[INFO] cloning repository https://github.com/iamshabell/malilang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iamshabell/malilang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamshabell%2Fmalilang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamshabell%2Fmalilang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c9108ab9c34b77ebde36d7cfcc181838ac42449f
[INFO] checking iamshabell/malilang against master#32cd9114712a24010b0583624dc52ac302194128 for pr-143717
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamshabell%2Fmalilang" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/iamshabell/malilang
[INFO] finished tweaking git repo https://github.com/iamshabell/malilang
[INFO] tweaked toml for git repo https://github.com/iamshabell/malilang written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/iamshabell/malilang on toolchain 32cd9114712a24010b0583624dc52ac302194128
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+32cd9114712a24010b0583624dc52ac302194128" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/iamshabell/malilang 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" "+32cd9114712a24010b0583624dc52ac302194128" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+32cd9114712a24010b0583624dc52ac302194128" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8021208bd9ee7abf0899516f038c784299409afd5bbd6c1e72776492ca93120f
[INFO] running `Command { std: "docker" "start" "-a" "8021208bd9ee7abf0899516f038c784299409afd5bbd6c1e72776492ca93120f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8021208bd9ee7abf0899516f038c784299409afd5bbd6c1e72776492ca93120f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8021208bd9ee7abf0899516f038c784299409afd5bbd6c1e72776492ca93120f", kill_on_drop: false }`
[INFO] [stdout] 8021208bd9ee7abf0899516f038c784299409afd5bbd6c1e72776492ca93120f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+32cd9114712a24010b0583624dc52ac302194128" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e585f5a7d163954434f18264245ea3074428ca8e131b7e166176869eccc7c728
[INFO] running `Command { std: "docker" "start" "-a" "e585f5a7d163954434f18264245ea3074428ca8e131b7e166176869eccc7c728", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.89
[INFO] [stderr]     Checking malilang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/main.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use anyhow::{Error, Result};
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `environment::Environment`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use environment::Environment;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ExpLiteralValue` and `Expr`
[INFO] [stdout]  --> src/interpreter.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     expr::{ExpLiteralValue, Expr},
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/main.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use anyhow::{Error, Result};
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `environment::Environment`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use environment::Environment;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ExpLiteralValue` and `Expr`
[INFO] [stdout]  --> src/interpreter.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     expr::{ExpLiteralValue, Expr},
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/expr.rs:25:44
[INFO] [stdout]    |
[INFO] [stdout] 25 |             ExpLiteralValue::FunctionValue(f) => todo!(),
[INFO] [stdout]    |                                            ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/expr.rs:25:44
[INFO] [stdout]    |
[INFO] [stdout] 25 |             ExpLiteralValue::FunctionValue(f) => todo!(),
[INFO] [stdout]    |                                            ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paren`
[INFO] [stdout]    --> src/expr.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 paren,
[INFO] [stdout]     |                 ^^^^^ help: try ignoring the field: `paren: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paren`
[INFO] [stdout]    --> src/expr.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 paren,
[INFO] [stdout]     |                 ^^^^^ help: try ignoring the field: `paren: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/expr.rs:288:13
[INFO] [stdout]     |
[INFO] [stdout] 288 |             _ => todo!("Implement evaluation for {:?}", self.to_string()),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/expr.rs:288:13
[INFO] [stdout]     |
[INFO] [stdout] 155 | /             Expr::Call {
[INFO] [stdout] 156 | |                 callee,
[INFO] [stdout] 157 | |                 paren,
[INFO] [stdout] 158 | |                 arguments,
[INFO] [stdout] 159 | |             } => {
[INFO] [stdout]     | |_____________- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 171 |               Expr::Variable { name } => match name.lexeme.as_str() {
[INFO] [stdout]     |               ----------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 184 |               Expr::Assignment { name, value } => {
[INFO] [stdout]     |               -------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 189 |               Expr::Literal { value } => Ok(value.clone()),
[INFO] [stdout]     |               ----------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 288 |               _ => todo!("Implement evaluation for {:?}", self.to_string()),
[INFO] [stdout]     |               ^ ...and 3 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/expr.rs:288:13
[INFO] [stdout]     |
[INFO] [stdout] 288 |             _ => todo!("Implement evaluation for {:?}", self.to_string()),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/expr.rs:288:13
[INFO] [stdout]     |
[INFO] [stdout] 155 | /             Expr::Call {
[INFO] [stdout] 156 | |                 callee,
[INFO] [stdout] 157 | |                 paren,
[INFO] [stdout] 158 | |                 arguments,
[INFO] [stdout] 159 | |             } => {
[INFO] [stdout]     | |_____________- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 171 |               Expr::Variable { name } => match name.lexeme.as_str() {
[INFO] [stdout]     |               ----------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 184 |               Expr::Assignment { name, value } => {
[INFO] [stdout]     |               -------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 189 |               Expr::Literal { value } => Ok(value.clone()),
