[INFO] cloning repository https://github.com/JamieBShaw/interpreter_in_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JamieBShaw/interpreter_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamieBShaw%2Finterpreter_in_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamieBShaw%2Finterpreter_in_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3773a30577e22d5f5800d4df1aa83a713470edda
[INFO] checking JamieBShaw/interpreter_in_rust against try#09ea730c380b8b9acb96ff87b724c45df920f793 for pr-134272
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamieBShaw%2Finterpreter_in_rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JamieBShaw/interpreter_in_rust on toolchain 09ea730c380b8b9acb96ff87b724c45df920f793
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09ea730c380b8b9acb96ff87b724c45df920f793" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JamieBShaw/interpreter_in_rust
[INFO] finished tweaking git repo https://github.com/JamieBShaw/interpreter_in_rust
[INFO] tweaked toml for git repo https://github.com/JamieBShaw/interpreter_in_rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/JamieBShaw/interpreter_in_rust 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" "+09ea730c380b8b9acb96ff87b724c45df920f793" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking JamieBShaw/interpreter_in_rust against try#09ea730c380b8b9acb96ff87b724c45df920f793 for pr-134272
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamieBShaw%2Finterpreter_in_rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JamieBShaw/interpreter_in_rust on toolchain 09ea730c380b8b9acb96ff87b724c45df920f793
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09ea730c380b8b9acb96ff87b724c45df920f793" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JamieBShaw/interpreter_in_rust
[INFO] finished tweaking git repo https://github.com/JamieBShaw/interpreter_in_rust
[INFO] tweaked toml for git repo https://github.com/JamieBShaw/interpreter_in_rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/JamieBShaw/interpreter_in_rust 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" "+09ea730c380b8b9acb96ff87b724c45df920f793" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+09ea730c380b8b9acb96ff87b724c45df920f793" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 876eebc9b4664d1cfd9483fb34f01bdb2f7904f8e8ad7f9be5e89aa63a75e94f
[INFO] running `Command { std: "docker" "start" "-a" "876eebc9b4664d1cfd9483fb34f01bdb2f7904f8e8ad7f9be5e89aa63a75e94f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "876eebc9b4664d1cfd9483fb34f01bdb2f7904f8e8ad7f9be5e89aa63a75e94f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "876eebc9b4664d1cfd9483fb34f01bdb2f7904f8e8ad7f9be5e89aa63a75e94f", kill_on_drop: false }`
[INFO] [stdout] 876eebc9b4664d1cfd9483fb34f01bdb2f7904f8e8ad7f9be5e89aa63a75e94f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+09ea730c380b8b9acb96ff87b724c45df920f793" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5dfe7118760674f5bd146c2039d7255a3e97c629f7b9b24f930233e4d3ef6a0d
[INFO] running `Command { std: "docker" "start" "-a" "5dfe7118760674f5bd146c2039d7255a3e97c629f7b9b24f930233e4d3ef6a0d", kill_on_drop: false }`
[INFO] [stderr]     Checking interpreter_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/lexer.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub enum Token {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 5  |     ILLEGAL,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 6  |     EOF,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 7  |     // Identifiers + literals
[INFO] [stdout] 8  |     IDENT(String),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 9  |     INT(String),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     ASSIGN,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 11 |     PLUS,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     MINUS,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 13 |     BANG,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     ASTERISK,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 15 |     SLASH,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 16 |     LT,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 17 |     GT,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 18 |     EQUAL,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 19 |     NOTEQUAL,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 20 |     // Delimiters
[INFO] [stdout] 21 |     COMMA,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 22 |     SEMICOLON,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 23 |     LPAREN,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 24 |     RPAREN,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 25 |     LBRACE,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 26 |     RBRACE,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 27 |     // Keywords
[INFO] [stdout] 28 |     FUNCTION,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 29 |     LET,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 30 |     TRUE,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 31 |     FALSE,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 32 |     IF,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 33 |     ELSE,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 34 |     RETURN,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Lexer` is never constructed
[INFO] [stdout]   --> src/lexer.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | struct Lexer {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Lexer` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/lexer.rs:80:8
[INFO] [stdout]     |
[INFO] [stdout] 79  | impl Lexer {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout] 80  |     fn new(input: String) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 92  |     fn read_char(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     fn next_token(&mut self) -> Token {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     fn peek_char(&self) -> u8 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 164 |     fn read_ident(&mut self) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     fn read_int(&mut self) -> String {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 180 |     fn skip_whitespace(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ILLEGAL` is never constructed
[INFO] [stdout]  --> src/lexer.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Token {
[INFO] [stdout]   |          ----- variant in this enum
[INFO] [stdout] 5 |     ILLEGAL,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "5dfe7118760674f5bd146c2039d7255a3e97c629f7b9b24f930233e4d3ef6a0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dfe7118760674f5bd146c2039d7255a3e97c629f7b9b24f930233e4d3ef6a0d", kill_on_drop: false }`
[INFO] [stdout] 5dfe7118760674f5bd146c2039d7255a3e97c629f7b9b24f930233e4d3ef6a0d