[INFO] crate libp2p-swarm 0.1.0 is already in cache
[INFO] extracting crate libp2p-swarm 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/libp2p-swarm/0.1.0
[INFO] extracting crate libp2p-swarm 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/libp2p-swarm/0.1.0
[INFO] validating manifest of libp2p-swarm-0.1.0 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 libp2p-swarm-0.1.0 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 libp2p-swarm-0.1.0
[INFO] finished frobbing libp2p-swarm-0.1.0
[INFO] frobbed toml for libp2p-swarm-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/libp2p-swarm/0.1.0/Cargo.toml
[INFO] started frobbing libp2p-swarm-0.1.0
[INFO] finished frobbing libp2p-swarm-0.1.0
[INFO] frobbed toml for libp2p-swarm-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/libp2p-swarm/0.1.0/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 libp2p-swarm-0.1.0 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/libp2p-swarm/0.1.0:/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] b24ac62d4a3e48aa5d2f081c48d824506e8a05ba818e01eb8feb71d8f7cdbfd8
[INFO] running `"docker" "start" "-a" "b24ac62d4a3e48aa5d2f081c48d824506e8a05ba818e01eb8feb71d8f7cdbfd8"`
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling rw-stream-sink v0.1.2
[INFO] [stderr]    Compiling unsigned-varint v0.2.2
[INFO] [stderr]    Compiling parity-multihash v0.1.3
[INFO] [stderr]    Compiling multistream-select v0.4.0
[INFO] [stderr]    Compiling parity-multiaddr v0.5.0
[INFO] [stderr]    Compiling libp2p-core v0.11.0
[INFO] [stderr]    Compiling libp2p-swarm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.04s
[INFO] running `"docker" "inspect" "b24ac62d4a3e48aa5d2f081c48d824506e8a05ba818e01eb8feb71d8f7cdbfd8"`
[INFO] running `"docker" "rm" "-f" "b24ac62d4a3e48aa5d2f081c48d824506e8a05ba818e01eb8feb71d8f7cdbfd8"`
[INFO] [stdout] b24ac62d4a3e48aa5d2f081c48d824506e8a05ba818e01eb8feb71d8f7cdbfd8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/libp2p-swarm/0.1.0:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3d4e339bcb5df2b0edb096603bd906e78edfb21e5f23fbd83017d0362b42bfdf
[INFO] running `"docker" "start" "-a" "3d4e339bcb5df2b0edb096603bd906e78edfb21e5f23fbd83017d0362b42bfdf"`
[INFO] [stderr]    Compiling quickcheck v0.8.5
[INFO] [stderr]    Compiling libp2p-swarm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `libp2p_mplex`
[INFO] [stderr]    --> src/lib.rs:576:9
[INFO] [stderr]     |
[INFO] [stderr] 576 |     use libp2p_mplex::Multiplex;
[INFO] [stderr]     |         ^^^^^^^^^^^^ use of undeclared type or module `libp2p_mplex`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `libp2p-swarm`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3d4e339bcb5df2b0edb096603bd906e78edfb21e5f23fbd83017d0362b42bfdf"`
[INFO] running `"docker" "rm" "-f" "3d4e339bcb5df2b0edb096603bd906e78edfb21e5f23fbd83017d0362b42bfdf"`
[INFO] [stdout] 3d4e339bcb5df2b0edb096603bd906e78edfb21e5f23fbd83017d0362b42bfdf