[INFO] cloning repository https://github.com/jtong/rust-fizzbuzz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jtong/rust-fizzbuzz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtong%2Frust-fizzbuzz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtong%2Frust-fizzbuzz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d95eb8cc7b862bedc0a6b57fc8c70e6154e9a938
[INFO] testing jtong/rust-fizzbuzz against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtong%2Frust-fizzbuzz" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jtong/rust-fizzbuzz on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jtong/rust-fizzbuzz
[INFO] finished tweaking git repo https://github.com/jtong/rust-fizzbuzz
[INFO] tweaked toml for git repo https://github.com/jtong/rust-fizzbuzz written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/jtong/rust-fizzbuzz already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43635c945eec54f6aceb71c6835e6cd01d0f9d8befd139b2a44ff2ddaff97930
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "43635c945eec54f6aceb71c6835e6cd01d0f9d8befd139b2a44ff2ddaff97930", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43635c945eec54f6aceb71c6835e6cd01d0f9d8befd139b2a44ff2ddaff97930", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43635c945eec54f6aceb71c6835e6cd01d0f9d8befd139b2a44ff2ddaff97930", kill_on_drop: false }`
[INFO] [stdout] 43635c945eec54f6aceb71c6835e6cd01d0f9d8befd139b2a44ff2ddaff97930
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9539801cdf39ba5bc9b1991e4562c6830d3bec72238b63dd1e3d6ab01dca56a4
[INFO] running `Command { std: "docker" "start" "-a" "9539801cdf39ba5bc9b1991e4562c6830d3bec72238b63dd1e3d6ab01dca56a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling fizzbuzz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `FizzBuzz`
[INFO] [stdout]  --> src/fizzbuzz.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct FizzBuzz {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `say_it`
[INFO] [stdout]  --> src/fizzbuzz.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn say_it(input: u32) -> String {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `divided_by357`
[INFO] [stdout]   --> src/fizzbuzz.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn divided_by357(input: u32) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `say_it_external`
[INFO] [stdout]   --> src/fizzbuzz.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn say_it_external(input: u32) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "9539801cdf39ba5bc9b1991e4562c6830d3bec72238b63dd1e3d6ab01dca56a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9539801cdf39ba5bc9b1991e4562c6830d3bec72238b63dd1e3d6ab01dca56a4", kill_on_drop: false }`
[INFO] [stdout] 9539801cdf39ba5bc9b1991e4562c6830d3bec72238b63dd1e3d6ab01dca56a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5548f3ff316b1b8e3fcd9744486717bd328da3ca232f00341571565421100e8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a5548f3ff316b1b8e3fcd9744486717bd328da3ca232f00341571565421100e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling fizzbuzz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "a5548f3ff316b1b8e3fcd9744486717bd328da3ca232f00341571565421100e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5548f3ff316b1b8e3fcd9744486717bd328da3ca232f00341571565421100e8", kill_on_drop: false }`
[INFO] [stdout] a5548f3ff316b1b8e3fcd9744486717bd328da3ca232f00341571565421100e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e57f8e777e516521b794bc845dd70c9928402fa7b695cb730d3fbf2bad0558ec
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e57f8e777e516521b794bc845dd70c9928402fa7b695cb730d3fbf2bad0558ec", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 9 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fizzbuzz-9d1b10272b5041ca)
[INFO] [stdout] test test::should_return_1_given_input_is_1_try_external ... ok
[INFO] [stdout] test test::should_return_fizz_given_input_can_be_divided_by_3 ... ok
[INFO] [stdout] test test::should_return_fizz_whizz_given_input_can_be_divided_by_3_and_7 ... ok
[INFO] [stdout] test test::should_return_fizzbuzz_given_input_can_be_divided_by_3_and_5 ... ok
[INFO] [stdout] test test::should_return_string_of_number_given_input_is_normal_number ... ok
[INFO] [stdout] test test::should_return_whizz_given_input_can_be_divided_by_7 ... ok
[INFO] [stdout] test test::should_return_buzz_whizz_given_input_can_be_divided_by_3_5_and_7 ... ok
[INFO] [stdout] test test::should_return_buzz_whizz_given_input_can_be_divided_by_5_and_7 ... ok
[INFO] [stdout] test test::should_return_buzz_given_input_can_be_divided_by_5 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e57f8e777e516521b794bc845dd70c9928402fa7b695cb730d3fbf2bad0558ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e57f8e777e516521b794bc845dd70c9928402fa7b695cb730d3fbf2bad0558ec", kill_on_drop: false }`
[INFO] [stdout] e57f8e777e516521b794bc845dd70c9928402fa7b695cb730d3fbf2bad0558ec