[INFO] cloning repository https://github.com/jeramyRR/play_interpreter
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjeramyRR%2Fplay_interpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 147c831b380dbc893a387fc83728a5206afc012c
[INFO] checking jeramyRR/play_interpreter against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjeramyRR%2Fplay_interpreter" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeramyRR/play_interpreter on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-2/source/Cargo.toml
[INFO] crate git repo https://github.com/jeramyRR/play_interpreter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 214b0e5ac2611c5a9d71c7057e4ac0a4875b5c20d967e9c1adadc1fcfd48f21f
[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" "214b0e5ac2611c5a9d71c7057e4ac0a4875b5c20d967e9c1adadc1fcfd48f21f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "214b0e5ac2611c5a9d71c7057e4ac0a4875b5c20d967e9c1adadc1fcfd48f21f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "214b0e5ac2611c5a9d71c7057e4ac0a4875b5c20d967e9c1adadc1fcfd48f21f", kill_on_drop: false }`
[INFO] [stdout] 214b0e5ac2611c5a9d71c7057e4ac0a4875b5c20d967e9c1adadc1fcfd48f21f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79f2e27e06d078c8962cc2fa0e3d412d58d5704d66458b85a18765ece7d31603
[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" "79f2e27e06d078c8962cc2fa0e3d412d58d5704d66458b85a18765ece7d31603", kill_on_drop: false }`
[INFO] [stderr]     Checking play_interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `read_char` found for struct `Lexer` in the current scope
[INFO] [stdout]   --> src/main.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 |     lexer.read_char();
[INFO] [stdout]    |           ^^^^^^^^^ method not found in `Lexer`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lexer.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub struct Lexer {
[INFO] [stdout]    | ---------------- method `read_char` not found for this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `play_interpreter`
[INFO] [stdout] error[E0599]: no method named `read_char` found for struct `Lexer` in the current scope
[INFO] [stdout]   --> src/main.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 |     lexer.read_char();
[INFO] [stdout]    |           ^^^^^^^^^ method not found in `Lexer`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lexer.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub struct Lexer {
[INFO] [stdout]    | ---------------- method `read_char` not found for this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "79f2e27e06d078c8962cc2fa0e3d412d58d5704d66458b85a18765ece7d31603", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79f2e27e06d078c8962cc2fa0e3d412d58d5704d66458b85a18765ece7d31603", kill_on_drop: false }`
[INFO] [stdout] 79f2e27e06d078c8962cc2fa0e3d412d58d5704d66458b85a18765ece7d31603