[INFO] cloning repository https://github.com/wormtql/rusty-parser [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wormtql/rusty-parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwormtql%2Frusty-parser", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwormtql%2Frusty-parser'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6b89732ee14c9ee5ed1f9eead2e8d7838cd850d0 [INFO] testing wormtql/rusty-parser against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwormtql%2Frusty-parser" "/workspace/builds/worker-85/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-85/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wormtql/rusty-parser on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wormtql/rusty-parser [INFO] finished tweaking git repo https://github.com/wormtql/rusty-parser [INFO] tweaked toml for git repo https://github.com/wormtql/rusty-parser written to /workspace/builds/worker-85/source/Cargo.toml [INFO] crate git repo https://github.com/wormtql/rusty-parser already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0daf9af280026519c2013e717e952efbd56e676a99cb45bce2cb9da4c6693904 [INFO] running `Command { std: "docker" "start" "-a" "0daf9af280026519c2013e717e952efbd56e676a99cb45bce2cb9da4c6693904", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0daf9af280026519c2013e717e952efbd56e676a99cb45bce2cb9da4c6693904", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0daf9af280026519c2013e717e952efbd56e676a99cb45bce2cb9da4c6693904", kill_on_drop: false }` [INFO] [stdout] 0daf9af280026519c2013e717e952efbd56e676a99cb45bce2cb9da4c6693904 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1ec34b3fb8ecff819dd645accd9bdf8143968e9ec8cc35f0921d75e45496bef7 [INFO] running `Command { std: "docker" "start" "-a" "1ec34b3fb8ecff819dd645accd9bdf8143968e9ec8cc35f0921d75e45496bef7", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling ryu v1.0.3 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling itoa v0.4.5 [INFO] [stderr] Compiling ppv-lite86 v0.2.8 [INFO] [stderr] Compiling encode_unicode v0.3.6 [INFO] [stderr] Compiling dirs v1.0.5 [INFO] [stderr] Compiling regex-automata v0.1.9 [INFO] [stderr] Compiling term v0.5.2 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling csv-core v0.1.10 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Compiling bstr v0.2.12 [INFO] [stderr] Compiling serde_json v1.0.51 [INFO] [stderr] Compiling csv v1.1.3 [INFO] [stderr] Compiling prettytable-rs v0.8.0 [INFO] [stderr] Compiling grammar v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Token` [INFO] [stdout] --> src/ll_table/mod.rs:3:33 [INFO] [stdout] | [INFO] [stdout] 3 | use crate::token::{TokenStream, Token}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `NonLeafNode` [INFO] [stdout] --> src/ll_table/mod.rs:4:36 [INFO] [stdout] | [INFO] [stdout] 4 | use crate::parse_tree::{ParseTree, NonLeafNode}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Token` [INFO] [stdout] --> src/lr_table/mod.rs:3:33 [INFO] [stdout] | [INFO] [stdout] 3 | use crate::token::{TokenStream, Token}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Token` [INFO] [stdout] --> src/lr_table/lalr_table.rs:2:33 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::token::{TokenStream, Token}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::VecDeque` [INFO] [stdout] --> src/lr0/lr0_item_set_family.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::collections::VecDeque; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::thread_rng` [INFO] [stdout] --> src/lr0/lr0_item_set_family.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use rand::thread_rng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `VecDeque` [INFO] [stdout] --> src/lr1/lr1_item_set_family.rs:7:33 [INFO] [stdout] | [INFO] [stdout] 7 | use std::collections::{HashMap, VecDeque}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::thread_rng` [INFO] [stdout] --> src/lr1/lr1_item_set_family.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use rand::thread_rng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self::lr1_item_set::LR1ItemSet` [INFO] [stdout] --> src/lr1/mod.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use self::lr1_item_set::LR1ItemSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::grammar::letter::Letter` [INFO] [stdout] --> src/parse_tree/mod.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::grammar::letter::Letter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ActionTableItem`, `LRTable` [INFO] [stdout] --> src/parse_tree/mod.rs:5:23 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::lr_table::{LRTable, ActionTableItem}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `TokenStream` [INFO] [stdout] --> src/parse_tree/mod.rs:6:20 [INFO] [stdout] | [INFO] [stdout] 6 | use crate::token::{TokenStream, Token}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::utils` [INFO] [stdout] --> src/automaton/dfa.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::utils; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/automaton/dfa.rs:124:9 [INFO] [stdout] | [INFO] [stdout] 124 | 'bigloop: loop { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_labels)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/automaton/dfa.rs:130:13 [INFO] [stdout] | [INFO] [stdout] 130 | 'everysplit: for p in split.iter() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/automaton/dfa.rs:131:17 [INFO] [stdout] | [INFO] [stdout] 131 | 'everyletter: for letter in self.letters.iter() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::utils` [INFO] [stdout] --> src/optimization/du.