[INFO] cloning repository https://github.com/saegus4/lox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/saegus4/lox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaegus4%2Flox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaegus4%2Flox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2e13601f9a064f6b6e3c824a293abefd2c483a8e
[INFO] testing saegus4/lox against try#7af779037716ae4125ceabb429791b4cf5dd0a43 for pr-136932
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaegus4%2Flox" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/saegus4/lox on toolchain 7af779037716ae4125ceabb429791b4cf5dd0a43
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/saegus4/lox
[INFO] finished tweaking git repo https://github.com/saegus4/lox
[INFO] tweaked toml for git repo https://github.com/saegus4/lox written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/saegus4/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" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea330631170d6a9942e5a10a57e1454e75e98b343ad6d20bef509321d08d86af
[INFO] running `Command { std: "docker" "start" "-a" "ea330631170d6a9942e5a10a57e1454e75e98b343ad6d20bef509321d08d86af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea330631170d6a9942e5a10a57e1454e75e98b343ad6d20bef509321d08d86af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea330631170d6a9942e5a10a57e1454e75e98b343ad6d20bef509321d08d86af", kill_on_drop: false }`
[INFO] [stdout] ea330631170d6a9942e5a10a57e1454e75e98b343ad6d20bef509321d08d86af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 347590ccd75741744b040a8e12c9283a6faa6ab2efdc13297de918bb10154203
[INFO] running `Command { std: "docker" "start" "-a" "347590ccd75741744b040a8e12c9283a6faa6ab2efdc13297de918bb10154203", kill_on_drop: false }`
[INFO] [stderr]    Compiling jlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `LEFT_PAREN` should have an upper camel case name
[INFO] [stdout]  --> src/token_type.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     LEFT_PAREN,
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LeftParen`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `RIGHT_PAREN` should have an upper camel case name
[INFO] [stdout]  --> src/token_type.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     RIGHT_PAREN, 
[INFO] [stdout]   |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `RightParen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LEFT_BRACE` should have an upper camel case name
[INFO] [stdout]  --> src/token_type.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     LEFT_BRACE, 
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LeftBrace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `RIGHT_BRACE` should have an upper camel case name
[INFO] [stdout]  --> src/token_type.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     RIGHT_BRACE,
[INFO] [stdout]   |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `RightBrace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BANG_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token_type.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     BANG_EQUAL, 
[INFO] [stdout]    |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `BangEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `EQUAL_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token_type.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     EQUAL_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `EqualEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `GREATER_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token_type.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     GREATER_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `GreaterEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LESS_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token_type.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     LESS_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LessEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/scanner.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         match advance {
[INFO] [stdout]    |               ------- this expression has type `char`
[INFO] [stdout] 38 |             ")" => self.add_token(TokenType::LEFT_PAREN),
[INFO] [stdout]    |             ^^^ expected `char`, found `&str`
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to write a `char` literal, use single quotes
[INFO] [stdout]    |
[INFO] [stdout] 38 -             ")" => self.add_token(TokenType::LEFT_PAREN),
[INFO] [stdout] 38 +             ')' => self.add_token(TokenType::LEFT_PAREN),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/scanner.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         match advance {
[INFO] [stdout]    |               ------- this expression has type `char`
[INFO] [stdout] 38 |             ")" => self.add_token(TokenType::LEFT_PAREN),
[INFO] [stdout] 39 |             "(" => self.add_token(TokenType::RIGHT_PAREN),
[INFO] [stdout]    |             ^^^ expected `char`, found `&str`
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to write a `char` literal, use single quotes
[INFO] [stdout]    |
[INFO] [stdout] 39 -             "(" => self.add_token(TokenType::RIGHT_PAREN),
[INFO] [stdout] 39 +             '(' => self.add_token(TokenType::RIGHT_PAREN),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/scanner.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         match advance {
[INFO] [stdout]    |               ------- this expression has type `char`
[INFO] [stdout] ...
[INFO] [stdout] 40 |             "{" => self.add_token(TokenType::LEFT_BRACE),
[INFO] [stdout]    |             ^^^ expected `char`, found `&str`
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to write a `char` literal, use single quotes
[INFO] [stdout]    |
[INFO] [stdout] 40 -             "{" => self.add_token(TokenType::LEFT_BRACE),
[INFO] [stdout] 40 +             '{' => self.add_token(TokenType::LEFT_BRACE),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/scanner.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         match advance {
[INFO] [stdout]    |               ------- this expression has type `char`
[INFO] [stdout] ...
