[INFO] cloning repository https://github.com/hendrikcech/hashcode-2018-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hendrikcech/hashcode-2018-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhendrikcech%2Fhashcode-2018-rust"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhendrikcech%2Fhashcode-2018-rust'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b980b3bf0f26df3bbcede8bbe1baa55fa22e944e
[INFO] checking hendrikcech/hashcode-2018-rust against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhendrikcech%2Fhashcode-2018-rust" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hendrikcech/hashcode-2018-rust on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/hendrikcech/hashcode-2018-rust
[INFO] finished tweaking git repo https://github.com/hendrikcech/hashcode-2018-rust
[INFO] tweaked toml for git repo https://github.com/hendrikcech/hashcode-2018-rust written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/hendrikcech/hashcode-2018-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] d68baf4c77f06dda0fc3c10fbc61bdd80e60ed676887fb60250ae9798b21db61
[INFO] running `"docker" "start" "-a" "d68baf4c77f06dda0fc3c10fbc61bdd80e60ed676887fb60250ae9798b21db61"`
[INFO] [stderr]     Checking hashcode2018 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:159:48
[INFO] [stderr]     |
[INFO] [stderr] 159 |         let (score, errors) = simulation.score(assignment);
[INFO] [stderr]     |                                                ^^^^^^^^^^
[INFO] [stderr]     |                                                |
[INFO] [stderr]     |                                                expected reference, found struct `std::vec::Vec`
[INFO] [stderr]     |                                                help: consider borrowing here: `&assignment`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected reference `&[std::vec::Vec<usize>]`
[INFO] [stderr]                   found struct `std::vec::Vec<std::vec::Vec<usize>>`
[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 `hashcode2018`.
[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: build failed
[INFO] running `"docker" "inspect" "d68baf4c77f06dda0fc3c10fbc61bdd80e60ed676887fb60250ae9798b21db61"`
[INFO] running `"docker" "rm" "-f" "d68baf4c77f06dda0fc3c10fbc61bdd80e60ed676887fb60250ae9798b21db61"`
[INFO] [stdout] d68baf4c77f06dda0fc3c10fbc61bdd80e60ed676887fb60250ae9798b21db61