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use crate::utils; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tree_stack` [INFO] [stdout] --> src/ll_table/mod.rs:80:17 [INFO] [stdout] | [INFO] [stdout] 80 | let mut tree_stack: Vec = Vec::new(); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tree_stack` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/lr1/mod.rs:17:10 [INFO] [stdout] | [INFO] [stdout] 17 | for (i, item_set) in data.item_sets.iter().enumerate() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/optimization/dominant.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | for i in 0..lines.len() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `uses` [INFO] [stdout] --> src/optimization/ud.rs:56:27 [INFO] [stdout] | [INFO] [stdout] 56 | for (point, left, uses) in block.iter() { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_uses` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/grammar/letter.rs:47:13 [INFO] [stdout] | [INFO] [stdout] 47 | let mut temp = match self { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ll_table/mod.rs:80:13 [INFO] [stdout] | [INFO] [stdout] 80 | let mut tree_stack: Vec = Vec::new(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lr_table/lalr_table.rs:95:13 [INFO] [stdout] | [INFO] [stdout] 95 | let mut letter_stream: Vec = token_stream.stream.iter().map( [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lr_table/mod.rs:172:13 [INFO] [stdout] | [INFO] [stdout] 172 | let mut letter_stream: Vec = token_stream.stream.iter().map( [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lr_table/mod.rs:292:13 [INFO] [stdout] | [INFO] [stdout] 292 | let mut letter_stream: Vec = token_stream.stream.iter().map( [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lr0/lr0_item_set_family.rs:115:17 [INFO] [stdout] | [INFO] [stdout] 115 | let mut shuffle = &mut signs[..]; [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lr1/lr1_item_set_family.rs:109:17 [INFO] [stdout] | [INFO] [stdout] 109 | let mut shuffle = &mut signs[..]; [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/parse_tree/mod.rs:75:17 [INFO] [stdout] | [INFO] [stdout] 75 | state.serialize_field("children", &n.children); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 29 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `grammar::first_follow_set::FirstFollowSet` [INFO] [stdout] --> src/bin/parser.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use grammar::first_follow_set::FirstFollowSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `grammar::lr_table::LRTable` [INFO] [stdout] --> src/bin/exam.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use grammar::lr_table::LRTable; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `grammar::lr0::lr0_item_set_family::LR0ItemSetFamily` [INFO] [stdout] --> src/bin/parser.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use grammar::lr0::lr0_item_set_family::LR0ItemSetFamily; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `grammar::parse_tree::ParseTree` [INFO] [stdout] --> src/bin/exam.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use grammar::parse_tree::ParseTree; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `grammar::lr1::lr1_item_set_family::LR1ItemSetFamily` [INFO] [stdout] --> src/bin/parser.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use grammar::lr1::lr1_item_set_family::LR1ItemSetFamily; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> src/bin/exam.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `lalr1`, `ll1` [INFO] [stdout] --> src/bin/parser.rs:11:26 [INFO] [stdout] | [INFO] [stdout] 11 | use grammar::{lr0, slr1, ll1, lr1, lalr1}; [INFO] [stdout] | ^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `grammar::parse_tree::ParseTree` [INFO] [stdout] --> src/bin/parser.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use grammar::parse_tree::ParseTree; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/bin/exam.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/parser.rs:173:17 [INFO] [stdout] | [INFO] [stdout] 173 | let mut grammar = Grammar::from_advanced_file(&f).unwrap(); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/parser.rs:120:9 [INFO] [stdout] | [INFO] [stdout] 120 | file.write_all(serialized.as_bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::prelude` [INFO] [stdout] --> src/bin/exam.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 27 | use std::io::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/parser.rs:193:9 [INFO] [stdout] | [INFO] [stdout] 193 | outf.write_all(json.as_bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `parse_tree` [INFO] [stdout] --> src/bin/exam.rs:360:14 [INFO] [stdout] | [INFO] [stdout] 360 | let (parse_tree, table) = ll_table.analysis_with_process(&token_stream, g.origin.clone()); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parse_tree` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/exam.