[INFO] cloning repository https://github.com/nawarian/rusph
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nawarian/rusph" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnawarian%2Frusph", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnawarian%2Frusph'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 63e6d73cad8530a0f08073606370303d4fd06f62
[INFO] checking nawarian/rusph against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnawarian%2Frusph" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nawarian/rusph on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nawarian/rusph
[INFO] finished tweaking git repo https://github.com/nawarian/rusph
[INFO] tweaked toml for git repo https://github.com/nawarian/rusph written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/nawarian/rusph already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aac69b885e0dd1050bc8f5d91de864c5b406d78f22d20fc60f1e703353884ad0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "aac69b885e0dd1050bc8f5d91de864c5b406d78f22d20fc60f1e703353884ad0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aac69b885e0dd1050bc8f5d91de864c5b406d78f22d20fc60f1e703353884ad0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aac69b885e0dd1050bc8f5d91de864c5b406d78f22d20fc60f1e703353884ad0", kill_on_drop: false }`
[INFO] [stdout] aac69b885e0dd1050bc8f5d91de864c5b406d78f22d20fc60f1e703353884ad0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 507699f1f10cf612715611f749d16fb149e8993f849c092b8e9be7d4fa0311e6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "507699f1f10cf612715611f749d16fb149e8993f849c092b8e9be7d4fa0311e6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rusph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::parser::lexer::Lexer`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::parser::lexer::Lexer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::parser::lexer::Lexer`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::parser::lexer::Lexer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]  --> src/interpreter/mod.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn interpret(code: &str) -> String {
[INFO] [stdout]   |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Illegal`
[INFO] [stdout]  --> src/parser/lexer/tokens.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Illegal,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EndOfFile`
[INFO] [stdout]  --> src/parser/lexer/tokens.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     EndOfFile,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Variable`
[INFO] [stdout]  --> src/parser/lexer/tokens.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Variable(String),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LNumber`
[INFO] [stdout]  --> src/parser/lexer/tokens.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     LNumber(String),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Assignment`
[INFO] [stdout]   --> src/parser/lexer/tokens.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Assignment,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Plus`
[INFO] [stdout]   --> src/parser/lexer/tokens.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Plus,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Minus`
[INFO] [stdout]   --> src/parser/lexer/tokens.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Minus,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Slash`
[INFO] [stdout]   --> src/parser/lexer/tokens.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Slash,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Asterisk`
[INFO] [stdout]   --> src/parser/lexer/tokens.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Asterisk,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Percentage`
[INFO] [stdout]   --> src/parser/lexer/tokens.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Percentage,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Semicolon`
[INFO] [stdout]   --> src/parser/lexer/tokens.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Semicolon,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Whitespace`
[INFO] [stdout]   --> src/parser/lexer/tokens.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     Whitespace,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Lexer`
[INFO] [stdout]  --> src/parser/lexer/mod.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Lexer<'a> {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/parser/lexer/mod.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(code: &str) -> Lexer {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_char`
[INFO] [stdout]   --> src/parser/lexer/mod.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn next_char(&mut self) -> Option<char> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_letter`
[INFO] [stdout]   --> src/parser/lexer/mod.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn is_letter(&self, ch: char) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek_char`
[INFO] [stdout]   --> src/parser/lexer/mod.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn peek_char(&mut self) -> Option<&char> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek_is_letter`
[INFO] [stdout]   --> src/parser/lexer/mod.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn peek_is_letter(&mut self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_number`
[INFO] [stdout]   --> src/parser/lexer/mod.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn read_number(&mut self, first_number: char) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_token`
[INFO] [stdout]   --> src/parser/lexer/mod.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn next_token(&mut self) -> Token {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Node`
[INFO] [stdout]  --> src/parser/ast/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Node {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Ast`
[INFO] [stdout]  --> src/parser/ast/mod.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Ast {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_tokens`
[INFO] [stdout]   --> src/parser/ast/mod.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn parse_tokens(_tokens: Vec<Token>) -> Ast {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Interpreter`
[INFO] [stdout]  --> src/interpreter/mod.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Interpreter {}
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `interpret`
[INFO] [stdout]  --> src/interpreter/mod.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn interpret(code: &str) -> String {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]  --> src/interpreter/mod.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn interpret(code: &str) -> String {
[INFO] [stdout]   |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Node`
[INFO] [stdout]  --> src/parser/ast/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Node {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Ast`
[INFO] [stdout]  --> src/parser/ast/mod.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Ast {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_tokens`
[INFO] [stdout]   --> src/parser/ast/mod.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn parse_tokens(_tokens: Vec<Token>) -> Ast {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `Command { std: "docker" "inspect" "507699f1f10cf612715611f749d16fb149e8993f849c092b8e9be7d4fa0311e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "507699f1f10cf612715611f749d16fb149e8993f849c092b8e9be7d4fa0311e6", kill_on_drop: false }`
[INFO] [stdout] 507699f1f10cf612715611f749d16fb149e8993f849c092b8e9be7d4fa0311e6