Dec 17 18:06:42.069 INFO checking patallen/SlangVM against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252 Dec 17 18:06:42.069 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/patallen/SlangVM:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"` Dec 17 18:06:42.495 INFO [stdout] c465371a72325d5f343fcc4f871dc79f730fd98a3631a69155fae851e374b8be Dec 17 18:06:42.498 INFO running `"docker" "start" "-a" "c465371a72325d5f343fcc4f871dc79f730fd98a3631a69155fae851e374b8be"` Dec 17 18:06:44.863 INFO [stderr] Compiling gcc v0.3.46 Dec 17 18:06:44.869 INFO [stderr] Checking serde v1.0.4 Dec 17 18:06:44.869 INFO [stderr] Checking log-mdc v0.1.0 Dec 17 18:06:44.869 INFO [stderr] Checking humantime v1.0.0 Dec 17 18:06:44.869 INFO [stderr] Checking itertools v0.6.0 Dec 17 18:06:44.869 INFO [stderr] Checking ordered-float v0.4.0 Dec 17 18:06:44.869 INFO [stderr] Checking chrono v0.3.1 Dec 17 18:06:44.869 INFO [stderr] Compiling serde_derive v1.0.4 Dec 17 18:06:52.841 INFO [stderr] Compiling miniz-sys v0.1.9 Dec 17 18:06:56.493 INFO [stderr] Checking flate2 v0.2.19 Dec 17 18:07:05.966 INFO [stderr] Checking serde_json v1.0.2 Dec 17 18:07:05.973 INFO [stderr] Checking serde_yaml v0.7.0 Dec 17 18:07:05.975 INFO [stderr] Checking serde-value v0.5.0 Dec 17 18:07:09.420 INFO [stderr] Checking log4rs v0.7.0 Dec 17 18:07:11.440 INFO [stderr] Checking slang v0.1.0 (/opt/crater/workdir) Dec 17 18:07:12.636 INFO [stderr] warning: unused import: `assembler::lexer::Lexer` Dec 17 18:07:12.636 INFO [stderr] --> src/main.rs:23:5 Dec 17 18:07:12.636 INFO [stderr] | Dec 17 18:07:12.636 INFO [stderr] 23 | use assembler::lexer::Lexer; Dec 17 18:07:12.636 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:12.636 INFO [stderr] | Dec 17 18:07:12.636 INFO [stderr] = note: #[warn(unused_imports)] on by default Dec 17 18:07:12.636 INFO [stderr] Dec 17 18:07:12.636 INFO [stderr] warning: unused imports: `Tokenizer`, `shunting_yard` Dec 17 18:07:12.637 INFO [stderr] --> src/main.rs:24:21 Dec 17 18:07:12.637 INFO [stderr] | Dec 17 18:07:12.637 INFO [stderr] 24 | use compiler::lex::{Tokenizer, shunting_yard}; Dec 17 18:07:12.637 INFO [stderr] | ^^^^^^^^^ ^^^^^^^^^^^^^ Dec 17 18:07:12.637 INFO [stderr] Dec 17 18:07:12.652 INFO [stderr] warning: unused import: `assembler::lexer::Lexer` Dec 17 18:07:12.652 INFO [stderr] --> src/main.rs:23:5 Dec 17 18:07:12.652 INFO [stderr] | Dec 17 18:07:12.652 INFO [stderr] 23 | use assembler::lexer::Lexer; Dec 17 18:07:12.652 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:12.652 INFO [stderr] | Dec 17 18:07:12.652 INFO [stderr] = note: #[warn(unused_imports)] on by default Dec 17 18:07:12.652 INFO [stderr] Dec 17 18:07:12.652 INFO [stderr] warning: unused imports: `Tokenizer`, `shunting_yard` Dec 17 18:07:12.652 INFO [stderr] --> src/main.rs:24:21 Dec 17 18:07:12.652 INFO [stderr] | Dec 17 18:07:12.652 INFO [stderr] 24 | use compiler::lex::{Tokenizer, shunting_yard}; Dec 17 18:07:12.652 INFO [stderr] | ^^^^^^^^^ ^^^^^^^^^^^^^ Dec 17 18:07:12.652 INFO [stderr] Dec 17 18:07:12.940 INFO [stderr] warning: use of deprecated item 'core::str::::trim_left_matches': superseded by `trim_start_matches` Dec 17 18:07:12.940 INFO [stderr] --> src/assembler/lexer.rs:72:30 Dec 17 18:07:12.940 