[INFO] crate async-serialization 0.2.2 is already in cache
[INFO] testing async-serialization-0.2.2 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate async-serialization 0.2.2 into work/builds/worker-6/source
[INFO] validating manifest of crates.io crate async-serialization 0.2.2 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate async-serialization 0.2.2
[INFO] finished tweaking crates.io crate async-serialization 0.2.2
[INFO] tweaked toml for crates.io crate async-serialization 0.2.2 written to work/builds/worker-6/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] a755f6560b5fc250e76be59e0ee3e752debfae3d35734a4a1521fbc82ef10e7d
[INFO] running `"docker" "start" "-a" "a755f6560b5fc250e76be59e0ee3e752debfae3d35734a4a1521fbc82ef10e7d"`
[INFO] [stderr]    Compiling async-serialization v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:110:32
[INFO] [stderr]     |
[INFO] [stderr] 110 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `"docker" "inspect" "a755f6560b5fc250e76be59e0ee3e752debfae3d35734a4a1521fbc82ef10e7d"`
[INFO] running `"docker" "rm" "-f" "a755f6560b5fc250e76be59e0ee3e752debfae3d35734a4a1521fbc82ef10e7d"`
[INFO] [stdout] a755f6560b5fc250e76be59e0ee3e752debfae3d35734a4a1521fbc82ef10e7d
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] d54774d28ebe72e3693def1a5e2de98351cfbea152c77c1e0c4cd4add2ff6d12
[INFO] running `"docker" "start" "-a" "d54774d28ebe72e3693def1a5e2de98351cfbea152c77c1e0c4cd4add2ff6d12"`
[INFO] [stderr]    Compiling async-serialization v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:110:32
[INFO] [stderr]     |
[INFO] [stderr] 110 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "d54774d28ebe72e3693def1a5e2de98351cfbea152c77c1e0c4cd4add2ff6d12"`
[INFO] running `"docker" "rm" "-f" "d54774d28ebe72e3693def1a5e2de98351cfbea152c77c1e0c4cd4add2ff6d12"`
[INFO] [stdout] d54774d28ebe72e3693def1a5e2de98351cfbea152c77c1e0c4cd4add2ff6d12
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 1605f9b3a119743606620beedde67ddea783d174e0013b8d8d62ef2623ea3f79
[INFO] running `"docker" "start" "-a" "1605f9b3a119743606620beedde67ddea783d174e0013b8d8d62ef2623ea3f79"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/async_serialization-06d25ecc6c0d7a7a
[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] [stderr]    Doc-tests async-serialization
[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" "1605f9b3a119743606620beedde67ddea783d174e0013b8d8d62ef2623ea3f79"`
[INFO] running `"docker" "rm" "-f" "1605f9b3a119743606620beedde67ddea783d174e0013b8d8d62ef2623ea3f79"`
[INFO] [stdout] 1605f9b3a119743606620beedde67ddea783d174e0013b8d8d62ef2623ea3f79