[INFO] cloning repository https://github.com/martenmh/alternating-fixpoint
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/martenmh/alternating-fixpoint" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartenmh%2Falternating-fixpoint", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartenmh%2Falternating-fixpoint'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6135e8943f5f1241d67d5a9360262dff514c3b56
[INFO] testing martenmh/alternating-fixpoint against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartenmh%2Falternating-fixpoint" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/martenmh/alternating-fixpoint
[INFO] finished tweaking git repo https://github.com/martenmh/alternating-fixpoint
[INFO] tweaked toml for git repo https://github.com/martenmh/alternating-fixpoint written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/martenmh/alternating-fixpoint on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/martenmh/alternating-fixpoint already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7443b44c25be6a3ad058daf4c3e7050a71489fa370111cc14aee79de0e47307
[INFO] running `Command { std: "docker" "start" "-a" "b7443b44c25be6a3ad058daf4c3e7050a71489fa370111cc14aee79de0e47307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7443b44c25be6a3ad058daf4c3e7050a71489fa370111cc14aee79de0e47307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7443b44c25be6a3ad058daf4c3e7050a71489fa370111cc14aee79de0e47307", kill_on_drop: false }`
[INFO] [stdout] b7443b44c25be6a3ad058daf4c3e7050a71489fa370111cc14aee79de0e47307
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cbd33193ef394498a9004911ee76edd39bef64eaf3046781acab73b09eb684e
[INFO] running `Command { std: "docker" "start" "-a" "6cbd33193ef394498a9004911ee76edd39bef64eaf3046781acab73b09eb684e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling home v0.5.12
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling unicode-width v0.2.2
[INFO] [stderr]    Compiling fd-lock v4.0.4
[INFO] [stderr]    Compiling radix_trie v0.2.1
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling rustyline v17.0.2
[INFO] [stderr]    Compiling alternating-fixpoint v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Error` and `Result`
[INFO] [stdout]  --> src/cli/command.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::error::{Error, Result};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/cli/run.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::fmt`
[INFO] [stdout]  --> src/language/glossary.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::fmt;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/language/glossary.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::language::cursor::CursorError`
[INFO] [stdout]  --> src/language/glossary.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::language::cursor::CursorError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::language::ground::GroundLiteral`
[INFO] [stdout]  --> src/language/glossary.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::language::ground::GroundLiteral;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Write`
[INFO] [stdout]   --> src/language/pretty.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |         use std::fmt::Write;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `iter`
[INFO] [stdout]  --> src/language/semantics.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     iter, result,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str`
[INFO] [stdout]    --> src/cli/command.rs:117:15
[INFO] [stdout]     |
[INFO] [stdout] 117 | fn set_config(str: &str) -> () {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]  --> src/cli/run.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run_line(line: &str) {}
[INFO] [stdout]   |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/language/cursor.rs:119:39
[INFO] [stdout]     |
[INFO] [stdout] 119 |         !self.check_after_whitespace(|c: char| true) // there are still non-whitespace characters left
[INFO] [stdout]     |                                       ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/language/parse.rs:43:39
[INFO] [stdout]    |
[INFO] [stdout] 43 |             ParseError::StringError { err } => todo!(),
[INFO] [stdout]    |                                       ^^^ help: try ignoring the field: `err: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `term`
[INFO] [stdout]   --> src/language/parse.rs:47:37
[INFO] [stdout]    |
[INFO] [stdout] 47 |             ParseError::InvalidAtom(term, _) => todo!(),
[INFO] [stdout]    |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_term`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/language/semantics.rs:118:50
[INFO] [stdout]     |
[INFO] [stdout] 118 |     pub fn immediate_consequence_operator(&self, i: &LiteralSet) {
[INFO] [stdout]     |                                                  ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `loops` is assigned to, but never used
[INFO] [stdout]    --> src/language/semantics.rs:189:13
[INFO] [stdout]     |
[INFO] [stdout] 189 |         let mut loops = 0;
[INFO] [stdout]     |             ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_loops` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `loops` is never read
[INFO] [stdout]    --> src/language/semantics.rs:192:13
[INFO] [stdout]     |
[INFO] [stdout] 192 |             loops += 1;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rule`
[INFO] [stdout]    --> src/language/semantics.rs:219:26
[INFO] [stdout]     |
[INFO] [stdout] 219 | pub fn semi_naive_ground(rule: &Program) -> Result<GroundProgram> {
[INFO] [stdout]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_rule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Interpretation` is more private than the item `semantics::<impl ground::GroundProgram>::alternating_fixpoint`
[INFO] [stdout]    --> src/language/semantics.rs:188:5
[INFO] [stdout]     |
[INFO] [stdout] 188 |     pub fn alternating_fixpoint(&self) -> Result<Interpretation> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `semantics::<impl ground::GroundProgram>::alternating_fixpoint` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `Interpretation` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/language/semantics.rs:22:1
[INFO] [stdout]     |
[INFO] [stdout]  22 | struct Interpretation {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `hidden` is never read
[INFO] [stdout]   --> src/cli/command.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Command {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     hidden: bool, // Show command in general help
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Command` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `usage` and `hidden` are never used
[INFO] [stdout]   --> src/cli/command.rs:50:14
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Command {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 50 |     const fn usage(mut self, usage: &'static str) -> Self {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     const fn hidden(mut self) -> Self {
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_command_evaluator` is never used
[INFO] [stdout]    --> src/cli/command.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub fn get_command_evaluator(name: &str) -> Option<Evaluator> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_config` is never used
[INFO] [stdout]    --> src/cli/command.rs:117:4
[INFO] [stdout]     |
[INFO] [stdout] 117 | fn set_config(str: &str) -> () {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Semantics` is never used
[INFO] [stdout]  --> src/language/config.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Semantics {
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Config` is never constructed
[INFO] [stdout]  --> src/language/config.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Config {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `expected`, `found`, and `position` are never read
