[INFO] crate rusty-wam 0.7.16 is already in cache
[INFO] extracting crate rusty-wam 0.7.16 into work/ex/clippy-test-run/sources/stable/reg/rusty-wam/0.7.16
[INFO] extracting crate rusty-wam 0.7.16 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rusty-wam/0.7.16
[INFO] validating manifest of rusty-wam-0.7.16 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 rusty-wam-0.7.16 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 rusty-wam-0.7.16
[INFO] finished frobbing rusty-wam-0.7.16
[INFO] frobbed toml for rusty-wam-0.7.16 written to work/ex/clippy-test-run/sources/stable/reg/rusty-wam/0.7.16/Cargo.toml
[INFO] started frobbing rusty-wam-0.7.16
[INFO] finished frobbing rusty-wam-0.7.16
[INFO] frobbed toml for rusty-wam-0.7.16 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rusty-wam/0.7.16/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 rusty-wam-0.7.16 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/rusty-wam/0.7.16:/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] 26d7316101c4d06c51b9c39a4e960be1a45c06c2fba2776c9c9679b0a907891f
[INFO] running `"docker" "start" "-a" "26d7316101c4d06c51b9c39a4e960be1a45c06c2fba2776c9c9679b0a907891f"`
[INFO] [stderr]     Checking num-complex v0.2.1
[INFO] [stderr]     Checking num-bigint v0.2.2
[INFO] [stderr]     Checking num-rational v0.2.1
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking prolog_parser v0.7.22
[INFO] [stderr]     Checking rusty-wam v0.7.16 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]     --> src/prolog/instructions.rs:1296:13
[INFO] [stderr]      |
[INFO] [stderr] 1296 |             last_term_arity: last_term_arity,
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `last_term_arity`
[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/prolog/and_stack.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             e: e,
[INFO] [stderr]    |             ^^^^ help: replace it with: `e`
[INFO] [stderr]    |
[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/prolog/and_stack.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |             cp: cp,
[INFO] [stderr]    |             ^^^^^^ help: replace it with: `cp`
[INFO] [stderr]    |
[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/prolog/machine/machine_state.rs:42:25
[INFO] [stderr]    |
[INFO] [stderr] 42 |         DuplicateTerm { state: state }
[INFO] [stderr]    |                         ^^^^^^^^^^^^ help: replace it with: `state`
[INFO] [stderr]    |
[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: 5th binding whose name is just one char
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:1143:21
[INFO] [stderr]      |
[INFO] [stderr] 1143 |                     o => self.p += o
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/prolog/write.rs:189:57
[INFO] [stderr]     |
[INFO] [stderr] 189 |             &IndexingInstruction::SwitchOnTerm(v, c, l, s) =>
[INFO] [stderr]     |                                                         ^
[INFO] [stderr]     |
[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: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/prolog/write.rs:354:13
[INFO] [stderr]     |
[INFO] [stderr] 354 |             write!(stdout(), ".\n").unwrap();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::write_with_newline)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]     --> src/prolog/instructions.rs:1296:13
[INFO] [stderr]      |
[INFO] [stderr] 1296 |             last_term_arity: last_term_arity,
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `last_term_arity`
[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/prolog/and_stack.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             e: e,
[INFO] [stderr]    |             ^^^^ help: replace it with: `e`
[INFO] [stderr]    |
[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/prolog/and_stack.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |             cp: cp,
[INFO] [stderr]    |             ^^^^^^ help: replace it with: `cp`
[INFO] [stderr]    |
[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/prolog/machine/machine_state.rs:42:25
[INFO] [stderr]    |
[INFO] [stderr] 42 |         DuplicateTerm { state: state }