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | io::stdin().read_line(&mut input); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 16s [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "1ec34b3fb8ecff819dd645accd9bdf8143968e9ec8cc35f0921d75e45496bef7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ec34b3fb8ecff819dd645accd9bdf8143968e9ec8cc35f0921d75e45496bef7", kill_on_drop: false }` [INFO] [stdout] 1ec34b3fb8ecff819dd645accd9bdf8143968e9ec8cc35f0921d75e45496bef7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 987b87be1b486c1ba78f2c720dab81be6111d6d2b653eef85fea843ba52d80f0 [INFO] running `Command { std: "docker" "start" "-a" "987b87be1b486c1ba78f2c720dab81be6111d6d2b653eef85fea843ba52d80f0", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stdout] warning: unused import: `Token` [INFO] [stdout] --> src/ll_table/mod.rs:3:33 [INFO] [stdout] | [INFO] [stdout] 3 | use crate::token::{TokenStream, Token}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `NonLeafNode` [INFO] [stdout] --> src/ll_table/mod.rs:4:36 [INFO] [stdout] | [INFO] [stdout] 4 | use crate::parse_tree::{ParseTree, NonLeafNode}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling grammar v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Token` [INFO] [stdout] --> src/lr_table/mod.rs:3:33 [INFO] [stdout] | [INFO] [stdout] 3 | use crate::token::{TokenStream, Token}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Token` [INFO] [stdout] --> src/lr_table/lalr_table.rs:2:33 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::token::{TokenStream, Token}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::VecDeque` [INFO] [stdout] --> src/lr0/lr0_item_set_family.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::collections::VecDeque; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::thread_rng` [INFO] [stdout] --> src/lr0/lr0_item_set_family.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use rand::thread_rng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `VecDeque` [INFO] [stdout] --> src/lr1/lr1_item_set_family.rs:7:33 [INFO] [stdout] | [INFO] [stdout] 7 | use std::collections::{HashMap, VecDeque}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::thread_rng` [INFO] [stdout] --> src/lr1/lr1_item_set_family.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use rand::thread_rng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self::lr1_item_set::LR1ItemSet` [INFO] [stdout] --> src/lr1/mod.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use self::lr1_item_set::LR1ItemSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::grammar::letter::Letter` [INFO] [stdout] --> src/parse_tree/mod.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::grammar::letter::Letter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ActionTableItem`, `LRTable` [INFO] [stdout] --> src/parse_tree/mod.rs:5:23 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::lr_table::{LRTable, ActionTableItem}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `TokenStream` [INFO] [stdout] --> src/parse_tree/mod.rs:6:20 [INFO] [stdout] | [INFO] [stdout] 6 | use crate::token::{TokenStream, Token}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::utils` [INFO] [stdout] --> src/automaton/dfa.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::utils; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/automaton/dfa.rs:124:9 [INFO] [stdout] | [INFO] [stdout] 124 | 'bigloop: loop { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_labels)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/automaton/dfa.rs:130:13 [INFO] [stdout] | [INFO] [stdout] 130 | 'everysplit: for p in split.iter() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/automaton/dfa.rs:131:17 [INFO] [stdout] | [INFO] [stdout] 131 | 'everyletter: for letter in self.letters.iter() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::utils` [INFO] [stdout] --> src/optimization/du.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use crate::utils; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tree_stack` [INFO] [stdout] --> src/ll_table/mod.rs:80:17 [INFO] [stdout] | [INFO] [stdout] 80 | let mut tree_stack: Vec = Vec::new(); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tree_stack` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/lr1/mod.rs:17:10 [INFO] [stdout] | [INFO] [stdout] 17 | for (i, item_set) in data.item_sets.iter().enumerate() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/optimization/dominant.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | for i in 0..lines.len() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `uses` [INFO] [stdout] --> src/optimization/ud.rs:56:27 [INFO] [stdout] | [INFO] [stdout] 56 | for (point, left, uses) in block.iter() { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_uses` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/grammar/letter.rs:47:13 [INFO] [stdout] | [INFO] [stdout] 47 | let mut temp = match self { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ll_table/mod.rs:80:13 [INFO] [stdout] | [INFO] [stdout] 80 | let mut tree_stack: Vec = Vec::new(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lr_table/lalr_table.rs:95:13 [INFO] [stdout] | [INFO] [stdout] 95 | let mut letter_stream: Vec = token_stream.stream.iter().map( [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lr_table/mod.rs:172:13 [INFO] [stdout] | [INFO] [stdout] 172 | let mut letter_stream: Vec = token_stream.stream.iter().map( [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lr_table/mod.rs:292:13 [INFO] [stdout] | [INFO] [stdout] 292 | let mut letter_stream: Vec = token_stream.stream.iter().map( [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lr0/lr0_item_set_family.rs:115:17 [INFO] [stdout] | [INFO] [stdout] 115 | let mut shuffle = &mut signs[..]; [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lr1/lr1_item_set_family.rs:109:17 [INFO] [stdout] | [INFO] [stdout] 109 | let mut shuffle = &mut signs[..]; [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/parse_tree/mod.rs:75:17 [INFO] [stdout] | [INFO] [stdout] 75 | state.serialize_field("children", &n.children); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 29 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `grammar::lr_table::LRTable` [INFO] [stdout] --> src/bin/exam.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use grammar::lr_table::LRTable; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `grammar::parse_tree::ParseTree` [INFO] [stdout] --> src/bin/exam.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use grammar::parse_tree::ParseTree; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> src/bin/exam.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/bin/exam.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `grammar::first_follow_set::FirstFollowSet` [INFO] [stdout] --> src/bin/parser.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use grammar::first_follow_set::FirstFollowSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `grammar::lr0::lr0_item_set_family::LR0ItemSetFamily` [INFO] [stdout] --> src/bin/parser.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use grammar::lr0::lr0_item_set_family::LR0ItemSetFamily; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `grammar::lr1::lr1_item_set_family::LR1ItemSetFamily` [INFO] [stdout] --> src/bin/parser.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use grammar::lr1::lr1_item_set_family::LR1ItemSetFamily; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `lalr1`, `ll1` [INFO] [stdout] --> src/bin/parser.rs:11:26 [INFO] [stdout] | [INFO] [stdout] 11 | use grammar::{lr0, slr1, ll1, lr1, lalr1}; [INFO] [stdout] | ^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `grammar::parse_tree::ParseTree` [INFO] [stdout] --> src/bin/parser.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use grammar::parse_tree::ParseTree; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/parser.rs:173:17 [INFO] [stdout] | [INFO] [stdout] 173 | let mut grammar = Grammar::from_advanced_file(&f).unwrap(); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::prelude` [INFO] [stdout] --> src/bin/exam.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 27 | use std::io::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/parser.rs:120:9 [INFO] [stdout] | [INFO] [stdout] 120 | file.write_all(serialized.as_bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/parser.rs:193:9 [INFO] [stdout] | [INFO] [stdout] 193 | outf.write_all(json.as_bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `parse_tree` [INFO] [stdout] --> src/bin/exam.rs:360:14 [INFO] [stdout] | [INFO] [stdout] 360 | let (parse_tree, table) = ll_table.analysis_with_process(&token_stream, g.origin.clone()); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parse_tree` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/exam.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | io::stdin().read_line(&mut input); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Token` [INFO] [stdout] --> src/ll_table/mod.rs:3:33 [INFO] [stdout] | [INFO] [stdout] 3 | use crate::token::{TokenStream, Token}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `NonLeafNode` [INFO] [stdout] --> src/ll_table/mod.rs:4:36 [INFO] [stdout] | [INFO] [stdout] 4 | use crate::parse_tree::{ParseTree, NonLeafNode}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Token` [INFO] [stdout] --> src/lr_table/mod.rs:3:33 [INFO] [stdout] | [INFO] [stdout] 3 | use crate::token::{TokenStream, Token}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Token` [INFO] [stdout] --> src/lr_table/lalr_table.rs:2:33 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::token::{TokenStream, Token}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::VecDeque` [INFO] [stdout] --> src/lr0/lr0_item_set_family.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::collections::VecDeque; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::thread_rng` [INFO] [stdout] --> src/lr0/lr0_item_set_family.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use rand::thread_rng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `VecDeque` [INFO] [stdout] --> src/lr1/lr1_item_set_family.rs:7:33 [INFO] [stdout] | [INFO] [stdout] 7 | use std::collections::{HashMap, VecDeque}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::thread_rng` [INFO] [stdout] --> src/lr1/lr1_item_set_family.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use rand::thread_rng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self::lr1_item_set::LR1ItemSet` [INFO] [stdout] --> src/lr1/mod.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use self::lr1_item_set::LR1ItemSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::grammar::letter::Letter` [INFO] [stdout] --> src/parse_tree/mod.