[INFO] updating cached repository sticnarf/shunter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sticnarf/shunter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sticnarf/shunter" "work/ex/beta-1.38-1/sources/1.37.0/gh/sticnarf/shunter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/sticnarf/shunter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sticnarf/shunter" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sticnarf/shunter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sticnarf/shunter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9ee9fc21256373cc0cc52c1d36cc29eb11bf71a9
[INFO] sha for GitHub repo sticnarf/shunter: 9ee9fc21256373cc0cc52c1d36cc29eb11bf71a9
[INFO] validating manifest of sticnarf/shunter 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 sticnarf/shunter 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 sticnarf/shunter
[INFO] finished frobbing sticnarf/shunter
[INFO] frobbed toml for sticnarf/shunter written to work/ex/beta-1.38-1/sources/1.37.0/gh/sticnarf/shunter/Cargo.toml
[INFO] started frobbing sticnarf/shunter
[INFO] finished frobbing sticnarf/shunter
[INFO] frobbed toml for sticnarf/shunter written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sticnarf/shunter/Cargo.toml
[INFO] crate sticnarf/shunter 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 sticnarf/shunter 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-0/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/sticnarf/shunter:/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] c8a9f9116a3507743c3a374f4a15610373d97e4f7ba50b9906059ae130ec7730
[INFO] running `"docker" "start" "-a" "c8a9f9116a3507743c3a374f4a15610373d97e4f7ba50b9906059ae130ec7730"`
[INFO] [stderr]    Compiling quote v0.1.4
[INFO] [stderr]    Compiling take_mut v0.1.3
[INFO] [stderr]    Compiling slog v2.0.12
[INFO] [stderr]    Compiling rand v0.3.17
[INFO] [stderr]    Compiling iovec v0.1.1
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling isatty v0.1.5
[INFO] [stderr]    Compiling net2 v0.2.31
[INFO] [stderr]    Compiling futures-cpupool v0.1.7
[INFO] [stderr]    Compiling syn v0.7.1
[INFO] [stderr]    Compiling bytes v0.4.5
[INFO] [stderr]    Compiling mio v0.6.11
[INFO] [stderr]    Compiling slog-async v2.1.0
[INFO] [stderr]    Compiling slog-scope v4.0.0
[INFO] [stderr]    Compiling tokio-io v0.1.3
[INFO] [stderr]    Compiling num-bigint v0.1.40
[INFO] [stderr]    Compiling num-derive v0.1.41
[INFO] [stderr]    Compiling tokio-core v0.1.10
[INFO] [stderr]    Compiling num-rational v0.1.39
[INFO] [stderr]    Compiling num v0.1.40
[INFO] [stderr]    Compiling tokio-dns-unofficial v0.1.1
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr] error[E0283]: type annotations required: cannot resolve `std::io::Error: std::convert::From<_>`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-dns-unofficial-0.1.1/src/net.rs:100:54
[INFO] [stderr]     |
[INFO] [stderr] 100 |     futures::stream::iter(addrs.into_iter().map(Ok)).fold(result, move |prev, addr| {
[INFO] [stderr]     |                                                      ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0283`.
[INFO] [stderr] error: Could not compile `tokio-dns-unofficial`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "c8a9f9116a3507743c3a374f4a15610373d97e4f7ba50b9906059ae130ec7730"`
[INFO] running `"docker" "rm" "-f" "c8a9f9116a3507743c3a374f4a15610373d97e4f7ba50b9906059ae130ec7730"`
[INFO] [stdout] c8a9f9116a3507743c3a374f4a15610373d97e4f7ba50b9906059ae130ec7730