[INFO] [stderr]    |                         ^^^^^^^^^^^^ help: replace it with: `state`
[INFO] [stderr]    |
[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: 5th binding whose name is just one char
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:1143:21
[INFO] [stderr]      |
[INFO] [stderr] 1143 |                     o => self.p += o
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/prolog/write.rs:189:57
[INFO] [stderr]     |
[INFO] [stderr] 189 |             &IndexingInstruction::SwitchOnTerm(v, c, l, s) =>
[INFO] [stderr]     |                                                         ^
[INFO] [stderr]     |
[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: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/prolog/write.rs:354:13
[INFO] [stderr]     |
[INFO] [stderr] 354 |             write!(stdout(), ".\n").unwrap();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::write_with_newline)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]     --> src/prolog/instructions.rs:1310:9
[INFO] [stderr]      |
[INFO] [stderr] 1310 |         return false;
[INFO] [stderr]      |         ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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/prolog/toplevel.rs:235:14
[INFO] [stderr]     |
[INFO] [stderr] 235 |         _ => return Err(ParserError::InconsistentEntry)
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(ParserError::InconsistentEntry)`
[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: All variants have the same postfix: `List`
[INFO] [stderr]    --> src/prolog/machine/machine_errors.rs:216:1
[INFO] [stderr]     |
[INFO] [stderr] 216 | / pub(super) enum CycleSearchResult {
[INFO] [stderr] 217 | |     EmptyList,
[INFO] [stderr] 218 | |     NotList,
[INFO] [stderr] 219 | |     PartialList(usize, usize), // the list length (up to max), and an offset into the heap.
[INFO] [stderr] 220 | |     ProperList(usize), // the list length.
[INFO] [stderr] 221 | |     UntouchedList(usize) // the address of an uniterated Addr::Lis(address).
[INFO] [stderr] 222 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::enum_variant_names)] on by default
[INFO] [stderr]     = help: remove the postfixes and use full paths to the variants instead of glob imports
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:1618:28
[INFO] [stderr]      |
[INFO] [stderr] 1618 |                       } else {
[INFO] [stderr]      |  ____________________________^
[INFO] [stderr] 1619 | |                         if s2.is_expandable() {
[INFO] [stderr] 1620 | |                             Ordering::Less
[INFO] [stderr] 1621 | |                         } else {
[INFO] [stderr] 1622 | |                             s1.cmp(&s2)
[INFO] [stderr] 1623 | |                         }
[INFO] [stderr] 1624 | |                     },
[INFO] [stderr]      | |_____________________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]      |
[INFO] [stderr] 1618 |                     } else if s2.is_expandable() {
[INFO] [stderr] 1619 |     Ordering::Less
[INFO] [stderr] 1620 | } else {
[INFO] [stderr] 1621 |     s1.cmp(&s2)
[INFO] [stderr] 1622 | },
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/prolog/machine/mod.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |         return (0, 0);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `(0, 0)`
[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: this if statement can be collapsed
[INFO] [stderr]    --> src/prolog/codegen.rs:170:21
[INFO] [stderr]     |
[INFO] [stderr] 170 | /                     if self.marker.is_unbound(var.clone()) {
[INFO] [stderr] 171 | |                         if term_loc != GenContext::Head {
[INFO] [stderr] 172 | |                             self.marker.mark_reserved_var(var.clone(), lvl, cell, term_loc,
[INFO] [stderr] 173 | |                                                           &mut target, perm_v!(1), false);
[INFO] [stderr] 174 | |                             continue;
[INFO] [stderr] 175 | |                         }
[INFO] [stderr] 176 | |                     }
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 170 |                     if self.marker.is_unbound(var.clone()) && term_loc != GenContext::Head {
