[INFO] crate lazy_async_pool 0.2.1 is already in cache
[INFO] extracting crate lazy_async_pool 0.2.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/lazy_async_pool/0.2.1
[INFO] extracting crate lazy_async_pool 0.2.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/lazy_async_pool/0.2.1
[INFO] validating manifest of lazy_async_pool-0.2.1 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lazy_async_pool-0.2.1 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lazy_async_pool-0.2.1
[INFO] finished frobbing lazy_async_pool-0.2.1
[INFO] frobbed toml for lazy_async_pool-0.2.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/lazy_async_pool/0.2.1/Cargo.toml
[INFO] started frobbing lazy_async_pool-0.2.1
[INFO] finished frobbing lazy_async_pool-0.2.1
[INFO] frobbed toml for lazy_async_pool-0.2.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/lazy_async_pool/0.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing lazy_async_pool-0.2.1 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/lazy_async_pool/0.2.1:/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=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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 297e9fb503154c1a997049630130c766b13c3092b3b8429fdac046140a928d06
[INFO] running `"docker" "start" "-a" "297e9fb503154c1a997049630130c766b13c3092b3b8429fdac046140a928d06"`
[INFO] [stderr]    Compiling lazy_async_pool v0.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `"docker" "inspect" "297e9fb503154c1a997049630130c766b13c3092b3b8429fdac046140a928d06"`
[INFO] running `"docker" "rm" "-f" "297e9fb503154c1a997049630130c766b13c3092b3b8429fdac046140a928d06"`
[INFO] [stdout] 297e9fb503154c1a997049630130c766b13c3092b3b8429fdac046140a928d06
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/lazy_async_pool/0.2.1:/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=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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0e11b8afeffc2e3633d050d3ea4e4fb4786db30c4419bf78d49af801b096f1fe
[INFO] running `"docker" "start" "-a" "0e11b8afeffc2e3633d050d3ea4e4fb4786db30c4419bf78d49af801b096f1fe"`
[INFO] [stderr]    Compiling darling_core v0.8.6
[INFO] [stderr]    Compiling darling_macro v0.8.6
[INFO] [stderr]    Compiling darling v0.8.6
[INFO] [stderr]    Compiling derive_state_machine_future v0.2.0
[INFO] [stderr]    Compiling state_machine_future v0.2.0
[INFO] [stderr]    Compiling tokio-postgres v0.4.0-rc.3
[INFO] [stderr] warning[E0381]: use of possibly uninitialized variable: `_`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-postgres-0.4.0-rc.3/src/proto/copy_in.rs:171:44
[INFO] [stderr]     |
[INFO] [stderr] 171 |               let buf: Box<dyn Buf + Send> = loop {
[INFO] [stderr]     |  ____________________________________________^
[INFO] [stderr] 172 | |                 match try_ready!(state.stream.poll().map_err(Error::copy_in_stream)) {
[INFO] [stderr] 173 | |                     Some(buf) => {
[INFO] [stderr] 174 | |                         let buf = buf.into_buf();
[INFO] [stderr] ...   |
[INFO] [stderr] 191 | |                 }
[INFO] [stderr] 192 | |             };
[INFO] [stderr]     | |_____________^ use of possibly uninitialized value
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling lazy_async_pool v0.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.78s
[INFO] running `"docker" "inspect" "0e11b8afeffc2e3633d050d3ea4e4fb4786db30c4419bf78d49af801b096f1fe"`
[INFO] running `"docker" "rm" "-f" "0e11b8afeffc2e3633d050d3ea4e4fb4786db30c4419bf78d49af801b096f1fe"`
[INFO] [stdout] 0e11b8afeffc2e3633d050d3ea4e4fb4786db30c4419bf78d49af801b096f1fe
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/lazy_async_pool/0.2.1:/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=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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 028acc580a65b719fd638daee6498ed135ac81290f36922a03571fc7ff7fb68c
[INFO] running `"docker" "start" "-a" "028acc580a65b719fd638daee6498ed135ac81290f36922a03571fc7ff7fb68c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lazy_async_pool-f4cc31209dde9d06
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr] error connecting to server: Cannot assign requested address (os error 99)
[INFO] [stdout] test test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lazy_async_pool
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "028acc580a65b719fd638daee6498ed135ac81290f36922a03571fc7ff7fb68c"`
[INFO] running `"docker" "rm" "-f" "028acc580a65b719fd638daee6498ed135ac81290f36922a03571fc7ff7fb68c"`
[INFO] [stdout] 028acc580a65b719fd638daee6498ed135ac81290f36922a03571fc7ff7fb68c