[INFO] cloning repository https://github.com/mingyli/ray-tracer [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mingyli/ray-tracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingyli%2Fray-tracer", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingyli%2Fray-tracer'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e978b3f49c2e1f66dfe8458864d559015035c3b2 [INFO] testing mingyli/ray-tracer against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingyli%2Fray-tracer" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/mingyli/ray-tracer [INFO] finished tweaking git repo https://github.com/mingyli/ray-tracer [INFO] tweaked toml for git repo https://github.com/mingyli/ray-tracer written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/mingyli/ray-tracer on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/mingyli/ray-tracer 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded signal-hook-registry v1.2.0 [INFO] [stderr] Downloaded tokio-macros v0.2.4 [INFO] [stderr] Downloaded arc-swap v0.4.4 [INFO] [stderr] Downloaded mio-named-pipes v0.1.6 [INFO] [stderr] Downloaded miow v0.3.3 [INFO] [stderr] Downloaded socket2 v0.3.11 [INFO] [stderr] Downloaded hermit-abi v0.1.7 [INFO] [stderr] Downloaded indicatif v0.14.0 [INFO] [stderr] Downloaded console v0.9.2 [INFO] [stderr] Downloaded bytes v0.5.4 [INFO] [stderr] Downloaded pin-project-lite v0.1.4 [INFO] [stderr] Downloaded tokio v0.2.11 [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 81d48cd9af6536b36f40cded7a03d27a5142df8100c25688270694b4cda92c91 [INFO] running `Command { std: "docker" "start" "-a" "81d48cd9af6536b36f40cded7a03d27a5142df8100c25688270694b4cda92c91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "81d48cd9af6536b36f40cded7a03d27a5142df8100c25688270694b4cda92c91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "81d48cd9af6536b36f40cded7a03d27a5142df8100c25688270694b4cda92c91", kill_on_drop: false }` [INFO] [stdout] 81d48cd9af6536b36f40cded7a03d27a5142df8100c25688270694b4cda92c91 [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 9755e79b3e396cd822ca8a28f42ec5e25e47c47b28561b6800b6a48b42293583 [INFO] running `Command { std: "docker" "start" "-a" "9755e79b3e396cd822ca8a28f42ec5e25e47c47b28561b6800b6a48b42293583", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling syn v1.0.15 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling futures-core v0.3.4 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling futures-sink v0.3.4 [INFO] [stderr] Compiling unicode-width v0.1.7 [INFO] [stderr] Compiling futures-io v0.3.4 [INFO] [stderr] Compiling regex-syntax v0.6.14 [INFO] [stderr] Compiling futures-task v0.3.4 [INFO] [stderr] Compiling pin-utils v0.1.0-alpha.4 [INFO] [stderr] Compiling arc-swap v0.4.4 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling bytes v0.5.4 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling number_prefix v0.3.0 [INFO] [stderr] Compiling pin-project-lite v0.1.4 [INFO] [stderr] Compiling futures-channel v0.3.4 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling itertools v0.8.2 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling termios v0.3.1 [INFO] [stderr] Compiling clicolors-control v1.0.1 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling num_cpus v1.12.0 [INFO] [stderr] Compiling signal-hook-registry v1.2.0 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling mio v0.6.21 [INFO] [stderr] Compiling regex v1.3.4 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling console v0.9.2 [INFO] [stderr] Compiling indicatif v0.14.0 [INFO] [stderr] Compiling proc-macro-hack v0.5.11 [INFO] [stderr] Compiling tokio-macros v0.2.4 [INFO] [stderr] Compiling tokio v0.2.11 [INFO] [stderr] Compiling futures-macro v0.3.4 [INFO] [stderr] Compiling futures-util v0.3.4 [INFO] [stderr] Compiling futures-executor v0.3.4 [INFO] [stderr] Compiling futures v0.3.4 [INFO] [stderr] Compiling ray-tracer v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/camera.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 11 | impl Camera { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 12 | pub fn new(origin: Vec3, lower_left: Vec3, horizontal: Vec3, vertical: Vec3) -> Camera { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `new` and `demo` are never used [INFO] [stdout] --> src/object.rs:74:12 [INFO] [stdout] | [INFO] [stdout] 73 | impl World { [INFO] [stdout] | ---------- associated functions in this implementation [INFO] [stdout] 74 | pub fn new(objects: Vec>) -> World { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 78 | pub fn demo() -> World { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/object.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 15 | fn hit(&self, ray: &Ray, t_min: f32, t_max: f32) -> Option; [INFO] [stdout] | ^^^^^ this lifetime flows to the output --- the lifetime gets resolved as `'_` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 15 | fn hit(&self, ray: &Ray, t_min: f32, t_max: f32) -> Option>; [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/object.rs:35:12 [INFO] [stdout] | [INFO] [stdout] 35 | fn hit(&self, ray: &Ray, t_min: f32, t_max: f32) -> Option { [INFO] [stdout] | ^^^^^ this lifetime flows to the output --- the lifetime gets resolved as `'_` [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 35 | fn hit(&self, ray: &Ray, t_min: f32, t_max: f32) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/object.rs:187:12 [INFO] [stdout] | [INFO] [stdout] 187 | fn hit(&self, ray: &Ray, t_min: f32, t_max: f32) -> Option { [INFO] [stdout] | ^^^^^ this lifetime flows to the output --- the lifetime gets resolved as `'_` [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 187 | fn hit(&self, ray: &Ray, t_min: f32, t_max: f32) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.29s [INFO] running `Command { std: "docker" "inspect" "9755e79b3e396cd822ca8a28f42ec5e25e47c47b28561b6800b6a48b42293583", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9755e79b3e396cd822ca8a28f42ec5e25e47c47b28561b6800b6a48b42293583", kill_on_drop: false }` [INFO] [stdout] 9755e79b3e396cd822ca8a28f42ec5e25e47c47b28561b6800b6a48b42293583 [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 0414b990eb2e095a07e3dfb4352eb1f9f72539ab2b5ca4c01548da899994773f [INFO] running `Command { std: "docker" "start" "-a" "0414b990eb2e095a07e3dfb4352eb1f9f72539ab2b5ca4c01548da899994773f", kill_on_drop: false }` [INFO] [stderr] Compiling ray-tracer v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/camera.