[INFO] updating cached repository dadrian/rust-ziterate
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dadrian/rust-ziterate
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dadrian/rust-ziterate" "work/ex/clippy-test-run/sources/stable/gh/dadrian/rust-ziterate"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/dadrian/rust-ziterate'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dadrian/rust-ziterate" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/dadrian/rust-ziterate"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/dadrian/rust-ziterate'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d7c6ec0dfcdbc847e65eade08bb0712cfc445cf0
[INFO] sha for GitHub repo dadrian/rust-ziterate: d7c6ec0dfcdbc847e65eade08bb0712cfc445cf0
[INFO] validating manifest of dadrian/rust-ziterate 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 dadrian/rust-ziterate 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 dadrian/rust-ziterate
[INFO] finished frobbing dadrian/rust-ziterate
[INFO] frobbed toml for dadrian/rust-ziterate written to work/ex/clippy-test-run/sources/stable/gh/dadrian/rust-ziterate/Cargo.toml
[INFO] started frobbing dadrian/rust-ziterate
[INFO] finished frobbing dadrian/rust-ziterate
[INFO] frobbed toml for dadrian/rust-ziterate written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/dadrian/rust-ziterate/Cargo.toml
[INFO] crate dadrian/rust-ziterate 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 dadrian/rust-ziterate against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/dadrian/rust-ziterate:/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 -Dclippy::into_iter_on_array" "-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] a48458c4963b0434c52c18ac5727655c4709cb2dd2dd2bbb6aff53753608cd76
[INFO] running `"docker" "start" "-a" "a48458c4963b0434c52c18ac5727655c4709cb2dd2dd2bbb6aff53753608cd76"`
[INFO] [stderr]     Checking rust-ziterate v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |             end: end,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `end`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |             end: end,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `end`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     return p - 1;
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: remove `return` as shown: `p - 1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     return order(e, p) == p - 1;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `order(e, p) == p - 1`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     return true;
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |         return true;
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 | /         return Ok(Cycle {
[INFO] [stderr] 63 | |             g: group.g as u64,
[INFO] [stderr] 64 | |             p: group.p,
[INFO] [stderr] 65 | |             start: start as u64,
[INFO] [stderr] ...  |
[INFO] [stderr] 68 | |             next: next_option,
[INFO] [stderr] 69 | |         });
[INFO] [stderr]    | |___________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 62 |         Ok(Cycle {
[INFO] [stderr] 63 |             g: group.g as u64,
[INFO] [stderr] 64 |             p: group.p,
[INFO] [stderr] 65 |             start: start as u64,
[INFO] [stderr] 66 |             end: end,
[INFO] [stderr] 67 |             curr: Some(start as u64),
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         return result;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     return p - 1;
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: remove `return` as shown: `p - 1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     return order(e, p) == p - 1;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `order(e, p) == p - 1`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     return true;
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |         return true;
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 | /         return Ok(Cycle {
[INFO] [stderr] 63 | |             g: group.g as u64,
[INFO] [stderr] 64 | |             p: group.p,
[INFO] [stderr] 65 | |             start: start as u64,
[INFO] [stderr] ...  |
[INFO] [stderr] 68 | |             next: next_option,
[INFO] [stderr] 69 | |         });
[INFO] [stderr]    | |___________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 62 |         Ok(Cycle {
[INFO] [stderr] 63 |             g: group.g as u64,
[INFO] [stderr] 64 |             p: group.p,
[INFO] [stderr] 65 |             start: start as u64,
[INFO] [stderr] 66 |             end: end,
[INFO] [stderr] 67 |             curr: Some(start as u64),
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         return result;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:129:57
[INFO] [stderr]     |
[INFO] [stderr] 129 |             2, 3, 5, 7, 11, 13, 17, 19, 97, 257, 65537, 16777259, 268435459, 4294967311
[INFO] [stderr]     |                                                         ^^^^^^^^ help: consider: `16_777_259`
[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/lib.rs:129:67
[INFO] [stderr]     |
[INFO] [stderr] 129 |             2, 3, 5, 7, 11, 13, 17, 19, 97, 257, 65537, 16777259, 268435459, 4294967311
[INFO] [stderr]     |                                                                   ^^^^^^^^^ help: consider: `268_435_459`
[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/lib.rs:129:78
[INFO] [stderr]     |
[INFO] [stderr] 129 |             2, 3, 5, 7, 11, 13, 17, 19, 97, 257, 65537, 16777259, 268435459, 4294967311
[INFO] [stderr]     |                                                                              ^^^^^^^^^^ help: consider: `4_294_967_311`
[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: unused variable: `e`
[INFO] [stderr]   --> src/lib.rs:19:10
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn order(e: u32, p: u64) -> u64 {
[INFO] [stderr]    |          ^ help: consider using `_e` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `candidate`
[INFO] [stderr]   --> src/lib.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn is_prime(candidate: u64) -> bool {
[INFO] [stderr]    |             ^^^^^^^^^ help: consider using `_candidate` instead
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `g`
[INFO] [stderr]  --> src/lib.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     g: u32,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `p`
