[INFO] cloning repository https://github.com/tsoding/fourd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tsoding/fourd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsoding%2Ffourd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsoding%2Ffourd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 21be3969d68da2d03b8f7cf9415635719250222f
[INFO] testing tsoding/fourd against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsoding%2Ffourd" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tsoding/fourd on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tsoding/fourd
[INFO] finished tweaking git repo https://github.com/tsoding/fourd
[INFO] tweaked toml for git repo https://github.com/tsoding/fourd written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/tsoding/fourd already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecfc530340532397ab9eb58e662431f00e35d009cf9d3579695ae13fd5d168cf
[INFO] running `Command { std: "docker" "start" "-a" "ecfc530340532397ab9eb58e662431f00e35d009cf9d3579695ae13fd5d168cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecfc530340532397ab9eb58e662431f00e35d009cf9d3579695ae13fd5d168cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecfc530340532397ab9eb58e662431f00e35d009cf9d3579695ae13fd5d168cf", kill_on_drop: false }`
[INFO] [stdout] ecfc530340532397ab9eb58e662431f00e35d009cf9d3579695ae13fd5d168cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46d1699d23dd17292ac4f6d3e6a41b7c9df385397aecb8ffbe58b11e792c773a
[INFO] running `Command { std: "docker" "start" "-a" "46d1699d23dd17292ac4f6d3e6a41b7c9df385397aecb8ffbe58b11e792c773a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling sdl2 v0.33.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling sdl2-sys v0.33.0
[INFO] [stderr]    Compiling fourd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `project_3d_to_2d_ortho`
[INFO] [stdout]   --> src/main.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn project_3d_to_2d_ortho([x, y, _]: Vec3, r: f64) -> [f64; 2] {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `project_4d_to_3d_persp`
[INFO] [stdout]   --> src/main.rs:57:4
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn project_4d_to_3d_persp([x, y, z, u]: Vec4) -> Vec3 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `translate_3d`
[INFO] [stdout]   --> src/main.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn translate_3d([x0, y0, z0]: Vec3, [x1, y1, z1]: Vec3) -> Vec3 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rotate_y_3d`
[INFO] [stdout]   --> src/main.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn rotate_y_3d([x0, y0, z0]: Vec3, theta: f64) -> Vec3 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `id_4d`
[INFO] [stdout]   --> src/main.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn id_4d() -> Mat4x4 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rotmat_4d_xu`
[INFO] [stdout]    --> src/main.rs:105:4
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn rotmat_4d_xu(theta: f64) -> Mat4x4 {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rotmat_4d_yu`
[INFO] [stdout]    --> src/main.rs:114:4
[INFO] [stdout]     |
[INFO] [stdout] 114 | fn rotmat_4d_yu(theta: f64) -> Mat4x4 {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SIZE`
[INFO] [stdout]    --> src/main.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         const SIZE: f64 = 10.0;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `low_range` should have an upper case name
[INFO] [stdout]    --> src/main.rs:165:15
[INFO] [stdout]     |
[INFO] [stdout] 165 |         const low_range: f64 = -1.0;
[INFO] [stdout]     |               ^^^^^^^^^ help: convert the identifier to upper case: `LOW_RANGE`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `high_range` should have an upper case name
[INFO] [stdout]    --> src/main.rs:166:15
[INFO] [stdout]     |
[INFO] [stdout] 166 |         const high_range: f64 = 1.0;
[INFO] [stdout]     |               ^^^^^^^^^^ help: convert the identifier to upper case: `HIGH_RANGE`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ds` should have an upper case name
[INFO] [stdout]    --> src/main.rs:170:15
[INFO] [stdout]     |
[INFO] [stdout] 170 |         const ds: f64 = (high_range - low_range) / (N - 1) as f64;
[INFO] [stdout]     |               ^^ help: convert the identifier to upper case: `DS`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.64s
[INFO] running `Command { std: "docker" "inspect" "46d1699d23dd17292ac4f6d3e6a41b7c9df385397aecb8ffbe58b11e792c773a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46d1699d23dd17292ac4f6d3e6a41b7c9df385397aecb8ffbe58b11e792c773a", kill_on_drop: false }`
[INFO] [stdout] 46d1699d23dd17292ac4f6d3e6a41b7c9df385397aecb8ffbe58b11e792c773a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ff922280ba75faca86b54b7716e776511422ae5d8dc4c86fb37978c4c66a430
[INFO] running `Command { std: "docker" "start" "-a" "0ff922280ba75faca86b54b7716e776511422ae5d8dc4c86fb37978c4c66a430", kill_on_drop: false }`
[INFO] [stderr]    Compiling fourd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `project_3d_to_2d_ortho`
[INFO] [stdout]   --> src/main.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn project_3d_to_2d_ortho([x, y, _]: Vec3, r: f64) -> [f64; 2] {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `project_4d_to_3d_persp`
[INFO] [stdout]   --> src/main.rs:57:4