[INFO] [stderr] 171 |     self.marker.mark_reserved_var(var.clone(), lvl, cell, term_loc,
[INFO] [stderr] 172 |                                   &mut target, perm_v!(1), false);
[INFO] [stderr] 173 |     continue;
[INFO] [stderr] 174 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/prolog/debray_allocator.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 | /                     if !self.is_in_use(reg) {
[INFO] [stderr] 56 | |                         if !tvd.no_use_set.contains(&reg) {
[INFO] [stderr] 57 | |                             result = reg;
[INFO] [stderr] 58 | |                             break;
[INFO] [stderr] 59 | |                         }
[INFO] [stderr] 60 | |                     }
[INFO] [stderr]    | |_____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 55 |                     if !self.is_in_use(reg) && !tvd.no_use_set.contains(&reg) {
[INFO] [stderr] 56 |     result = reg;
[INFO] [stderr] 57 |     break;
[INFO] [stderr] 58 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/prolog/debray_allocator.rs:82:21
[INFO] [stderr]    |
[INFO] [stderr] 82 | /                     if !self.is_in_use(reg) {
[INFO] [stderr] 83 | |                         if !tvd.no_use_set.contains(&reg) {
[INFO] [stderr] 84 | |                             if !tvd.conflict_set.contains(&reg) {
[INFO] [stderr] 85 | |                                 result = reg;
[INFO] [stderr] ...  |
[INFO] [stderr] 88 | |                         }
[INFO] [stderr] 89 | |                     }
[INFO] [stderr]    | |_____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 82 |                     if !self.is_in_use(reg) && !tvd.no_use_set.contains(&reg) {
[INFO] [stderr] 83 |     if !tvd.conflict_set.contains(&reg) {
[INFO] [stderr] 84 |         result = reg;
[INFO] [stderr] 85 |         break;
[INFO] [stderr] 86 |     }
[INFO] [stderr] 87 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/prolog/debray_allocator.rs:83:25
[INFO] [stderr]    |
[INFO] [stderr] 83 | /                         if !tvd.no_use_set.contains(&reg) {
[INFO] [stderr] 84 | |                             if !tvd.conflict_set.contains(&reg) {
[INFO] [stderr] 85 | |                                 result = reg;
[INFO] [stderr] 86 | |                                 break;
[INFO] [stderr] 87 | |                             }
[INFO] [stderr] 88 | |                         }
[INFO] [stderr]    | |_________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 83 |                         if !tvd.no_use_set.contains(&reg) && !tvd.conflict_set.contains(&reg) {
[INFO] [stderr] 84 |     result = reg;
[INFO] [stderr] 85 |     break;
[INFO] [stderr] 86 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/prolog/fixtures.rs:55:29
[INFO] [stderr]    |
[INFO] [stderr] 55 | /                             if cn_u == cn_t && *u != ***t {
[INFO] [stderr] 56 | |                                 if !t_data.uses_reg(reg) {
[INFO] [stderr] 57 | |                                     t_data.no_use_set.insert(reg);
[INFO] [stderr] 58 | |                                 }
[INFO] [stderr] 59 | |                             }
[INFO] [stderr]    | |_____________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 55 |                             if cn_u == cn_t && *u != ***t && !t_data.uses_reg(reg) {
[INFO] [stderr] 56 |     t_data.no_use_set.insert(reg);
[INFO] [stderr] 57 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/prolog/heap_print.rs:180:9
[INFO] [stderr]     |
[INFO] [stderr] 180 | /         return match iter.next() {
[INFO] [stderr] 181 | |             None => true,
[INFO] [stderr] 182 | |             Some('*') => false, // if we start with comment token, we must quote.
[INFO] [stderr] 183 | |             Some(c) => if graphic_token_char!(c) {
[INFO] [stderr] ...   |
[INFO] [stderr] 187 | |             }
[INFO] [stderr] 188 | |         }
[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] 180 |         match iter.next() {
[INFO] [stderr] 181 |             None => true,
[INFO] [stderr] 182 |             Some('*') => false, // if we start with comment token, we must quote.