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 11 | impl Camera { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 12 | pub fn new(origin: Vec3, lower_left: Vec3, horizontal: Vec3, vertical: Vec3) -> Camera { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `new` and `demo` are never used [INFO] [stdout] --> src/object.rs:74:12 [INFO] [stdout] | [INFO] [stdout] 73 | impl World { [INFO] [stdout] | ---------- associated functions in this implementation [INFO] [stdout] 74 | pub fn new(objects: Vec>) -> World { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 78 | pub fn demo() -> World { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/object.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 15 | fn hit(&self, ray: &Ray, t_min: f32, t_max: f32) -> Option; [INFO] [stdout] | ^^^^^ this lifetime flows to the output --- the lifetime gets resolved as `'_` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 15 | fn hit(&self, ray: &Ray, t_min: f32, t_max: f32) -> Option>; [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/object.rs:35:12 [INFO] [stdout] | [INFO] [stdout] 35 | fn hit(&self, ray: &Ray, t_min: f32, t_max: f32) -> Option { [INFO] [stdout] | ^^^^^ this lifetime flows to the output --- the lifetime gets resolved as `'_` [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 35 | fn hit(&self, ray: &Ray, t_min: f32, t_max: f32) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/object.rs:187:12 [INFO] [stdout] | [INFO] [stdout] 187 | fn hit(&self, ray: &Ray, t_min: f32, t_max: f32) -> Option { [INFO] [stdout] | ^^^^^ this lifetime flows to the output --- the lifetime gets resolved as `'_` [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 187 | fn hit(&self, ray: &Ray, t_min: f32, t_max: f32) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.70s [INFO] running `Command { std: "docker" "inspect" "0414b990eb2e095a07e3dfb4352eb1f9f72539ab2b5ca4c01548da899994773f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0414b990eb2e095a07e3dfb4352eb1f9f72539ab2b5ca4c01548da899994773f", kill_on_drop: false }` [INFO] [stdout] 0414b990eb2e095a07e3dfb4352eb1f9f72539ab2b5ca4c01548da899994773f [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 51f7d8d74a24af53eff5040f09d691c5eb7d51c429a3c951aa9b53d188e29051 [INFO] running `Command { std: "docker" "start" "-a" "51f7d8d74a24af53eff5040f09d691c5eb7d51c429a3c951aa9b53d188e29051", kill_on_drop: false }` [INFO] [stderr] warning: associated function `new` is never used [INFO] [stderr] --> src/camera.rs:12:12 [INFO] [stderr] | [INFO] [stderr] 11 | impl Camera { [INFO] [stderr] | ----------- associated function in this implementation [INFO] [stderr] 12 | pub fn new(origin: Vec3, lower_left: Vec3, horizontal: Vec3, vertical: Vec3) -> Camera { [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated functions `new` and `demo` are never used [INFO] [stderr] --> src/object.rs:74:12 [INFO] [stderr] | [INFO] [stderr] 73 | impl World { [INFO] [stderr] | ---------- associated functions in this implementation [INFO] [stderr] 74 | pub fn new(objects: Vec>) -> World { [INFO] [stderr] | ^^^ [INFO] [stderr] ... [INFO] [stderr] 78 | pub fn demo() -> World { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/object.rs:15:12 [INFO] [stderr] | [INFO] [stderr] 15 | fn hit(&self, ray: &Ray, t_min: f32, t_max: f32) -> Option; [INFO] [stderr] | ^^^^^ this lifetime flows to the output --- the lifetime gets resolved as `'_` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 15 | fn hit(&self, ray: &Ray, t_min: f32, t_max: f32) -> Option>; [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/object.rs:35:12 [INFO] [stderr] | [INFO] [stderr] 35 | fn hit(&self, ray: &Ray, t_min: f32, t_max: f32) -> Option { [INFO] [stderr] | ^^^^^ this lifetime flows to the output --- the lifetime gets resolved as `'_` [INFO] [stderr] | [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 35 | fn hit(&self, ray: &Ray, t_min: f32, t_max: f32) -> Option> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/object.rs:187:12 [INFO] [stderr] | [INFO] [stderr] 187 | fn hit(&self, ray: &Ray, t_min: f32, t_max: f32) -> Option { [INFO] [stderr] | ^^^^^ this lifetime flows to the output --- the lifetime gets resolved as `'_` [INFO] [stderr] | [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 187 | fn hit(&self, ray: &Ray, t_min: f32, t_max: f32) -> Option> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `ray-tracer` (bin "ray-tracer" test) generated 5 warnings (run `cargo fix --bin "ray-tracer" --tests` to apply 3 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/ray_tracer-ab704dcf00a007e1) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "51f7d8d74a24af53eff5040f09d691c5eb7d51c429a3c951aa9b53d188e29051", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "51f7d8d74a24af53eff5040f09d691c5eb7d51c429a3c951aa9b53d188e29051", kill_on_drop: false }` [INFO] [stdout] 51f7d8d74a24af53eff5040f09d691c5eb7d51c429a3c951aa9b53d188e29051