[INFO] [stdout] 41 |             "}" => self.add_token(TokenType::RIGHT_BRACE),
[INFO] [stdout]    |             ^^^ expected `char`, found `&str`
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to write a `char` literal, use single quotes
[INFO] [stdout]    |
[INFO] [stdout] 41 -             "}" => self.add_token(TokenType::RIGHT_BRACE),
[INFO] [stdout] 41 +             '}' => self.add_token(TokenType::RIGHT_BRACE),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/scanner.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         match advance {
[INFO] [stdout]    |               ------- this expression has type `char`
[INFO] [stdout] ...
[INFO] [stdout] 42 |             "," => self.add_token(TokenType::COMMA),
[INFO] [stdout]    |             ^^^ expected `char`, found `&str`
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to write a `char` literal, use single quotes
[INFO] [stdout]    |
[INFO] [stdout] 42 -             "," => self.add_token(TokenType::COMMA),
[INFO] [stdout] 42 +             ',' => self.add_token(TokenType::COMMA),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/scanner.rs:43:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         match advance {
[INFO] [stdout]    |               ------- this expression has type `char`
[INFO] [stdout] ...
[INFO] [stdout] 43 |             "." => self.add_token(TokenType::DOT),
[INFO] [stdout]    |             ^^^ expected `char`, found `&str`
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to write a `char` literal, use single quotes
[INFO] [stdout]    |
[INFO] [stdout] 43 -             "." => self.add_token(TokenType::DOT),
[INFO] [stdout] 43 +             '.' => self.add_token(TokenType::DOT),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/scanner.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         match advance {
[INFO] [stdout]    |               ------- this expression has type `char`
[INFO] [stdout] ...
[INFO] [stdout] 44 |             "+" => self.add_token(TokenType::PLUS),
[INFO] [stdout]    |             ^^^ expected `char`, found `&str`
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to write a `char` literal, use single quotes
[INFO] [stdout]    |
[INFO] [stdout] 44 -             "+" => self.add_token(TokenType::PLUS),
[INFO] [stdout] 44 +             '+' => self.add_token(TokenType::PLUS),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/scanner.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         match advance {
[INFO] [stdout]    |               ------- this expression has type `char`
[INFO] [stdout] ...
[INFO] [stdout] 45 |             ";" => self.add_token(TokenType::SEMICOLON),
[INFO] [stdout]    |             ^^^ expected `char`, found `&str`
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to write a `char` literal, use single quotes
[INFO] [stdout]    |
[INFO] [stdout] 45 -             ";" => self.add_token(TokenType::SEMICOLON),
[INFO] [stdout] 45 +             ';' => self.add_token(TokenType::SEMICOLON),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/scanner.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         match advance {
[INFO] [stdout]    |               ------- this expression has type `char`
[INFO] [stdout] ...
[INFO] [stdout] 46 |             "*" => self.add_token(TokenType::STAR),
[INFO] [stdout]    |             ^^^ expected `char`, found `&str`
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to write a `char` literal, use single quotes
[INFO] [stdout]    |
[INFO] [stdout] 46 -             "*" => self.add_token(TokenType::STAR),
[INFO] [stdout] 46 +             '*' => self.add_token(TokenType::STAR),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/scanner.rs:38:20
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn scan_token(&mut self) -> Vec<Token> {
[INFO] [stdout]    |                                 ---------- expected `Vec<Token<'_>>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 38 |             ")" => self.add_token(TokenType::LEFT_PAREN),
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Vec<Token<'_>>`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Vec<Token<'_>>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] note: method `add_token` modifies its receiver in-place
[INFO] [stdout]   --> src/scanner.rs:38:25
[INFO] [stdout]    |
[INFO] [stdout] 38 |             ")" => self.add_token(TokenType::LEFT_PAREN),
[INFO] [stdout]    |                         ^^^^^^^^^ this call modifies `self` in-place
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `contents`
[INFO] [stdout]   --> src/main.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let contents = fs::read_to_string(file);
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `had_error` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let mut had_error = false;
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_had_error` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `had_error` is never read
[INFO] [stdout]   --> src/main.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         had_error = false;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `source`
[INFO] [stdout]   --> src/main.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn run(source: &str) {
[INFO] [stdout]    |        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jlox` (bin "jlox") due to 10 previous errors; 12 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "347590ccd75741744b040a8e12c9283a6faa6ab2efdc13297de918bb10154203", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "347590ccd75741744b040a8e12c9283a6faa6ab2efdc13297de918bb10154203", kill_on_drop: false }`
[INFO] [stdout] 347590ccd75741744b040a8e12c9283a6faa6ab2efdc13297de918bb10154203