[INFO] [stderr] 183 |             Some(c) => if graphic_token_char!(c) {
[INFO] [stderr] 184 |                 iter.all(|c| graphic_token_char!(c))
[INFO] [stderr] 185 |             } else {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/prolog/heap_print.rs:190:9
[INFO] [stderr]     |
[INFO] [stderr] 190 | /         return match iter.next() {
[INFO] [stderr] 191 | |             None => false,
[INFO] [stderr] 192 | |             Some(c) => if graphic_token_char!(c) {
[INFO] [stderr] 193 | |                 iter.all(|c| graphic_token_char!(c))
[INFO] [stderr] ...   |
[INFO] [stderr] 196 | |             }
[INFO] [stderr] 197 | |         }
[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] 190 |         match iter.next() {
[INFO] [stderr] 191 |             None => false,
[INFO] [stderr] 192 |             Some(c) => if graphic_token_char!(c) {
[INFO] [stderr] 193 |                 iter.all(|c| graphic_token_char!(c))
[INFO] [stderr] 194 |             } else {
[INFO] [stderr] 195 |                 false
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/prolog/heap_print.rs:337:21
[INFO] [stderr]     |
[INFO] [stderr] 337 |                     return iter.next();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `iter.next()`
[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/prolog/heap_print.rs:344:21
[INFO] [stderr]     |
[INFO] [stderr] 344 |                     return None;
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: remove `return` as shown: `None`
[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/prolog/instructions.rs:1310:9
[INFO] [stderr]      |
[INFO] [stderr] 1310 |         return false;
[INFO] [stderr]      |         ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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/prolog/toplevel.rs:235:14
[INFO] [stderr]     |
[INFO] [stderr] 235 |         _ => return Err(ParserError::InconsistentEntry)
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(ParserError::InconsistentEntry)`
[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: All variants have the same postfix: `List`
[INFO] [stderr]    --> src/prolog/machine/machine_errors.rs:216:1
[INFO] [stderr]     |
[INFO] [stderr] 216 | / pub(super) enum CycleSearchResult {
[INFO] [stderr] 217 | |     EmptyList,
[INFO] [stderr] 218 | |     NotList,
[INFO] [stderr] 219 | |     PartialList(usize, usize), // the list length (up to max), and an offset into the heap.
[INFO] [stderr] 220 | |     ProperList(usize), // the list length.
[INFO] [stderr] 221 | |     UntouchedList(usize) // the address of an uniterated Addr::Lis(address).
[INFO] [stderr] 222 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::enum_variant_names)] on by default
[INFO] [stderr]     = help: remove the postfixes and use full paths to the variants instead of glob imports
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]     --> src/prolog/machine/machine_state_impl.rs:1618:28
[INFO] [stderr]      |
[INFO] [stderr] 1618 |                       } else {
[INFO] [stderr]      |  ____________________________^
[INFO] [stderr] 1619 | |                         if s2.is_expandable() {
[INFO] [stderr] 1620 | |                             Ordering::Less
[INFO] [stderr] 1621 | |                         } else {
[INFO] [stderr] 1622 | |                             s1.cmp(&s2)
[INFO] [stderr] 1623 | |                         }
[INFO] [stderr] 1624 | |                     },
[INFO] [stderr]      | |_____________________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]      |
[INFO] [stderr] 1618 |                     } else if s2.is_expandable() {
[INFO] [stderr] 1619 |     Ordering::Less
[INFO] [stderr] 1620 | } else {
[INFO] [stderr] 1621 |     s1.cmp(&s2)
[INFO] [stderr] 1622 | },
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/prolog/machine/mod.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |         return (0, 0);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `(0, 0)`
[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: this if statement can be collapsed
[INFO] [stderr]    --> src/prolog/codegen.rs:170:21
[INFO] [stderr]     |
[INFO] [stderr] 170 | /                     if self.marker.is_unbound(var.clone()) {
[INFO] [stderr] 171 | |                         if term_loc != GenContext::Head {