[INFO] [stdout]   --> src/language/cursor.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     ExpectedChar {
[INFO] [stdout]    |     ------------ fields in this variant
[INFO] [stdout] 50 |         expected: char,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 51 |         found: Option<char>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 52 |         position: usize,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CursorError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `position` is never read
[INFO] [stdout]   --> src/language/cursor.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     UnexpectedEof {
[INFO] [stdout]    |     ------------- field in this variant
[INFO] [stdout] 55 |         position: usize,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CursorError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `UnexpectedChar` is never constructed
[INFO] [stdout]   --> src/language/cursor.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub enum CursorError {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] 45 |     UnexpectedChar {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CursorError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `check_eof` and `pretty_print_input` are never used
[INFO] [stdout]    --> src/language/cursor.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout]  68 | impl<'a> Cursor<'a> {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 118 |     pub fn check_eof(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 191 |     fn pretty_print_input(&self, range: Span) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Program` is never constructed
[INFO] [stdout]   --> src/language/glossary.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Program {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Query` is never constructed
[INFO] [stdout]   --> src/language/glossary.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct Query {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `GroundOps` is never used
[INFO] [stdout]    --> src/language/ground.rs:136:11
[INFO] [stdout]     |
[INFO] [stdout] 136 | pub trait GroundOps<T: ?Sized> {
[INFO] [stdout]     |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `body` is never used
[INFO] [stdout]    --> src/language/ground.rs:160:8
[INFO] [stdout]     |
[INFO] [stdout] 157 | pub trait GroundRuleOps {
[INFO] [stdout]     |           ------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 160 |     fn body(&self) -> &[Literal];
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `into_negative` is never used
[INFO] [stdout]    --> src/language/ground.rs:208:8
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub trait GroundAtomOps {
[INFO] [stdout]     |           ------------- method in this trait
[INFO] [stdout] 207 |     fn into_positive(&self) -> Ground<Literal>;
[INFO] [stdout] 208 |     fn into_negative(&self) -> Ground<Literal>;
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `GroundVecExt` is never used
[INFO] [stdout]    --> src/language/ground.rs:242:11
[INFO] [stdout]     |
[INFO] [stdout] 242 | pub trait GroundVecExt<'a, T> {
[INFO] [stdout]     |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `GroundRule` is never used
[INFO] [stdout]    --> src/language/ground.rs:345:10
[INFO] [stdout]     |
[INFO] [stdout] 345 | pub type GroundRule = Ground<Rule>;
[INFO] [stdout]     |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `GroundLiteral` is never used
[INFO] [stdout]    --> src/language/ground.rs:346:10
[INFO] [stdout]     |
[INFO] [stdout] 346 | pub type GroundLiteral = Ground<Literal>;
[INFO] [stdout]     |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `GroundAtom` is never used
[INFO] [stdout]    --> src/language/ground.rs:347:10
[INFO] [stdout]     |
[INFO] [stdout] 347 | pub type GroundAtom = Ground<Atom>;
[INFO] [stdout]     |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GroundProgram` is never constructed
[INFO] [stdout]    --> src/language/ground.rs:348:12
[INFO] [stdout]     |
[INFO] [stdout] 348 | pub struct GroundProgram {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `err` is never read
[INFO] [stdout]   --> src/language/parse.rs:10:19
[INFO] [stdout]    |
[INFO] [stdout] 10 |     StringError { err: CursorError },
[INFO] [stdout]    |     -----------   ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/language/parse.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 |     InvalidIdentifier(char, Span),
[INFO] [stdout]    |     ----------------- ^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 11 -     InvalidIdentifier(char, Span),
[INFO] [stdout] 11 +     InvalidIdentifier((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/language/parse.rs:12:24
[INFO] [stdout]    |
[INFO] [stdout] 12 |     ExpectedIdentifier(usize),
[INFO] [stdout]    |     ------------------ ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 -     ExpectedIdentifier(usize),
[INFO] [stdout] 12 +     ExpectedIdentifier(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/language/parse.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |     InvalidAtom(Term, Span),
[INFO] [stdout]    |     ----------- ^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 14 -     InvalidAtom(Term, Span),
[INFO] [stdout] 14 +     InvalidAtom((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InvalidCompound` and `UnexpectedNegation` are never constructed
[INFO] [stdout]   --> src/language/parse.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub enum ParseError {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 13 |     InvalidCompound(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     UnexpectedNegation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_error` is never used
[INFO] [stdout]   --> src/language/parse.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<'a> Parser<'a> {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn print_error(&self, err: ParseError) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_program` is never used
[INFO] [stdout]    --> src/language/parse.rs:152:8
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub fn parse_program(input: &str) -> Result<Program> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `HerbrandUniverse` is never used
[INFO] [stdout]   --> src/language/semantics.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub type HerbrandUniverse = HashSet<Term>;
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TruthValue` is never used
[INFO] [stdout]   --> src/language/semantics.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum TruthValue {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Interpretation` is never constructed
[INFO] [stdout]   --> src/language/semantics.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Interpretation {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `truth_value` are never used
[INFO] [stdout]   --> src/language/semantics.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Interpretation {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 28 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn truth_value(&self, atom: &Atom) -> TruthValue {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SemanticError` is never used
[INFO] [stdout]   --> src/language/semantics.rs:47:10
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub enum SemanticError {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]   --> src/language/semantics.rs:51:6
[INFO] [stdout]    |
[INFO] [stdout] 51 | type Result<T> = result::Result<T, SemanticError>;
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `herbrand_universe` is never used
[INFO] [stdout]   --> src/language/semantics.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 84 | impl Program {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 85 |     /// Returns all unique constants of a program