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn project_4d_to_3d_persp([x, y, z, u]: Vec4) -> Vec3 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `translate_3d`
[INFO] [stdout]   --> src/main.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn translate_3d([x0, y0, z0]: Vec3, [x1, y1, z1]: Vec3) -> Vec3 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rotate_y_3d`
[INFO] [stdout]   --> src/main.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn rotate_y_3d([x0, y0, z0]: Vec3, theta: f64) -> Vec3 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `id_4d`
[INFO] [stdout]   --> src/main.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn id_4d() -> Mat4x4 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rotmat_4d_xu`
[INFO] [stdout]    --> src/main.rs:105:4
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn rotmat_4d_xu(theta: f64) -> Mat4x4 {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rotmat_4d_yu`
[INFO] [stdout]    --> src/main.rs:114:4
[INFO] [stdout]     |
[INFO] [stdout] 114 | fn rotmat_4d_yu(theta: f64) -> Mat4x4 {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `low_range` should have an upper case name
[INFO] [stdout]    --> src/main.rs:165:15
[INFO] [stdout]     |
[INFO] [stdout] 165 |         const low_range: f64 = -1.0;
[INFO] [stdout]     |               ^^^^^^^^^ help: convert the identifier to upper case: `LOW_RANGE`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `high_range` should have an upper case name
[INFO] [stdout]    --> src/main.rs:166:15
[INFO] [stdout]     |
[INFO] [stdout] 166 |         const high_range: f64 = 1.0;
[INFO] [stdout]     |               ^^^^^^^^^^ help: convert the identifier to upper case: `HIGH_RANGE`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ds` should have an upper case name
[INFO] [stdout]    --> src/main.rs:170:15
[INFO] [stdout]     |
[INFO] [stdout] 170 |         const ds: f64 = (high_range - low_range) / (N - 1) as f64;
[INFO] [stdout]     |               ^^ help: convert the identifier to upper case: `DS`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "0ff922280ba75faca86b54b7716e776511422ae5d8dc4c86fb37978c4c66a430", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ff922280ba75faca86b54b7716e776511422ae5d8dc4c86fb37978c4c66a430", kill_on_drop: false }`
[INFO] [stdout] 0ff922280ba75faca86b54b7716e776511422ae5d8dc4c86fb37978c4c66a430
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 936bbcac5a92dcd8e01187bd64993ce7c330ab191660b245ae08e3ef56afe24f
[INFO] running `Command { std: "docker" "start" "-a" "936bbcac5a92dcd8e01187bd64993ce7c330ab191660b245ae08e3ef56afe24f", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: function is never used: `project_3d_to_2d_ortho`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:53:4
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 53 | fn project_3d_to_2d_ortho([x, y, _]: Vec3, r: f64) -> [f64; 2] {
[INFO] [stdout] 
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `project_4d_to_3d_persp`
[INFO] [stderr]   --> src/main.rs:57:4
[INFO] [stderr]    |
[INFO] [stderr] 57 | fn project_4d_to_3d_persp([x, y, z, u]: Vec4) -> Vec3 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `translate_3d`
[INFO] [stderr]   --> src/main.rs:73:4
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn translate_3d([x0, y0, z0]: Vec3, [x1, y1, z1]: Vec3) -> Vec3 {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rotate_y_3d`
[INFO] [stderr]   --> src/main.rs:81:4
[INFO] [stderr]    |
[INFO] [stderr] 81 | fn rotate_y_3d([x0, y0, z0]: Vec3, theta: f64) -> Vec3 {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `id_4d`
[INFO] [stderr]   --> src/main.rs:87:4
[INFO] [stderr]    |
[INFO] [stderr] 87 | fn id_4d() -> Mat4x4 {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rotmat_4d_xu`
[INFO] [stderr]    --> src/main.rs:105:4
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn rotmat_4d_xu(theta: f64) -> Mat4x4 {
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rotmat_4d_yu`
[INFO] [stderr]    --> src/main.rs:114:4
[INFO] [stderr]     |
[INFO] [stderr] 114 | fn rotmat_4d_yu(theta: f64) -> Mat4x4 {
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `low_range` should have an upper case name
[INFO] [stderr]    --> src/main.rs:165:15
[INFO] [stderr]     |
[INFO] [stderr] 165 |         const low_range: f64 = -1.0;
[INFO] [stderr]     |               ^^^^^^^^^ help: convert the identifier to upper case: `LOW_RANGE`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `high_range` should have an upper case name
[INFO] [stderr]    --> src/main.rs:166:15
[INFO] [stderr]     |
[INFO] [stderr] 166 |         const high_range: f64 = 1.0;
[INFO] [stderr]     |               ^^^^^^^^^^ help: convert the identifier to upper case: `HIGH_RANGE`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `ds` should have an upper case name
[INFO] [stderr]    --> src/main.rs:170:15
[INFO] [stderr]     |
[INFO] [stderr] 170 |         const ds: f64 = (high_range - low_range) / (N - 1) as f64;
[INFO] [stderr]     |               ^^ help: convert the identifier to upper case: `DS`
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fourd-61b7cfc63119cb40)
[INFO] running `Command { std: "docker" "inspect" "936bbcac5a92dcd8e01187bd64993ce7c330ab191660b245ae08e3ef56afe24f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "936bbcac5a92dcd8e01187bd64993ce7c330ab191660b245ae08e3ef56afe24f", kill_on_drop: false }`
[INFO] [stdout] 936bbcac5a92dcd8e01187bd64993ce7c330ab191660b245ae08e3ef56afe24f