[INFO] [stderr] 172 | |                             self.marker.mark_reserved_var(var.clone(), lvl, cell, term_loc,
[INFO] [stderr] 173 | |                                                           &mut target, perm_v!(1), false);
[INFO] [stderr] 174 | |                             continue;
[INFO] [stderr] 175 | |                         }
[INFO] [stderr] 176 | |                     }
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 170 |                     if self.marker.is_unbound(var.clone()) && term_loc != GenContext::Head {
[INFO] [stderr] 171 |     self.marker.mark_reserved_var(var.clone(), lvl, cell, term_loc,
[INFO] [stderr] 172 |                                   &mut target, perm_v!(1), false);
[INFO] [stderr] 173 |     continue;
[INFO] [stderr] 174 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/prolog/debray_allocator.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 | /                     if !self.is_in_use(reg) {
[INFO] [stderr] 56 | |                         if !tvd.no_use_set.contains(&reg) {
[INFO] [stderr] 57 | |                             result = reg;
[INFO] [stderr] 58 | |                             break;
[INFO] [stderr] 59 | |                         }
[INFO] [stderr] 60 | |                     }
[INFO] [stderr]    | |_____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 55 |                     if !self.is_in_use(reg) && !tvd.no_use_set.contains(&reg) {
[INFO] [stderr] 56 |     result = reg;
[INFO] [stderr] 57 |     break;
[INFO] [stderr] 58 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/prolog/debray_allocator.rs:82:21
[INFO] [stderr]    |
[INFO] [stderr] 82 | /                     if !self.is_in_use(reg) {
[INFO] [stderr] 83 | |                         if !tvd.no_use_set.contains(&reg) {
[INFO] [stderr] 84 | |                             if !tvd.conflict_set.contains(&reg) {
[INFO] [stderr] 85 | |                                 result = reg;
[INFO] [stderr] ...  |
[INFO] [stderr] 88 | |                         }
[INFO] [stderr] 89 | |                     }
[INFO] [stderr]    | |_____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 82 |                     if !self.is_in_use(reg) && !tvd.no_use_set.contains(&reg) {
[INFO] [stderr] 83 |     if !tvd.conflict_set.contains(&reg) {
[INFO] [stderr] 84 |         result = reg;
[INFO] [stderr] 85 |         break;
[INFO] [stderr] 86 |     }
[INFO] [stderr] 87 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/prolog/debray_allocator.rs:83:25
[INFO] [stderr]    |
[INFO] [stderr] 83 | /                         if !tvd.no_use_set.contains(&reg) {
[INFO] [stderr] 84 | |                             if !tvd.conflict_set.contains(&reg) {
[INFO] [stderr] 85 | |                                 result = reg;
[INFO] [stderr] 86 | |                                 break;
[INFO] [stderr] 87 | |                             }
[INFO] [stderr] 88 | |                         }
[INFO] [stderr]    | |_________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 83 |                         if !tvd.no_use_set.contains(&reg) && !tvd.conflict_set.contains(&reg) {
[INFO] [stderr] 84 |     result = reg;
[INFO] [stderr] 85 |     break;
[INFO] [stderr] 86 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/prolog/fixtures.rs:55:29
[INFO] [stderr]    |
[INFO] [stderr] 55 | /                             if cn_u == cn_t && *u != ***t {
[INFO] [stderr] 56 | |                                 if !t_data.uses_reg(reg) {
[INFO] [stderr] 57 | |                                     t_data.no_use_set.insert(reg);
[INFO] [stderr] 58 | |                                 }
[INFO] [stderr] 59 | |                             }
[INFO] [stderr]    | |_____________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 55 |                             if cn_u == cn_t && *u != ***t && !t_data.uses_reg(reg) {
[INFO] [stderr] 56 |     t_data.no_use_set.insert(reg);
[INFO] [stderr] 57 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/prolog/heap_print.rs:180:9
[INFO] [stderr]     |
[INFO] [stderr] 180 | /         return match iter.next() {
[INFO] [stderr] 181 | |             None => true,
[INFO] [stderr] 182 | |             Some('*') => false, // if we start with comment token, we must quote.