[INFO] [stderr]  --> src/lib.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     p: u64,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `start`
[INFO] [stderr]   --> src/lib.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     start: u64,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `order`
[INFO] [stderr]   --> src/lib.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn order(e: u32, p: u64) -> u64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_generator`
[INFO] [stderr]   --> src/lib.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn is_generator(e: u32, p: u64) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_prime`
[INFO] [stderr]   --> src/lib.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn is_prime(candidate: u64) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `validate`
[INFO] [stderr]   --> src/lib.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn validate(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/lib.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn new(group: Group, start: u32, end: u64) -> Result<Cycle, &'static str> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib.rs:53:35
[INFO] [stderr]    |
[INFO] [stderr] 53 |         match group.p.checked_mul(group.g as u64) {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^ help: try: `u64::from(group.g)`
[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 u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib.rs:57:26
[INFO] [stderr]    |
[INFO] [stderr] 57 |         let next: u64 = (start as u64 * group.g as u64) % group.p;
[INFO] [stderr]    |                          ^^^^^^^^^^^^ help: try: `u64::from(start)`
[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 u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib.rs:57:41
[INFO] [stderr]    |
[INFO] [stderr] 57 |         let next: u64 = (start as u64 * group.g as u64) % group.p;
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^ help: try: `u64::from(group.g)`
[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 u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib.rs:63:16
[INFO] [stderr]    |
[INFO] [stderr] 63 |             g: group.g as u64,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^ help: try: `u64::from(group.g)`
[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 u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib.rs:65:20
[INFO] [stderr]    |
[INFO] [stderr] 65 |             start: start as u64,
[INFO] [stderr]    |                    ^^^^^^^^^^^^ help: try: `u64::from(start)`
[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 u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib.rs:67:24
[INFO] [stderr]    |
[INFO] [stderr] 67 |             curr: Some(start as u64),
[INFO] [stderr]    |                        ^^^^^^^^^^^^ help: try: `u64::from(start)`
[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: unused variable: `e`
[INFO] [stderr]   --> src/lib.rs:19:10
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn order(e: u32, p: u64) -> u64 {
[INFO] [stderr]    |          ^ help: consider using `_e` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `candidate`
[INFO] [stderr]   --> src/lib.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn is_prime(candidate: u64) -> bool {
[INFO] [stderr]    |             ^^^^^^^^^ help: consider using `_candidate` instead
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `start`
[INFO] [stderr]   --> src/lib.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     start: u64,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_generator`
[INFO] [stderr]   --> src/lib.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn is_generator(e: u32, p: u64) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `validate`
[INFO] [stderr]   --> src/lib.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn validate(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/lib.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn new(group: Group, start: u32, end: u64) -> Result<Cycle, &'static str> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib.rs:53:35
[INFO] [stderr]    |
[INFO] [stderr] 53 |         match group.p.checked_mul(group.g as u64) {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^ help: try: `u64::from(group.g)`
[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 u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib.rs:57:26
[INFO] [stderr]    |
[INFO] [stderr] 57 |         let next: u64 = (start as u64 * group.g as u64) % group.p;
[INFO] [stderr]    |                          ^^^^^^^^^^^^ help: try: `u64::from(start)`
[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 u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib.rs:57:41
[INFO] [stderr]    |
[INFO] [stderr] 57 |         let next: u64 = (start as u64 * group.g as u64) % group.p;
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^ help: try: `u64::from(group.g)`
[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 u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib.rs:63:16
[INFO] [stderr]    |
[INFO] [stderr] 63 |             g: group.g as u64,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^ help: try: `u64::from(group.g)`
[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 u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib.rs:65:20
[INFO] [stderr]    |
[INFO] [stderr] 65 |             start: start as u64,
[INFO] [stderr]    |                    ^^^^^^^^^^^^ help: try: `u64::from(start)`
[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 u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib.rs:67:24
[INFO] [stderr]    |
[INFO] [stderr] 67 |             curr: Some(start as u64),
[INFO] [stderr]    |                        ^^^^^^^^^^^^ help: try: `u64::from(start)`
[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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/lib.rs:138:17
[INFO] [stderr]     |
[INFO] [stderr] 138 | /                 match result {
[INFO] [stderr] 139 | |                     Some(c) => composites.push(c),
[INFO] [stderr] 140 | |                     None => {}
[INFO] [stderr] 141 | |                 }
[INFO] [stderr]     | |_________________^ help: try this: `if let Some(c) = result { composites.push(c) }`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "a48458c4963b0434c52c18ac5727655c4709cb2dd2dd2bbb6aff53753608cd76"`
[INFO] running `"docker" "rm" "-f" "a48458c4963b0434c52c18ac5727655c4709cb2dd2dd2bbb6aff53753608cd76"`
[INFO] [stdout] a48458c4963b0434c52c18ac5727655c4709cb2dd2dd2bbb6aff53753608cd76