[INFO] [stdout]     |               ----------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 288 |               _ => todo!("Implement evaluation for {:?}", self.to_string()),
[INFO] [stdout]     |               ^ ...and 3 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paren`
[INFO] [stdout]    --> src/expr.rs:157:17
[INFO] [stdout]     |
[INFO] [stdout] 157 |                 paren,
[INFO] [stdout]     |                 ^^^^^ help: try ignoring the field: `paren: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paren`
[INFO] [stdout]    --> src/expr.rs:157:17
[INFO] [stdout]     |
[INFO] [stdout] 157 |                 paren,
[INFO] [stdout]     |                 ^^^^^ help: try ignoring the field: `paren: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Assignment` is never constructed
[INFO] [stdout]    --> src/expr.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 86  | pub enum Expr {
[INFO] [stdout]     |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 105 |     Assignment {
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `IntValue` and `Identifier` are never constructed
[INFO] [stdout]    --> src/lexer.rs:235:5
[INFO] [stdout]     |
[INFO] [stdout] 234 | pub enum LiteralValue {
[INFO] [stdout]     |          ------------ variants in this enum
[INFO] [stdout] 235 |     IntValue(i64),
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 238 |     Identifier(String),
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LiteralValue` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Assignment` is never constructed
[INFO] [stdout]    --> src/expr.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 86  | pub enum Expr {
[INFO] [stdout]     |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 105 |     Assignment {
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `IntValue` and `Identifier` are never constructed
[INFO] [stdout]    --> src/lexer.rs:235:5
[INFO] [stdout]     |
[INFO] [stdout] 234 | pub enum LiteralValue {
[INFO] [stdout]     |          ------------ variants in this enum
[INFO] [stdout] 235 |     IntValue(i64),
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 238 |     Identifier(String),
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LiteralValue` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_string` is never used
[INFO] [stdout]    --> src/lexer.rs:270:12
[INFO] [stdout]     |
[INFO] [stdout] 255 | impl Token {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 270 |     pub fn to_string(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_string` is never used
[INFO] [stdout]    --> src/lexer.rs:270:12
[INFO] [stdout]     |
[INFO] [stdout] 255 | impl Token {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 270 |     pub fn to_string(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `And` is never constructed
[INFO] [stdout]    --> src/lexer.rs:303:5
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub enum TokenType {
[INFO] [stdout]     |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 303 |     And,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TokenType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Primary` is never constructed
[INFO] [stdout]   --> src/parser.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | enum Precedence {
[INFO] [stdout]    |      ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 18 |     Primary,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Precedence` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lexer.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             self.lex_token();
[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] 25 |             let _ = self.lex_token();
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `And` is never constructed
[INFO] [stdout]    --> src/lexer.rs:303:5
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub enum TokenType {
[INFO] [stdout]     |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 303 |     And,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TokenType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lexer.rs:94:21
[INFO] [stdout]    |
[INFO] [stdout] 94 |                     self.number();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 94 |                     let _ = self.number();
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lexer.rs:96:21
[INFO] [stdout]    |
[INFO] [stdout] 96 |                     self.identifier();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 96 |                     let _ = self.identifier();
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Primary` is never constructed
[INFO] [stdout]   --> src/parser.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | enum Precedence {
[INFO] [stdout]    |      ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 18 |     Primary,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Precedence` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lexer.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             self.lex_token();
[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] 25 |             let _ = self.lex_token();
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lexer.rs:94:21
[INFO] [stdout]    |
[INFO] [stdout] 94 |                     self.number();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 94 |                     let _ = self.number();
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lexer.rs:96:21
[INFO] [stdout]    |
[INFO] [stdout] 96 |                     self.identifier();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 96 |                     let _ = self.identifier();
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not parse/generate dep info at: /opt/rustwide/target/debug/deps/malilang-7abb4ebeac86336e.d
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to write `/opt/rustwide/target/debug/.fingerprint/malilang-7abb4ebeac86336e/dep-test-bin-malilang`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not parse/generate dep info at: /opt/rustwide/target/debug/deps/malilang-8a98f4079247b38d.d
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to write `/opt/rustwide/target/debug/.fingerprint/malilang-8a98f4079247b38d/dep-bin-malilang`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "e585f5a7d163954434f18264245ea3074428ca8e131b7e166176869eccc7c728", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e585f5a7d163954434f18264245ea3074428ca8e131b7e166176869eccc7c728", kill_on_drop: false }`
[INFO] [stdout] e585f5a7d163954434f18264245ea3074428ca8e131b7e166176869eccc7c728