INFO [stderr] | Dec 17 18:07:12.940 INFO [stderr] 72 | let ret = string.trim_left_matches(';').trim_left(); Dec 17 18:07:12.940 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Dec 17 18:07:12.941 INFO [stderr] | Dec 17 18:07:12.941 INFO [stderr] = note: #[warn(deprecated)] on by default Dec 17 18:07:12.941 INFO [stderr] Dec 17 18:07:12.941 INFO [stderr] warning: use of deprecated item 'core::str::::trim_left': superseded by `trim_start` Dec 17 18:07:12.941 INFO [stderr] --> src/assembler/lexer.rs:72:53 Dec 17 18:07:12.941 INFO [stderr] | Dec 17 18:07:12.941 INFO [stderr] 72 | let ret = string.trim_left_matches(';').trim_left(); Dec 17 18:07:12.941 INFO [stderr] | ^^^^^^^^^ Dec 17 18:07:12.941 INFO [stderr] Dec 17 18:07:12.944 INFO [stderr] warning: use of deprecated item 'core::str::::trim_left_matches': superseded by `trim_start_matches` Dec 17 18:07:12.944 INFO [stderr] --> src/assembler/lexer.rs:72:30 Dec 17 18:07:12.944 INFO [stderr] | Dec 17 18:07:12.944 INFO [stderr] 72 | let ret = string.trim_left_matches(';').trim_left(); Dec 17 18:07:12.944 INFO [stderr] | ^^^^^^^^^^^^^^^^^ Dec 17 18:07:12.944 INFO [stderr] | Dec 17 18:07:12.944 INFO [stderr] = note: #[warn(deprecated)] on by default Dec 17 18:07:12.944 INFO [stderr] Dec 17 18:07:12.944 INFO [stderr] warning: use of deprecated item 'core::str::::trim_left': superseded by `trim_start` Dec 17 18:07:12.944 INFO [stderr] --> src/assembler/lexer.rs:72:53 Dec 17 18:07:12.944 INFO [stderr] | Dec 17 18:07:12.944 INFO [stderr] 72 | let ret = string.trim_left_matches(';').trim_left(); Dec 17 18:07:12.944 INFO [stderr] | ^^^^^^^^^ Dec 17 18:07:12.944 INFO [stderr] Dec 17 18:07:13.124 INFO [stderr] warning: enum is never used: `Token` Dec 17 18:07:13.124 INFO [stderr] --> src/compiler/lex.rs:7:1 Dec 17 18:07:13.124 INFO [stderr] | Dec 17 18:07:13.124 INFO [stderr] 7 | pub enum Token { Dec 17 18:07:13.124 INFO [stderr] | ^^^^^^^^^^^^^^ Dec 17 18:07:13.124 INFO [stderr] | Dec 17 18:07:13.124 INFO [stderr] = note: #[warn(dead_code)] on by default Dec 17 18:07:13.124 INFO [stderr] Dec 17 18:07:13.125 INFO [stderr] warning: enum is never used: `ConsumeType` Dec 17 18:07:13.125 INFO [stderr] --> src/compiler/lex.rs:15:1 Dec 17 18:07:13.125 INFO [stderr] | Dec 17 18:07:13.125 INFO [stderr] 15 | enum ConsumeType { Ident, Number } Dec 17 18:07:13.125 INFO [stderr] | ^^^^^^^^^^^^^^^^ Dec 17 18:07:13.125 INFO [stderr] Dec 17 18:07:13.125 INFO [stderr] warning: struct is never constructed: `Tokenizer` Dec 17 18:07:13.125 INFO [stderr] --> src/compiler/lex.rs:17:1 Dec 17 18:07:13.125 INFO [stderr] | Dec 17 18:07:13.125 INFO [stderr] 17 | pub struct Tokenizer<'a> { Dec 17 18:07:13.125 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.125 INFO [stderr] Dec 17 18:07:13.125 INFO [stderr] warning: method is never used: `new` Dec 17 18:07:13.125 INFO [stderr] --> src/compiler/lex.rs:21:5 Dec 17 18:07:13.125 INFO [stderr] | Dec 17 18:07:13.125 INFO [stderr] 21 | pub fn new(input: &'a str) -> Self { Dec 17 18:07:13.125 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.125 INFO [stderr] Dec 17 18:07:13.125 INFO [stderr] warning: method is never used: `tokenize` Dec 17 18:07:13.125 INFO [stderr] --> src/compiler/lex.rs:26:5 Dec 17 18:07:13.125 INFO [stderr] | Dec 17 18:07:13.125 INFO [stderr] 26 | pub fn tokenize(&mut self) -> Vec { Dec 17 18:07:13.125 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.125 INFO [stderr] Dec 17 18:07:13.125 INFO [stderr] warning: function is never used: `consume_ident` Dec 17 18:07:13.125 INFO [stderr] --> src/compiler/lex.rs:48:1 Dec 17 18:07:13.125 INFO [stderr] | Dec 17 18:07:13.125 INFO [stderr] 48 | fn consume_ident(peekable: &mut Peekable) -> Token { Dec 17 18:07:13.125 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.125 INFO [stderr] Dec 17 18:07:13.125 INFO [stderr] warning: function is never used: `consume_number` Dec 17 18:07:13.125 INFO [stderr] --> src/compiler/lex.rs:53:1 Dec 17 18:07:13.125 INFO [stderr] | Dec 17 18:07:13.125 INFO [stderr] 53 | fn consume_number(peekable: &mut Peekable) -> Token { Dec 17 18:07:13.125 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.125 INFO [stderr] Dec 17 18:07:13.125 INFO [stderr] warning: function is never used: `valid_token_char` Dec 17 18:07:13.125 INFO [stderr] --> src/compiler/lex.rs:58:1 Dec 17 18:07:13.125 INFO [stderr] | Dec 17 18:07:13.125 INFO [stderr] 58 | fn valid_token_char(ch: &char, tt: ConsumeType) -> bool { Dec 17 18:07:13.125 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.125 INFO [stderr] Dec 17 18:07:13.125 INFO [stderr] warning: function is never used: `shunting_yard` Dec 17 18:07:13.125 INFO [stderr] --> src/compiler/lex.rs:71:1 Dec 17 18:07:13.125 INFO [stderr] | Dec 17 18:07:13.125 INFO [stderr] 71 | pub fn shunting_yard(tokens: Vec) -> Vec { Dec 17 18:07:13.125 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.125 INFO [stderr] Dec 17 18:07:13.140 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used Dec 17 18:07:13.140 INFO [stderr] --> src/compiler/lex.rs:38:73 Dec 17 18:07:13.140 INFO [stderr] | Dec 17 18:07:13.140 INFO [stderr] 38 | ')' => {tokens.push(Token::RightParen); chars.take(1).collect::();}, Dec 17 18:07:13.140 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.140 INFO [stderr] | Dec 17 18:07:13.140 INFO [stderr] = note: #[warn(unused_must_use)] on by default Dec 17 18:07:13.140 INFO [stderr] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead Dec 17 18:07:13.140 INFO [stderr] Dec 17 18:07:13.140 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used Dec 17 18:07:13.140 INFO [stderr] --> src/compiler/lex.rs:39:72 Dec 17 18:07:13.140 INFO [stderr] | Dec 17 18:07:13.140 INFO [stderr] 39 | '(' => {tokens.push(Token::LeftParen); chars.take(1).collect::();}, Dec 17 18:07:13.140 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.140 INFO [stderr] | Dec 17 18:07:13.140 INFO [stderr] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead Dec 17 18:07:13.140 INFO [stderr] Dec 17 18:07:13.140 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used Dec 17 18:07:13.140 INFO [stderr] --> src/compiler/lex.rs:40:42 Dec 17 18:07:13.140 INFO [stderr] | Dec 17 18:07:13.140 INFO [stderr] 40 | ' ' => { chars.take(1).collect::(); } Dec 17 18:07:13.141 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.141 INFO [stderr] | Dec 17 18:07:13.141 INFO [stderr] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead Dec 17 18:07:13.141 INFO [stderr] Dec 17 18:07:13.156 INFO [stderr] warning: method