[INFO] cloning repository https://github.com/jeramyRR/play_interpreter
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeramyRR/play_interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjeramyRR%2Fplay_interpreter"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjeramyRR%2Fplay_interpreter'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 147c831b380dbc893a387fc83728a5206afc012c
[INFO] testing jeramyRR/play_interpreter against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjeramyRR%2Fplay_interpreter" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeramyRR/play_interpreter on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jeramyRR/play_interpreter
[INFO] finished tweaking git repo https://github.com/jeramyRR/play_interpreter
[INFO] tweaked toml for git repo https://github.com/jeramyRR/play_interpreter written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/jeramyRR/play_interpreter already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d853e9c574a381340952953edacc66f4a0497fa00f3bb166285948bfb2fd68f6
[INFO] running `"docker" "start" "-a" "d853e9c574a381340952953edacc66f4a0497fa00f3bb166285948bfb2fd68f6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling play_interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0599]: no method named `read_char` found for struct `lexer::Lexer` in the current scope
[INFO] [stderr]   --> src/main.rs:12:11
[INFO] [stderr]    |
[INFO] [stderr] 12 |     lexer.read_char();
[INFO] [stderr]    |           ^^^^^^^^^ method not found in `lexer::Lexer`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/lexer.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | pub struct Lexer {
[INFO] [stderr]    | ---------------- method `read_char` not found for this
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `play_interpreter`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "d853e9c574a381340952953edacc66f4a0497fa00f3bb166285948bfb2fd68f6"`
[INFO] running `"docker" "rm" "-f" "d853e9c574a381340952953edacc66f4a0497fa00f3bb166285948bfb2fd68f6"`
[INFO] [stdout] d853e9c574a381340952953edacc66f4a0497fa00f3bb166285948bfb2fd68f6