[INFO] [stdout] 86 |     pub fn herbrand_universe(&self, only_facts: bool) -> HerbrandUniverse {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `LiteralSet` is never used
[INFO] [stdout]    --> src/language/semantics.rs:106:6
[INFO] [stdout]     |
[INFO] [stdout] 106 | type LiteralSet = HashSet<GroundLiteral>;
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `herbrand_base`, `immediate_consequence_operator`, `horn_least_fixpoint`, `negative_complement`, `A_P`, and `alternating_fixpoint` are never used
[INFO] [stdout]    --> src/language/semantics.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | impl GroundProgram {
[INFO] [stdout]     | ------------------ methods in this implementation
[INFO] [stdout] 109 |     /// Returns all unique grounded atoms
[INFO] [stdout] 110 |     pub fn herbrand_base(&self) -> HashSet<Ground<&Atom>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     pub fn immediate_consequence_operator(&self, i: &LiteralSet) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     pub fn horn_least_fixpoint(&self, I: &LiteralSet) -> Result<LiteralSet> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 160 |     fn negative_complement(&self, I: &LiteralSet) -> Result<LiteralSet> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 177 |     pub fn A_P(&self, I: &LiteralSet) -> Result<LiteralSet> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 |     pub fn alternating_fixpoint(&self) -> Result<Interpretation> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `semi_naive_ground` is never used
[INFO] [stdout]    --> src/language/semantics.rs:219:8
[INFO] [stdout]     |
[INFO] [stdout] 219 | pub fn semi_naive_ground(rule: &Program) -> Result<GroundProgram> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `naive_ground_rule` is never used
[INFO] [stdout]    --> src/language/semantics.rs:222:8
[INFO] [stdout]     |
[INFO] [stdout] 222 | pub fn naive_ground_rule(rule: &Rule, constants: &HashSet<Term>) -> HashSet<Ground<Rule>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `naive_ground` is never used
[INFO] [stdout]    --> src/language/semantics.rs:257:8
[INFO] [stdout]     |
[INFO] [stdout] 257 | pub fn naive_ground(program: &Program) -> Result<GroundProgram> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/cli/command.rs:129:5
[INFO] [stdout]     |
[INFO] [stdout] 129 | /     rule.inspect(|v| println!("{}", v.clone().either_into::<Rule>()))
[INFO] [stdout] 130 | |         .inspect_err(|e| println!("{}", e));
[INFO] [stdout]     | |___________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 129 |     let _ = rule.inspect(|v| println!("{}", v.clone().either_into::<Rule>()))
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `I` should have a snake case name
[INFO] [stdout]    --> src/language/semantics.rs:125:39
[INFO] [stdout]     |
[INFO] [stdout] 125 |     pub fn horn_least_fixpoint(&self, I: &LiteralSet) -> Result<LiteralSet> {
[INFO] [stdout]     |                                       ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `I` should have a snake case name
[INFO] [stdout]    --> src/language/semantics.rs:160:35
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn negative_complement(&self, I: &LiteralSet) -> Result<LiteralSet> {
[INFO] [stdout]     |                                   ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `H` should have a snake case name
[INFO] [stdout]    --> src/language/semantics.rs:162:13
[INFO] [stdout]     |
[INFO] [stdout] 162 |         let H = self.herbrand_base();
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `S_P` should have a snake case name
[INFO] [stdout]    --> src/language/semantics.rs:164:13
[INFO] [stdout]     |
[INFO] [stdout] 164 |         let S_P = self.horn_least_fixpoint(I)?;
[INFO] [stdout]     |             ^^^ help: convert the identifier to snake case: `s_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `s_P` should have a snake case name
[INFO] [stdout]    --> src/language/semantics.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let s_P = H
[INFO] [stdout]     |             ^^^ help: convert the identifier to snake case: `s_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `A_P` should have a snake case name
[INFO] [stdout]    --> src/language/semantics.rs:177:12
[INFO] [stdout]     |
[INFO] [stdout] 177 |     pub fn A_P(&self, I: &LiteralSet) -> Result<LiteralSet> {
[INFO] [stdout]     |            ^^^ help: convert the identifier to snake case: `a_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `I` should have a snake case name
[INFO] [stdout]    --> src/language/semantics.rs:177:23
[INFO] [stdout]     |
[INFO] [stdout] 177 |     pub fn A_P(&self, I: &LiteralSet) -> Result<LiteralSet> {
[INFO] [stdout]     |                       ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `I` should have a snake case name
[INFO] [stdout]    --> src/language/semantics.rs:190:17
[INFO] [stdout]     |
[INFO] [stdout] 190 |         let mut I = LiteralSet::new(); // Assume nothing is false
[INFO] [stdout]     |                 ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.85s
[INFO] running `Command { std: "docker" "inspect" "6cbd33193ef394498a9004911ee76edd39bef64eaf3046781acab73b09eb684e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cbd33193ef394498a9004911ee76edd39bef64eaf3046781acab73b09eb684e", kill_on_drop: false }`
[INFO] [stdout] 6cbd33193ef394498a9004911ee76edd39bef64eaf3046781acab73b09eb684e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a90e942f60fc076109162b51030dde5a480326c3e83b9a3c28d6b8ea5de87b5
[INFO] running `Command { std: "docker" "start" "-a" "1a90e942f60fc076109162b51030dde5a480326c3e83b9a3c28d6b8ea5de87b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling alternating-fixpoint v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Error` and `Result`
[INFO] [stdout]  --> src/cli/command.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::error::{Error, Result};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/cli/run.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/error.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::fmt`
[INFO] [stdout]  --> src/language/glossary.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::fmt;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/language/glossary.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::language::cursor::CursorError`
[INFO] [stdout]  --> src/language/glossary.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::language::cursor::CursorError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::language::ground::GroundLiteral`
[INFO] [stdout]  --> src/language/glossary.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::language::ground::GroundLiteral;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `glossary::Atom`
[INFO] [stdout]   --> src/language/iter.rs:54:27
[INFO] [stdout]    |
[INFO] [stdout] 54 |     use crate::language::{glossary::Atom, iter::Element, parse::parse_rule};
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Write`
[INFO] [stdout]   --> src/language/pretty.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |         use std::fmt::Write;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `iter`
[INFO] [stdout]  --> src/language/semantics.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     iter, result,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `glossary::*`
[INFO] [stdout]    --> src/language/semantics.rs:281:9
[INFO] [stdout]     |
[INFO] [stdout] 281 |         glossary::*,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str`
[INFO] [stdout]    --> src/cli/command.rs:117:15
[INFO] [stdout]     |
[INFO] [stdout] 117 | fn set_config(str: &str) -> () {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]  --> src/cli/run.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run_line(line: &str) {}
[INFO] [stdout]   |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/language/cursor.rs:119:39
[INFO] [stdout]     |
[INFO] [stdout] 119 |         !self.check_after_whitespace(|c: char| true) // there are still non-whitespace characters left