[INFO] [stderr] 183 | |             Some(c) => if graphic_token_char!(c) {
[INFO] [stderr] ...   |
[INFO] [stderr] 187 | |             }
[INFO] [stderr] 188 | |         }
[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] 180 |         match iter.next() {
[INFO] [stderr] 181 |             None => true,
[INFO] [stderr] 182 |             Some('*') => false, // if we start with comment token, we must quote.
[INFO] [stderr] 183 |             Some(c) => if graphic_token_char!(c) {
[INFO] [stderr] 184 |                 iter.all(|c| graphic_token_char!(c))
[INFO] [stderr] 185 |             } else {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/prolog/heap_print.rs:190:9
[INFO] [stderr]     |
[INFO] [stderr] 190 | /         return match iter.next() {
[INFO] [stderr] 191 | |             None => false,
[INFO] [stderr] 192 | |             Some(c) => if graphic_token_char!(c) {
[INFO] [stderr] 193 | |                 iter.all(|c| graphic_token_char!(c))
[INFO] [stderr] ...   |
[INFO] [stderr] 196 | |             }
[INFO] [stderr] 197 | |         }
[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] 190 |         match iter.next() {
[INFO] [stderr] 191 |             None => false,
[INFO] [stderr] 192 |             Some(c) => if graphic_token_char!(c) {
[INFO] [stderr] 193 |                 iter.all(|c| graphic_token_char!(c))
[INFO] [stderr] 194 |             } else {
[INFO] [stderr] 195 |                 false
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/prolog/heap_print.rs:337:21
[INFO] [stderr]     |
[INFO] [stderr] 337 |                     return iter.next();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `iter.next()`
[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/prolog/heap_print.rs:344:21
[INFO] [stderr]     |
[INFO] [stderr] 344 |                     return None;
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: remove `return` as shown: `None`
[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] error[E0308]: mismatched types
[INFO] [stderr]     --> src/prolog/instructions.rs:1034:50
[INFO] [stderr]      |
[INFO] [stderr] 1034 |                     ClauseType::Op(name.clone(), fixity, CodeIndex::default())
[INFO] [stderr]      |                                                  ^^^^^^ expected enum `prolog_parser::ast::Fixity`, found tuple
[INFO] [stderr]      |
[INFO] [stderr]      = note: expected type `prolog_parser::ast::Fixity`
[INFO] [stderr]                 found type `(usize, u32)`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/prolog/toplevel.rs:136:55
[INFO] [stderr]     |
[INFO] [stderr] 136 |         Term::Clause(_, ref name, ref mut terms, Some(Fixity::In))
[INFO] [stderr]     |                                                       ^^^^^^^^^^ expected tuple, found enum `prolog_parser::ast::Fixity`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `(usize, u32)`
[INFO] [stderr]                found type `prolog_parser::ast::Fixity`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/prolog/toplevel.rs:493:63
[INFO] [stderr]     |
[INFO] [stderr] 493 |                     let ct = indices.get_clause_type(name, 0, fixity);
[INFO] [stderr]     |                                                               ^^^^^^ expected enum `prolog_parser::ast::Fixity`, found tuple
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<prolog_parser::ast::Fixity>`
[INFO] [stderr]                found type `std::option::Option<(usize, u32)>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/prolog/toplevel.rs:539:77
[INFO] [stderr]     |
[INFO] [stderr] 539 |                         let ct = indices.get_clause_type(name, terms.len(), fixity);
[INFO] [stderr]     |                                                                             ^^^^^^ expected enum `prolog_parser::ast::Fixity`, found tuple
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<prolog_parser::ast::Fixity>`
[INFO] [stderr]                found type `std::option::Option<(usize, u32)>`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 1 parameter but 0 parameters were supplied
[INFO] [stderr]    --> src/prolog/machine/machine_state.rs:576:23
[INFO] [stderr]     |
[INFO] [stderr] 576 |                     s.set_expandable();
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^ expected 1 parameter
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `set_non_expandable` found for type `&mut prolog_parser::string_list::StringList` in the current scope
[INFO] [stderr]    --> src/prolog/machine/machine_state_impl.rs:188:20
[INFO] [stderr]     |
[INFO] [stderr] 188 |                 s1.set_non_expandable();
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: did you mean `set_expandable`?
