[INFO] cloning repository https://github.com/keiya01/kmonkey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/keiya01/kmonkey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeiya01%2Fkmonkey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeiya01%2Fkmonkey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f23bda01226b035f832c53d6c72947564d7af669
[INFO] testing keiya01/kmonkey against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeiya01%2Fkmonkey" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/keiya01/kmonkey 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/keiya01/kmonkey
[INFO] finished tweaking git repo https://github.com/keiya01/kmonkey
[INFO] tweaked toml for git repo https://github.com/keiya01/kmonkey written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/keiya01/kmonkey 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]  Downloading crates ...
[INFO] [stderr]   Downloaded rustyline v7.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 1218b68be6a34c882f1c9911665d8aca0e5f6c057710083fa1fd7452d2ecaf5c
[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" "1218b68be6a34c882f1c9911665d8aca0e5f6c057710083fa1fd7452d2ecaf5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1218b68be6a34c882f1c9911665d8aca0e5f6c057710083fa1fd7452d2ecaf5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1218b68be6a34c882f1c9911665d8aca0e5f6c057710083fa1fd7452d2ecaf5c", kill_on_drop: false }`
[INFO] [stdout] 1218b68be6a34c882f1c9911665d8aca0e5f6c057710083fa1fd7452d2ecaf5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 5de6dde1fb766bbce51c8404a3a0fdccb30a122a032a18bfae2e98fa95f07e14
[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" "5de6dde1fb766bbce51c8404a3a0fdccb30a122a032a18bfae2e98fa95f07e14", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.69
[INFO] [stderr]    Compiling bumpalo v3.4.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.69
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]    Compiling boolinator v2.4.0
[INFO] [stderr]    Compiling yew v0.17.4
[INFO] [stderr]    Compiling utf8parse v0.2.0
[INFO] [stderr]    Compiling interpreter v0.1.0 (/opt/rustwide/workdir/interpreter)
[INFO] [stderr]    Compiling cfg-match v0.2.1
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling yew-macro v0.17.0
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.69
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> interpreter/lexer/mod.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     &l.read_char();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.69
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling nix v0.19.1
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.69
[INFO] [stderr]    Compiling dirs v3.0.1
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling js-sys v0.3.46
[INFO] [stderr]    Compiling console_error_panic_hook v0.1.6
[INFO] [stderr]    Compiling rustyline v7.0.0
[INFO] [stderr]    Compiling web-sys v0.3.46
[INFO] [stderr]    Compiling wasm-bindgen-futures v0.4.19
[INFO] [stderr]    Compiling repl v0.1.0 (/opt/rustwide/workdir/repl)
[INFO] [stderr]    Compiling gloo-events v0.1.1
[INFO] [stderr]    Compiling gloo-console-timer v0.1.0
[INFO] [stderr]    Compiling gloo-timers v0.2.1
[INFO] [stderr]    Compiling gloo-file v0.1.0
[INFO] [stderr]    Compiling gloo v0.2.1
[INFO] [stderr]    Compiling crate v0.1.0 (/opt/rustwide/workdir/web/crate)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 20s
[INFO] running `Command { std: "docker" "inspect" "5de6dde1fb766bbce51c8404a3a0fdccb30a122a032a18bfae2e98fa95f07e14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5de6dde1fb766bbce51c8404a3a0fdccb30a122a032a18bfae2e98fa95f07e14", kill_on_drop: false }`
[INFO] [stdout] 5de6dde1fb766bbce51c8404a3a0fdccb30a122a032a18bfae2e98fa95f07e14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] d4f4069522537e8e64b0698486865b272d418e46b407ca635cd769d027a3daaa
[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" "d4f4069522537e8e64b0698486865b272d418e46b407ca635cd769d027a3daaa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling interpreter v0.1.0 (/opt/rustwide/workdir/interpreter)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> interpreter/lexer/mod.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     &l.read_char();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling repl v0.1.0 (/opt/rustwide/workdir/repl)
[INFO] [stderr]    Compiling crate v0.1.0 (/opt/rustwide/workdir/web/crate)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> interpreter/evaluator/mod.rs:854:8
[INFO] [stdout]     |
[INFO] [stdout] 854 |       };
[INFO] [stdout]     |        ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> interpreter/lexer/mod.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     &l.read_char();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.90s
