[INFO] crate libccp 0.0.8 is already in cache
[INFO] extracting crate libccp 0.0.8 into work/ex/beta-1.38-1/sources/1.37.0/reg/libccp/0.0.8
[INFO] extracting crate libccp 0.0.8 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/libccp/0.0.8
[INFO] validating manifest of libccp-0.0.8 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 libccp-0.0.8 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 libccp-0.0.8
[INFO] finished frobbing libccp-0.0.8
[INFO] frobbed toml for libccp-0.0.8 written to work/ex/beta-1.38-1/sources/1.37.0/reg/libccp/0.0.8/Cargo.toml
[INFO] started frobbing libccp-0.0.8
[INFO] finished frobbing libccp-0.0.8
[INFO] frobbed toml for libccp-0.0.8 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/libccp/0.0.8/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 libccp-0.0.8 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/libccp/0.0.8:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 2e4c4d67dad7b3ac8ac0675cff0206b42657b93b3cdb96ff13df716278c0355d
[INFO] running `"docker" "start" "-a" "2e4c4d67dad7b3ac8ac0675cff0206b42657b93b3cdb96ff13df716278c0355d"`
[INFO] [stderr]    Compiling bindgen v0.47.3
[INFO] [stderr]    Compiling libccp v0.0.8 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:48:24
[INFO] [stderr]    |
[INFO] [stderr] 48 | struct DatapathObj(Box<DatapathOps>);
[INFO] [stderr]    |                        ^^^^^^^^^^^ help: use `dyn`: `dyn DatapathOps`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:133:6
[INFO] [stderr]     |
[INFO] [stderr] 133 | impl CongestionOps {
[INFO] [stderr]     |      ^^^^^^^^^^^^^ help: use `dyn`: `dyn CongestionOps`
[INFO] [stderr] 
[INFO] [stderr] error: could not find native static library `ccp`, perhaps an -L flag is missing?
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `libccp`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2e4c4d67dad7b3ac8ac0675cff0206b42657b93b3cdb96ff13df716278c0355d"`
[INFO] running `"docker" "rm" "-f" "2e4c4d67dad7b3ac8ac0675cff0206b42657b93b3cdb96ff13df716278c0355d"`
[INFO] [stdout] 2e4c4d67dad7b3ac8ac0675cff0206b42657b93b3cdb96ff13df716278c0355d