[INFO] [stdout]     |                                       ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/language/parse.rs:43:39
[INFO] [stdout]    |
[INFO] [stdout] 43 |             ParseError::StringError { err } => todo!(),
[INFO] [stdout]    |                                       ^^^ help: try ignoring the field: `err: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `term`
[INFO] [stdout]   --> src/language/parse.rs:47:37
[INFO] [stdout]    |
[INFO] [stdout] 47 |             ParseError::InvalidAtom(term, _) => todo!(),
[INFO] [stdout]    |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_term`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/language/semantics.rs:118:50
[INFO] [stdout]     |
[INFO] [stdout] 118 |     pub fn immediate_consequence_operator(&self, i: &LiteralSet) {
[INFO] [stdout]     |                                                  ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `loops` is assigned to, but never used
[INFO] [stdout]    --> src/language/semantics.rs:189:13
[INFO] [stdout]     |
[INFO] [stdout] 189 |         let mut loops = 0;
[INFO] [stdout]     |             ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_loops` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `loops` is never read
[INFO] [stdout]    --> src/language/semantics.rs:192:13
[INFO] [stdout]     |
[INFO] [stdout] 192 |             loops += 1;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rule`
[INFO] [stdout]    --> src/language/semantics.rs:219:26
[INFO] [stdout]     |
[INFO] [stdout] 219 | pub fn semi_naive_ground(rule: &Program) -> Result<GroundProgram> {
[INFO] [stdout]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_rule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `results`
[INFO] [stdout]    --> src/language/semantics.rs:289:9
[INFO] [stdout]     |
[INFO] [stdout] 289 |         results: Vec<&'static str>,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_results`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Interpretation` is more private than the item `semantics::<impl ground::GroundProgram>::alternating_fixpoint`
[INFO] [stdout]    --> src/language/semantics.rs:188:5
[INFO] [stdout]     |
[INFO] [stdout] 188 |     pub fn alternating_fixpoint(&self) -> Result<Interpretation> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `semantics::<impl ground::GroundProgram>::alternating_fixpoint` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `Interpretation` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/language/semantics.rs:22:1
[INFO] [stdout]     |
[INFO] [stdout]  22 | struct Interpretation {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `hidden` is never read
[INFO] [stdout]   --> src/cli/command.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Command {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     hidden: bool, // Show command in general help
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Command` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `usage` and `hidden` are never used
[INFO] [stdout]   --> src/cli/command.rs:50:14
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Command {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 50 |     const fn usage(mut self, usage: &'static str) -> Self {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     const fn hidden(mut self) -> Self {
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_command_evaluator` is never used
[INFO] [stdout]    --> src/cli/command.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub fn get_command_evaluator(name: &str) -> Option<Evaluator> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_config` is never used
[INFO] [stdout]    --> src/cli/command.rs:117:4
[INFO] [stdout]     |
[INFO] [stdout] 117 | fn set_config(str: &str) -> () {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Semantics` is never used
[INFO] [stdout]  --> src/language/config.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Semantics {
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Config` is never constructed
[INFO] [stdout]  --> src/language/config.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Config {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `expected`, `found`, and `position` are never read
[INFO] [stdout]   --> src/language/cursor.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     ExpectedChar {
[INFO] [stdout]    |     ------------ fields in this variant
[INFO] [stdout] 50 |         expected: char,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 51 |         found: Option<char>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 52 |         position: usize,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CursorError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `position` is never read
[INFO] [stdout]   --> src/language/cursor.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     UnexpectedEof {
[INFO] [stdout]    |     ------------- field in this variant
[INFO] [stdout] 55 |         position: usize,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CursorError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `UnexpectedChar` is never constructed
[INFO] [stdout]   --> src/language/cursor.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub enum CursorError {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] 45 |     UnexpectedChar {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CursorError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Query` is never constructed
[INFO] [stdout]   --> src/language/glossary.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct Query {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `GroundOps` is never used
[INFO] [stdout]    --> src/language/ground.rs:136:11
[INFO] [stdout]     |
[INFO] [stdout] 136 | pub trait GroundOps<T: ?Sized> {
[INFO] [stdout]     |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `GroundVecExt` is never used
[INFO] [stdout]    --> src/language/ground.rs:242:11
[INFO] [stdout]     |
[INFO] [stdout] 242 | pub trait GroundVecExt<'a, T> {
[INFO] [stdout]     |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `err` is never read
[INFO] [stdout]   --> src/language/parse.rs:10:19
[INFO] [stdout]    |
[INFO] [stdout] 10 |     StringError { err: CursorError },
[INFO] [stdout]    |     -----------   ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/language/parse.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 |     InvalidIdentifier(char, Span),
[INFO] [stdout]    |     ----------------- ^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 11 -     InvalidIdentifier(char, Span),
[INFO] [stdout] 11 +     InvalidIdentifier((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/language/parse.rs:12:24
[INFO] [stdout]    |
[INFO] [stdout] 12 |     ExpectedIdentifier(usize),
[INFO] [stdout]    |     ------------------ ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 -     ExpectedIdentifier(usize),
[INFO] [stdout] 12 +     ExpectedIdentifier(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/language/parse.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |     InvalidAtom(Term, Span),
[INFO] [stdout]    |     ----------- ^^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 14 -     InvalidAtom(Term, Span),
[INFO] [stdout] 14 +     InvalidAtom((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InvalidCompound` and `UnexpectedNegation` are never constructed
[INFO] [stdout]   --> src/language/parse.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub enum ParseError {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 13 |     InvalidCompound(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     UnexpectedNegation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_error` is never used
[INFO] [stdout]   --> src/language/parse.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<'a> Parser<'a> {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn print_error(&self, err: ParseError) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TruthValue` is never used