[INFO] running `Command { std: "docker" "inspect" "d4f4069522537e8e64b0698486865b272d418e46b407ca635cd769d027a3daaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4f4069522537e8e64b0698486865b272d418e46b407ca635cd769d027a3daaa", kill_on_drop: false }`
[INFO] [stdout] d4f4069522537e8e64b0698486865b272d418e46b407ca635cd769d027a3daaa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 862588394f44c543546dcfef032c7de76652da544ad89fca3e7065e062eefd16
[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" "862588394f44c543546dcfef032c7de76652da544ad89fca3e7065e062eefd16", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> interpreter/lexer/mod.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     &l.read_char();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `interpreter` (lib) generated 1 warning
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> interpreter/evaluator/mod.rs:854:8
[INFO] [stderr]     |
[INFO] [stderr] 854 |       };
[INFO] [stderr]     |        ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `interpreter` (lib test) generated 2 warnings (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/crate-95e287dbb92c94aa)
[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]      Running unittests (/opt/rustwide/target/debug/deps/interpreter-532e7cbd766c8899)
[INFO] [stdout] 
[INFO] [stdout] running 42 tests
[INFO] [stdout] test evaluator::tests::test_eval_bang_operator ... ok
[INFO] [stdout] test evaluator::tests::test_eval_string_expression ... ok
[INFO] [stdout] test evaluator::tests::test_eval_external ... ok
[INFO] [stdout] test evaluator::tests::test_eval_hash_builtin ... ok
[INFO] [stdout] test evaluator::tests::test_eval_integer_expression ... ok
[INFO] [stdout] test evaluator::tests::test_func_object ... ok
[INFO] [stdout] test evaluator::tests::test_builtin_functions ... ok
[INFO] [stdout] test evaluator::tests::test_if_else_expression ... ok
[INFO] [stdout] test evaluator::tests::test_string_concatenation ... ok
[INFO] [stdout] test evaluator::tests::test_eval_boolean_expression ... ok
[INFO] [stdout] test evaluator::tests::test_eval_hash_expression ... ok
[INFO] [stdout] test parser::expr::tests::test_parse_else_expression ... ok
[INFO] [stdout] test parser::expr::tests::test_parse_empty_hash ... ok
[INFO] [stdout] test parser::expr::tests::test_parse_call_expression ... ok
[INFO] [stdout] test parser::expr::tests::test_parse_func_expression ... ok
[INFO] [stdout] test parser::expr::tests::test_parse_hash_bool_keys ... ok
[INFO] [stdout] test parser::expr::tests::test_parse_hash_infix_values ... ok
[INFO] [stdout] test parser::expr::tests::test_parse_hash_int_keys ... ok
[INFO] [stdout] test parser::expr::tests::test_parse_hash_string_keys ... ok
[INFO] [stdout] test evaluator::tests::test_func_application ... ok
[INFO] [stdout] test parser::expr::tests::test_parse_identifier_expression ... ok
[INFO] [stdout] test parser::expr::tests::test_parse_if_expression ... ok
[INFO] [stdout] test parser::expr::tests::test_parse_index_expression ... ok
[INFO] [stdout] test parser::expr::tests::test_parse_infix_expression ... ok
[INFO] [stdout] test parser::expr::tests::test_parse_int_literal_expression ... ok
[INFO] [stdout] test parser::expr::tests::test_parse_boolean_expression ... ok
[INFO] [stdout] test evaluator::tests::test_closure ... ok
[INFO] [stdout] test lexer::tests::get_next_token ... ok
[INFO] [stdout] test evaluator::tests::test_let_statement ... ok
[INFO] [stdout] test evaluator::tests::test_return_expression ... ok
[INFO] [stdout] test evaluator::tests::test_eval_index_expression ... ok
[INFO] [stdout] test evaluator::tests::test_error_handling ... ok
[INFO] [stdout] test evaluator::tests::test_eval_array_expression ... ok
[INFO] [stdout] test parser::stmt::tests::test_parse_let_statement ... ok
[INFO] [stdout] test parser::stmt::tests::test_parse_comment_statement ... ok
[INFO] [stdout] test parser::expr::tests::test_parse_prefix_expression ... ok
[INFO] [stdout] test parser::expr::tests::test_parse_string_expression ... ok
[INFO] [stdout] test parser::expr::tests::test_parse_array_expression ... ok
[INFO] [stdout] test parser::stmt::tests::test_parse_return_statement ... ok
[INFO] [stdout] test evaluator::tests::test_eval_hash_index_expression ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rsmonkey-f246b5d4c32de31f)
[INFO] [stdout] test parser::expr::tests::test_func_args_expression ... ok
[INFO] [stdout] test parser::expr::tests::test_operator_precedence_parsing ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 42 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests crate
[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] [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 interpreter
[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" "862588394f44c543546dcfef032c7de76652da544ad89fca3e7065e062eefd16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "862588394f44c543546dcfef032c7de76652da544ad89fca3e7065e062eefd16", kill_on_drop: false }`
[INFO] [stdout] 862588394f44c543546dcfef032c7de76652da544ad89fca3e7065e062eefd16