[INFO] cloning repository https://github.com/k2bd/kev-holdem-client-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/k2bd/kev-holdem-client-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk2bd%2Fkev-holdem-client-rust"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk2bd%2Fkev-holdem-client-rust'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 66c5b9cf2579d2d3e1447918e0a5a13e42d8f475
[INFO] checking k2bd/kev-holdem-client-rust against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk2bd%2Fkev-holdem-client-rust" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/k2bd/kev-holdem-client-rust on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/k2bd/kev-holdem-client-rust
[INFO] finished tweaking git repo https://github.com/k2bd/kev-holdem-client-rust
[INFO] tweaked toml for git repo https://github.com/k2bd/kev-holdem-client-rust written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/k2bd/kev-holdem-client-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b90a075e75eeaf19d2b1a9e3467d8f5e2153dabe90bad3b47e41048bd28be51e
[INFO] running `"docker" "start" "-a" "b90a075e75eeaf19d2b1a9e3467d8f5e2153dabe90bad3b47e41048bd28be51e"`
[INFO] [stderr]     Checking log v0.4.0
[INFO] [stderr]     Checking futures-cpupool v0.1.7
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking tokio-io v0.1.4
[INFO] [stderr]     Checking mio v0.6.11
[INFO] [stderr]     Checking tokio-core v0.1.11
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking hyper v0.11.10
[INFO] [stderr]     Checking kev-holdem-client-rust v0.1.0 (/opt/rustwide/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] warning: build failed, waiting for other jobs to finish...
[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" "b90a075e75eeaf19d2b1a9e3467d8f5e2153dabe90bad3b47e41048bd28be51e"`
[INFO] running `"docker" "rm" "-f" "b90a075e75eeaf19d2b1a9e3467d8f5e2153dabe90bad3b47e41048bd28be51e"`
[INFO] [stdout] b90a075e75eeaf19d2b1a9e3467d8f5e2153dabe90bad3b47e41048bd28be51e