[INFO] crate dgraph-rs 0.2.6 is already in cache
[INFO] checking dgraph-rs-0.2.6 against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] extracting crate dgraph-rs 0.2.6 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate dgraph-rs 0.2.6 on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate dgraph-rs 0.2.6
[INFO] finished tweaking crates.io crate dgraph-rs 0.2.6
[INFO] tweaked toml for crates.io crate dgraph-rs 0.2.6 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded protoc v2.8.2
[INFO] [stderr]   Downloaded protoc-rust-grpc v0.6.2
[INFO] [stderr]   Downloaded protoc-rust v2.8.2
[INFO] [stderr]   Downloaded grpc v0.6.2
[INFO] [stderr]   Downloaded grpc-compiler v0.6.2
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 28f2d75a7e7748c0230e55893de3dee4d6ae0985d5be3f2c6d77c737402f161d
[INFO] running `"docker" "start" "-a" "28f2d75a7e7748c0230e55893de3dee4d6ae0985d5be3f2c6d77c737402f161d"`
[INFO] [stderr]    Compiling protobuf v2.8.2
[INFO] [stderr]    Compiling httpbis v0.7.0
[INFO] [stderr]     Checking tokio-timer v0.1.2
[INFO] [stderr]     Checking async-macros v1.0.0
[INFO] [stderr]     Checking futures-timer v1.0.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking tls-api v0.1.22
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking async-task v1.2.1
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking tls-api-stub v0.1.22
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]    Compiling protoc v2.8.2
[INFO] [stderr]     Checking tokio-threadpool v0.1.17
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-tls-api v0.1.22
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking tokio-reactor v0.1.11
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking async-std v1.0.1
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking tokio-uds v0.1.7
[INFO] [stderr]     Checking grpc v0.6.2
[INFO] [stderr]    Compiling protobuf-codegen v2.8.2
[INFO] [stderr]     Checking futures-executor v0.3.1
[INFO] [stderr]     Checking futures v0.3.1
[INFO] [stderr]    Compiling grpc-compiler v0.6.2
[INFO] [stderr]    Compiling protoc-rust v2.8.2
[INFO] [stderr]    Compiling protoc-rust-grpc v0.6.2
[INFO] [stderr]    Compiling dgraph-rs v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0425]: cannot find value `VERSION_2_8_1` in crate `protobuf`
[INFO] [stderr]   --> src/protos/api.rs:27:49
[INFO] [stderr]    |
[INFO] [stderr] 27 | const _PROTOBUF_VERSION_CHECK: () = ::protobuf::VERSION_2_8_1;
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^ help: a constant with a similar name exists: `VERSION_2_8_2`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: /opt/rustwide/target/debug/build/protobuf-c6164f63f3a566de/out/version.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | pub const VERSION_2_8_2: () = ();
[INFO] [stderr]    | --------------------------------- similarly named constant `VERSION_2_8_2` defined here
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `VERSION_2_8_1` in crate `protobuf`
[INFO] [stderr]   --> src/protos/api.rs:27:49
[INFO] [stderr]    |
[INFO] [stderr] 27 | const _PROTOBUF_VERSION_CHECK: () = ::protobuf::VERSION_2_8_1;
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^ help: a constant with a similar name exists: `VERSION_2_8_2`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: /opt/rustwide/target/debug/build/protobuf-c6164f63f3a566de/out/version.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | pub const VERSION_2_8_2: () = ();
[INFO] [stderr]    | --------------------------------- similarly named constant `VERSION_2_8_2` defined here
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `dgraph-rs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `dgraph-rs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "28f2d75a7e7748c0230e55893de3dee4d6ae0985d5be3f2c6d77c737402f161d"`
[INFO] running `"docker" "rm" "-f" "28f2d75a7e7748c0230e55893de3dee4d6ae0985d5be3f2c6d77c737402f161d"`
[INFO] [stdout] 28f2d75a7e7748c0230e55893de3dee4d6ae0985d5be3f2c6d77c737402f161d