[INFO] updating cached repository https://github.com/hinohi/rust-mancala
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7550e3cfa1707e684f4b2ddf3033d435f82521de
[INFO] checking hinohi/rust-mancala against try#5e633973aa9255a88b65a39484627bb54e6044b3 for pr-66063
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhinohi%2Frust-mancala" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hinohi/rust-mancala on toolchain 5e633973aa9255a88b65a39484627bb54e6044b3
[INFO] running `"/workspace/cargo-home/bin/cargo" "+5e633973aa9255a88b65a39484627bb54e6044b3" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/hinohi/rust-mancala
[INFO] finished tweaking git repo https://github.com/hinohi/rust-mancala
[INFO] tweaked toml for git repo https://github.com/hinohi/rust-mancala written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+5e633973aa9255a88b65a39484627bb54e6044b3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/hinohi/rust-nn`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+5e633973aa9255a88b65a39484627bb54e6044b3" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=allow" "-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" "+5e633973aa9255a88b65a39484627bb54e6044b3" "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] 097d3f9b738b4d7d97cc45bb6437dde273329b9f005a97fd5c67e3c25f51bcc3
[INFO] running `"docker" "start" "-a" "097d3f9b738b4d7d97cc45bb6437dde273329b9f005a97fd5c67e3c25f51bcc3"`
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]     Checking itertools v0.8.1
[INFO] [stderr]     Checking rmp v0.8.8
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking rmp-serde v0.14.0
[INFO] [stderr]     Checking rust-nn v0.1.0 (https://github.com/hinohi/rust-nn#999bdeaa)
[INFO] [stderr]     Checking mancala-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/learn/utils.rs:124:17
[INFO] [stderr]     |
[INFO] [stderr] 119 |     fn next(&mut self) -> Option<Self::Item> {
[INFO] [stderr]     |                           ------------------ expected `std::option::Option<([u8; 12], i8, u8)>` because of return type
[INFO] [stderr] ...
[INFO] [stderr] 124 |                 self.loader.next().unwrap()
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `std::option::Option`, found tuple
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<([u8; 12], i8, u8)>`
[INFO] [stderr]                found type `([u8; 12], i8, u8)`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `mancala-rust`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/learn/utils.rs:124:17
[INFO] [stderr]     |
[INFO] [stderr] 119 |     fn next(&mut self) -> Option<Self::Item> {
[INFO] [stderr]     |                           ------------------ expected `std::option::Option<([u8; 12], i8, u8)>` because of return type
[INFO] [stderr] ...
[INFO] [stderr] 124 |                 self.loader.next().unwrap()
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `std::option::Option`, found tuple
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<([u8; 12], i8, u8)>`
[INFO] [stderr]                found type `([u8; 12], i8, u8)`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `mancala-rust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "097d3f9b738b4d7d97cc45bb6437dde273329b9f005a97fd5c67e3c25f51bcc3"`
[INFO] running `"docker" "rm" "-f" "097d3f9b738b4d7d97cc45bb6437dde273329b9f005a97fd5c67e3c25f51bcc3"`
[INFO] [stdout] 097d3f9b738b4d7d97cc45bb6437dde273329b9f005a97fd5c67e3c25f51bcc3