[INFO] updating cached repository tyranron/rust-dojo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tyranron/rust-dojo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tyranron/rust-dojo" "work/ex/clippy-test-run/sources/stable/gh/tyranron/rust-dojo"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/tyranron/rust-dojo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tyranron/rust-dojo" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/tyranron/rust-dojo"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/tyranron/rust-dojo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5ef72fdf309e7642f225a91729c399149e131b06
[INFO] sha for GitHub repo tyranron/rust-dojo: 5ef72fdf309e7642f225a91729c399149e131b06
[INFO] validating manifest of tyranron/rust-dojo 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 tyranron/rust-dojo 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 tyranron/rust-dojo
[INFO] finished frobbing tyranron/rust-dojo
[INFO] frobbed toml for tyranron/rust-dojo written to work/ex/clippy-test-run/sources/stable/gh/tyranron/rust-dojo/Cargo.toml
[INFO] started frobbing tyranron/rust-dojo
[INFO] finished frobbing tyranron/rust-dojo
[INFO] frobbed toml for tyranron/rust-dojo written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/tyranron/rust-dojo/Cargo.toml
[INFO] crate tyranron/rust-dojo 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 tyranron/rust-dojo against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/tyranron/rust-dojo:/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] dc01af76977d691a385b5c1ec04d7b38056b4458d12bd8e260c7d5d15fd9e031
[INFO] running `"docker" "start" "-a" "dc01af76977d691a385b5c1ec04d7b38056b4458d12bd8e260c7d5d15fd9e031"`
[INFO] [stderr]     Checking my-dojo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: `cfg_attr` is deprecated for rustfmt and got replaced by tool_attributes
[INFO] [stderr]  --> src/count_of_pos_and_sum_of_neg/mod.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[cfg_attr(rustfmt, rustfmt_skip)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `#[rustfmt::skip]`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::deprecated_cfg_attr)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#deprecated_cfg_attr
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]  --> src/disease_spread/mod.rs:8:21
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let (mut s, mut i, mut max) = (s0 as f64, i0 as f64, i0 as f64);
[INFO] [stderr]   |                     ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: `cfg_attr` is deprecated for rustfmt and got replaced by tool_attributes
[INFO] [stderr]  --> src/count_of_pos_and_sum_of_neg/mod.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[cfg_attr(rustfmt, rustfmt_skip)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `#[rustfmt::skip]`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::deprecated_cfg_attr)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#deprecated_cfg_attr
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]  --> src/disease_spread/mod.rs:8:21
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let (mut s, mut i, mut max) = (s0 as f64, i0 as f64, i0 as f64);
[INFO] [stderr]   |                     ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/irreducible_sum_of_rationals/mod.rs:29:57
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn testing(l: Vec<(i64, i64)>, exp: Option<(i64, i64)>) -> () {
[INFO] [stderr]    |                                                         ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/pi_approximation/mod.rs:28:43
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn testing(epsilon: f64, exp: (i32, f64)) -> () {
[INFO] [stderr]    |                                           ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/pi_approximation/mod.rs:34:23
[INFO] [stderr]    |
[INFO] [stderr] 34 |     testing(0.1, (10, 3.0418396189));
[INFO] [stderr]    |                       ^^^^^^^^^^^^ help: consider: `3.041_839_618_9`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/pi_approximation/mod.rs:35:25
[INFO] [stderr]    |
[INFO] [stderr] 35 |     testing(0.01, (100, 3.1315929036));
[INFO] [stderr]    |                         ^^^^^^^^^^^^ help: consider: `3.131_592_903_6`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/pi_approximation/mod.rs:36:27
[INFO] [stderr]    |
[INFO] [stderr] 36 |     testing(0.001, (1000, 3.1405926538));
[INFO] [stderr]    |                           ^^^^^^^^^^^^ help: consider: `3.140_592_653_8`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/pi_approximation/mod.rs:37:29
[INFO] [stderr]    |
[INFO] [stderr] 37 |     testing(0.0001, (10000, 3.1414926536));
[INFO] [stderr]    |                             ^^^^^^^^^^^^ help: consider: `3.141_492_653_6`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/pi_approximation/mod.rs:38:23
[INFO] [stderr]    |
[INFO] [stderr] 38 |     testing(0.00001, (100001, 3.1416026535));
[INFO] [stderr]    |                       ^^^^^^ help: consider: `100_001`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/pi_approximation/mod.rs:38:31
[INFO] [stderr]    |
[INFO] [stderr] 38 |     testing(0.00001, (100001, 3.1416026535));
