[INFO] crate protobuf-build 0.6.1 is already in cache
[INFO] extracting crate protobuf-build 0.6.1 into work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/reg/protobuf-build/0.6.1
[INFO] extracting crate protobuf-build 0.6.1 into work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/reg/protobuf-build/0.6.1
[INFO] validating manifest of protobuf-build-0.6.1 on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of protobuf-build-0.6.1 on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-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-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/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-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/reg/protobuf-build/0.6.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking protobuf-build-0.6.1 against try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-0/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/reg/protobuf-build/0.6.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2cfce80157f47c54c293e6b647155549491f4f815824ca8c7e7005dbfd50b0bb
[INFO] running `"docker" "start" "-a" "2cfce80157f47c54c293e6b647155549491f4f815824ca8c7e7005dbfd50b0bb"`
[INFO] [stderr]     Checking multimap v0.4.0
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling prost-derive v0.5.0
[INFO] [stderr]    Compiling prost-build v0.5.0
[INFO] [stderr]     Checking prost v0.5.0
[INFO] [stderr]     Checking prost-types 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 15.97s
[INFO] running `"docker" "inspect" "2cfce80157f47c54c293e6b647155549491f4f815824ca8c7e7005dbfd50b0bb"`
[INFO] running `"docker" "rm" "-f" "2cfce80157f47c54c293e6b647155549491f4f815824ca8c7e7005dbfd50b0bb"`
[INFO] [stdout] 2cfce80157f47c54c293e6b647155549491f4f815824ca8c7e7005dbfd50b0bb