[INFO] fetching crate protobuf-build 0.6.1...
[INFO] extracting crate protobuf-build 0.6.1 into work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/protobuf-build/0.6.1
[INFO] extracting crate protobuf-build 0.6.1 into work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/protobuf-build/0.6.1
[INFO] validating manifest of protobuf-build-0.6.1 on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of protobuf-build-0.6.1 on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing protobuf-build-0.6.1
[INFO] finished frobbing protobuf-build-0.6.1
[INFO] frobbed toml for protobuf-build-0.6.1 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/protobuf-build/0.6.1/Cargo.toml
[INFO] started frobbing protobuf-build-0.6.1
[INFO] finished frobbing protobuf-build-0.6.1
[INFO] frobbed toml for protobuf-build-0.6.1 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/protobuf-build/0.6.1/Cargo.toml
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking protobuf-build-0.6.1 against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-3/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/protobuf-build/0.6.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 733f2e74b8345a27f301fb9843f1a76532f994f14133609146e5ee25dbd68d9d
[INFO] running `"docker" "start" "-a" "733f2e74b8345a27f301fb9843f1a76532f994f14133609146e5ee25dbd68d9d"`
[INFO] [stderr]     Checking multimap v0.4.0
[INFO] [stderr]     Checking protoc v2.7.0
[INFO] [stderr]     Checking protobuf-codegen v2.7.0
[INFO] [stderr]     Checking prost-types v0.5.0
[INFO] [stderr]     Checking protoc-rust v2.7.0
[INFO] [stderr]     Checking prost-build v0.5.0
[INFO] [stderr]     Checking grpcio-compiler v0.5.0-alpha
[INFO] [stderr]     Checking protoc-grpcio v1.0.2
[INFO] [stderr]     Checking protobuf-build v0.6.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.58s
[INFO] running `"docker" "inspect" "733f2e74b8345a27f301fb9843f1a76532f994f14133609146e5ee25dbd68d9d"`
[INFO] running `"docker" "rm" "-f" "733f2e74b8345a27f301fb9843f1a76532f994f14133609146e5ee25dbd68d9d"`
[INFO] [stdout] 733f2e74b8345a27f301fb9843f1a76532f994f14133609146e5ee25dbd68d9d