[INFO] cloning repository https://github.com/ethanae/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ethanae/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethanae%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethanae%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d36bd6d16032bebcf5f62a6727d48c9e570d98fd
[INFO] checking ethanae/rlox against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethanae%2Frlox" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ethanae/rlox on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ethanae/rlox
[INFO] finished tweaking git repo https://github.com/ethanae/rlox
[INFO] tweaked toml for git repo https://github.com/ethanae/rlox written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/ethanae/rlox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 92cc2899ff77bbdc5d06ff4d38d91784784cb0d539b85b791a806ce5f3d45b9a
[INFO] running `Command { std: "docker" "start" "-a" "92cc2899ff77bbdc5d06ff4d38d91784784cb0d539b85b791a806ce5f3d45b9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92cc2899ff77bbdc5d06ff4d38d91784784cb0d539b85b791a806ce5f3d45b9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92cc2899ff77bbdc5d06ff4d38d91784784cb0d539b85b791a806ce5f3d45b9a", kill_on_drop: false }`
[INFO] [stdout] 92cc2899ff77bbdc5d06ff4d38d91784784cb0d539b85b791a806ce5f3d45b9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b72721f7ec78c4b4d8a663075864ed67e87f151ad786364ff4dbd3d698f9cf6f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b72721f7ec78c4b4d8a663075864ed67e87f151ad786364ff4dbd3d698f9cf6f", kill_on_drop: false }`
[INFO] [stderr]     Checking rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `lexer`
[INFO] [stdout]   --> src/main.rs:49:18
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let tokens = lexer::scan_tokens(input);
[INFO] [stdout]    |                  ^^^^^ use of undeclared crate or module `lexer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `lexer`
[INFO] [stdout]   --> src/main.rs:49:18
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let tokens = lexer::scan_tokens(input);
[INFO] [stdout]    |                  ^^^^^ use of undeclared crate or module `lexer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/scanner.rs:34:14
[INFO] [stdout]    |
[INFO] [stdout] 31 |   fn scan_token(&self) -> Token {
[INFO] [stdout]    |                           ----- expected `Token` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 34 |       '(' => self.add_token(TokenType::LeftParen),
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `Token`, found `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rlox`
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/scanner.rs:34:14
[INFO] [stdout]    |
[INFO] [stdout] 31 |   fn scan_token(&self) -> Token {
[INFO] [stdout]    |                           ----- expected `Token` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 34 |       '(' => self.add_token(TokenType::LeftParen),
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `Token`, found `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] Some errors have detailed explanations: E0308, E0433.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b72721f7ec78c4b4d8a663075864ed67e87f151ad786364ff4dbd3d698f9cf6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b72721f7ec78c4b4d8a663075864ed67e87f151ad786364ff4dbd3d698f9cf6f", kill_on_drop: false }`
[INFO] [stdout] b72721f7ec78c4b4d8a663075864ed67e87f151ad786364ff4dbd3d698f9cf6f