[INFO] updating cached repository k2bd/kev-holdem-client-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/k2bd/kev-holdem-client-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/k2bd/kev-holdem-client-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/k2bd/kev-holdem-client-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/k2bd/kev-holdem-client-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/k2bd/kev-holdem-client-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/k2bd/kev-holdem-client-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/k2bd/kev-holdem-client-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 66c5b9cf2579d2d3e1447918e0a5a13e42d8f475
[INFO] sha for GitHub repo k2bd/kev-holdem-client-rust: 66c5b9cf2579d2d3e1447918e0a5a13e42d8f475
[INFO] validating manifest of k2bd/kev-holdem-client-rust 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 k2bd/kev-holdem-client-rust 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 k2bd/kev-holdem-client-rust
[INFO] finished frobbing k2bd/kev-holdem-client-rust
[INFO] frobbed toml for k2bd/kev-holdem-client-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/k2bd/kev-holdem-client-rust/Cargo.toml
[INFO] started frobbing k2bd/kev-holdem-client-rust
[INFO] finished frobbing k2bd/kev-holdem-client-rust
[INFO] frobbed toml for k2bd/kev-holdem-client-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/k2bd/kev-holdem-client-rust/Cargo.toml
[INFO] crate k2bd/kev-holdem-client-rust 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 k2bd/kev-holdem-client-rust 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/k2bd/kev-holdem-client-rust:/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] 5edd642ed22b906c6f89f7d11e818b2f467016b1046e3189b884c50113f6ca63
[INFO] running `"docker" "start" "-a" "5edd642ed22b906c6f89f7d11e818b2f467016b1046e3189b884c50113f6ca63"`
[INFO] [stderr]    Compiling bytes v0.4.5
[INFO] [stderr]    Compiling futures-cpupool v0.1.7
[INFO] [stderr]    Compiling tokio-io v0.1.4
[INFO] [stderr]    Compiling tokio-core v0.1.11
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling hyper v0.11.10
[INFO] [stderr]    Compiling kev-holdem-client-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0425]: cannot find value `json` in this scope
[INFO] [stderr]   --> src/main.rs:18:41
[INFO] [stderr]    |
[INFO] [stderr] 18 |     req.headers_mut().set(ContentLength(json.len() as u64));
[INFO] [stderr]    |                                         ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `json` in this scope
[INFO] [stderr]   --> src/main.rs:19:18
[INFO] [stderr]    |
[INFO] [stderr] 19 |     req.set_body(json);
[INFO] [stderr]    |                  ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `client` in this scope
[INFO] [stderr]   --> src/main.rs:21:16
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let post = client.request(req).and_then(|res| {
[INFO] [stderr]    |                ^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stderr]   --> src/main.rs:15:15
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let uri = "localhost:8000/reg".parse()?;
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stderr]    = note: required by `std::ops::Try::from_error`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0425.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `kev-holdem-client-rust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5edd642ed22b906c6f89f7d11e818b2f467016b1046e3189b884c50113f6ca63"`
[INFO] running `"docker" "rm" "-f" "5edd642ed22b906c6f89f7d11e818b2f467016b1046e3189b884c50113f6ca63"`
[INFO] [stdout] 5edd642ed22b906c6f89f7d11e818b2f467016b1046e3189b884c50113f6ca63