[INFO] updating cached repository https://github.com/William-Olson/k-means
[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] c6e96ff15e81cb3d5b0d44f1d6132213b94c032e
[INFO] checking William-Olson/k-means against master#bd0bacc694d7d8175804bb6f690cb846bfa4a9ee for pr-71665
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilliam-Olson%2Fk-means" "/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/William-Olson/k-means on toolchain bd0bacc694d7d8175804bb6f690cb846bfa4a9ee
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/William-Olson/k-means
[INFO] finished tweaking git repo https://github.com/William-Olson/k-means
[INFO] tweaked toml for git repo https://github.com/William-Olson/k-means written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/William-Olson/k-means already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-12/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "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" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "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] e7c23db1dd0fa783dc317dd851cb25166482750e1d7396c776c13db1fbed0bc3
[INFO] running `"docker" "start" "-a" "e7c23db1dd0fa783dc317dd851cb25166482750e1d7396c776c13db1fbed0bc3"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking k-means v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/worker/data_object.rs:63:6
[INFO] [stderr]    |
[INFO] [stderr] 63 |      ( diff1.powi(2).sqrt() + diff2.powi(2).sqrt() )
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` 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/util.rs:60:62
[INFO] [stderr]    |
[INFO] [stderr] 60 |       Err(e) => { println!("\nError parsing k argument: {}", Error::description(&e)); 0 },
[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/util.rs:67:55
[INFO] [stderr]    |
[INFO] [stderr] 67 |       Err(er) => println!("\nError reading file: {}", Error::description(&er)),
[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/util.rs:94:61
[INFO] [stderr]    |
[INFO] [stderr] 94 |       Err(er) => panic!("Error: couldn't open {}: {}", dsp, Error::description(&er)),
[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/util.rs:142:55
[INFO] [stderr]     |
[INFO] [stderr] 142 |       Err(er) => panic!("Error creating {}: {}", dsp, Error::description(&er)),
[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/util.rs:157:56
[INFO] [stderr]     |
[INFO] [stderr] 157 |     Err(reason) => panic!("Error writing to file: {}", Error::description(&reason)),
[INFO] [stderr]     |                                                        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/worker/data_object.rs:63:6
[INFO] [stderr]    |
[INFO] [stderr] 63 |      ( diff1.powi(2).sqrt() + diff2.powi(2).sqrt() )
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` 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/util.rs:60:62
[INFO] [stderr]    |
[INFO] [stderr] 60 |       Err(e) => { println!("\nError parsing k argument: {}", Error::description(&e)); 0 },
[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/util.rs:67:55
[INFO] [stderr]    |
[INFO] [stderr] 67 |       Err(er) => println!("\nError reading file: {}", Error::description(&er)),
[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/util.rs:94:61
[INFO] [stderr]    |
[INFO] [stderr] 94 |       Err(er) => panic!("Error: couldn't open {}: {}", dsp, Error::description(&er)),
[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/util.rs:142:55
[INFO] [stderr]     |
[INFO] [stderr] 142 |       Err(er) => panic!("Error creating {}: {}", dsp, Error::description(&er)),
[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/util.rs:157:56
[INFO] [stderr]     |
[INFO] [stderr] 157 |     Err(reason) => panic!("Error writing to file: {}", Error::description(&reason)),
[INFO] [stderr]     |                                                        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.11s
[INFO] running `"docker" "inspect" "e7c23db1dd0fa783dc317dd851cb25166482750e1d7396c776c13db1fbed0bc3"`
[INFO] running `"docker" "rm" "-f" "e7c23db1dd0fa783dc317dd851cb25166482750e1d7396c776c13db1fbed0bc3"`
[INFO] [stdout] e7c23db1dd0fa783dc317dd851cb25166482750e1d7396c776c13db1fbed0bc3