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::grammar::letter::Letter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ActionTableItem`, `LRTable` [INFO] [stdout] --> src/parse_tree/mod.rs:5:23 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::lr_table::{LRTable, ActionTableItem}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `TokenStream` [INFO] [stdout] --> src/parse_tree/mod.rs:6:20 [INFO] [stdout] | [INFO] [stdout] 6 | use crate::token::{TokenStream, Token}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::utils` [INFO] [stdout] --> src/automaton/dfa.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::utils; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/automaton/dfa.rs:124:9 [INFO] [stdout] | [INFO] [stdout] 124 | 'bigloop: loop { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_labels)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/automaton/dfa.rs:130:13 [INFO] [stdout] | [INFO] [stdout] 130 | 'everysplit: for p in split.iter() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/automaton/dfa.rs:131:17 [INFO] [stdout] | [INFO] [stdout] 131 | 'everyletter: for letter in self.letters.iter() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::utils` [INFO] [stdout] --> src/optimization/du.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use crate::utils; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tree_stack` [INFO] [stdout] --> src/ll_table/mod.rs:80:17 [INFO] [stdout] | [INFO] [stdout] 80 | let mut tree_stack: Vec = Vec::new(); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tree_stack` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/lr1/mod.rs:17:10 [INFO] [stdout] | [INFO] [stdout] 17 | for (i, item_set) in data.item_sets.iter().enumerate() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/optimization/dominant.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | for i in 0..lines.len() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `uses` [INFO] [stdout] --> src/optimization/ud.rs:56:27 [INFO] [stdout] | [INFO] [stdout] 56 | for (point, left, uses) in block.iter() { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_uses` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/grammar/letter.rs:47:13 [INFO] [stdout] | [INFO] [stdout] 47 | let mut temp = match self { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ll_table/mod.rs:80:13 [INFO] [stdout] | [INFO] [stdout] 80 | let mut tree_stack: Vec = Vec::new(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lr_table/lalr_table.rs:95:13 [INFO] [stdout] | [INFO] [stdout] 95 | let mut letter_stream: Vec = token_stream.stream.iter().map( [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lr_table/mod.rs:172:13 [INFO] [stdout] | [INFO] [stdout] 172 | let mut letter_stream: Vec = token_stream.stream.iter().map( [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lr_table/mod.rs:292:13 [INFO] [stdout] | [INFO] [stdout] 292 | let mut letter_stream: Vec = token_stream.stream.iter().map( [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lr0/lr0_item_set_family.rs:115:17 [INFO] [stdout] | [INFO] [stdout] 115 | let mut shuffle = &mut signs[..]; [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lr1/lr1_item_set_family.rs:109:17 [INFO] [stdout] | [INFO] [stdout] 109 | let mut shuffle = &mut signs[..]; [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/parse_tree/mod.rs:75:17 [INFO] [stdout] | [INFO] [stdout] 75 | state.serialize_field("children", &n.children); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 29 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.80s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/grammar-0f3ec5cbce333a78) [INFO] [stderr] Executable unittests src/bin/exam.rs (/opt/rustwide/target/debug/deps/exam-409bc3e3949897ae) [INFO] [stderr] Executable unittests src/bin/fa.rs (/opt/rustwide/target/debug/deps/fa-1a45b88f2083dcac) [INFO] [stderr] Executable unittests src/bin/parser.rs (/opt/rustwide/target/debug/deps/parser-7268740476c3c850) [INFO] running `Command { std: "docker" "inspect" "987b87be1b486c1ba78f2c720dab81be6111d6d2b653eef85fea843ba52d80f0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "987b87be1b486c1ba78f2c720dab81be6111d6d2b653eef85fea843ba52d80f0", kill_on_drop: false }` [INFO] [stdout] 987b87be1b486c1ba78f2c720dab81be6111d6d2b653eef85fea843ba52d80f0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] d5c58890aed3b9b2f08431288100f476573803b166400abbf159cb41768c3c8e [INFO] running `Command { std: "docker" "start" "-a" "d5c58890aed3b9b2f08431288100f476573803b166400abbf159cb41768c3c8e", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unused import: `Token` [INFO] [stderr] --> src/ll_table/mod.rs:3:33 [INFO] [stderr] | [INFO] [stderr] 3 | use crate::token::{TokenStream, Token}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `NonLeafNode` [INFO] [stderr] --> src/ll_table/mod.rs:4:36 [INFO] [stderr] | [INFO] [stderr] 4 | use crate::parse_tree::{ParseTree, NonLeafNode}; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Token` [INFO] [stderr] --> src/lr_table/mod.rs:3:33 [INFO] [stderr] | [INFO] [stderr] 3 | use crate::token::{TokenStream, Token}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Token` [INFO] [stderr] --> src/lr_table/lalr_table.rs:2:33 [INFO] [stderr] | [INFO] [stderr] 2 | use crate::token::{TokenStream, Token}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/lr0/lr0_item_set_family.