[INFO] cloning repository https://github.com/Verdex/bola
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Verdex/bola" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVerdex%2Fbola", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVerdex%2Fbola'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 626feec38eec85e895245cf717a5445650d82396
[INFO] checking Verdex/bola/626feec38eec85e895245cf717a5445650d82396 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVerdex%2Fbola" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Verdex/bola on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Verdex/bola
[INFO] finished tweaking git repo https://github.com/Verdex/bola
[INFO] tweaked toml for git repo https://github.com/Verdex/bola written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Verdex/bola 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://www.github.com/verdex/renounce`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a28d7a9d24f053d8413cd9c9ac6978558cdf696d5b5feacac06c6382f8f80db
[INFO] running `Command { std: "docker" "start" "-a" "2a28d7a9d24f053d8413cd9c9ac6978558cdf696d5b5feacac06c6382f8f80db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a28d7a9d24f053d8413cd9c9ac6978558cdf696d5b5feacac06c6382f8f80db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a28d7a9d24f053d8413cd9c9ac6978558cdf696d5b5feacac06c6382f8f80db", kill_on_drop: false }`
[INFO] [stdout] 2a28d7a9d24f053d8413cd9c9ac6978558cdf696d5b5feacac06c6382f8f80db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bdf0d2441a57810f0babc0f49194928daa5419faab0106c8fe8188dfc5dd3a5
[INFO] running `Command { std: "docker" "start" "-a" "8bdf0d2441a57810f0babc0f49194928daa5419faab0106c8fe8188dfc5dd3a5", kill_on_drop: false }`
[INFO] [stderr]     Checking renounce v0.3.0 (https://www.github.com/verdex/renounce?tag=release-0.3.0#a963bf88)
[INFO] [stderr]     Checking bola v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `renounce::*`
[INFO] [stdout]  --> src/standard/parser/parser_parser.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use renounce::*;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parser_parser::*`
[INFO] [stdout]  --> src/standard/parser/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use parser_parser::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::standard::word::*`
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     use crate::standard::word::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `renounce::*`
[INFO] [stdout]  --> src/standard/parser/parser_parser.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use renounce::*;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parser_parser::*`
[INFO] [stdout]  --> src/standard/parser/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use parser_parser::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::standard::word::*`
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     use crate::standard::word::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start_index`
[INFO] [stdout]   --> src/standard/parser/parser_parser.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let start_index = env.pop_data_as("parse_word_symbol::start_index".to_owned(), pattern!(IlData::Usize(x) => x))?;
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/standard/parser/parser_parser.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let input = env.pop_data_as("parse_word_symbol::start_index".to_owned(), pattern!(IlData::String(x) => x))?;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/standard/parser/def_word_parser.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let mut i : usize = 0;
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]   --> src/standard/parser/def_word_parser.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let target = match target.next() {
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/standard/parser/def_word_parser.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let mut i : usize = 0;
[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/machine.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut prog_len = prog.len();
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/main.rs:10:29
[INFO] [stdout]    |
[INFO] [stdout] 10 |                       , f: |env| { println!("blarg"); Ok(()) }
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `I` is never used
[INFO] [stdout]  --> src/util.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | static mut I : u64 = 0;
[INFO] [stdout]   |            ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gen_sym` is never used
[INFO] [stdout]  --> src/util.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn gen_sym(prefix : &str) -> String {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `push_usize` is never used
[INFO] [stdout]   --> src/standard/word.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn push_usize(value : usize) -> Word {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `push_word` is never used
[INFO] [stdout]   --> src/standard/word.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn push_word(value : Rc<Word>) -> Word {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `push_string` is never used
[INFO] [stdout]   --> src/standard/word.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn push_string(value : String) -> Word {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `push_symbol` is never used
[INFO] [stdout]   --> src/standard/word.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn push_symbol(value : String) -> Word {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `def_word` is never used
[INFO] [stdout]   --> src/standard/word.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn def_word() -> Word {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_parser_definition` is never used
[INFO] [stdout]   --> src/standard/parser/parser_parser.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn parse_parser_definition() -> Word {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_def_word` is never used
[INFO] [stdout]  --> src/standard/parser/def_word_parser.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn parse_def_word() -> Word {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     env.define_word("blarg".to_owned(), blarg);
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let _ = env.define_word("blarg".to_owned(), blarg);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/standard/parser/def_word_parser.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 |                 target.take_while(|c| *c != ';').collect::<String>();
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 15 |                 let _ = target.take_while(|c| *c != ';').collect::<String>();
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start_index`
[INFO] [stdout]   --> src/standard/parser/parser_parser.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let start_index = env.pop_data_as("parse_word_symbol::start_index".to_owned(), pattern!(IlData::Usize(x) => x))?;
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/standard/parser/parser_parser.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let input = env.pop_data_as("parse_word_symbol::start_index".to_owned(), pattern!(IlData::String(x) => x))?;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/standard/parser/def_word_parser.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let mut i : usize = 0;
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]   --> src/standard/parser/def_word_parser.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let target = match target.next() {
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/standard/parser/def_word_parser.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let mut i : usize = 0;
[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/machine.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut prog_len = prog.len();
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/main.rs:10:29
[INFO] [stdout]    |
[INFO] [stdout] 10 |                       , f: |env| { println!("blarg"); Ok(()) }
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `I` is never used
[INFO] [stdout]  --> src/util.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | static mut I : u64 = 0;
[INFO] [stdout]   |            ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gen_sym` is never used
[INFO] [stdout]  --> src/util.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn gen_sym(prefix : &str) -> String {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `push_usize` is never used
[INFO] [stdout]   --> src/standard/word.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn push_usize(value : usize) -> Word {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `push_word` is never used
[INFO] [stdout]   --> src/standard/word.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn push_word(value : Rc<Word>) -> Word {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `push_string` is never used
[INFO] [stdout]   --> src/standard/word.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn push_string(value : String) -> Word {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `push_symbol` is never used
[INFO] [stdout]   --> src/standard/word.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn push_symbol(value : String) -> Word {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `def_word` is never used
[INFO] [stdout]   --> src/standard/word.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn def_word() -> Word {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_parser_definition` is never used
[INFO] [stdout]   --> src/standard/parser/parser_parser.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn parse_parser_definition() -> Word {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_def_word` is never used
[INFO] [stdout]  --> src/standard/parser/def_word_parser.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn parse_def_word() -> Word {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     env.define_word("blarg".to_owned(), blarg);
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let _ = env.define_word("blarg".to_owned(), blarg);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/standard/parser/def_word_parser.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 |                 target.take_while(|c| *c != ';').collect::<String>();
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 15 |                 let _ = target.take_while(|c| *c != ';').collect::<String>();
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "8bdf0d2441a57810f0babc0f49194928daa5419faab0106c8fe8188dfc5dd3a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bdf0d2441a57810f0babc0f49194928daa5419faab0106c8fe8188dfc5dd3a5", kill_on_drop: false }`
[INFO] [stdout] 8bdf0d2441a57810f0babc0f49194928daa5419faab0106c8fe8188dfc5dd3a5