[INFO] crate bigbro 0.5.2 is already in cache
[INFO] extracting crate bigbro 0.5.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/bigbro/0.5.2
[INFO] extracting crate bigbro 0.5.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/bigbro/0.5.2
[INFO] validating manifest of bigbro-0.5.2 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bigbro-0.5.2 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bigbro-0.5.2
[INFO] finished frobbing bigbro-0.5.2
[INFO] frobbed toml for bigbro-0.5.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/bigbro/0.5.2/Cargo.toml
[INFO] started frobbing bigbro-0.5.2
[INFO] finished frobbing bigbro-0.5.2
[INFO] frobbed toml for bigbro-0.5.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/bigbro/0.5.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing bigbro-0.5.2 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/bigbro/0.5.2:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 54a6b45853dddcfb84aa42bbafab1c041b75b5b26c51915e6ee8b9c840ec3f9c
[INFO] running `"docker" "start" "-a" "54a6b45853dddcfb84aa42bbafab1c041b75b5b26c51915e6ee8b9c840ec3f9c"`
[INFO] [stderr] Compiling seccomp-droundy-sys v0.1.2
[INFO] [stderr] Compiling seccomp-droundy v0.1.0
[INFO] [stderr] Compiling bigbro v0.5.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr] --> src/linux.rs:144:60
[INFO] [stderr] |
[INFO] [stderr] 144 | pub fn stdout(&mut self) -> std::io::Result