[INFO] updating cached repository dvc94ch/rust-ipfs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dvc94ch/rust-ipfs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dvc94ch/rust-ipfs" "work/ex/beta-1.38-1/sources/1.37.0/gh/dvc94ch/rust-ipfs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/dvc94ch/rust-ipfs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dvc94ch/rust-ipfs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dvc94ch/rust-ipfs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dvc94ch/rust-ipfs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6ed1200dddb6eaf2de74862787ff9ccfb104d64e
[INFO] sha for GitHub repo dvc94ch/rust-ipfs: 6ed1200dddb6eaf2de74862787ff9ccfb104d64e
[INFO] validating manifest of dvc94ch/rust-ipfs 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 dvc94ch/rust-ipfs 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 dvc94ch/rust-ipfs
[INFO] finished frobbing dvc94ch/rust-ipfs
[INFO] frobbed toml for dvc94ch/rust-ipfs written to work/ex/beta-1.38-1/sources/1.37.0/gh/dvc94ch/rust-ipfs/Cargo.toml
[INFO] started frobbing dvc94ch/rust-ipfs
[INFO] finished frobbing dvc94ch/rust-ipfs
[INFO] frobbed toml for dvc94ch/rust-ipfs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dvc94ch/rust-ipfs/Cargo.toml
[INFO] crate dvc94ch/rust-ipfs 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] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/dvc94ch/rust-ipfs/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/dvc94ch/rust-cbor`
[INFO] [stderr]     Updating git repository `https://github.com/multiformats/rust-cid`
[INFO] [stderr]     Updating git repository `https://github.com/rust-lang-nursery/futures-rs`
[INFO] [stderr]     Updating git repository `https://github.com/libp2p/rust-libp2p`
[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] [stderr]     Updating git repository `https://github.com/dvc94ch/rust-cbor`
[INFO] [stderr]     Updating git repository `https://github.com/multiformats/rust-cid`
[INFO] [stderr]     Updating git repository `https://github.com/rust-lang-nursery/futures-rs`
[INFO] [stderr]     Updating git repository `https://github.com/libp2p/rust-libp2p`
[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 dvc94ch/rust-ipfs 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-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dvc94ch/rust-ipfs:/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] ac9c7d4cd7800230b07a0f993ee618596e8c46cf50816f09a33610eef11d8b90
[INFO] running `"docker" "start" "-a" "ac9c7d4cd7800230b07a0f993ee618596e8c46cf50816f09a33610eef11d8b90"`
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling futures v0.1.28
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling regex-syntax v0.6.11
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling bindgen v0.49.2
[INFO] [stderr]    Compiling protobuf v2.8.0
[INFO] [stderr]    Compiling crunchy v0.1.6
[INFO] [stderr]    Compiling safemem v0.3.2
[INFO] [stderr]    Compiling data-encoding v2.1.2
[INFO] [stderr]    Compiling bs58 v0.2.4
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.18 (https://github.com/rust-lang-nursery/futures-rs#f2b6b87a)
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling quick-error v0.1.4
[INFO] [stderr]    Compiling nohash-hasher v0.1.1
[INFO] [stderr]    Compiling static_slice v0.0.3
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.18 (https://github.com/rust-lang-nursery/futures-rs#f2b6b87a)
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling base-x v0.2.5
[INFO] [stderr]    Compiling sha1 v0.5.0
[INFO] [stderr]    Compiling integer-encoding v1.0.7
[INFO] [stderr]    Compiling xdg v2.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.18 (https://github.com/rust-lang-nursery/futures-rs#f2b6b87a)
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling cbor v0.4.1 (https://github.com/dvc94ch/rust-cbor?branch=read-data-item#c82f410c)
[INFO] [stderr]    Compiling multibase v0.6.0
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.18 (https://github.com/rust-lang-nursery/futures-rs#f2b6b87a)
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling snow v0.5.2
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling tokio-sync v0.1.6
[INFO] [stderr]    Compiling tokio-executor v0.1.8
[INFO] [stderr]    Compiling tiny-keccak v1.5.0
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling dns-parser v0.8.0
[INFO] [stderr]    Compiling bigint v4.4.1
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.18 (https://github.com/rust-lang-nursery/futures-rs#f2b6b87a)
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]    Compiling block-cipher-trait v0.6.2
[INFO] [stderr]    Compiling stream-cipher v0.3.2
[INFO] [stderr]    Compiling tokio-timer v0.2.11
[INFO] [stderr]    Compiling tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling cuckoofilter v0.3.2
[INFO] [stderr]    Compiling parking_lot v0.5.5
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling cexpr v0.3.5
[INFO] [stderr]    Compiling regex v1.2.1
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling blake2 v0.8.0
[INFO] [stderr]    Compiling hmac v0.7.1
[INFO] [stderr]    Compiling aes-soft v0.3.3
[INFO] [stderr]    Compiling twofish v0.2.0
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]    Compiling ctr v0.3.2
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.18 (https://github.com/rust-lang-nursery/futures-rs#f2b6b87a)
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-async-await v0.1.7
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-async-await-0.1.7/src/lib.rs:2:44
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(rust_2018_preview, async_await, await_macro, futures_api)]
[INFO] [stderr]   |                                            ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: subsumed by `.await` syntax
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-async-await-0.1.7/src/lib.rs:2:44
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(rust_2018_preview, async_await, await_macro, futures_api)]
[INFO] [stderr]   |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::await`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-async-await-0.1.7/src/lib.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub use std::await as std_await;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^ no `await` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-async-await-0.1.7/src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(rust_2018_preview, async_await, await_macro, futures_api)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0554, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `tokio-async-await`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ac9c7d4cd7800230b07a0f993ee618596e8c46cf50816f09a33610eef11d8b90"`
[INFO] running `"docker" "rm" "-f" "ac9c7d4cd7800230b07a0f993ee618596e8c46cf50816f09a33610eef11d8b90"`
[INFO] [stdout] ac9c7d4cd7800230b07a0f993ee618596e8c46cf50816f09a33610eef11d8b90