[INFO] updating cached repository the-wendell/margin_calculator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/the-wendell/margin_calculator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/the-wendell/margin_calculator" "work/ex/clippy-test-run/sources/stable/gh/the-wendell/margin_calculator"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/the-wendell/margin_calculator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/the-wendell/margin_calculator" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/the-wendell/margin_calculator"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/the-wendell/margin_calculator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5d698d65292c77340375c66975732c6c2faa784d
[INFO] sha for GitHub repo the-wendell/margin_calculator: 5d698d65292c77340375c66975732c6c2faa784d
[INFO] validating manifest of the-wendell/margin_calculator on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of the-wendell/margin_calculator on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing the-wendell/margin_calculator
[INFO] finished frobbing the-wendell/margin_calculator
[INFO] frobbed toml for the-wendell/margin_calculator written to work/ex/clippy-test-run/sources/stable/gh/the-wendell/margin_calculator/Cargo.toml
[INFO] started frobbing the-wendell/margin_calculator
[INFO] finished frobbing the-wendell/margin_calculator
[INFO] frobbed toml for the-wendell/margin_calculator written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/the-wendell/margin_calculator/Cargo.toml
[INFO] crate the-wendell/margin_calculator has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting the-wendell/margin_calculator against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/the-wendell/margin_calculator:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3b5c800973f3e25297c7e5114a85c3333072e06a6187ec78aaf2ad23140d306a
[INFO] running `"docker" "start" "-a" "3b5c800973f3e25297c7e5114a85c3333072e06a6187ec78aaf2ad23140d306a"`
[INFO] [stderr]    Compiling libcruby-sys v0.7.5
[INFO] [stderr]     Checking cstr-macro v0.1.0
[INFO] [stderr]     Checking helix v0.7.5
[INFO] [stderr]     Checking margin_calculator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]   --> src/lib.rs:56:11
[INFO] [stderr]    |
[INFO] [stderr] 56 |     while mid != upper_limit || mid != lower_limit {
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(mid - upper_limit).abs() < error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::float_cmp)] on by default
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]   --> src/lib.rs:56:11
[INFO] [stderr]    |
[INFO] [stderr] 56 |     while mid != upper_limit || mid != lower_limit {
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]   --> src/lib.rs:56:33
[INFO] [stderr]    |
[INFO] [stderr] 56 |     while mid != upper_limit || mid != lower_limit {
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(mid - lower_limit).abs() < error`
[INFO] [stderr]    |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]   --> src/lib.rs:56:33
[INFO] [stderr]    |
[INFO] [stderr] 56 |     while mid != upper_limit || mid != lower_limit {
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/lib.rs:71:67
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn calculate_cost_margin_with(values: Cm2Values, margin_category: &String, retail_price: f64, tax_rate: f64) -> f64 {
[INFO] [stderr]    |                                                                   ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: this function has too many arguments (9/7)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::too_many_arguments)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cmp_null)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*mut helix::libc::c_void`) to a reference type (`&'a Cm2Values`)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::transmute_ptr_to_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*mut helix::libc::c_void`) to a reference type (`&'a mut Cm2Values`)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*mut helix::libc::c_void`) to a reference type (`&'a Cm1Values`)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*mut helix::libc::c_void`) to a reference type (`&'a mut Cm1Values`)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*mut helix::libc::c_void`) to a reference type (`&'a Cm0Values`)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*mut helix::libc::c_void`) to a reference type (`&'a mut Cm0Values`)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*mut helix::libc::c_void`) to a reference type (`&'a MarginCalculation`)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*mut helix::libc::c_void`) to a reference type (`&'a mut MarginCalculation`)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: this function has too many arguments (8/7)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: this function has too many arguments (9/7)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `margin_calculator`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]   --> src/lib.rs:56:11
[INFO] [stderr]    |
[INFO] [stderr] 56 |     while mid != upper_limit || mid != lower_limit {
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(mid - upper_limit).abs() < error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::float_cmp)] on by default
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]   --> src/lib.rs:56:11
[INFO] [stderr]    |
[INFO] [stderr] 56 |     while mid != upper_limit || mid != lower_limit {
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]   --> src/lib.rs:56:33
[INFO] [stderr]    |
[INFO] [stderr] 56 |     while mid != upper_limit || mid != lower_limit {
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(mid - lower_limit).abs() < error`
[INFO] [stderr]    |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]   --> src/lib.rs:56:33
[INFO] [stderr]    |
[INFO] [stderr] 56 |     while mid != upper_limit || mid != lower_limit {
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/lib.rs:71:67
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn calculate_cost_margin_with(values: Cm2Values, margin_category: &String, retail_price: f64, tax_rate: f64) -> f64 {
[INFO] [stderr]    |                                                                   ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: this function has too many arguments (9/7)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::too_many_arguments)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cmp_null)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*mut helix::libc::c_void`) to a reference type (`&'a Cm2Values`)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::transmute_ptr_to_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*mut helix::libc::c_void`) to a reference type (`&'a mut Cm2Values`)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*mut helix::libc::c_void`) to a reference type (`&'a Cm1Values`)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*mut helix::libc::c_void`) to a reference type (`&'a mut Cm1Values`)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*mut helix::libc::c_void`) to a reference type (`&'a Cm0Values`)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*mut helix::libc::c_void`) to a reference type (`&'a mut Cm0Values`)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*mut helix::libc::c_void`) to a reference type (`&'a MarginCalculation`)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: Comparing with null is better expressed by the .is_null() method
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_null
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer type (`*mut helix::libc::c_void`) to a reference type (`&'a mut MarginCalculation`)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ref
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: this function has too many arguments (8/7)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: this function has too many arguments (9/7)
[INFO] [stderr]    --> src/lib.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / ruby! {
[INFO] [stderr] 88  | |
[INFO] [stderr] 89  | |     class Calculator {
[INFO] [stderr] 90  | |         def cm0(values: Cm0Values) -> MarginCalculation {
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |     }
[INFO] [stderr] 165 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `margin_calculator`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3b5c800973f3e25297c7e5114a85c3333072e06a6187ec78aaf2ad23140d306a"`
[INFO] running `"docker" "rm" "-f" "3b5c800973f3e25297c7e5114a85c3333072e06a6187ec78aaf2ad23140d306a"`
[INFO] [stdout] 3b5c800973f3e25297c7e5114a85c3333072e06a6187ec78aaf2ad23140d306a