is never used: `next_code` Dec 17 18:07:13.156 INFO [stderr] --> src/program.rs:28:5 Dec 17 18:07:13.156 INFO [stderr] | Dec 17 18:07:13.156 INFO [stderr] 28 | pub fn next_code(&mut self) -> u16 { Dec 17 18:07:13.156 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.156 INFO [stderr] | Dec 17 18:07:13.156 INFO [stderr] = note: #[warn(dead_code)] on by default Dec 17 18:07:13.156 INFO [stderr] Dec 17 18:07:13.156 INFO [stderr] warning: method is never used: `reset` Dec 17 18:07:13.156 INFO [stderr] --> src/program.rs:41:5 Dec 17 18:07:13.156 INFO [stderr] | Dec 17 18:07:13.156 INFO [stderr] 41 | pub fn reset(&mut self) { Dec 17 18:07:13.156 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.156 INFO [stderr] Dec 17 18:07:13.156 INFO [stderr] warning: enum is never used: `Token` Dec 17 18:07:13.156 INFO [stderr] --> src/compiler/lex.rs:7:1 Dec 17 18:07:13.156 INFO [stderr] | Dec 17 18:07:13.156 INFO [stderr] 7 | pub enum Token { Dec 17 18:07:13.156 INFO [stderr] | ^^^^^^^^^^^^^^ Dec 17 18:07:13.156 INFO [stderr] Dec 17 18:07:13.160 INFO [stderr] warning: enum is never used: `ConsumeType` Dec 17 18:07:13.160 INFO [stderr] --> src/compiler/lex.rs:15:1 Dec 17 18:07:13.160 INFO [stderr] | Dec 17 18:07:13.160 INFO [stderr] 15 | enum ConsumeType { Ident, Number } Dec 17 18:07:13.160 INFO [stderr] | ^^^^^^^^^^^^^^^^ Dec 17 18:07:13.160 INFO [stderr] Dec 17 18:07:13.160 INFO [stderr] warning: struct is never constructed: `Tokenizer` Dec 17 18:07:13.160 INFO [stderr] --> src/compiler/lex.rs:17:1 Dec 17 18:07:13.160 INFO [stderr] | Dec 17 18:07:13.160 INFO [stderr] 17 | pub struct Tokenizer<'a> { Dec 17 18:07:13.160 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.160 INFO [stderr] Dec 17 18:07:13.160 INFO [stderr] warning: method is never used: `new` Dec 17 18:07:13.160 INFO [stderr] --> src/compiler/lex.rs:21:5 Dec 17 18:07:13.160 INFO [stderr] | Dec 17 18:07:13.160 INFO [stderr] 21 | pub fn new(input: &'a str) -> Self { Dec 17 18:07:13.160 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.160 INFO [stderr] Dec 17 18:07:13.160 INFO [stderr] warning: method is never used: `tokenize` Dec 17 18:07:13.161 INFO [stderr] --> src/compiler/lex.rs:26:5 Dec 17 18:07:13.161 INFO [stderr] | Dec 17 18:07:13.161 INFO [stderr] 26 | pub fn tokenize(&mut self) -> Vec { Dec 17 18:07:13.161 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.161 INFO [stderr] Dec 17 18:07:13.161 INFO [stderr] warning: function is never used: `consume_ident` Dec 17 18:07:13.161 INFO [stderr] --> src/compiler/lex.rs:48:1 Dec 17 18:07:13.161 INFO [stderr] | Dec 17 18:07:13.161 INFO [stderr] 48 | fn consume_ident(peekable: &mut Peekable) -> Token { Dec 17 18:07:13.161 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.161 INFO [stderr] Dec 17 18:07:13.161 INFO [stderr] warning: function is never used: `consume_number` Dec 17 18:07:13.161 INFO [stderr] --> src/compiler/lex.rs:53:1 Dec 17 18:07:13.161 INFO [stderr] | Dec 17 18:07:13.161 INFO [stderr] 53 | fn consume_number(peekable: &mut Peekable) -> Token { Dec 17 18:07:13.161 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.161 INFO [stderr] Dec 17 18:07:13.161 INFO [stderr] warning: function is never used: `valid_token_char` Dec 17 18:07:13.161 INFO [stderr] --> src/compiler/lex.rs:58:1 Dec 17 18:07:13.161 INFO [stderr] | Dec 17 18:07:13.161 INFO [stderr] 58 | fn valid_token_char(ch: &char, tt: ConsumeType) -> bool { Dec 17 18:07:13.161 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.161 INFO [stderr] Dec 17 18:07:13.161 INFO [stderr] warning: function is never used: `shunting_yard` Dec 17 18:07:13.161 INFO [stderr] --> src/compiler/lex.rs:71:1 Dec 17 18:07:13.161 INFO [stderr] | Dec 17 18:07:13.161 INFO [stderr] 71 | pub fn shunting_yard(tokens: Vec) -> Vec { Dec 17 18:07:13.161 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.161 INFO [stderr] Dec 17 18:07:13.161 INFO [stderr] warning: field is never used: `current_line` Dec 17 18:07:13.161 INFO [stderr] --> src/assembler/mod.rs:12:5 Dec 17 18:07:13.161 INFO [stderr] | Dec 17 18:07:13.161 INFO [stderr] 12 | current_line: usize, Dec 17 18:07:13.161 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.161 INFO [stderr] Dec 17 18:07:13.161 INFO [stderr] warning: field is never used: `errors` Dec 17 18:07:13.161 INFO [stderr] --> src/assembler/mod.rs:13:5 Dec 17 18:07:13.161 INFO [stderr] | Dec 17 18:07:13.161 INFO [stderr] 13 | errors: Vec, Dec 17 18:07:13.161 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.161 INFO [stderr] Dec 17 18:07:13.164 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used Dec 17 18:07:13.164 INFO [stderr] --> src/compiler/lex.rs:38:73 Dec 17 18:07:13.164 INFO [stderr] | Dec 17 18:07:13.164 INFO [stderr] 38 | ')' => {tokens.push(Token::RightParen); chars.take(1).collect::();}, Dec 17 18:07:13.164 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.164 INFO [stderr] | Dec 17 18:07:13.164 INFO [stderr] = note: #[warn(unused_must_use)] on by default Dec 17 18:07:13.164 INFO [stderr] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead Dec 17 18:07:13.164 INFO [stderr] Dec 17 18:07:13.164 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used Dec 17 18:07:13.164 INFO [stderr] --> src/compiler/lex.rs:39:72 Dec 17 18:07:13.164 INFO [stderr] | Dec 17 18:07:13.164 INFO [stderr] 39 | '(' => {tokens.push(Token::LeftParen); chars.take(1).collect::();}, Dec 17 18:07:13.164 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.164 INFO [stderr] | Dec 17 18:07:13.164 INFO [stderr] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead Dec 17 18:07:13.164 INFO [stderr] Dec 17 18:07:13.164 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used Dec 17 18:07:13.164 INFO [stderr] --> src/compiler/lex.rs:40:42 Dec 17 18:07:13.164 INFO [stderr] | Dec 17 18:07:13.164 INFO [stderr] 40 | ' ' => { chars.take(1).collect::(); } Dec 17 18:07:13.164 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 17 18:07:13.164 INFO [stderr] | Dec 17 18:07:13.164 INFO [stderr] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead Dec 17 18:07:13.164 INFO [stderr] Dec 17 18:07:13.228 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 28.53s Dec 17 18:07:14.477 INFO running `"docker" "inspect" "c465371a72325d5f343fcc4f871dc79f730fd98a3631a69155fae851e374b8be"` Dec 17 18:07:14.750 INFO running `"docker" "rm" "-f" "c465371a72325d5f343fcc4f871dc79f730fd98a3631a69155fae851e374b8be"` Dec 17 18:07:15.043 INFO [stdout] c465371a72325d5f343fcc4f871dc79f730fd98a3631a69155fae851e374b8be