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `set_non_expandable` found for type `&mut prolog_parser::string_list::StringList` in the current scope
[INFO] [stderr]    --> src/prolog/machine/machine_state_impl.rs:197:16
[INFO] [stderr]     |
[INFO] [stderr] 197 |             s2.set_non_expandable();
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: did you mean `set_expandable`?
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `set_non_expandable` found for type `&prolog_parser::string_list::StringList` in the current scope
[INFO] [stderr]    --> src/prolog/machine/machine_state_impl.rs:284:35
[INFO] [stderr]     |
[INFO] [stderr] 284 |                                 s.set_non_expandable();
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: did you mean `set_expandable`?
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]     --> src/prolog/instructions.rs:1034:50
[INFO] [stderr]      |
[INFO] [stderr] 1034 |                     ClauseType::Op(name.clone(), fixity, CodeIndex::default())
[INFO] [stderr]      |                                                  ^^^^^^ expected enum `prolog_parser::ast::Fixity`, found tuple
[INFO] [stderr]      |
[INFO] [stderr]      = note: expected type `prolog_parser::ast::Fixity`
[INFO] [stderr]                 found type `(usize, u32)`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/prolog/toplevel.rs:136:55
[INFO] [stderr]     |
[INFO] [stderr] 136 |         Term::Clause(_, ref name, ref mut terms, Some(Fixity::In))
[INFO] [stderr]     |                                                       ^^^^^^^^^^ expected tuple, found enum `prolog_parser::ast::Fixity`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `(usize, u32)`
[INFO] [stderr]                found type `prolog_parser::ast::Fixity`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/prolog/arithmetic.rs:25:67
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 match ClauseType::from(name.clone(), terms.len(), fixity) {
[INFO] [stderr]    |                                                                   ^^^^^^ expected enum `prolog_parser::ast::Fixity`, found tuple
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `std::option::Option<prolog_parser::ast::Fixity>`
[INFO] [stderr]               found type `std::option::Option<(usize, u32)>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/prolog/toplevel.rs:493:63
[INFO] [stderr]     |
[INFO] [stderr] 493 |                     let ct = indices.get_clause_type(name, 0, fixity);
[INFO] [stderr]     |                                                               ^^^^^^ expected enum `prolog_parser::ast::Fixity`, found tuple
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<prolog_parser::ast::Fixity>`
[INFO] [stderr]                found type `std::option::Option<(usize, u32)>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/prolog/toplevel.rs:539:77
[INFO] [stderr]     |
[INFO] [stderr] 539 |                         let ct = indices.get_clause_type(name, terms.len(), fixity);
[INFO] [stderr]     |                                                                             ^^^^^^ expected enum `prolog_parser::ast::Fixity`, found tuple
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<prolog_parser::ast::Fixity>`
[INFO] [stderr]                found type `std::option::Option<(usize, u32)>`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 1 parameter but 0 parameters were supplied
[INFO] [stderr]    --> src/prolog/machine/machine_state.rs:576:23
[INFO] [stderr]     |
[INFO] [stderr] 576 |                     s.set_expandable();
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^ expected 1 parameter
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `set_non_expandable` found for type `&mut prolog_parser::string_list::StringList` in the current scope
[INFO] [stderr]    --> src/prolog/machine/machine_state_impl.rs:188:20
[INFO] [stderr]     |
[INFO] [stderr] 188 |                 s1.set_non_expandable();
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: did you mean `set_expandable`?
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `set_non_expandable` found for type `&mut prolog_parser::string_list::StringList` in the current scope
[INFO] [stderr]    --> src/prolog/machine/machine_state_impl.rs:197:16
[INFO] [stderr]     |
[INFO] [stderr] 197 |             s2.set_non_expandable();
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: did you mean `set_expandable`?
