[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] 6f89be78f1f7df00612c6f33ff6ee41139a8153e
[INFO] testing ethanae/rlox against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethanae%2Frlox" "/workspace/builds/worker-83/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-83/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ethanae/rlox on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-83/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-2022-04-10" "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-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4dde77faa8e7319a482e6917cfab95adcaae26b0a1dba190a1d8d75feeab61bc
[INFO] running `Command { std: "docker" "start" "-a" "4dde77faa8e7319a482e6917cfab95adcaae26b0a1dba190a1d8d75feeab61bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4dde77faa8e7319a482e6917cfab95adcaae26b0a1dba190a1d8d75feeab61bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dde77faa8e7319a482e6917cfab95adcaae26b0a1dba190a1d8d75feeab61bc", kill_on_drop: false }`
[INFO] [stdout] 4dde77faa8e7319a482e6917cfab95adcaae26b0a1dba190a1d8d75feeab61bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2c9013aa7247941b4b7d2045894c68b0d521d058f4f70958482cdfaa35bb384
[INFO] running `Command { std: "docker" "start" "-a" "e2c9013aa7247941b4b7d2045894c68b0d521d058f4f70958482cdfaa35bb384", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling string-builder v0.2.0
[INFO] [stderr]    Compiling rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `traits::RecursiveDescentParser`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use traits::RecursiveDescentParser;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `RecursiveDescentParser` in `traits`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `parse` found for struct `Parser` in the current scope
[INFO] [stdout]   --> src/main.rs:68:42
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let ast_string = Ast {}.to_string(&p.parse());
[INFO] [stdout]    |                                          ^^^^^ method not found in `Parser`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/parser.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Parser {
[INFO] [stdout]    | ----------------- method `parse` not found for this
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/traits.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn parse(&self) -> Vec<Statement>;
[INFO] [stdout]    |        ----- the method is available for `Parser` here
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 1  | use crate::traits::LoxParser;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rlox` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "e2c9013aa7247941b4b7d2045894c68b0d521d058f4f70958482cdfaa35bb384", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2c9013aa7247941b4b7d2045894c68b0d521d058f4f70958482cdfaa35bb384", kill_on_drop: false }`
[INFO] [stdout] e2c9013aa7247941b4b7d2045894c68b0d521d058f4f70958482cdfaa35bb384