[INFO] [stderr]    |                               ^^^^^^^^^^^^ help: consider: `3.141_602_653_5`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/pi_approximation/mod.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |     testing(0.000001, (1000001, 3.1415936536));
[INFO] [stderr]    |             ^^^^^^^^ help: consider: `0.000_001`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/pi_approximation/mod.rs:39:24
[INFO] [stderr]    |
[INFO] [stderr] 39 |     testing(0.000001, (1000001, 3.1415936536));
[INFO] [stderr]    |                        ^^^^^^^ help: consider: `1_000_001`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/pi_approximation/mod.rs:39:33
[INFO] [stderr]    |
[INFO] [stderr] 39 |     testing(0.000001, (1000001, 3.1415936536));
[INFO] [stderr]    |                                 ^^^^^^^^^^^^ help: consider: `3.141_593_653_6`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/pi_approximation/mod.rs:40:24
[INFO] [stderr]    |
[INFO] [stderr] 40 |     testing(0.05, (20, 3.0916238067));
[INFO] [stderr]    |                        ^^^^^^^^^^^^ help: consider: `3.091_623_806_7`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/pile_of_cubes/mod.rs:28:28
[INFO] [stderr]    |
[INFO] [stderr] 28 |         assert_eq!(find_nb(4183059834009), 2022);
[INFO] [stderr]    |                            ^^^^^^^^^^^^^ help: consider: `4_183_059_834_009`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/pile_of_cubes/mod.rs:29:28
[INFO] [stderr]    |
[INFO] [stderr] 29 |         assert_eq!(find_nb(24723578342962), -1);
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^ help: consider: `24_723_578_342_962`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/pile_of_cubes/mod.rs:30:28
[INFO] [stderr]    |
[INFO] [stderr] 30 |         assert_eq!(find_nb(135440716410000), 4824);
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^ help: consider: `135_440_716_410_000`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/pile_of_cubes/mod.rs:31:28
[INFO] [stderr]    |
[INFO] [stderr] 31 |         assert_eq!(find_nb(40539911473216), 3568);
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^ help: consider: `40_539_911_473_216`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/pile_of_cubes/mod.rs:32:28
[INFO] [stderr]    |
[INFO] [stderr] 32 |         assert_eq!(find_nb(26825883955641), 3218);
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^ help: consider: `26_825_883_955_641`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]  --> src/disease_spread/mod.rs:8:36
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let (mut s, mut i, mut max) = (s0 as f64, i0 as f64, i0 as f64);
[INFO] [stderr]   |                                    ^^^^^^^^^ help: try: `f64::from(s0)`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]  --> src/disease_spread/mod.rs:8:47
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let (mut s, mut i, mut max) = (s0 as f64, i0 as f64, i0 as f64);
[INFO] [stderr]   |                                               ^^^^^^^^^ help: try: `f64::from(i0)`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]  --> src/disease_spread/mod.rs:8:58
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let (mut s, mut i, mut max) = (s0 as f64, i0 as f64, i0 as f64);
[INFO] [stderr]   |                                                          ^^^^^^^^^ help: try: `f64::from(i0)`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]  --> src/disease_spread/mod.rs:9:14
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let dt = tm as f64 / n as f64;
[INFO] [stderr]   |              ^^^^^^^^^ help: try: `f64::from(tm)`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]  --> src/disease_spread/mod.rs:9:26
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let dt = tm as f64 / n as f64;
[INFO] [stderr]   |                          ^^^^^^^^ help: try: `f64::from(n)`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/disease_spread/mod.rs:25:14
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let dt = tm as f64 / n as f64;
[INFO] [stderr]    |              ^^^^^^^^^ help: try: `f64::from(tm)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/disease_spread/mod.rs:25:26
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let dt = tm as f64 / n as f64;
[INFO] [stderr]    |                          ^^^^^^^^ help: try: `f64::from(n)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/disease_spread/mod.rs:27:16
[INFO] [stderr]    |
[INFO] [stderr] 27 |         .fold((s0 as f64, i0 as f64, i0 as f64), |(s, i, max), _| {
[INFO] [stderr]    |                ^^^^^^^^^ help: try: `f64::from(s0)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/disease_spread/mod.rs:27:27
[INFO] [stderr]    |
[INFO] [stderr] 27 |         .fold((s0 as f64, i0 as f64, i0 as f64), |(s, i, max), _| {
[INFO] [stderr]    |                           ^^^^^^^^^ help: try: `f64::from(i0)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/disease_spread/mod.rs:27:38
[INFO] [stderr]    |
[INFO] [stderr] 27 |         .fold((s0 as f64, i0 as f64, i0 as f64), |(s, i, max), _| {
[INFO] [stderr]    |                                      ^^^^^^^^^ help: try: `f64::from(i0)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_positives_sum_negatives`
