[INFO] cloning repository https://github.com/hsolrac/lox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hsolrac/lox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsolrac%2Flox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsolrac%2Flox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 439dcf6e079512600a78b29a99f935cdcacaa4d9
[INFO] checking hsolrac/lox against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsolrac%2Flox" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hsolrac/lox
[INFO] finished tweaking git repo https://github.com/hsolrac/lox
[INFO] tweaked toml for git repo https://github.com/hsolrac/lox written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hsolrac/lox on toolchain 52995a223f2919dd3e2e427231db90a257350ded
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hsolrac/lox 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" "+52995a223f2919dd3e2e427231db90a257350ded" "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 hsolrac/lox against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsolrac%2Flox" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hsolrac/lox
[INFO] finished tweaking git repo https://github.com/hsolrac/lox
[INFO] tweaked toml for git repo https://github.com/hsolrac/lox written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hsolrac/lox on toolchain 52995a223f2919dd3e2e427231db90a257350ded
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hsolrac/lox 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" "+52995a223f2919dd3e2e427231db90a257350ded" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 797a445f8db60fdc583da2afdde7ce48c3c3c13c20e52cc36343bba91bb4dd15
[INFO] running `Command { std: "docker" "start" "797a445f8db60fdc583da2afdde7ce48c3c3c13c20e52cc36343bba91bb4dd15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "797a445f8db60fdc583da2afdde7ce48c3c3c13c20e52cc36343bba91bb4dd15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "797a445f8db60fdc583da2afdde7ce48c3c3c13c20e52cc36343bba91bb4dd15" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "797a445f8db60fdc583da2afdde7ce48c3c3c13c20e52cc36343bba91bb4dd15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "797a445f8db60fdc583da2afdde7ce48c3c3c13c20e52cc36343bba91bb4dd15" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/scanner.rs:136:13
[INFO] [stdout]     |
[INFO] [stdout] 136 |             _ => {
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/scanner.rs:136:13
[INFO] [stdout]     |
[INFO] [stdout]  72 |             '(' => self.add_token(TokenType::LeftParen),
[INFO] [stdout]     |             --- matches some of the same values
[INFO] [stdout]  73 |             ')' => self.add_token(TokenType::RightParen),
[INFO] [stdout]     |             --- matches some of the same values
[INFO] [stdout]  74 |             '{' => self.add_token(TokenType::LeftBrace),
[INFO] [stdout]     |             --- matches some of the same values
[INFO] [stdout]  75 |             '}' => self.add_token(TokenType::RightBrace),
[INFO] [stdout]     |             --- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 136 |             _ => {
[INFO] [stdout]     |             ^ ...and 16 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/scanner.rs:136:13
[INFO] [stdout]     |
[INFO] [stdout] 136 |             _ => {
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/scanner.rs:136:13
[INFO] [stdout]     |
[INFO] [stdout]  72 |             '(' => self.add_token(TokenType::LeftParen),
[INFO] [stdout]     |             --- matches some of the same values
[INFO] [stdout]  73 |             ')' => self.add_token(TokenType::RightParen),
[INFO] [stdout]     |             --- matches some of the same values
[INFO] [stdout]  74 |             '{' => self.add_token(TokenType::LeftBrace),
[INFO] [stdout]     |             --- matches some of the same values
[INFO] [stdout]  75 |             '}' => self.add_token(TokenType::RightBrace),
[INFO] [stdout]     |             --- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 136 |             _ => {
[INFO] [stdout]     |             ^ ...and 16 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `keywords` is never read
[INFO] [stdout]   --> src/scanner.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct Scanner {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     keywords: HashMap<String, TokenType>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Nil`, `True`, and `False` are never constructed
[INFO] [stdout]   --> src/token.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub enum Object {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] ...
[INFO] [stdout]  8 |     Nil,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]  9 |     True,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 10 |     False,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Object` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `line` is never read
[INFO] [stdout]   --> src/token.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Token {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 30 |     line: usize,
[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: field `keywords` is never read
[INFO] [stdout]   --> src/scanner.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct Scanner {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     keywords: HashMap<String, TokenType>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Nil`, `True`, and `False` are never constructed
[INFO] [stdout]   --> src/token.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub enum Object {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] ...
[INFO] [stdout]  8 |     Nil,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]  9 |     True,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 10 |     False,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Object` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `line` is never read
[INFO] [stdout]   --> src/token.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Token {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 30 |     line: usize,
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "797a445f8db60fdc583da2afdde7ce48c3c3c13c20e52cc36343bba91bb4dd15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "797a445f8db60fdc583da2afdde7ce48c3c3c13c20e52cc36343bba91bb4dd15", kill_on_drop: false }`
[INFO] [stdout] 797a445f8db60fdc583da2afdde7ce48c3c3c13c20e52cc36343bba91bb4dd15
