Nov 28 12:51:48.245 INFO checking JoshMcguigan/fizzbuzz-rs against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 12:51:48.245 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 28 12:51:48.810 INFO [stdout] 6e93330c538c61c5a267e32cbf9badc6bc9d048cf20af7c4fac4de573f981812
Nov 28 12:51:48.812 INFO running `"docker" "start" "-a" "6e93330c538c61c5a267e32cbf9badc6bc9d048cf20af7c4fac4de573f981812"`
Nov 28 12:51:50.940 INFO [stderr] usermod: no changes
Nov 28 12:51:51.015 INFO [stderr]     Checking fizzbuzz-rs v0.1.0 (/source)
Nov 28 12:51:52.236 INFO [stderr] warning: struct is never constructed: `FizzBuzzer`
Nov 28 12:51:52.236 INFO [stderr]  --> src/func.rs:1:1
Nov 28 12:51:52.236 INFO [stderr]   |
Nov 28 12:51:52.236 INFO [stderr] 1 | struct FizzBuzzer<FnFizz, FnBuzz, FnFizzBuzz, FnOther> {
Nov 28 12:51:52.236 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:51:52.236 INFO [stderr]   |
Nov 28 12:51:52.236 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 28 12:51:52.236 INFO [stderr] 
Nov 28 12:51:52.236 INFO [stderr] warning: method is never used: `new`
Nov 28 12:51:52.236 INFO [stderr]   --> src/func.rs:15:5
Nov 28 12:51:52.236 INFO [stderr]    |
Nov 28 12:51:52.236 INFO [stderr] 15 |     fn new(fn_fizz: FnFizz, fn_buzz: FnBuzz, fn_fizzbuzz: FnFizzBuzz, fn_other: FnOther) -> Self {
Nov 28 12:51:52.236 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:51:52.236 INFO [stderr] 
Nov 28 12:51:52.236 INFO [stderr] warning: method is never used: `eval`
Nov 28 12:51:52.236 INFO [stderr]   --> src/func.rs:19:5
Nov 28 12:51:52.236 INFO [stderr]    |
Nov 28 12:51:52.236 INFO [stderr] 19 |     fn eval(&self, num: u32) {
Nov 28 12:51:52.236 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:51:52.236 INFO [stderr] 
Nov 28 12:51:52.236 INFO [stderr] warning: function is never used: `fizzbuzz`
Nov 28 12:51:52.236 INFO [stderr]   --> src/flexible.rs:2:1
Nov 28 12:51:52.236 INFO [stderr]    |
Nov 28 12:51:52.236 INFO [stderr] 2  | / fn fizzbuzz<'a, T>(nums: T)
Nov 28 12:51:52.236 INFO [stderr] 3  | |     where T: IntoIterator<Item = &'a u32>
Nov 28 12:51:52.236 INFO [stderr] 4  | | {
Nov 28 12:51:52.236 INFO [stderr] 5  | |     for num in nums {
Nov 28 12:51:52.236 INFO [stderr] ...  |
Nov 28 12:51:52.236 INFO [stderr] 15 | |     }
Nov 28 12:51:52.236 INFO [stderr] 16 | | }
Nov 28 12:51:52.236 INFO [stderr]    | |_^
Nov 28 12:51:52.236 INFO [stderr] 
Nov 28 12:51:52.236 INFO [stderr] warning: function is never used: `fizzbuzz_vec`
Nov 28 12:51:52.236 INFO [stderr]   --> src/flexible.rs:18:1
Nov 28 12:51:52.236 INFO [stderr]    |
Nov 28 12:51:52.236 INFO [stderr] 18 | fn fizzbuzz_vec(nums: &Vec<u32>) {
Nov 28 12:51:52.236 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:51:52.236 INFO [stderr] 
Nov 28 12:51:52.236 INFO [stderr] warning: struct is never constructed: `FizzBuzz`
Nov 28 12:51:52.236 INFO [stderr]  --> src/display.rs:5:1
Nov 28 12:51:52.236 INFO [stderr]   |
Nov 28 12:51:52.236 INFO [stderr] 5 | struct FizzBuzz(usize);
Nov 28 12:51:52.236 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:51:52.236 INFO [stderr] 
Nov 28 12:51:52.236 INFO [stderr] warning: struct is never constructed: `FizzBuzzer`
Nov 28 12:51:52.236 INFO [stderr]  --> src/iterator.rs:1:1
Nov 28 12:51:52.237 INFO [stderr]   |
Nov 28 12:51:52.237 INFO [stderr] 1 | struct FizzBuzzer {
Nov 28 12:51:52.237 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Nov 28 12:51:52.237 INFO [stderr] 
Nov 28 12:51:52.237 INFO [stderr] warning: method is never used: `new`
Nov 28 12:51:52.237 INFO [stderr]  --> src/iterator.rs:7:5
Nov 28 12:51:52.237 INFO [stderr]   |
Nov 28 12:51:52.237 INFO [stderr] 7 |     fn new(starting_value: u32, length: u32) -> Self {
Nov 28 12:51:52.237 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:51:52.237 INFO [stderr] 
Nov 28 12:51:52.541 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.56s
Nov 28 12:51:52.543 INFO [stderr] su: No module specific data is present
Nov 28 12:51:53.270 INFO running `"docker" "inspect" "6e93330c538c61c5a267e32cbf9badc6bc9d048cf20af7c4fac4de573f981812"`
Nov 28 12:51:53.557 INFO running `"docker" "rm" "-f" "6e93330c538c61c5a267e32cbf9badc6bc9d048cf20af7c4fac4de573f981812"`
Nov 28 12:51:53.920 INFO [stdout] 6e93330c538c61c5a267e32cbf9badc6bc9d048cf20af7c4fac4de573f981812