[INFO] [stdout]   --> src/language/semantics.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum TruthValue {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `truth_value` are never used
[INFO] [stdout]   --> src/language/semantics.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Interpretation {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 28 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn truth_value(&self, atom: &Atom) -> TruthValue {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `UngroundedFact` is never constructed
[INFO] [stdout]   --> src/language/semantics.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub enum SemanticError {
[INFO] [stdout]    |          ------------- variant in this enum
[INFO] [stdout] 48 |     UngroundedFact(Fact),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SemanticError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `immediate_consequence_operator` is never used
[INFO] [stdout]    --> src/language/semantics.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | impl GroundProgram {
[INFO] [stdout]     | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 118 |     pub fn immediate_consequence_operator(&self, i: &LiteralSet) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `semi_naive_ground` is never used
[INFO] [stdout]    --> src/language/semantics.rs:219:8
[INFO] [stdout]     |
[INFO] [stdout] 219 | pub fn semi_naive_ground(rule: &Program) -> Result<GroundProgram> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `alberto_the_piano_playing_seagull` is never used
[INFO] [stdout]    --> src/language/semantics.rs:297:8
[INFO] [stdout]     |
[INFO] [stdout] 297 |     fn alberto_the_piano_playing_seagull() -> (GroundProgram, Vec<&'static str>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/cli/command.rs:129:5
[INFO] [stdout]     |
[INFO] [stdout] 129 | /     rule.inspect(|v| println!("{}", v.clone().either_into::<Rule>()))
[INFO] [stdout] 130 | |         .inspect_err(|e| println!("{}", e));
[INFO] [stdout]     | |___________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 129 |     let _ = rule.inspect(|v| println!("{}", v.clone().either_into::<Rule>()))
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `I` should have a snake case name
[INFO] [stdout]    --> src/language/semantics.rs:125:39
[INFO] [stdout]     |
[INFO] [stdout] 125 |     pub fn horn_least_fixpoint(&self, I: &LiteralSet) -> Result<LiteralSet> {
[INFO] [stdout]     |                                       ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `I` should have a snake case name
[INFO] [stdout]    --> src/language/semantics.rs:160:35
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn negative_complement(&self, I: &LiteralSet) -> Result<LiteralSet> {
[INFO] [stdout]     |                                   ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `H` should have a snake case name
[INFO] [stdout]    --> src/language/semantics.rs:162:13
[INFO] [stdout]     |
[INFO] [stdout] 162 |         let H = self.herbrand_base();
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `S_P` should have a snake case name
[INFO] [stdout]    --> src/language/semantics.rs:164:13
[INFO] [stdout]     |
[INFO] [stdout] 164 |         let S_P = self.horn_least_fixpoint(I)?;
[INFO] [stdout]     |             ^^^ help: convert the identifier to snake case: `s_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `s_P` should have a snake case name
[INFO] [stdout]    --> src/language/semantics.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let s_P = H
[INFO] [stdout]     |             ^^^ help: convert the identifier to snake case: `s_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `A_P` should have a snake case name
[INFO] [stdout]    --> src/language/semantics.rs:177:12
[INFO] [stdout]     |
[INFO] [stdout] 177 |     pub fn A_P(&self, I: &LiteralSet) -> Result<LiteralSet> {
[INFO] [stdout]     |            ^^^ help: convert the identifier to snake case: `a_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `I` should have a snake case name
[INFO] [stdout]    --> src/language/semantics.rs:177:23
[INFO] [stdout]     |
[INFO] [stdout] 177 |     pub fn A_P(&self, I: &LiteralSet) -> Result<LiteralSet> {
[INFO] [stdout]     |                       ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `I` should have a snake case name
[INFO] [stdout]    --> src/language/semantics.rs:190:17
[INFO] [stdout]     |
[INFO] [stdout] 190 |         let mut I = LiteralSet::new(); // Assume nothing is false
[INFO] [stdout]     |                 ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `Command { std: "docker" "inspect" "1a90e942f60fc076109162b51030dde5a480326c3e83b9a3c28d6b8ea5de87b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a90e942f60fc076109162b51030dde5a480326c3e83b9a3c28d6b8ea5de87b5", kill_on_drop: false }`
[INFO] [stdout] 1a90e942f60fc076109162b51030dde5a480326c3e83b9a3c28d6b8ea5de87b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f169cb0edb7c1223a530d712e0e037dfb4e55f8a9908b45c5f7e0e779e8611a6
[INFO] running `Command { std: "docker" "start" "-a" "f169cb0edb7c1223a530d712e0e037dfb4e55f8a9908b45c5f7e0e779e8611a6", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Error` and `Result`
[INFO] [stderr]  --> src/cli/command.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::error::{Error, Result};
[INFO] [stderr]   |                    ^^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/cli/run.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/error.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::fmt`
[INFO] [stderr]  --> src/language/glossary.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::fmt;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/language/glossary.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::language::cursor::CursorError`
[INFO] [stderr]  --> src/language/glossary.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::language::cursor::CursorError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::language::ground::GroundLiteral`
[INFO] [stderr]  --> src/language/glossary.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::language::ground::GroundLiteral;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `glossary::Atom`
[INFO] [stderr]   --> src/language/iter.rs:54:27
[INFO] [stderr]    |
[INFO] [stderr] 54 |     use crate::language::{glossary::Atom, iter::Element, parse::parse_rule};
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Write`
[INFO] [stderr]   --> src/language/pretty.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |         use std::fmt::Write;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `iter`
[INFO] [stderr]  --> src/language/semantics.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     iter, result,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `glossary::*`
[INFO] [stderr]    --> src/language/semantics.rs:281:9
[INFO] [stderr]     |
[INFO] [stderr] 281 |         glossary::*,
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `str`
[INFO] [stderr]    --> src/cli/command.rs:117:15
[INFO] [stderr]     |
[INFO] [stderr] 117 | fn set_config(str: &str) -> () {
[INFO] [stderr]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]  --> src/cli/run.rs:6:17
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn run_line(line: &str) {}
[INFO] [stderr]   |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> src/language/cursor.rs:119:39
[INFO] [stderr]     |
[INFO] [stderr] 119 |         !self.check_after_whitespace(|c: char| true) // there are still non-whitespace characters left
[INFO] [stderr]     |                                       ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/language/parse.rs:43:39
[INFO] [stderr]    |
[INFO] [stderr] 43 |             ParseError::StringError { err } => todo!(),
