[INFO] cloning repository https://github.com/seungha-kim/json-monkey-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seungha-kim/json-monkey-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseungha-kim%2Fjson-monkey-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseungha-kim%2Fjson-monkey-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] adf210299b731bf3d122a91cbdacc449f76a6d2a
[INFO] testing seungha-kim/json-monkey-rs against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseungha-kim%2Fjson-monkey-rs" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/seungha-kim/json-monkey-rs 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/seungha-kim/json-monkey-rs
[INFO] finished tweaking git repo https://github.com/seungha-kim/json-monkey-rs
[INFO] tweaked toml for git repo https://github.com/seungha-kim/json-monkey-rs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/seungha-kim/json-monkey-rs 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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 75dd24ed34f30f51b085f8bf90b34b602166e687a7dfe00b3d9e415b8dadec8c
[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" "75dd24ed34f30f51b085f8bf90b34b602166e687a7dfe00b3d9e415b8dadec8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75dd24ed34f30f51b085f8bf90b34b602166e687a7dfe00b3d9e415b8dadec8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75dd24ed34f30f51b085f8bf90b34b602166e687a7dfe00b3d9e415b8dadec8c", kill_on_drop: false }`
[INFO] [stdout] 75dd24ed34f30f51b085f8bf90b34b602166e687a7dfe00b3d9e415b8dadec8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 0967af225e3773a838f0c1f7bae9156b609bcb56f670fce974fcde5947ddaae1
[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" "0967af225e3773a838f0c1f7bae9156b609bcb56f670fce974fcde5947ddaae1", kill_on_drop: false }`
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling fd-lock v2.0.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling radix_trie v0.2.1
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling rustyline v8.2.0
[INFO] [stderr]    Compiling json-monkey-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.23s
[INFO] running `Command { std: "docker" "inspect" "0967af225e3773a838f0c1f7bae9156b609bcb56f670fce974fcde5947ddaae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0967af225e3773a838f0c1f7bae9156b609bcb56f670fce974fcde5947ddaae1", kill_on_drop: false }`
[INFO] [stdout] 0967af225e3773a838f0c1f7bae9156b609bcb56f670fce974fcde5947ddaae1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c5014962be4a475c5ad9658793d14672c141e6f48c7ea971c80007f757519b72
[INFO] running `Command { std: "docker" "start" "-a" "c5014962be4a475c5ad9658793d14672c141e6f48c7ea971c80007f757519b72", kill_on_drop: false }`
[INFO] [stderr]    Compiling json-monkey-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.39s
[INFO] running `Command { std: "docker" "inspect" "c5014962be4a475c5ad9658793d14672c141e6f48c7ea971c80007f757519b72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5014962be4a475c5ad9658793d14672c141e6f48c7ea971c80007f757519b72", kill_on_drop: false }`
[INFO] [stdout] c5014962be4a475c5ad9658793d14672c141e6f48c7ea971c80007f757519b72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 16afe35da6443873c2b30f2cc49e5cc633937dff386a9d7fbc54d6872b605fcf
[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" "16afe35da6443873c2b30f2cc49e5cc633937dff386a9d7fbc54d6872b605fcf", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] running 19 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/json_monkey_rs-9406b43bd7bf924f)
[INFO] [stdout] test interpreter::tests::it_evaluate_binding_and_ident ... ok
[INFO] [stdout] test interpreter::tests::it_evaluate_subtraction ... ok
[INFO] [stdout] test interpreter::tests::it_evaluates_comparison_operation ... ok
[INFO] [stdout] test interpreter::tests::it_evaluates_if_expression ... ok
[INFO] [stdout] test jir::tests::it_parses_addition ... ok
[INFO] [stdout] test jir::tests::it_parses_binding ... ok
[INFO] [stdout] test jir::tests::it_parses_boolean_operation ... ok
[INFO] [stdout] test interpreter::tests::it_evaluate_addition ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/json_monkey_rs-76d37efe956a34d8)
[INFO] [stdout] test jir::tests::it_parses_comparison_operation ... ok
[INFO] [stdout] test jir::tests::it_parses_if_expression_without_false_branch ... ok
[INFO] [stdout] test jir::tests::it_parses_ref ... ok
[INFO] [stdout] test jir::tests::it_parses_if_expression ... ok
[INFO] [stdout] test jir::tests::it_parses_subtraction ... ok
[INFO] [stdout] test jir::tests::it_parses_while_expression ... ok
[INFO] [stdout] test interpreter::tests::it_concatenate_strings ... ok
[INFO] [stdout] test interpreter::tests::it_evaluates_boolean_operation ... ok
[INFO] [stdout] test interpreter::tests::it_evaluates_non_boolean_types_as_boolean ... ok
[INFO] [stdout] test interpreter::tests::it_evaluates_while_loop ... ok
[INFO] [stdout] test interpreter::tests::it_evaluates_if_expression_as_null ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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 json-monkey-rs
[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" "16afe35da6443873c2b30f2cc49e5cc633937dff386a9d7fbc54d6872b605fcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16afe35da6443873c2b30f2cc49e5cc633937dff386a9d7fbc54d6872b605fcf", kill_on_drop: false }`
[INFO] [stdout] 16afe35da6443873c2b30f2cc49e5cc633937dff386a9d7fbc54d6872b605fcf