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `rand::thread_rng` [INFO] [stderr] --> src/lr0/lr0_item_set_family.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use rand::thread_rng; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `VecDeque` [INFO] [stderr] --> src/lr1/lr1_item_set_family.rs:7:33 [INFO] [stderr] | [INFO] [stderr] 7 | use std::collections::{HashMap, VecDeque}; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `rand::thread_rng` [INFO] [stderr] --> src/lr1/lr1_item_set_family.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use rand::thread_rng; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `self::lr1_item_set::LR1ItemSet` [INFO] [stderr] --> src/lr1/mod.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use self::lr1_item_set::LR1ItemSet; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::grammar::letter::Letter` [INFO] [stderr] --> src/parse_tree/mod.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use crate::grammar::letter::Letter; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `ActionTableItem`, `LRTable` [INFO] [stderr] --> src/parse_tree/mod.rs:5:23 [INFO] [stderr] | [INFO] [stderr] 5 | use crate::lr_table::{LRTable, ActionTableItem}; [INFO] [stderr] | ^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `TokenStream` [INFO] [stderr] --> src/parse_tree/mod.rs:6:20 [INFO] [stderr] | [INFO] [stderr] 6 | use crate::token::{TokenStream, Token}; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::utils` [INFO] [stderr] --> src/automaton/dfa.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use crate::utils; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused label [INFO] [stderr] --> src/automaton/dfa.rs:124:9 [INFO] [stderr] | [INFO] [stderr] 124 | 'bigloop: loop { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_labels)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused label [INFO] [stderr] --> src/automaton/dfa.rs:130:13 [INFO] [stderr] | [INFO] [stderr] 130 | 'everysplit: for p in split.iter() { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused label [INFO] [stderr] --> src/automaton/dfa.rs:131:17 [INFO] [stderr] | [INFO] [stderr] 131 | 'everyletter: for letter in self.letters.iter() { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::utils` [INFO] [stderr] --> src/optimization/du.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use crate::utils; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `tree_stack` [INFO] [stderr] --> src/ll_table/mod.rs:80:17 [INFO] [stderr] | [INFO] [stderr] 80 | let mut tree_stack: Vec = Vec::new(); [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tree_stack` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/lr1/mod.rs:17:10 [INFO] [stderr] | [INFO] [stderr] 17 | for (i, item_set) in data.item_sets.iter().enumerate() { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/optimization/dominant.rs:13:9 [INFO] [stderr] | [INFO] [stderr] 13 | for i in 0..lines.len() { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `uses` [INFO] [stderr] --> src/optimization/ud.rs:56:27 [INFO] [stderr] | [INFO] [stderr] 56 | for (point, left, uses) in block.iter() { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_uses` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/grammar/letter.rs:47:13 [INFO] [stderr] | [INFO] [stderr] 47 | let mut temp = match self { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/ll_table/mod.rs:80:13 [INFO] [stderr] | [INFO] [stderr] 80 | let mut tree_stack: Vec = Vec::new(); [INFO] [stderr] | ----^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lr_table/lalr_table.rs:95:13 [INFO] [stderr] | [INFO] [stderr] 95 | let mut letter_stream: Vec = token_stream.stream.iter().map( [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lr_table/mod.rs:172:13 [INFO] [stderr] | [INFO] [stderr] 172 | let mut letter_stream: Vec = token_stream.stream.iter().map( [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lr_table/mod.rs:292:13 [INFO] [stderr] | [INFO] [stderr] 292 | let mut letter_stream: Vec = token_stream.stream.iter().map( [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lr0/lr0_item_set_family.rs:115:17 [INFO] [stderr] | [INFO] [stderr] 115 | let mut shuffle = &mut signs[..]; [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lr1/lr1_item_set_family.rs:109:17 [INFO] [stderr] | [INFO] [stderr] 109 | let mut shuffle = &mut signs[..]; [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/parse_tree/mod.rs:75:17 [INFO] [stderr] | [INFO] [stderr] 75 | state.serialize_field("children", &n.children); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: `grammar` (lib) generated 29 warnings [INFO] [stderr] warning: `grammar` (lib test) generated 29 warnings (29 duplicates) [INFO] [stderr] warning: unused import: `grammar::first_follow_set::FirstFollowSet` [INFO] [stderr] --> src/bin/parser.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use grammar::first_follow_set::FirstFollowSet; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `grammar::lr0::lr0_item_set_family::LR0ItemSetFamily` [INFO] [stderr] --> src/bin/parser.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use grammar::lr0::lr0_item_set_family::LR0ItemSetFamily; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `grammar::lr1::lr1_item_set_family::LR1ItemSetFamily` [INFO] [stderr] --> src/bin/parser.