[INFO] [stderr]    |                                       ^^^ help: try ignoring the field: `err: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `term`
[INFO] [stderr]   --> src/language/parse.rs:47:37
[INFO] [stderr]    |
[INFO] [stderr] 47 |             ParseError::InvalidAtom(term, _) => todo!(),
[INFO] [stderr]    |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_term`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/language/semantics.rs:118:50
[INFO] [stderr]     |
[INFO] [stderr] 118 |     pub fn immediate_consequence_operator(&self, i: &LiteralSet) {
[INFO] [stderr]     |                                                  ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `loops` is assigned to, but never used
[INFO] [stderr]    --> src/language/semantics.rs:189:13
[INFO] [stderr]     |
[INFO] [stderr] 189 |         let mut loops = 0;
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_loops` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `loops` is never read
[INFO] [stderr]    --> src/language/semantics.rs:192:13
[INFO] [stderr]     |
[INFO] [stderr] 192 |             loops += 1;
[INFO] [stderr]     |             ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rule`
[INFO] [stderr]    --> src/language/semantics.rs:219:26
[INFO] [stderr]     |
[INFO] [stderr] 219 | pub fn semi_naive_ground(rule: &Program) -> Result<GroundProgram> {
[INFO] [stderr]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_rule`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `results`
[INFO] [stderr]    --> src/language/semantics.rs:289:9
[INFO] [stderr]     |
[INFO] [stderr] 289 |         results: Vec<&'static str>,
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_results`
[INFO] [stderr] 
[INFO] [stderr] warning: type `Interpretation` is more private than the item `semantics::<impl ground::GroundProgram>::alternating_fixpoint`
[INFO] [stderr]    --> src/language/semantics.rs:188:5
[INFO] [stderr]     |
[INFO] [stderr] 188 |     pub fn alternating_fixpoint(&self) -> Result<Interpretation> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `semantics::<impl ground::GroundProgram>::alternating_fixpoint` is reachable at visibility `pub(crate)`
[INFO] [stderr]     |
[INFO] [stderr] note: but type `Interpretation` is only usable at visibility `pub(self)`
[INFO] [stderr]    --> src/language/semantics.rs:22:1
[INFO] [stderr]     |
[INFO] [stderr]  22 | struct Interpretation {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `hidden` is never read
[INFO] [stderr]   --> src/cli/command.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct Command {
[INFO] [stderr]    |            ------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 24 |     hidden: bool, // Show command in general help
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Command` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `usage` and `hidden` are never used
[INFO] [stderr]   --> src/cli/command.rs:50:14
[INFO] [stderr]    |
[INFO] [stderr] 27 | impl Command {
[INFO] [stderr]    | ------------ methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 50 |     const fn usage(mut self, usage: &'static str) -> Self {
[INFO] [stderr]    |              ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 60 |     const fn hidden(mut self) -> Self {
[INFO] [stderr]    |              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_command_evaluator` is never used
[INFO] [stderr]    --> src/cli/command.rs:110:8
[INFO] [stderr]     |
[INFO] [stderr] 110 | pub fn get_command_evaluator(name: &str) -> Option<Evaluator> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `set_config` is never used
[INFO] [stderr]    --> src/cli/command.rs:117:4
[INFO] [stderr]     |
[INFO] [stderr] 117 | fn set_config(str: &str) -> () {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Semantics` is never used
[INFO] [stderr]  --> src/language/config.rs:2:6
[INFO] [stderr]   |
[INFO] [stderr] 2 | enum Semantics {
[INFO] [stderr]   |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Config` is never constructed
[INFO] [stderr]  --> src/language/config.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | struct Config {
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `expected`, `found`, and `position` are never read
[INFO] [stderr]   --> src/language/cursor.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |     ExpectedChar {
[INFO] [stderr]    |     ------------ fields in this variant
[INFO] [stderr] 50 |         expected: char,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 51 |         found: Option<char>,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 52 |         position: usize,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `CursorError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `position` is never read
[INFO] [stderr]   --> src/language/cursor.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |     UnexpectedEof {
[INFO] [stderr]    |     ------------- field in this variant
[INFO] [stderr] 55 |         position: usize,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `CursorError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variant `UnexpectedChar` is never constructed
[INFO] [stderr]   --> src/language/cursor.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub enum CursorError {
[INFO] [stderr]    |          ----------- variant in this enum
[INFO] [stderr] 45 |     UnexpectedChar {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `CursorError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Query` is never constructed
[INFO] [stderr]   --> src/language/glossary.rs:67:12
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub struct Query {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `GroundOps` is never used
[INFO] [stderr]    --> src/language/ground.rs:136:11
[INFO] [stderr]     |
[INFO] [stderr] 136 | pub trait GroundOps<T: ?Sized> {
[INFO] [stderr]     |           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `GroundVecExt` is never used
[INFO] [stderr]    --> src/language/ground.rs:242:11
[INFO] [stderr]     |
[INFO] [stderr] 242 | pub trait GroundVecExt<'a, T> {
[INFO] [stderr]     |           ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `err` is never read
[INFO] [stderr]   --> src/language/parse.rs:10:19
[INFO] [stderr]    |
[INFO] [stderr] 10 |     StringError { err: CursorError },
[INFO] [stderr]    |     -----------   ^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0` and `1` are never read
[INFO] [stderr]   --> src/language/parse.rs:11:23
[INFO] [stderr]    |
[INFO] [stderr] 11 |     InvalidIdentifier(char, Span),
[INFO] [stderr]    |     ----------------- ^^^^  ^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     fields in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]    |
[INFO] [stderr] 11 -     InvalidIdentifier(char, Span),
[INFO] [stderr] 11 +     InvalidIdentifier((), ()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/language/parse.rs:12:24
[INFO] [stderr]    |
[INFO] [stderr] 12 |     ExpectedIdentifier(usize),
[INFO] [stderr]    |     ------------------ ^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 12 -     ExpectedIdentifier(usize),
[INFO] [stderr] 12 +     ExpectedIdentifier(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0` and `1` are never read
[INFO] [stderr]   --> src/language/parse.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 |     InvalidAtom(Term, Span),
[INFO] [stderr]    |     ----------- ^^^^  ^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     fields in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]    |
[INFO] [stderr] 14 -     InvalidAtom(Term, Span),
[INFO] [stderr] 14 +     InvalidAtom((), ()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: variants `InvalidCompound` and `UnexpectedNegation` are never constructed
[INFO] [stderr]   --> src/language/parse.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr]  9 | pub enum ParseError {
[INFO] [stderr]    |          ---------- variants in this enum
[INFO] [stderr] ...
