[INFO] cloning repository https://github.com/CairBin/lox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CairBin/lox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCairBin%2Flox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCairBin%2Flox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff4d6b93ab89fcca1bf2e2cb07a227b0b86073c3
[INFO] checking CairBin/lox against master#04ff05c9c0cfbca33115c5f1b8bb20a66a54b799 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCairBin%2Flox" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/CairBin/lox
[INFO] finished tweaking git repo https://github.com/CairBin/lox
[INFO] tweaked toml for git repo https://github.com/CairBin/lox written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/CairBin/lox on toolchain 04ff05c9c0cfbca33115c5f1b8bb20a66a54b799
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/CairBin/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" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43ff581cab2665503b7002733ab5d8d5638511d4b4f6c745d1a2c494e3b5e22c
[INFO] running `Command { std: "docker" "start" "-a" "43ff581cab2665503b7002733ab5d8d5638511d4b4f6c745d1a2c494e3b5e22c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43ff581cab2665503b7002733ab5d8d5638511d4b4f6c745d1a2c494e3b5e22c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43ff581cab2665503b7002733ab5d8d5638511d4b4f6c745d1a2c494e3b5e22c", kill_on_drop: false }`
[INFO] [stdout] 43ff581cab2665503b7002733ab5d8d5638511d4b4f6c745d1a2c494e3b5e22c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3a1de9ef9df7ecd364fdb5450f4156dbbcf68b04da1311a1f69da2bce11812f
[INFO] running `Command { std: "docker" "start" "-a" "c3a1de9ef9df7ecd364fdb5450f4156dbbcf68b04da1311a1f69da2bce11812f", kill_on_drop: false }`
[INFO] [stderr]     Checking lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0423]: expected value, found macro `line`
[INFO] [stdout]   --> src/scanner.rs:31:76
[INFO] [stdout]    |
[INFO] [stdout] 31 |         self.tokens.push(Token::new(TokenType::Keyword(Keywords::Eof), "", line));
[INFO] [stdout]    |                                                                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: you might have meant to use the available field
[INFO] [stdout]    |
[INFO] [stdout] 31 |         self.tokens.push(Token::new(TokenType::Keyword(Keywords::Eof), "", self.line));
[INFO] [stdout]    |                                                                            +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Result` and `Write`
[INFO] [stdout]  --> src/main.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{Result, Write};
[INFO] [stdout]   |               ^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/token.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0423]: expected value, found macro `line`
[INFO] [stdout]   --> src/scanner.rs:31:76
[INFO] [stdout]    |
[INFO] [stdout] 31 |         self.tokens.push(Token::new(TokenType::Keyword(Keywords::Eof), "", line));
[INFO] [stdout]    |                                                                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: you might have meant to use the available field
[INFO] [stdout]    |
[INFO] [stdout] 31 |         self.tokens.push(Token::new(TokenType::Keyword(Keywords::Eof), "", self.line));
[INFO] [stdout]    |                                                                            +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Result` and `Write`
[INFO] [stdout]  --> src/main.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{Result, Write};
[INFO] [stdout]   |               ^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/token.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/lox.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 43 | /         loop{
[INFO] [stdout] 44 | |             print!("> ");
[INFO] [stdout] 45 | |             std::io::stdout().flush().unwrap();
[INFO] [stdout] 46 | |             let mut line = String::new();
[INFO] [stdout] ...  |
[INFO] [stdout] 49 | |             self.had_error = false;
[INFO] [stdout] 50 | |         }
[INFO] [stdout]    | |_________- any code following this expression is unreachable
[INFO] [stdout] 51 |           Ok(())
[INFO] [stdout]    |           ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `ScannerError`
[INFO] [stdout]   --> src/scanner.rs:57:51
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let tok = TokenType::form_char(c.unwrap())?;
[INFO] [stdout]    |                   --------------------------------^ the trait `From<TokenError>` is not implemented for `ScannerError`
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   this can't be annotated with `?` because it has type `Result<_, TokenError>`
[INFO] [stdout]    |
[INFO] [stdout] note: `ScannerError` needs to implement `From<TokenError>`
[INFO] [stdout]   --> src/scanner.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub enum ScannerError{
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: alternatively, `TokenError` needs to implement `Into<ScannerError>`
[INFO] [stdout]   --> src/token.rs:77:1
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub enum TokenError{
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/lox.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |             Err(e)=>{
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `source`
[INFO] [stdout]   --> src/lox.rs:36:27
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn run(&mut self, source:&str)->Result<()>{
[INFO] [stdout]    |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0423.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/lox.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 43 | /         loop{
[INFO] [stdout] 44 | |             print!("> ");
[INFO] [stdout] 45 | |             std::io::stdout().flush().unwrap();
[INFO] [stdout] 46 | |             let mut line = String::new();
[INFO] [stdout] ...  |
[INFO] [stdout] 49 | |             self.had_error = false;
[INFO] [stdout] 50 | |         }
[INFO] [stdout]    | |_________- any code following this expression is unreachable
[INFO] [stdout] 51 |           Ok(())
[INFO] [stdout]    |           ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lox` (bin "lox") due to 2 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `ScannerError`
[INFO] [stdout]   --> src/scanner.rs:57:51
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let tok = TokenType::form_char(c.unwrap())?;
[INFO] [stdout]    |                   --------------------------------^ the trait `From<TokenError>` is not implemented for `ScannerError`
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   this can't be annotated with `?` because it has type `Result<_, TokenError>`
[INFO] [stdout]    |
[INFO] [stdout] note: `ScannerError` needs to implement `From<TokenError>`
[INFO] [stdout]   --> src/scanner.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub enum ScannerError{
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: alternatively, `TokenError` needs to implement `Into<ScannerError>`
[INFO] [stdout]   --> src/token.rs:77:1
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub enum TokenError{
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/lox.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |             Err(e)=>{
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `source`
[INFO] [stdout]   --> src/lox.rs:36:27
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn run(&mut self, source:&str)->Result<()>{
[INFO] [stdout]    |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0423.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lox` (bin "lox" test) due to 2 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "c3a1de9ef9df7ecd364fdb5450f4156dbbcf68b04da1311a1f69da2bce11812f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3a1de9ef9df7ecd364fdb5450f4156dbbcf68b04da1311a1f69da2bce11812f", kill_on_drop: false }`
[INFO] [stdout] c3a1de9ef9df7ecd364fdb5450f4156dbbcf68b04da1311a1f69da2bce11812f
