[INFO] updating cached repository https://github.com/JoshMcguigan/fizzbuzz-rs [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] a112853d70f515e16e9b21a148d1941b16e46bdb [INFO] testing JoshMcguigan/fizzbuzz-rs against beta-2019-09-28 for beta-1.39-1 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshMcguigan%2Ffizzbuzz-rs" "work/builds/worker-4/source"` [INFO] [stderr] Cloning into 'work/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/JoshMcguigan/fizzbuzz-rs on toolchain beta-2019-09-28 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "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 work/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/JoshMcguigan/fizzbuzz-rs already has a lockfile, it will not be regenerated [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2019-09-28" "build" "--frozen"` [INFO] [stdout] 99016a1d04ea66eb012331cb8eb6614b4566fb327ffb341d2dbd7c9845bf1142 [INFO] running `"docker" "start" "-a" "99016a1d04ea66eb012331cb8eb6614b4566fb327ffb341d2dbd7c9845bf1142"` [INFO] [stderr] Compiling 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 { [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 [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) { [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 0.33s [INFO] running `"docker" "inspect" "99016a1d04ea66eb012331cb8eb6614b4566fb327ffb341d2dbd7c9845bf1142"` [INFO] running `"docker" "rm" "-f" "99016a1d04ea66eb012331cb8eb6614b4566fb327ffb341d2dbd7c9845bf1142"` [INFO] [stdout] 99016a1d04ea66eb012331cb8eb6614b4566fb327ffb341d2dbd7c9845bf1142 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2019-09-28" "test" "--frozen" "--no-run"` [INFO] [stdout] 9be72ee569b67edb774fc5430f4c40d2a08a92545e9b815df5d777eb7a30c4e7 [INFO] running `"docker" "start" "-a" "9be72ee569b67edb774fc5430f4c40d2a08a92545e9b815df5d777eb7a30c4e7"` [INFO] [stderr] Compiling fizzbuzz-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.81s [INFO] running `"docker" "inspect" "9be72ee569b67edb774fc5430f4c40d2a08a92545e9b815df5d777eb7a30c4e7"` [INFO] running `"docker" "rm" "-f" "9be72ee569b67edb774fc5430f4c40d2a08a92545e9b815df5d777eb7a30c4e7"` [INFO] [stdout] 9be72ee569b67edb774fc5430f4c40d2a08a92545e9b815df5d777eb7a30c4e7 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2019-09-28" "test" "--frozen"` [INFO] [stdout] b8726017e8de07d816f934878bb94bbda03fbdaf6240d58350f70e2d0a03d1a7 [INFO] running `"docker" "start" "-a" "b8726017e8de07d816f934878bb94bbda03fbdaf6240d58350f70e2d0a03d1a7"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/fizzbuzz_rs-697f61c00e14680e [INFO] [stdout] [INFO] [stdout] running 9 tests [INFO] [stdout] test enumeration::tests::display ... ok [INFO] [stdout] test enumeration::tests::from ... ok [INFO] [stdout] test display::test::it_works ... ok [INFO] [stdout] test enumeration::tests::into ... ok [INFO] [stdout] test flexible::tests::it_works ... ok [INFO] [stdout] test func::tests::it_works ... ok [INFO] [stdout] test intro::tests::using_if_else ... ok [INFO] [stdout] test intro::tests::using_match ... ok [INFO] [stdout] test iterator::tests::it_works ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "b8726017e8de07d816f934878bb94bbda03fbdaf6240d58350f70e2d0a03d1a7"` [INFO] running `"docker" "rm" "-f" "b8726017e8de07d816f934878bb94bbda03fbdaf6240d58350f70e2d0a03d1a7"` [INFO] [stdout] b8726017e8de07d816f934878bb94bbda03fbdaf6240d58350f70e2d0a03d1a7