[INFO] updating cached repository mabysh/async_test
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mabysh/async_test
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mabysh/async_test" "work/ex/beta-1.38-1/sources/1.37.0/gh/mabysh/async_test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mabysh/async_test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mabysh/async_test" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mabysh/async_test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mabysh/async_test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d50b5675772353ddd27b3f3b7f983167d1467909
[INFO] sha for GitHub repo mabysh/async_test: d50b5675772353ddd27b3f3b7f983167d1467909
[INFO] validating manifest of mabysh/async_test 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 mabysh/async_test 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 mabysh/async_test
[INFO] finished frobbing mabysh/async_test
[INFO] frobbed toml for mabysh/async_test written to work/ex/beta-1.38-1/sources/1.37.0/gh/mabysh/async_test/Cargo.toml
[INFO] started frobbing mabysh/async_test
[INFO] finished frobbing mabysh/async_test
[INFO] frobbed toml for mabysh/async_test written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mabysh/async_test/Cargo.toml
[INFO] crate mabysh/async_test already has a lockfile, it will not be regenerated
[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 mabysh/async_test 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/gh/mabysh/async_test:/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] b72f0c831b5039552867a67113ec16298a870030579d6a26f28246a81b900641
[INFO] running `"docker" "start" "-a" "b72f0c831b5039552867a67113ec16298a870030579d6a26f28246a81b900641"`
[INFO] [stderr]    Compiling nonblock v0.1.0
[INFO] [stderr]    Compiling tokio-executor v0.1.0
[INFO] [stderr]    Compiling bytes v0.4.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.0
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling tokio-io v0.1.6
[INFO] [stderr]    Compiling crossbeam-deque v0.3.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.0
[INFO] [stderr]    Compiling tokio-reactor v0.1.0
[INFO] [stderr]    Compiling tokio v0.1.3
[INFO] [stderr]    Compiling tokio-core v0.1.14
[INFO] [stderr]    Compiling async_test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `tokio_io::codec::*`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use tokio_io::codec::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokio_io::io::read`
[INFO] [stderr]   --> src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use tokio_io::io::read;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `bytes::*`
[INFO] [stderr]   --> src/main.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 | use bytes::*;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/input_stream.rs:77:35
[INFO] [stderr]    |
[INFO] [stderr] 77 |         self.inner.read_available(buf)
[INFO] [stderr]    |                                   ^^^ expected struct `std::vec::Vec`, found slice
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `&mut std::vec::Vec<u8>`
[INFO] [stderr]               found type `&mut [u8]`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `read_to_end` found for type `nonblock::NonBlockingReader<std::io::Stdin>` in the current scope
[INFO] [stderr]   --> src/input_stream.rs:80:20
[INFO] [stderr]    |
[INFO] [stderr] 80 |         self.inner.read_to_end(buf)
[INFO] [stderr]    |                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `read_to_string` found for type `nonblock::NonBlockingReader<std::io::Stdin>` in the current scope
[INFO] [stderr]   --> src/input_stream.rs:83:20
[INFO] [stderr]    |
[INFO] [stderr] 83 |         self.inner.read_to_string(buf)
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `read_exact` found for type `nonblock::NonBlockingReader<std::io::Stdin>` in the current scope
[INFO] [stderr]   --> src/input_stream.rs:86:20
[INFO] [stderr]    |
[INFO] [stderr] 86 |         self.inner.read_exact(buf)
[INFO] [stderr]    |                    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `async_test`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b72f0c831b5039552867a67113ec16298a870030579d6a26f28246a81b900641"`
[INFO] running `"docker" "rm" "-f" "b72f0c831b5039552867a67113ec16298a870030579d6a26f28246a81b900641"`
[INFO] [stdout] b72f0c831b5039552867a67113ec16298a870030579d6a26f28246a81b900641