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use grammar::lr1::lr1_item_set_family::LR1ItemSetFamily; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `lalr1`, `ll1` [INFO] [stderr] --> src/bin/parser.rs:11:26 [INFO] [stderr] | [INFO] [stderr] 11 | use grammar::{lr0, slr1, ll1, lr1, lalr1}; [INFO] [stderr] | ^^^ ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `grammar::parse_tree::ParseTree` [INFO] [stderr] --> src/bin/parser.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | use grammar::parse_tree::ParseTree; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/parser.rs:173:17 [INFO] [stderr] | [INFO] [stderr] 173 | let mut grammar = Grammar::from_advanced_file(&f).unwrap(); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/bin/parser.rs:120:9 [INFO] [stderr] | [INFO] [stderr] 120 | file.write_all(serialized.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/bin/parser.rs:193:9 [INFO] [stderr] | [INFO] [stderr] 193 | outf.write_all(json.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused import: `grammar::lr_table::LRTable` [INFO] [stderr] --> src/bin/exam.rs:12:5 [INFO] [stderr] | [INFO] [stderr] 12 | use grammar::lr_table::LRTable; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `grammar::parse_tree::ParseTree` [INFO] [stderr] --> src/bin/exam.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | use grammar::parse_tree::ParseTree; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fs::File` [INFO] [stderr] --> src/bin/exam.rs:25:5 [INFO] [stderr] | [INFO] [stderr] 25 | use std::fs::File; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fs` [INFO] [stderr] --> src/bin/exam.rs:26:5 [INFO] [stderr] | [INFO] [stderr] 26 | use std::fs; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::prelude` [INFO] [stderr] --> src/bin/exam.rs:27:5 [INFO] [stderr] | [INFO] [stderr] 27 | use std::io::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `parse_tree` [INFO] [stderr] --> src/bin/exam.rs:360:14 [INFO] [stderr] | [INFO] [stderr] 360 | let (parse_tree, table) = ll_table.analysis_with_process(&token_stream, g.origin.clone()); [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parse_tree` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/bin/exam.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 35 | io::stdin().read_line(&mut input); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: `grammar` (bin "parser" test) generated 8 warnings [INFO] [stderr] warning: `grammar` (bin "exam" test) generated 7 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.20s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/grammar-0f3ec5cbce333a78) [INFO] [stdout] [INFO] [stdout] running 8 tests [INFO] [stdout] test grammar::letter::test::test_letter_1 ... ok [INFO] [stdout] test grammar::letter::test::test_letter_3 ... ok [INFO] [stdout] test grammar::rule::test::test_rule_1 ... ok [INFO] [stdout] test grammar::rule::test::test_rule_2 ... ok [INFO] [stdout] test grammar::letter::test::test_letter_2 ... ok [INFO] [stdout] test grammar::rule::test::test_rule_3 ... ok [INFO] [stdout] test grammar::rule::test::test_rule_4 ... ok [INFO] [stdout] test grammar::test::test_grammar_1 ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- grammar::test::test_grammar_1 stdout ---- [INFO] [stdout] thread 'grammar::test::test_grammar_1' panicked at 'assertion failed: `(left == right)` [INFO] [stdout] left: `rules: [INFO] [stdout] S -> Aa|a [INFO] [stdout] A -> ab|S [INFO] [stdout] origin: [INFO] [stdout] S [INFO] [stdout] terminals: [INFO] [stdout] |, S, b, A, a, [INFO] [stdout] non terminals: [INFO] [stdout] A, S, `, [INFO] [stdout] right: `rules: [INFO] [stdout] origin: [INFO] [stdout] . [INFO] [stdout] terminals: [INFO] [stdout] [INFO] [stdout] non terminals: [INFO] [stdout] `', src/grammar/mod.rs:267:9 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x557a9539fadd - std::backtrace_rs::backtrace::libunwind::trace::ha359b7f0090e2792 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x557a9539fadd - std::backtrace_rs::backtrace::trace_unsynchronized::h0584631f25c1d70e [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x557a9539fadd - std::sys_common::backtrace::_print_fmt::hdadffd97d279ff14 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stdout] 3: 0x557a9539fadd - ::fmt::h26f189e611080a74 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stdout] 4: 0x557a953c23ec - core::fmt::write::hfb5d11dfe037e8b7 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/fmt/mod.rs:1194:17 [INFO] [stdout] 5: 0x557a9539c4a1 - std::io::Write::write_fmt::h6a24ec64406df9e2 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/io/mod.rs:1655:15 [INFO] [stdout] 6: 0x557a953a1825 - std::sys_common::backtrace::_print::h7a0e44402913ba60 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stdout] 7: 0x557a953a1825 - std::sys_common::backtrace::print::h9767dc455a84e728 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stdout] 8: 0x557a953a1825 - std::panicking::default_hook::{{closure}}::h60afd6c8b12988ad [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:295:22 [INFO] [stdout] 9: 0x557a953a1514 - std::panicking::default_hook::ha7b9bac6813f9d21 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:311:9 [INFO] [stdout] 10: 0x557a953a1d72 - std::panicking::rust_panic_with_hook::h7b117a162a6f8664 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:698:17 [INFO] [stdout] 11: 0x557a953a1c57 - std::panicking::begin_panic_handler::{{closure}}::h346750923c608600 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:588:13 [INFO] [stdout] 12: 0x557a9539ff94 - std::sys_common::backtrace::__rust_end_short_backtrace::h768c56c6a0c055c0 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:138:18 [INFO] [stdout] 13: 0x557a953a1989 - rust_begin_unwind [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:584:5 [INFO] [stdout] 14: 0x557a953263e3 - core::panicking::panic_fmt::h5c41cb2fa118fdbc [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/panicking.rs:143:14 [INFO] [stdout] 15: 0x557a953c0fb8 - core::panicking::assert_failed_inner::h337b271ded48bc15 [INFO] [stdout] 16: 0x557a953300ba - core::panicking::assert_failed::h7f0960ae2d8144d4 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/panicking.rs:182:5 [INFO] [stdout] 17: 0x557a95331caf - grammar::grammar::test::test_grammar_1::he9c9690352dd5ce1 [INFO] [stdout] at /opt/rustwide/workdir/src/grammar/mod.rs:267:9 [INFO] [stdout] 18: 0x557a9533198a - grammar::grammar::test::test_grammar_1::{{closure}}::hfbac65d2d078ee33 [INFO] [stdout] at /opt/rustwide/workdir/src/grammar/mod.rs:261:5 [INFO] [stdout] 19: 0x557a9532f19e - core::ops::function::FnOnce::call_once::hc666132ded8ec5d4 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 20: 0x557a95369ff3 - core::ops::function::FnOnce::call_once::h018fc248431ce8de [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 21: 0x557a95369ff3 - test::__rust_begin_short_backtrace::h293b982b6069d6e3 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/test/src/lib.rs:574:5 [INFO] [stdout] 22: 0x557a95368da9 - as core::ops::function::FnOnce>::call_once::h4fc1be1a762c7a46 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/alloc/src/boxed.rs:1861:9 [INFO] [stdout] 23: 0x557a95368da9 - as core::ops::function::FnOnce<()>>::call_once::hd44623ec51b9e897 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 24: 0x557a95368da9 - std::panicking::try::do_call::ha8cfa4b025f5b832 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:492:40 [INFO] [stdout] 25: 0x557a95368da9 - std::panicking::try::h664f75e41c112145 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:456:19 [INFO] [stdout] 26: 0x557a95368da9 - std::panic::catch_unwind::h4932ec05cd60558e [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panic.rs:137:14 [INFO] [stdout] 27: 0x557a95368da9 - test::run_test_in_process::ha14a47756671755c [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/test/src/lib.rs:597:18 [INFO] [stdout] 28: 0x557a95368da9 - test::run_test::run_test_inner::{{closure}}::h0ec9e37c8f67b62d [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/test/src/lib.rs:491:39 [INFO] [stdout] 29: 0x557a95334f5e - test::run_test::run_test_inner::{{closure}}::hd9d2e7f26d4f59e6 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/test/src/lib.rs:518:37 [INFO] [stdout] 30: 0x557a95334f5e - std::sys_common::backtrace::__rust_begin_short_backtrace::h41c0a39fac5123f8 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:122:18 [INFO] [stdout] 31: 0x557a9533a4c8 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h69a02ca0bebb6eeb [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/thread/mod.rs:498:17 [INFO] [stdout] 32: 0x557a9533a4c8 - as core::ops::function::FnOnce<()>>::call_once::hdd05632920ce689b [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 33: 0x557a9533a4c8 - std::panicking::try::do_call::hb4947142729b90fd [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:492:40 [INFO] [stdout] 34: 0x557a9533a4c8 - std::panicking::try::h15a7e9b8394e6878 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:456:19 [INFO] [stdout] 35: 0x557a9533a4c8 - std::panic::catch_unwind::hbd3f4a3f9df49b85 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panic.rs:137:14 [INFO] [stdout] 36: 0x557a9533a4c8 - std::thread::Builder::spawn_unchecked_::{{closure}}::h880b5d5f1b9799f4 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/thread/mod.rs:497:30 [INFO] [stdout] 37: 0x557a9533a4c8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h304d5eaf401f5061 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 38: 0x557a953a6583 - as core::ops::function::FnOnce>::call_once::hdba7f2afed0c35b3 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/alloc/src/boxed.rs:1861:9 [INFO] [stdout] 39: 0x557a953a6583 - as core::ops::function::FnOnce>::call_once::h38b0832765bf7961 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/alloc/src/boxed.rs:1861:9 [INFO] [stdout] 40: 0x557a953a6583 - std::sys::unix::thread::Thread::new::thread_start::h70236dc17753425e [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 41: 0x7f6b73a8f609 - start_thread [INFO] [stdout] 42: 0x7f6b73865163 - clone [INFO] [stdout] 43: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] grammar::test::test_grammar_1 [INFO] [stdout] [INFO] [stdout] test result: FAILED. 7 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--lib' [INFO] running `Command { std: "docker" "inspect" "d5c58890aed3b9b2f08431288100f476573803b166400abbf159cb41768c3c8e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d5c58890aed3b9b2f08431288100f476573803b166400abbf159cb41768c3c8e", kill_on_drop: false }` [INFO] [stdout] d5c58890aed3b9b2f08431288100f476573803b166400abbf159cb41768c3c8e