[INFO] cloning repository https://github.com/thevaibhav-dixit/lox-ast
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thevaibhav-dixit/lox-ast" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthevaibhav-dixit%2Flox-ast", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthevaibhav-dixit%2Flox-ast'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] abff546dfceb23db4a867325bf711d45eec11a30
[INFO] checking thevaibhav-dixit/lox-ast against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthevaibhav-dixit%2Flox-ast" "/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/thevaibhav-dixit/lox-ast on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thevaibhav-dixit/lox-ast
[INFO] finished tweaking git repo https://github.com/thevaibhav-dixit/lox-ast
[INFO] tweaked toml for git repo https://github.com/thevaibhav-dixit/lox-ast written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/thevaibhav-dixit/lox-ast 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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking thevaibhav-dixit/lox-ast against try#57fe1b734d9ff1c8a92bda60b85506b9648158d3 for pr-123752
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthevaibhav-dixit%2Flox-ast" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thevaibhav-dixit/lox-ast on toolchain 57fe1b734d9ff1c8a92bda60b85506b9648158d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thevaibhav-dixit/lox-ast
[INFO] finished tweaking git repo https://github.com/thevaibhav-dixit/lox-ast
[INFO] tweaked toml for git repo https://github.com/thevaibhav-dixit/lox-ast written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/thevaibhav-dixit/lox-ast 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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d8e851af989ff65b0ddc7bb0552e3a264493fa395baa18e86de9ca04eb47c28
[INFO] running `Command { std: "docker" "start" "-a" "0d8e851af989ff65b0ddc7bb0552e3a264493fa395baa18e86de9ca04eb47c28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d8e851af989ff65b0ddc7bb0552e3a264493fa395baa18e86de9ca04eb47c28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d8e851af989ff65b0ddc7bb0552e3a264493fa395baa18e86de9ca04eb47c28", kill_on_drop: false }`
[INFO] [stdout] 0d8e851af989ff65b0ddc7bb0552e3a264493fa395baa18e86de9ca04eb47c28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 632a01a4c5af993919bd9c4e79c52f787fa314672707be3c8a9bc279030d2566
[INFO] running `Command { std: "docker" "start" "-a" "632a01a4c5af993919bd9c4e79c52f787fa314672707be3c8a9bc279030d2566", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]     Checking lox-ast v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `token_type`, `lexeme`, `literal`, and `line` are never read
[INFO] [stdout]  --> src/token.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Token {
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 6 |     token_type: TokenType,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 7 |     lexeme: String,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 8 |     literal: Option<Object>,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 9 |     line: u32,
[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: fields `source`, `tokens`, `start`, `current`, and `line` are never read
[INFO] [stdout]   --> src/scanner.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct Scanner {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 7  |     source: Vec<char>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 8  |     tokens: Vec<Token>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 9  |     start: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 10 |     current: u32,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 11 |     line: u32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/scanner.rs:25:8
[INFO] [stdout]     |
[INFO] [stdout] 14  | impl Scanner {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 25  |     fn scan_tokens(&mut self) -> Result<&Vec<Token>, LoxError> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35  |     fn is_at_end(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39  |     fn scan_token(&mut self) -> Result<(), LoxError> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 98  |     fn peek(&mut self) -> char {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     fn identifier(&mut self) -> Result<Token, LoxError> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |     fn string(&mut self) -> Result<Token, LoxError> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 153 |     fn number(&mut self) -> Result<Token, LoxError> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 |     fn peek_next(&self) -> char {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 |     fn match_char(&mut self, expected: char) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 |     fn make_token(&mut self, token_type: TokenType, literal: Option<Object>) -> Token {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 196 |     fn advance(&mut self) -> char {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `token_type`, `lexeme`, `literal`, and `line` are never read
[INFO] [stdout]  --> src/token.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Token {
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 6 |     token_type: TokenType,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 7 |     lexeme: String,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 8 |     literal: Option<Object>,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 9 |     line: u32,
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.35s
[INFO] running `Command { std: "docker" "inspect" "632a01a4c5af993919bd9c4e79c52f787fa314672707be3c8a9bc279030d2566", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "632a01a4c5af993919bd9c4e79c52f787fa314672707be3c8a9bc279030d2566", kill_on_drop: false }`
[INFO] [stdout] 632a01a4c5af993919bd9c4e79c52f787fa314672707be3c8a9bc279030d2566
