[INFO] updating cached repository https://github.com/DenSev/rust-chess
[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] 4a3b7afe8b86d7e15b60e7afe7a3179ce93ce29d
[INFO] checking DenSev/rust-chess against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDenSev%2Frust-chess" "/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/DenSev/rust-chess on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/DenSev/rust-chess
[INFO] finished tweaking git repo https://github.com/DenSev/rust-chess
[INFO] tweaked toml for git repo https://github.com/DenSev/rust-chess written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/DenSev/rust-chess already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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=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" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] afd644f63691bf48d158706d5c34be12cfebd0ddcf9a46ed8a0aae19c2d65563
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "afd644f63691bf48d158706d5c34be12cfebd0ddcf9a46ed8a0aae19c2d65563"`
[INFO] [stderr]     Checking rust-chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0599]: no method named `insert` found for struct `std::collections::HashMap<Pos, &Cell>` in the current scope
[INFO] [stderr]    --> src/lib.rs:255:28
[INFO] [stderr]     |
[INFO] [stderr] 255 |                     pieces.insert(Pos { x: j, y: i }, cell_at);
[INFO] [stderr]     |                            ^^^^^^ method not found in `std::collections::HashMap<Pos, &Cell>`
[INFO] [stderr] ...
[INFO] [stderr] 328 | pub struct Pos {
[INFO] [stderr]     | -------------- doesn't satisfy `Pos: std::hash::Hash`
[INFO] [stderr]     |
[INFO] [stderr]     = note: the method `insert` exists but the following trait bounds were not satisfied:
[INFO] [stderr]             `Pos: std::hash::Hash`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/lib.rs:279:35
[INFO] [stderr]     |
[INFO] [stderr] 279 |             if positions.contains(opposing_king_pos) {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                   |
[INFO] [stderr]     |                                   expected reference, found struct `Pos`
[INFO] [stderr]     |                                   help: consider borrowing here: `&opposing_king_pos`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected reference `&_`
[INFO] [stderr]                   found struct `Pos`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `insert` found for struct `std::collections::HashMap<Pos, &Cell>` in the current scope
[INFO] [stderr]    --> src/lib.rs:255:28
[INFO] [stderr]     |
[INFO] [stderr] 255 |                     pieces.insert(Pos { x: j, y: i }, cell_at);
[INFO] [stderr]     |                            ^^^^^^ method not found in `std::collections::HashMap<Pos, &Cell>`
[INFO] [stderr] ...
[INFO] [stderr] 328 | pub struct Pos {
[INFO] [stderr]     | -------------- doesn't satisfy `Pos: std::hash::Hash`
[INFO] [stderr]     |
[INFO] [stderr]     = note: the method `insert` exists but the following trait bounds were not satisfied:
[INFO] [stderr]             `Pos: std::hash::Hash`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/lib.rs:298:34
[INFO] [stderr]     |
[INFO] [stderr] 298 |     pub fn check_board(&self) -> Option<Color> {
[INFO] [stderr]     |            -----------           ^^^^^^^^^^^^^ expected enum `std::option::Option`, found `()`
[INFO] [stderr]     |            |
[INFO] [stderr]     |            implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stderr]     |
[INFO] [stderr]     = note:   expected enum `std::option::Option<Color>`
[INFO] [stderr]             found unit type `()`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/lib.rs:279:35
[INFO] [stderr]     |
[INFO] [stderr] 279 |             if positions.contains(opposing_king_pos) {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                   |
[INFO] [stderr]     |                                   expected reference, found struct `Pos`
[INFO] [stderr]     |                                   help: consider borrowing here: `&opposing_king_pos`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected reference `&_`
[INFO] [stderr]                   found struct `Pos`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/lib.rs:298:34
[INFO] [stderr]     |
[INFO] [stderr] 298 |     pub fn check_board(&self) -> Option<Color> {
[INFO] [stderr]     |            -----------           ^^^^^^^^^^^^^ expected enum `std::option::Option`, found `()`
[INFO] [stderr]     |            |
[INFO] [stderr]     |            implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stderr]     |
[INFO] [stderr]     = note:   expected enum `std::option::Option<Color>`
[INFO] [stderr]             found unit type `()`
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `rust-chess`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `rust-chess`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "afd644f63691bf48d158706d5c34be12cfebd0ddcf9a46ed8a0aae19c2d65563"`
[INFO] running `"docker" "rm" "-f" "afd644f63691bf48d158706d5c34be12cfebd0ddcf9a46ed8a0aae19c2d65563"`
[INFO] [stdout] afd644f63691bf48d158706d5c34be12cfebd0ddcf9a46ed8a0aae19c2d65563
