages
[INFO] [stderr]       Adding grpcio-compiler v0.3.0 (latest: v0.13.0)
[INFO] [stderr]       Adding protobuf v2.0.6 (latest: v3.4.0)
[INFO] [stderr]       Adding protobuf-codegen v2.0.6 (latest: v3.4.0)
[INFO] [stderr]       Adding protoc v2.0.6 (latest: v2.28.0)
[INFO] [stderr]       Adding protoc-rust v2.0.6 (latest: v2.28.0)
[INFO] [stderr]       Adding rand v0.4.6 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (latest: v0.6.4)
[INFO] [stderr]       Adding rdrand v0.4.0 (latest: v0.8.3)
[INFO] [stderr]       Adding remove_dir_all v0.5.3 (latest: v0.8.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded grpcio-compiler v0.3.0
[INFO] [stderr]   Downloaded protobuf v2.0.6
[INFO] [stderr]   Downloaded protobuf-codegen v2.0.6
[INFO] [stderr]   Downloaded protoc v2.0.6
[INFO] [stderr]   Downloaded protoc-rust v2.0.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ead03de26abc0c834ffd43e22154097e3bfe8171f5f0cc46cb49d58747c56704
[INFO] running `Command { std: "docker" "start" "-a" "ead03de26abc0c834ffd43e22154097e3bfe8171f5f0cc46cb49d58747c56704", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ead03de26abc0c834ffd43e22154097e3bfe8171f5f0cc46cb49d58747c56704", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ead03de26abc0c834ffd43e22154097e3bfe8171f5f0cc46cb49d58747c56704", kill_on_drop: false }`
[INFO] [stdout] ead03de26abc0c834ffd43e22154097e3bfe8171f5f0cc46cb49d58747c56704
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d670676fad1deb233aee427e0c1062d62b6d041b1f2ef1f1a87d9c9071fb9f25
[INFO] running `Command { std: "docker" "start" "-a" "d670676fad1deb233aee427e0c1062d62b6d041b1f2ef1f1a87d9c9071fb9f25", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.0.6
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking protoc v2.0.6
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking protobuf-codegen v2.0.6
[INFO] [stderr]     Checking protoc-rust v2.0.6
[INFO] [stderr]     Checking grpcio-compiler v0.3.0
[INFO] [stderr]     Checking protoc-grpc v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `Command { std: "docker" "inspect" "d670676fad1deb233aee427e0c1062d62b6d041b1f2ef1f1a87d9c9071fb9f25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d670676fad1deb233aee427e0c1062d62b6d041b1f2ef1f1a87d9c9071fb9f25", kill_on_drop: false }`
[INFO] [stdout] d670676fad1deb233aee427e0c1062d62b6d041b1f2ef1f1a87d9c9071fb9f25
[INFO] checking protoc-grpc-0.0.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate protoc-grpc 0.0.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate protoc-grpc 0.0.0 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate protoc-grpc 0.0.0
[INFO] finished tweaking crates.io crate protoc-grpc 0.0.0
[INFO] tweaked toml for crates.io crate protoc-grpc 0.0.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d5fc5f92ab315880ad178bd17e799017657b56f7f5ef7395d9a4c7eea6b787a
[INFO] running `Command { std: "docker" "start" "-a" "0d5fc5f92ab315880ad178bd17e799017657b56f7f5ef7395d9a4c7eea6b787a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d5fc5f92ab315880ad178bd17e799017657b56f7f5ef7395d9a4c7eea6b787a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d5fc5f92ab315880ad178bd17e799017657b56f7f5ef7395d9a4c7eea6b787a", kill_on_drop: false }`
[INFO] [stdout] 0d5fc5f92ab315880ad178bd17e799017657b56f7f5ef7395d9a4c7eea6b787a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5cd0fad5c34f8956a2145d1efb5e14ed15bab595a348ca2753c566293a33b5f
[INFO] running `Command { std: "docker" "start" "-a" "c5cd0fad5c34f8956a2145d1efb5e14ed15bab595a348ca2753c566293a33b5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.0.6
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking protoc v2.0.6
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/protobuf-2.0.6/src/enums.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         panic!();
[INFO] [stdout]    |         ^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[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 E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `protobuf` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c5cd0fad5c34f8956a2145d1efb5e14ed15bab595a348ca2753c566293a33b5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5cd0fad5c34f8956a2145d1efb5e14ed15bab595a348ca2753c566293a33b5f", kill_on_drop: false }`
[INFO] [stdout] c5cd0fad5c34f8956a2145d1efb5e14ed15bab595a348ca2753c566293a33b5f