[INFO] cloning repository https://github.com/cannero/monkey_interpreter_compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cannero/monkey_interpreter_compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcannero%2Fmonkey_interpreter_compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcannero%2Fmonkey_interpreter_compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cdae8be83281df0607fbaa79ab73ce86f6066d4f
[INFO] testing cannero/monkey_interpreter_compiler against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcannero%2Fmonkey_interpreter_compiler" "/workspace/builds/worker-112/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-112/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cannero/monkey_interpreter_compiler on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cannero/monkey_interpreter_compiler
[INFO] finished tweaking git repo https://github.com/cannero/monkey_interpreter_compiler
[INFO] tweaked toml for git repo https://github.com/cannero/monkey_interpreter_compiler written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] crate git repo https://github.com/cannero/monkey_interpreter_compiler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ce69cf7311c3fc6b087cccd54284fa8292eaeec1ddf770750e06c58138137a1
[INFO] running `Command { std: "docker" "start" "-a" "8ce69cf7311c3fc6b087cccd54284fa8292eaeec1ddf770750e06c58138137a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ce69cf7311c3fc6b087cccd54284fa8292eaeec1ddf770750e06c58138137a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ce69cf7311c3fc6b087cccd54284fa8292eaeec1ddf770750e06c58138137a1", kill_on_drop: false }`
[INFO] [stdout] 8ce69cf7311c3fc6b087cccd54284fa8292eaeec1ddf770750e06c58138137a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd053fc834267aa7abdb0bb0abe48e5e9fea0e80a2719e1ac91d0d98e57c0982
[INFO] running `Command { std: "docker" "start" "-a" "bd053fc834267aa7abdb0bb0abe48e5e9fea0e80a2719e1ac91d0d98e57c0982", kill_on_drop: false }`
[INFO] [stderr]    Compiling libinterpreter v0.1.0 (/opt/rustwide/workdir/libinterpreter)
[INFO] [stderr]    Compiling repl v0.1.0 (/opt/rustwide/workdir/repl)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "bd053fc834267aa7abdb0bb0abe48e5e9fea0e80a2719e1ac91d0d98e57c0982", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd053fc834267aa7abdb0bb0abe48e5e9fea0e80a2719e1ac91d0d98e57c0982", kill_on_drop: false }`
[INFO] [stdout] bd053fc834267aa7abdb0bb0abe48e5e9fea0e80a2719e1ac91d0d98e57c0982
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fcc615400fd7a5ad1995daa9217674cc6ed81e98ead928a8765664c262ce815d
[INFO] running `Command { std: "docker" "start" "-a" "fcc615400fd7a5ad1995daa9217674cc6ed81e98ead928a8765664c262ce815d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libinterpreter v0.1.0 (/opt/rustwide/workdir/libinterpreter)
[INFO] [stderr]    Compiling repl v0.1.0 (/opt/rustwide/workdir/repl)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> libinterpreter/src/parser.rs:544:45
[INFO] [stdout]     |
[INFO] [stdout] 544 |         assert!(parser.errors().len() == 2, parser.errors().join(";"));
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 544 |         assert!(parser.errors().len() == 2, "{}", parser.errors().join(";"));
[INFO] [stdout]     |                                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `Command { std: "docker" "inspect" "fcc615400fd7a5ad1995daa9217674cc6ed81e98ead928a8765664c262ce815d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcc615400fd7a5ad1995daa9217674cc6ed81e98ead928a8765664c262ce815d", kill_on_drop: false }`
[INFO] [stdout] fcc615400fd7a5ad1995daa9217674cc6ed81e98ead928a8765664c262ce815d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0fa5430a2735280e81f3c9fefb9e50c0531ed6c6a7ed2d5f58a1a1c1674c14bf
[INFO] running `Command { std: "docker" "start" "-a" "0fa5430a2735280e81f3c9fefb9e50c0531ed6c6a7ed2d5f58a1a1c1674c14bf", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> libinterpreter/src/parser.rs:544:45
[INFO] [stderr]     |
[INFO] [stderr] 544 |         assert!(parser.errors().len() == 2, parser.errors().join(";"));
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 544 |         assert!(parser.errors().len() == 2, "{}", parser.errors().join(";"));
[INFO] [stderr]     |                                             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `libinterpreter` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/libinterpreter-2ef45a81e23bcefd)
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test evaluator::tests::test_bang_operator ... ok
[INFO] [stdout] test evaluator::tests::test_error_handling ... ok
[INFO] [stdout] test evaluator::tests::test_eval_bool ... ok
[INFO] [stdout] test evaluator::tests::test_eval_integer ... ok
[INFO] [stdout] test evaluator::tests::test_ifelse_expression ... ok
[INFO] [stdout] test evaluator::tests::test_function_application ... ok
[INFO] [stdout] test evaluator::tests::test_let_statements ... ok
[INFO] [stdout] test lexer::tests::test_lexer_delimiters ... ok
[INFO] [stdout] test evaluator::tests::test_return_statements ... ok
[INFO] [stdout] test lexer::tests::test_small_program ... ok
[INFO] [stdout] test parser::tests::test_expression_with_boolean_statement ... ok
[INFO] [stdout] test parser::tests::test_call_expression ... ok
[INFO] [stdout] test parser::tests::test_fn_expression ... ok
[INFO] [stdout] test parser::tests::test_grouped_expression_parsing ... ok
[INFO] [stdout] test parser::tests::test_ident_expression_statement ... ok
[INFO] [stdout] test parser::tests::test_if_expression ... ok
[INFO] [stdout] test parser::tests::test_if_else_expression ... ok
[INFO] [stdout] test parser::tests::test_integer_expression_statement ... ok
[INFO] [stdout] test parser::tests::test_infix_expression_statement ... ok
[INFO] [stdout] test parser::tests::test_let_statement ... ok
[INFO] [stdout] test parser::tests::test_multiple_operators_parsing ... ok
[INFO] [stdout] test parser::tests::test_prefix_expression_statement ... ok
[INFO] [stdout] test parser::tests::test_parser_errors ... ok
[INFO] [stdout] test parser::tests::test_return_statement ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/repl-b13baa69273f6f71)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libinterpreter
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0fa5430a2735280e81f3c9fefb9e50c0531ed6c6a7ed2d5f58a1a1c1674c14bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fa5430a2735280e81f3c9fefb9e50c0531ed6c6a7ed2d5f58a1a1c1674c14bf", kill_on_drop: false }`
[INFO] [stdout] 0fa5430a2735280e81f3c9fefb9e50c0531ed6c6a7ed2d5f58a1a1c1674c14bf