[INFO] [stderr]  --> src/count_of_pos_and_sum_of_neg/mod.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn count_positives_sum_negatives(input: Vec<i32>) -> Vec<i32> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `epidemic_imper`
[INFO] [stderr]  --> src/disease_spread/mod.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn epidemic_imper(tm: i32, n: i32, s0: i32, i0: i32, b: f64, a: f64) -> i32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `epidemic_funct`
[INFO] [stderr]   --> src/disease_spread/mod.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn epidemic_funct(tm: i32, n: i32, s0: i32, i0: i32, b: f64, a: f64) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_fracts`
[INFO] [stderr]  --> src/irreducible_sum_of_rationals/mod.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn sum_fracts(l: Vec<(i64, i64)>) -> Option<(i64, i64)> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `euclid_gcd`
[INFO] [stderr]   --> src/irreducible_sum_of_rationals/mod.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn euclid_gcd(a: i64, b: i64) -> i64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rnd10`
[INFO] [stderr]  --> src/pi_approximation/mod.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn rnd10(f: f64) -> f64 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `iter_pi`
[INFO] [stderr]   --> src/pi_approximation/mod.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn iter_pi(epsilon: f64) -> (i32, f64) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_nb`
[INFO] [stderr]  --> src/pile_of_cubes/mod.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn find_nb(m: u64) -> i32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]  --> src/disease_spread/mod.rs:8:36
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let (mut s, mut i, mut max) = (s0 as f64, i0 as f64, i0 as f64);
[INFO] [stderr]   |                                    ^^^^^^^^^ help: try: `f64::from(s0)`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]  --> src/disease_spread/mod.rs:8:47
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let (mut s, mut i, mut max) = (s0 as f64, i0 as f64, i0 as f64);
[INFO] [stderr]   |                                               ^^^^^^^^^ help: try: `f64::from(i0)`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]  --> src/disease_spread/mod.rs:8:58
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let (mut s, mut i, mut max) = (s0 as f64, i0 as f64, i0 as f64);
[INFO] [stderr]   |                                                          ^^^^^^^^^ help: try: `f64::from(i0)`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]  --> src/disease_spread/mod.rs:9:14
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let dt = tm as f64 / n as f64;
[INFO] [stderr]   |              ^^^^^^^^^ help: try: `f64::from(tm)`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]  --> src/disease_spread/mod.rs:9:26
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let dt = tm as f64 / n as f64;
[INFO] [stderr]   |                          ^^^^^^^^ help: try: `f64::from(n)`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/pi_approximation/mod.rs:21:26
[INFO] [stderr]    |
[INFO] [stderr] 21 |         result += sign / (1 + 2 * iters) as f64;
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(1 + 2 * iters)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/disease_spread/mod.rs:25:14
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let dt = tm as f64 / n as f64;
[INFO] [stderr]    |              ^^^^^^^^^ help: try: `f64::from(tm)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/disease_spread/mod.rs:25:26
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let dt = tm as f64 / n as f64;
[INFO] [stderr]    |                          ^^^^^^^^ help: try: `f64::from(n)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/disease_spread/mod.rs:27:16
[INFO] [stderr]    |
[INFO] [stderr] 27 |         .fold((s0 as f64, i0 as f64, i0 as f64), |(s, i, max), _| {
[INFO] [stderr]    |                ^^^^^^^^^ help: try: `f64::from(s0)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/disease_spread/mod.rs:27:27
[INFO] [stderr]    |
[INFO] [stderr] 27 |         .fold((s0 as f64, i0 as f64, i0 as f64), |(s, i, max), _| {
[INFO] [stderr]    |                           ^^^^^^^^^ help: try: `f64::from(i0)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/disease_spread/mod.rs:27:38
[INFO] [stderr]    |
[INFO] [stderr] 27 |         .fold((s0 as f64, i0 as f64, i0 as f64), |(s, i, max), _| {
[INFO] [stderr]    |                                      ^^^^^^^^^ help: try: `f64::from(i0)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/pi_approximation/mod.rs:21:26
[INFO] [stderr]    |
[INFO] [stderr] 21 |         result += sign / (1 + 2 * iters) as f64;
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(1 + 2 * iters)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "dc01af76977d691a385b5c1ec04d7b38056b4458d12bd8e260c7d5d15fd9e031"`
[INFO] running `"docker" "rm" "-f" "dc01af76977d691a385b5c1ec04d7b38056b4458d12bd8e260c7d5d15fd9e031"`
[INFO] [stdout] dc01af76977d691a385b5c1ec04d7b38056b4458d12bd8e260c7d5d15fd9e031