[INFO] cloning repository https://github.com/sam-wright/bowling_kata
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sam-wright/bowling_kata" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsam-wright%2Fbowling_kata", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsam-wright%2Fbowling_kata'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ffab561c4ee004f14e0ff31fbbbc3ba11d06fd2
[INFO] checking sam-wright/bowling_kata against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsam-wright%2Fbowling_kata" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sam-wright/bowling_kata on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sam-wright/bowling_kata
[INFO] finished tweaking git repo https://github.com/sam-wright/bowling_kata
[INFO] tweaked toml for git repo https://github.com/sam-wright/bowling_kata written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sam-wright/bowling_kata already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 487ee991bdb80f788b8c82df14dabbef6120798fc765365c4cb3c0af6e6e4cf4
[INFO] running `Command { std: "docker" "start" "-a" "487ee991bdb80f788b8c82df14dabbef6120798fc765365c4cb3c0af6e6e4cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "487ee991bdb80f788b8c82df14dabbef6120798fc765365c4cb3c0af6e6e4cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "487ee991bdb80f788b8c82df14dabbef6120798fc765365c4cb3c0af6e6e4cf4", kill_on_drop: false }`
[INFO] [stdout] 487ee991bdb80f788b8c82df14dabbef6120798fc765365c4cb3c0af6e6e4cf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7c2f36f8220996ed222c76e0ee3f93635bed41b3e0a2ee1fe43a4d23feb5db0
[INFO] running `Command { std: "docker" "start" "-a" "a7c2f36f8220996ed222c76e0ee3f93635bed41b3e0a2ee1fe43a4d23feb5db0", kill_on_drop: false }`
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking bowling_kata v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:37:48
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn validate_game(num_frames: usize, game: &Vec<(Frame)>) -> Result<()> {
[INFO] [stdout]    |                                                ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 37 - fn validate_game(num_frames: usize, game: &Vec<(Frame)>) -> Result<()> {
[INFO] [stdout] 37 + fn validate_game(num_frames: usize, game: &Vec<Frame>) -> Result<()> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug, PartialEq)]
[INFO] [stdout] 11 | |     pub enum BowlingError{
[INFO] [stdout] 12 | |         InvalidFrameScore{description("Impossible frame score detected")}
[INFO] [stdout] ...  |
[INFO] [stdout] 16 | |     }
[INFO] [stdout] 17 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug, PartialEq)]
[INFO] [stdout] 11 | |     pub enum BowlingError{
[INFO] [stdout] 12 | |         InvalidFrameScore{description("Impossible frame score detected")}
[INFO] [stdout] ...  |
[INFO] [stdout] 16 | |     }
[INFO] [stdout] 17 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug, PartialEq)]
[INFO] [stdout] 11 | |     pub enum BowlingError{
[INFO] [stdout] 12 | |         InvalidFrameScore{description("Impossible frame score detected")}
[INFO] [stdout] ...  |
[INFO] [stdout] 16 | |     }
[INFO] [stdout] 17 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug, PartialEq)]
[INFO] [stdout] 11 | |     pub enum BowlingError{
[INFO] [stdout] 12 | |         InvalidFrameScore{description("Impossible frame score detected")}
[INFO] [stdout] ...  |
[INFO] [stdout] 16 | |     }
[INFO] [stdout] 17 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]   --> src/main.rs:18:6
[INFO] [stdout]    |
[INFO] [stdout] 18 | type Result<T> = StdResult<T, BowlingError>;
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `roll1`, `roll2`, and `fill_ball` are never read
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Frame {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 22 |     roll1: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 23 |     roll2: Option<u8>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 24 |     fill_ball: Option<u8>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Frame` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_game` is never used
[INFO] [stdout]   --> src/main.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn validate_game(num_frames: usize, game: &Vec<(Frame)>) -> Result<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_frame` is never used
[INFO] [stdout]   --> src/main.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn validate_frame(is_last_frame: bool, frame: &Frame) -> Result<u16> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_strike` is never used
[INFO] [stdout]   --> src/main.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn is_strike(frame: &Frame) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_spare` is never used
[INFO] [stdout]   --> src/main.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn is_spare(frame: &Frame) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `score_game` is never used
[INFO] [stdout]   --> src/main.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn score_game(num_frames: usize, game: &Vec<Frame>) -> Result<u16> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:37:48
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn validate_game(num_frames: usize, game: &Vec<(Frame)>) -> Result<()> {
[INFO] [stdout]    |                                                ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 37 - fn validate_game(num_frames: usize, game: &Vec<(Frame)>) -> Result<()> {
[INFO] [stdout] 37 + fn validate_game(num_frames: usize, game: &Vec<Frame>) -> Result<()> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug, PartialEq)]
[INFO] [stdout] 11 | |     pub enum BowlingError{
[INFO] [stdout] 12 | |         InvalidFrameScore{description("Impossible frame score detected")}
[INFO] [stdout] ...  |
[INFO] [stdout] 16 | |     }
[INFO] [stdout] 17 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug, PartialEq)]
[INFO] [stdout] 11 | |     pub enum BowlingError{
[INFO] [stdout] 12 | |         InvalidFrameScore{description("Impossible frame score detected")}
[INFO] [stdout] ...  |
[INFO] [stdout] 16 | |     }
[INFO] [stdout] 17 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug, PartialEq)]
[INFO] [stdout] 11 | |     pub enum BowlingError{
[INFO] [stdout] 12 | |         InvalidFrameScore{description("Impossible frame score detected")}
[INFO] [stdout] ...  |
[INFO] [stdout] 16 | |     }
[INFO] [stdout] 17 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / quick_error! {
[INFO] [stdout] 10 | |     #[derive(Debug, PartialEq)]
[INFO] [stdout] 11 | |     pub enum BowlingError{
[INFO] [stdout] 12 | |         InvalidFrameScore{description("Impossible frame score detected")}
[INFO] [stdout] ...  |
[INFO] [stdout] 16 | |     }
[INFO] [stdout] 17 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "a7c2f36f8220996ed222c76e0ee3f93635bed41b3e0a2ee1fe43a4d23feb5db0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7c2f36f8220996ed222c76e0ee3f93635bed41b3e0a2ee1fe43a4d23feb5db0", kill_on_drop: false }`
[INFO] [stdout] a7c2f36f8220996ed222c76e0ee3f93635bed41b3e0a2ee1fe43a4d23feb5db0