[INFO] [stderr] 13 |     InvalidCompound(usize),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 16 |     UnexpectedNegation,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `print_error` is never used
[INFO] [stderr]   --> src/language/parse.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 34 | impl<'a> Parser<'a> {
[INFO] [stderr]    | ------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 41 |     fn print_error(&self, err: ParseError) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `TruthValue` is never used
[INFO] [stderr]   --> src/language/semantics.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub enum TruthValue {
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `truth_value` are never used
[INFO] [stderr]   --> src/language/semantics.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 27 | impl Interpretation {
[INFO] [stderr]    | ------------------- associated items in this implementation
[INFO] [stderr] 28 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 35 |     pub fn truth_value(&self, atom: &Atom) -> TruthValue {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `UngroundedFact` is never constructed
[INFO] [stderr]   --> src/language/semantics.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub enum SemanticError {
[INFO] [stderr]    |          ------------- variant in this enum
[INFO] [stderr] 48 |     UngroundedFact(Fact),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `SemanticError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `immediate_consequence_operator` is never used
[INFO] [stderr]    --> src/language/semantics.rs:118:12
[INFO] [stderr]     |
[INFO] [stderr] 108 | impl GroundProgram {
[INFO] [stderr]     | ------------------ method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 118 |     pub fn immediate_consequence_operator(&self, i: &LiteralSet) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `semi_naive_ground` is never used
[INFO] [stderr]    --> src/language/semantics.rs:219:8
[INFO] [stderr]     |
[INFO] [stderr] 219 | pub fn semi_naive_ground(rule: &Program) -> Result<GroundProgram> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `alberto_the_piano_playing_seagull` is never used
[INFO] [stderr]    --> src/language/semantics.rs:297:8
[INFO] [stderr]     |
[INFO] [stderr] 297 |     fn alberto_the_piano_playing_seagull() -> (GroundProgram, Vec<&'static str>) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/cli/command.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 | /     rule.inspect(|v| println!("{}", v.clone().either_into::<Rule>()))
[INFO] [stderr] 130 | |         .inspect_err(|e| println!("{}", e));
[INFO] [stderr]     | |___________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 129 |     let _ = rule.inspect(|v| println!("{}", v.clone().either_into::<Rule>()))
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: variable `I` should have a snake case name
[INFO] [stderr]    --> src/language/semantics.rs:125:39
[INFO] [stderr]     |
[INFO] [stderr] 125 |     pub fn horn_least_fixpoint(&self, I: &LiteralSet) -> Result<LiteralSet> {
[INFO] [stderr]     |                                       ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `I` should have a snake case name
[INFO] [stderr]    --> src/language/semantics.rs:160:35
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn negative_complement(&self, I: &LiteralSet) -> Result<LiteralSet> {
[INFO] [stderr]     |                                   ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `H` should have a snake case name
[INFO] [stderr]    --> src/language/semantics.rs:162:13
[INFO] [stderr]     |
[INFO] [stderr] 162 |         let H = self.herbrand_base();
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `h`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `S_P` should have a snake case name
[INFO] [stderr]    --> src/language/semantics.rs:164:13
[INFO] [stderr]     |
[INFO] [stderr] 164 |         let S_P = self.horn_least_fixpoint(I)?;
[INFO] [stderr]     |             ^^^ help: convert the identifier to snake case: `s_p`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `s_P` should have a snake case name
[INFO] [stderr]    --> src/language/semantics.rs:167:13
[INFO] [stderr]     |
[INFO] [stderr] 167 |         let s_P = H
[INFO] [stderr]     |             ^^^ help: convert the identifier to snake case: `s_p`
[INFO] [stderr] 
[INFO] [stderr] warning: method `A_P` should have a snake case name
[INFO] [stderr]    --> src/language/semantics.rs:177:12
[INFO] [stderr]     |
[INFO] [stderr] 177 |     pub fn A_P(&self, I: &LiteralSet) -> Result<LiteralSet> {
[INFO] [stderr]     |            ^^^ help: convert the identifier to snake case: `a_p`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `I` should have a snake case name
[INFO] [stderr]    --> src/language/semantics.rs:177:23
[INFO] [stderr]     |
[INFO] [stderr] 177 |     pub fn A_P(&self, I: &LiteralSet) -> Result<LiteralSet> {
[INFO] [stderr]     |                       ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `I` should have a snake case name
[INFO] [stderr]    --> src/language/semantics.rs:190:17
[INFO] [stderr]     |
[INFO] [stderr] 190 |         let mut I = LiteralSet::new(); // Assume nothing is false
[INFO] [stderr]     |                 ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stderr] 
[INFO] [stderr] warning: `alternating-fixpoint` (bin "alternating-fixpoint" test) generated 55 warnings (run `cargo fix --bin "alternating-fixpoint" -p alternating-fixpoint --tests` to apply 19 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/alternating_fixpoint-da27c312c8032141)
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test language::cursor::tests::test_print_input ... ok
[INFO] [stdout] test language::cursor::tests::test_string_testing ... ok
[INFO] [stdout] test language::cursor::tests::test_string_consumption ... ok
[INFO] [stdout] test error::tests::test_error_conversions ... ok
[INFO] [stdout] test language::glossary::tests::test_fact_construction ... ok
[INFO] [stdout] test language::glossary::tests::test_rule_construction ... ok
[INFO] [stdout] test language::iter::tests::test_term_iteration ... ok
[INFO] [stdout] test language::parse::tests::test_parse_atoms ... ok
[INFO] [stdout] test language::parse::tests::test_parse_fact ... ok
[INFO] [stdout] test language::parse::tests::test_parse_identifiers ... ok
[INFO] [stdout] test language::parse::tests::test_parse_literals ... ok
[INFO] [stdout] test language::parse::tests::test_parse_program ... ok
[INFO] [stdout] test language::pretty::tests::test_rule_pretty_print ... ok
[INFO] [stdout] test language::semantics::tests::test_rule_grounding ... ok
[INFO] [stdout] test language::semantics::tests::test_horn ... ok
[INFO] [stdout] test language::parse::tests::test_parse_program_line ... ok
[INFO] [stdout] test language::parse::tests::test_parse_term ... ok
[INFO] [stdout] test language::pretty::tests::test_rule_display ... ok
[INFO] [stdout] test language::semantics::tests::test_alternating_fixpoint ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- language::semantics::tests::test_alternating_fixpoint stdout ----
[INFO] [stdout] i: 
[INFO] [stdout] 
[INFO] [stdout] I in lf_P(): 
[INFO] [stdout] assumptions in lf_P(): penguin(tux), eagle(eddy)
[INFO] [stdout] S_P: bird(eddy), penguin(tux), bird(tux), fly(tux), fly(eddy), -fly(tux), eagle(eddy)
[INFO] [stdout] H: fly(tux), eagle(eddy), bird(eddy), fly(eddy), eagle(tux), penguin(tux), bird(tux), penguin(eddy), -fly(tux), -fly(eddy)
[INFO] [stdout] tmp: not penguin(eddy), not -fly(eddy), not eagle(tux)
[INFO] [stdout] 
[INFO] [stdout] I in lf_P(): not penguin(eddy), not -fly(eddy), not eagle(tux)
[INFO] [stdout] assumptions in lf_P(): -fly(eddy), penguin(tux), penguin(eddy), eagle(tux), eagle(eddy)
