[INFO] cloning repository https://github.com/JoshMcguigan/fizzbuzz-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JoshMcguigan/fizzbuzz-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshMcguigan%2Ffizzbuzz-rs"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshMcguigan%2Ffizzbuzz-rs'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a112853d70f515e16e9b21a148d1941b16e46bdb
[INFO] checking JoshMcguigan/fizzbuzz-rs against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshMcguigan%2Ffizzbuzz-rs" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JoshMcguigan/fizzbuzz-rs on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/JoshMcguigan/fizzbuzz-rs
[INFO] finished tweaking git repo https://github.com/JoshMcguigan/fizzbuzz-rs
[INFO] tweaked toml for git repo https://github.com/JoshMcguigan/fizzbuzz-rs written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/JoshMcguigan/fizzbuzz-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] 763c5dd1168bb3f6348115b4fe8d116b949b81d69bcaa23ee9d427c516fedd0b
[INFO] running `"docker" "start" "-a" "763c5dd1168bb3f6348115b4fe8d116b949b81d69bcaa23ee9d427c516fedd0b"`
[INFO] [stderr]     Checking fizzbuzz-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: struct is never constructed: `FizzBuzzer`
[INFO] [stderr]  --> src/func.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct FizzBuzzer<FnFizz, FnBuzz, FnFizzBuzz, FnOther> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/func.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn new(fn_fizz: FnFizz, fn_buzz: FnBuzz, fn_fizzbuzz: FnFizzBuzz, fn_other: FnOther) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `eval`
[INFO] [stderr]   --> src/func.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn eval(&self, num: u32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fizzbuzz`
[INFO] [stderr]   --> src/flexible.rs:2:1
[INFO] [stderr]    |
[INFO] [stderr] 2  | / fn fizzbuzz<'a, T>(nums: T)
[INFO] [stderr] 3  | |     where T: IntoIterator<Item = &'a u32>
[INFO] [stderr] 4  | | {
[INFO] [stderr] 5  | |     for num in nums {
[INFO] [stderr] ...  |
[INFO] [stderr] 15 | |     }
[INFO] [stderr] 16 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fizzbuzz_vec`
[INFO] [stderr]   --> src/flexible.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn fizzbuzz_vec(nums: &Vec<u32>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/iterator.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fn new(starting_value: u32, length: u32) -> Self {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `"docker" "inspect" "763c5dd1168bb3f6348115b4fe8d116b949b81d69bcaa23ee9d427c516fedd0b"`
[INFO] running `"docker" "rm" "-f" "763c5dd1168bb3f6348115b4fe8d116b949b81d69bcaa23ee9d427c516fedd0b"`
[INFO] [stdout] 763c5dd1168bb3f6348115b4fe8d116b949b81d69bcaa23ee9d427c516fedd0b