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `set_non_expandable` found for type `&prolog_parser::string_list::StringList` in the current scope
[INFO] [stderr]    --> src/prolog/machine/machine_state_impl.rs:284:35
[INFO] [stderr]     |
[INFO] [stderr] 284 |                                 s.set_non_expandable();
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: did you mean `set_expandable`?
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/prolog/iterators.rs:54:83
[INFO] [stderr]    |
[INFO] [stderr] 54 |                                       ClauseType::from(name.clone(), terms.len(), fixity),
[INFO] [stderr]    |                                                                                   ^^^^^^ expected enum `prolog_parser::ast::Fixity`, found tuple
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `std::option::Option<prolog_parser::ast::Fixity>`
[INFO] [stderr]               found type `std::option::Option<(usize, u32)>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/prolog/iterators.rs:167:70
[INFO] [stderr]     |
[INFO] [stderr] 167 |                 let ct = ClauseType::from(name.clone(), terms.len(), fixity);
[INFO] [stderr]     |                                                                      ^^^^^^ expected enum `prolog_parser::ast::Fixity`, found tuple
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<prolog_parser::ast::Fixity>`
[INFO] [stderr]                found type `std::option::Option<(usize, u32)>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/prolog/arithmetic.rs:25:67
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 match ClauseType::from(name.clone(), terms.len(), fixity) {
[INFO] [stderr]    |                                                                   ^^^^^^ expected enum `prolog_parser::ast::Fixity`, found tuple
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `std::option::Option<prolog_parser::ast::Fixity>`
[INFO] [stderr]               found type `std::option::Option<(usize, u32)>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/prolog/heap_print.rs:416:44
[INFO] [stderr]     |
[INFO] [stderr] 416 |                 self.print_atom(atom, Some(fixity));
[INFO] [stderr]     |                                            ^^^^^^ expected enum `prolog_parser::ast::Fixity`, found tuple
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `prolog_parser::ast::Fixity`
[INFO] [stderr]                found type `(usize, u32)`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 12 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors occurred: E0061, E0308, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0061`.
[INFO] [stderr] error: Could not compile `rusty-wam`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/prolog/iterators.rs:54:83
[INFO] [stderr]    |
[INFO] [stderr] 54 |                                       ClauseType::from(name.clone(), terms.len(), fixity),
[INFO] [stderr]    |                                                                                   ^^^^^^ expected enum `prolog_parser::ast::Fixity`, found tuple
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `std::option::Option<prolog_parser::ast::Fixity>`
[INFO] [stderr]               found type `std::option::Option<(usize, u32)>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/prolog/iterators.rs:167:70
[INFO] [stderr]     |
[INFO] [stderr] 167 |                 let ct = ClauseType::from(name.clone(), terms.len(), fixity);
[INFO] [stderr]     |                                                                      ^^^^^^ expected enum `prolog_parser::ast::Fixity`, found tuple
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<prolog_parser::ast::Fixity>`
[INFO] [stderr]                found type `std::option::Option<(usize, u32)>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/prolog/heap_print.rs:416:44
[INFO] [stderr]     |
[INFO] [stderr] 416 |                 self.print_atom(atom, Some(fixity));
[INFO] [stderr]     |                                            ^^^^^^ expected enum `prolog_parser::ast::Fixity`, found tuple
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `prolog_parser::ast::Fixity`
[INFO] [stderr]                found type `(usize, u32)`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 12 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors occurred: E0061, E0308, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0061`.
[INFO] [stderr] error: Could not compile `rusty-wam`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "26d7316101c4d06c51b9c39a4e960be1a45c06c2fba2776c9c9679b0a907891f"`
[INFO] running `"docker" "rm" "-f" "26d7316101c4d06c51b9c39a4e960be1a45c06c2fba2776c9c9679b0a907891f"`
[INFO] [stdout] 26d7316101c4d06c51b9c39a4e960be1a45c06c2fba2776c9c9679b0a907891f