[INFO] cloning repository https://github.com/ikws4/juice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ikws4/juice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikws4%2Fjuice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikws4%2Fjuice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6353d9f50332d8066f1991e5755ba687e55bb6c1
[INFO] checking ikws4/juice against try#0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef for pr-147859
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikws4%2Fjuice" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ikws4/juice
[INFO] finished tweaking git repo https://github.com/ikws4/juice
[INFO] tweaked toml for git repo https://github.com/ikws4/juice written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ikws4/juice on toolchain 0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ikws4/juice 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" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54c9a67c27464204032bbdd1fe6166321a8c38af7e9bfd6f071f62d460642a95
[INFO] running `Command { std: "docker" "start" "-a" "54c9a67c27464204032bbdd1fe6166321a8c38af7e9bfd6f071f62d460642a95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54c9a67c27464204032bbdd1fe6166321a8c38af7e9bfd6f071f62d460642a95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54c9a67c27464204032bbdd1fe6166321a8c38af7e9bfd6f071f62d460642a95", kill_on_drop: false }`
[INFO] [stdout] 54c9a67c27464204032bbdd1fe6166321a8c38af7e9bfd6f071f62d460642a95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b723df7d8fdf4f0866edc2347c09057a1107aaf14b62c8c581189cca1a1fa82
[INFO] running `Command { std: "docker" "start" "-a" "8b723df7d8fdf4f0866edc2347c09057a1107aaf14b62c8c581189cca1a1fa82", kill_on_drop: false }`
[INFO] [stderr]     Checking juice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Lexer` is never constructed
[INFO] [stdout]  --> src/lexer.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Lexer {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/lexer.rs:11:12
[INFO] [stdout]     |
[INFO] [stdout]  10 | impl Lexer {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout]  11 |     pub fn new(input: &str) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  20 |     pub fn lex(&mut self) -> Vec<Token> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  33 |     pub fn read_token(&mut self) -> Token {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 113 |     fn skip_whitespace(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     fn read_number(&mut self, c: char) -> Token {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 153 |     fn read_identifier(&mut self, c: char) -> Token {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 |     fn read_comments(&mut self) -> Token {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 197 |     fn read_string(&mut self) -> Token {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 213 |     fn match_advance(&mut self, expected: char) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 223 |     fn peek(&self) -> Option<char> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 231 |     fn advance(&mut self) -> Option<char> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 248 |     fn token(&self, token_type: TokenType, lexeme: &str) -> Token {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TokenType` is never used
[INFO] [stdout]  --> src/token.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum TokenType {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Token` is never constructed
[INFO] [stdout]   --> src/token.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct Token {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `lexeme`, `line`, and `column` are never read
[INFO] [stdout]   --> src/token.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct Token {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 64 |     pub token_type: TokenType,
[INFO] [stdout] 65 |     pub lexeme: String,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 66 |     pub line: usize,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 67 |     pub column: usize,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "8b723df7d8fdf4f0866edc2347c09057a1107aaf14b62c8c581189cca1a1fa82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b723df7d8fdf4f0866edc2347c09057a1107aaf14b62c8c581189cca1a1fa82", kill_on_drop: false }`
[INFO] [stdout] 8b723df7d8fdf4f0866edc2347c09057a1107aaf14b62c8c581189cca1a1fa82
