[INFO] updating cached repository https://github.com/bbatha/boggle
[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] bd23da480e78c9a92b7e79977c8dd5387da81da4
[INFO] checking bbatha/boggle against try#8a749131e7beb72f6edacefd2bdcbed3d67b2112 for pr-72331
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbbatha%2Fboggle" "/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/bbatha/boggle on toolchain 8a749131e7beb72f6edacefd2bdcbed3d67b2112
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/bbatha/boggle
[INFO] finished tweaking git repo https://github.com/bbatha/boggle
[INFO] tweaked toml for git repo https://github.com/bbatha/boggle written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/bbatha/boggle already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "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" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "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] 2467ea0ea089acf72bc181688ed6750c6223b36e55dbff82b010fc92fac18e2b
[INFO] running `"docker" "start" "-a" "2467ea0ea089acf72bc181688ed6750c6223b36e55dbff82b010fc92fac18e2b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking typed-arena v1.5.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking boggle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:23:25
[INFO] [stderr]    |
[INFO] [stderr] 23 |         write!(f, "{}", error::Error::description(self))
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:23:25
[INFO] [stderr]    |
[INFO] [stderr] 23 |         write!(f, "{}", error::Error::description(self))
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:32:32
[INFO] [stderr]    |
[INFO] [stderr] 32 |             Io(ref err) => err.description(),
[INFO] [stderr]    |                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:32:32
[INFO] [stderr]    |
[INFO] [stderr] 32 |             Io(ref err) => err.description(),
[INFO] [stderr]    |                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `has_word`
[INFO] [stderr]   --> src/board.rs:65:8
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fn has_word(&self, word: &[u8]) -> bool {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `solve_single_threaded`
[INFO] [stderr]    --> src/board.rs:102:12
[INFO] [stderr]     |
[INFO] [stderr] 102 |     pub fn solve_single_threaded<'a>(&self, words: &'a str) -> Vec<&'a str> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `contains`
[INFO] [stderr]   --> src/trie.rs:51:12
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn contains(&self, word: &[u8]) -> bool {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `fill`
[INFO] [stderr]   --> src/multivec.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn fill(width: usize, height: usize, depth: usize, value: T) -> Vec3<T>
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.61s
[INFO] running `"docker" "inspect" "2467ea0ea089acf72bc181688ed6750c6223b36e55dbff82b010fc92fac18e2b"`
[INFO] running `"docker" "rm" "-f" "2467ea0ea089acf72bc181688ed6750c6223b36e55dbff82b010fc92fac18e2b"`
[INFO] [stdout] 2467ea0ea089acf72bc181688ed6750c6223b36e55dbff82b010fc92fac18e2b