[INFO] [stdout] S_P: -fly(eddy), bird(tux), penguin(eddy), bird(eddy), fly(eddy), fly(tux), penguin(tux), eagle(tux), eagle(eddy), -fly(tux)
[INFO] [stdout] H: -fly(tux), -fly(eddy), eagle(tux), fly(tux), bird(eddy), fly(eddy), bird(tux), penguin(tux), eagle(eddy), penguin(eddy)
[INFO] [stdout] tmp2 
[INFO] [stdout] 
[INFO] [stdout] I in lf_P(): 
[INFO] [stdout] assumptions in lf_P(): eagle(eddy), penguin(tux)
[INFO] [stdout] I: 
[INFO] [stdout] positives: { -fly(tux), fly(eddy), bird(tux), bird(eddy), penguin(tux), eagle(eddy), fly(tux) }
[INFO] [stdout] negatives: {  }
[INFO] [stdout] 
[INFO] [stdout] thread 'language::semantics::tests::test_alternating_fixpoint' (32) panicked at src/language/semantics.rs:427:9:
[INFO] [stdout] assertion failed: true_interpretation_matches
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5d35860cd212 - std[3f03f8b59f91bef1]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5d35860cd212 - std[3f03f8b59f91bef1]::backtrace_rs::backtrace::trace_unsynchronized::<std[3f03f8b59f91bef1]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5d35860cd212 - std[3f03f8b59f91bef1]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5d35860cd212 - <<std[3f03f8b59f91bef1]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[585f66e14d78f9ba]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5d35860e1c8a - <core[585f66e14d78f9ba]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5d35860e1c8a - core[585f66e14d78f9ba]::fmt::write
[INFO] [stdout]    6:     0x5d35860d20c6 - std[3f03f8b59f91bef1]::io::default_write_fmt::<alloc[15e7b27aba85d2e2]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5d35860d20c6 - <alloc[15e7b27aba85d2e2]::vec::Vec<u8> as std[3f03f8b59f91bef1]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5d35860ab9af - <std[3f03f8b59f91bef1]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5d35860ab9af - std[3f03f8b59f91bef1]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5d35860c5549 - std[3f03f8b59f91bef1]::panicking::default_hook
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5d35860566fe - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn for<'a, 'b> core[585f66e14d78f9ba]::ops::function::Fn<(&'a std[3f03f8b59f91bef1]::panic::PanicHookInfo<'b>,), Output = ()> + core[585f66e14d78f9ba]::marker::Sync + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::Fn<(&std[3f03f8b59f91bef1]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x5d35860566fe - test[30224e0cb089acd2]::test_main_with_exit_callback::<test[30224e0cb089acd2]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5d35860c5702 - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn for<'a, 'b> core[585f66e14d78f9ba]::ops::function::Fn<(&'a std[3f03f8b59f91bef1]::panic::PanicHookInfo<'b>,), Output = ()> + core[585f66e14d78f9ba]::marker::Sync + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::Fn<(&std[3f03f8b59f91bef1]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x5d35860c5702 - std[3f03f8b59f91bef1]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5d35860aba9a - std[3f03f8b59f91bef1]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:691:13
[INFO] [stdout]   16:     0x5d35860a0c29 - std[3f03f8b59f91bef1]::sys::backtrace::__rust_end_short_backtrace::<std[3f03f8b59f91bef1]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5d35860ac8bd - __rustc[caa99d26c7bae192]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5d35860e235c - core[585f66e14d78f9ba]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5d35860e2322 - core[585f66e14d78f9ba]::panicking::panic
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panicking.rs:150:5
[INFO] [stdout]   20:     0x5d3586037df7 - alternating_fixpoint[57493cffbfa0f96d]::language::semantics::tests::test_alternating_fixpoint
[INFO] [stdout]                                at /opt/rustwide/workdir/src/language/semantics.rs:427:9
[INFO] [stdout]   21:     0x5d3586031d47 - alternating_fixpoint[57493cffbfa0f96d]::language::semantics::tests::test_alternating_fixpoint::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/language/semantics.rs:409:35
[INFO] [stdout]   22:     0x5d35860312a6 - <alternating_fixpoint[57493cffbfa0f96d]::language::semantics::tests::test_alternating_fixpoint::{closure#0} as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5d358604aaab - <fn() -> core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5d358604aaab - test[30224e0cb089acd2]::__rust_begin_short_backtrace::<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>, fn() -> core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:663:18
[INFO] [stdout]   25:     0x5d358605730a - test[30224e0cb089acd2]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:686:74
[INFO] [stdout]   26:     0x5d358605730a - <core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   27:     0x5d358605730a - std[3f03f8b59f91bef1]::panicking::catch_unwind::do_call::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>, core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:581:40
[INFO] [stdout]   28:     0x5d358605730a - std[3f03f8b59f91bef1]::panicking::catch_unwind::<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>, core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:544:19
[INFO] [stdout]   29:     0x5d358605730a - std[3f03f8b59f91bef1]::panic::catch_unwind::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>, core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x5d358605730a - test[30224e0cb089acd2]::run_test_in_process
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:686:27
[INFO] [stdout]   31:     0x5d358605730a - test[30224e0cb089acd2]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:607:43
[INFO] [stdout]   32:     0x5d35860517d4 - test[30224e0cb089acd2]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:637:41
[INFO] [stdout]   33:     0x5d35860517d4 - std[3f03f8b59f91bef1]::sys::backtrace::__rust_begin_short_backtrace::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   34:     0x5d3586059e02 - std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   35:     0x5d3586059e02 - <core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   36:     0x5d3586059e02 - std[3f03f8b59f91bef1]::panicking::catch_unwind::do_call::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:581:40
[INFO] [stdout]   37:     0x5d3586059e02 - std[3f03f8b59f91bef1]::panicking::catch_unwind::<(), core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:544:19
[INFO] [stdout]   38:     0x5d3586059e02 - std[3f03f8b59f91bef1]::panic::catch_unwind::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x5d3586059e02 - std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   40:     0x5d3586059e02 - <std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1} as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x5d35860ccabf - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn core[585f66e14d78f9ba]::ops::function::FnOnce<(), Output = ()> + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   42:     0x5d35860ccabf - <std[3f03f8b59f91bef1]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   43:     0x77aac3a12aa4 - <unknown>
[INFO] [stdout]   44:     0x77aac3a9fa64 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     language::semantics::tests::test_alternating_fixpoint
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 18 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin alternating-fixpoint`
[INFO] running `Command { std: "docker" "inspect" "f169cb0edb7c1223a530d712e0e037dfb4e55f8a9908b45c5f7e0e779e8611a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f169cb0edb7c1223a530d712e0e037dfb4e55f8a9908b45c5f7e0e779e8611a6", kill_on_drop: false }`
[INFO] [stdout] f169cb0edb7c1223a530d712e0e037dfb4e55f8a9908b45c5f7e0e779e8611a6
