[INFO] fetching crate sticker-tf-proto 0.11.0...
[INFO] checking sticker-tf-proto-0.11.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate sticker-tf-proto 0.11.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate sticker-tf-proto 0.11.0 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 sticker-tf-proto 0.11.0
[INFO] finished tweaking crates.io crate sticker-tf-proto 0.11.0
[INFO] tweaked toml for crates.io crate sticker-tf-proto 0.11.0 written to /workspace/builds/worker-4-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 23 packages
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding protobuf v2.8.0 (latest: v3.4.0)
[INFO] [stderr]       Adding protobuf-codegen v2.8.0 (latest: v3.4.0)
[INFO] [stderr]       Adding protoc v2.8.0 (latest: v2.28.0)
[INFO] [stderr]       Adding protoc-rust v2.8.0 (latest: v2.28.0)
[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 protoc v2.8.0
[INFO] [stderr]   Downloaded protoc-rust v2.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 45df9495629abca3f070ba7d19847cb28554f5b91b9fb8781f0568ebf2de9230
[INFO] running `Command { std: "docker" "start" "-a" "45df9495629abca3f070ba7d19847cb28554f5b91b9fb8781f0568ebf2de9230", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45df9495629abca3f070ba7d19847cb28554f5b91b9fb8781f0568ebf2de9230", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45df9495629abca3f070ba7d19847cb28554f5b91b9fb8781f0568ebf2de9230", kill_on_drop: false }`
[INFO] [stdout] 45df9495629abca3f070ba7d19847cb28554f5b91b9fb8781f0568ebf2de9230
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 9e64c4361ac7d0b2037cd77b865a669711020d6df06f0b86e735c7c632baa5d1
[INFO] running `Command { std: "docker" "start" "-a" "9e64c4361ac7d0b2037cd77b865a669711020d6df06f0b86e735c7c632baa5d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.8.0
[INFO] [stderr]    Compiling sticker-tf-proto v0.11.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.21s
[INFO] running `Command { std: "docker" "inspect" "9e64c4361ac7d0b2037cd77b865a669711020d6df06f0b86e735c7c632baa5d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e64c4361ac7d0b2037cd77b865a669711020d6df06f0b86e735c7c632baa5d1", kill_on_drop: false }`
[INFO] [stdout] 9e64c4361ac7d0b2037cd77b865a669711020d6df06f0b86e735c7c632baa5d1
[INFO] checking sticker-tf-proto-0.11.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate sticker-tf-proto 0.11.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate sticker-tf-proto 0.11.0 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 sticker-tf-proto 0.11.0
[INFO] finished tweaking crates.io crate sticker-tf-proto 0.11.0
[INFO] tweaked toml for crates.io crate sticker-tf-proto 0.11.0 written to /workspace/builds/worker-4-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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 91f97a055e902e38479e8ec2a5b6c507a629806b49e54361530f079e411f52dd
[INFO] running `Command { std: "docker" "start" "-a" "91f97a055e902e38479e8ec2a5b6c507a629806b49e54361530f079e411f52dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91f97a055e902e38479e8ec2a5b6c507a629806b49e54361530f079e411f52dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91f97a055e902e38479e8ec2a5b6c507a629806b49e54361530f079e411f52dd", kill_on_drop: false }`
[INFO] [stdout] 91f97a055e902e38479e8ec2a5b6c507a629806b49e54361530f079e411f52dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a8d19b7fadbdeb09b83dd5c9b58789a42fb95bb89367a3eb4a30bfb2bc99b98d
[INFO] running `Command { std: "docker" "start" "-a" "a8d19b7fadbdeb09b83dd5c9b58789a42fb95bb89367a3eb4a30bfb2bc99b98d", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.8.0
[INFO] [stderr]    Compiling sticker-tf-proto v0.11.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/protobuf-2.8.0/src/enums.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         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" "a8d19b7fadbdeb09b83dd5c9b58789a42fb95bb89367a3eb4a30bfb2bc99b98d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8d19b7fadbdeb09b83dd5c9b58789a42fb95bb89367a3eb4a30bfb2bc99b98d", kill_on_drop: false }`
[INFO] [stdout] a8d19b7fadbdeb09b83dd5c9b58789a42fb95bb89367a3eb4a30bfb2bc99b98d