[INFO] cloning repository https://github.com/Munksgaard/monkeyrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Munksgaard/monkeyrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMunksgaard%2Fmonkeyrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMunksgaard%2Fmonkeyrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cfec94af7b2c7e4c0c0e0a912d2f6ea2ab953830
[INFO] testing Munksgaard/monkeyrs against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMunksgaard%2Fmonkeyrs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Munksgaard/monkeyrs 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/Munksgaard/monkeyrs
[INFO] finished tweaking git repo https://github.com/Munksgaard/monkeyrs
[INFO] tweaked toml for git repo https://github.com/Munksgaard/monkeyrs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Munksgaard/monkeyrs 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 9320d2bc892e65d99e7232ab95d3ba673015846c0b59d535151abb2a6853fff2
[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" "9320d2bc892e65d99e7232ab95d3ba673015846c0b59d535151abb2a6853fff2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9320d2bc892e65d99e7232ab95d3ba673015846c0b59d535151abb2a6853fff2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9320d2bc892e65d99e7232ab95d3ba673015846c0b59d535151abb2a6853fff2", kill_on_drop: false }`
[INFO] [stdout] 9320d2bc892e65d99e7232ab95d3ba673015846c0b59d535151abb2a6853fff2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0c0ddfa4b84144ca944e69aef5fd55e19c08722adbb50e1a5ac6ff11ef19ddb0
[INFO] running `Command { std: "docker" "start" "-a" "0c0ddfa4b84144ca944e69aef5fd55e19c08722adbb50e1a5ac6ff11ef19ddb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling monkeyrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.39s
[INFO] running `Command { std: "docker" "inspect" "0c0ddfa4b84144ca944e69aef5fd55e19c08722adbb50e1a5ac6ff11ef19ddb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c0ddfa4b84144ca944e69aef5fd55e19c08722adbb50e1a5ac6ff11ef19ddb0", kill_on_drop: false }`
[INFO] [stdout] 0c0ddfa4b84144ca944e69aef5fd55e19c08722adbb50e1a5ac6ff11ef19ddb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] f8c0cbac37028cec18c7b9cc9f937465d569c12fef64cb1518e4854e406b87ec
[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" "f8c0cbac37028cec18c7b9cc9f937465d569c12fef64cb1518e4854e406b87ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling monkeyrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]    --> src/evaluator.rs:361:27
[INFO] [stdout]     |
[INFO] [stdout] 361 |             "`if (10 > 1) { true + false; }` should be an error"
[INFO] [stdout]     |                           ^               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 361 |             "{}", "`if (10 > 1) { true + false; }` should be an error"
[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 2.64s
[INFO] running `Command { std: "docker" "inspect" "f8c0cbac37028cec18c7b9cc9f937465d569c12fef64cb1518e4854e406b87ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8c0cbac37028cec18c7b9cc9f937465d569c12fef64cb1518e4854e406b87ec", kill_on_drop: false }`
[INFO] [stdout] f8c0cbac37028cec18c7b9cc9f937465d569c12fef64cb1518e4854e406b87ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ff242c40b388ba7e97e2bd55c68c3cf422a8579b708d498b4367f8117b01988a
[INFO] running `Command { std: "docker" "start" "-a" "ff242c40b388ba7e97e2bd55c68c3cf422a8579b708d498b4367f8117b01988a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: panic message contains braces
[INFO] [stdout] running 33 tests
[INFO] [stderr]    --> src/evaluator.rs:361:27
[INFO] [stderr]     |
[INFO] [stderr] 361 |             "`if (10 > 1) { true + false; }` should be an error"
[INFO] [stderr]     |                           ^               ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stderr] help: add a "{}" format string to use the message literally
[INFO] [stderr]     |
[INFO] [stderr] 361 |             "{}", "`if (10 > 1) { true + false; }` should be an error"
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `monkeyrs` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/monkeyrs-447a8076eb3fe189)
[INFO] [stdout] test evaluator::test::test_function_expression ... ok
[INFO] [stdout] test evaluator::test::test_eval_not ... ok
[INFO] [stdout] test evaluator::test::test_function_application ... ok
[INFO] [stdout] test evaluator::test::test_eval_boolean_expression ... ok
[INFO] [stdout] test evaluator::test::test_if_else_expression ... ok
[INFO] [stdout] test evaluator::test::test_let_statements ... ok
[INFO] [stdout] test evaluator::test::test_return_statement ... ok
[INFO] [stdout] test evaluator::test::test_eval_integer_expression ... ok
[INFO] [stdout] test parser::test::test_identifer_expression ... ok
[INFO] [stdout] test parser::test::test_boolean_expression ... ok
[INFO] [stdout] test parser::test::test_function_literal_expression ... ok
[INFO] [stdout] test parser::test::test_if_else_expression ... ok
[INFO] [stdout] test lexer::test::test_lex_2 ... ok
[INFO] [stdout] test parser::test::test_not_expression ... ok
[INFO] [stdout] test parser::test::test_operator_precedence_expressions ... ok
[INFO] [stdout] test parser::test::test_precedence ... ok
[INFO] [stdout] test parser::test::test_return_statements ... ok
[INFO] [stdout] test parser::test::test_literal_integer_expression ... ok
[INFO] [stdout] test parser::test::test_if_expression ... ok
[INFO] [stdout] test lexer::test::test_lex_4 ... ok
[INFO] [stdout] test parser::test::test_negated_expression ... ok
[INFO] [stdout] test parser::test::test_multiply_plus ... ok
[INFO] [stdout] test parser::test::test_let_statements ... ok
[INFO] [stdout] test parser::test::test_infix_expression ... ok
[INFO] [stdout] test lexer::test::test_lex_1 ... ok
[INFO] [stdout] test parser::test::test_string_literal_expression ... ok
[INFO] [stdout] test parser::test::test_call_expression ... ok
[INFO] [stdout] test evaluator::test::test_string_concatenation ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/monkeyrs-eda2e5afc1167c28)
[INFO] [stdout] test lexer::test::test_lex_3 ... ok
[INFO] [stdout] test lexer::test::test_lex_5 ... ok
[INFO] [stdout] test lexer::test::test_lex_6 ... ok
[INFO] [stdout] test evaluator::test::test_string_literal ... ok
[INFO] [stdout] test evaluator::test::test_error_handling ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 33 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[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 monkeyrs
[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" "ff242c40b388ba7e97e2bd55c68c3cf422a8579b708d498b4367f8117b01988a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff242c40b388ba7e97e2bd55c68c3cf422a8579b708d498b4367f8117b01988a", kill_on_drop: false }`
[INFO] [stdout] ff242c40b388ba7e97e2bd55c68c3cf422a8579b708d498b4367f8117b01988a