[INFO] fetching crate mdl_monkey 1.0.0...
[INFO] testing mdl_monkey-1.0.0 against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] extracting crate mdl_monkey 1.0.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate mdl_monkey 1.0.0 on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdl_monkey 1.0.0
[INFO] finished tweaking crates.io crate mdl_monkey 1.0.0
[INFO] tweaked toml for crates.io crate mdl_monkey 1.0.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate mdl_monkey 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e42e8e6a46dafbbf49447ca2955f98ec37030def655864792ced66a4225c5027
[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" "e42e8e6a46dafbbf49447ca2955f98ec37030def655864792ced66a4225c5027", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e42e8e6a46dafbbf49447ca2955f98ec37030def655864792ced66a4225c5027", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e42e8e6a46dafbbf49447ca2955f98ec37030def655864792ced66a4225c5027", kill_on_drop: false }`
[INFO] [stdout] e42e8e6a46dafbbf49447ca2955f98ec37030def655864792ced66a4225c5027
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 786f39077ef468d9924103e44f430b151f6818920e54d3f1f402a90897efbdab
[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" "786f39077ef468d9924103e44f430b151f6818920e54d3f1f402a90897efbdab", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling mdl_monkey v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.31s
[INFO] running `Command { std: "docker" "inspect" "786f39077ef468d9924103e44f430b151f6818920e54d3f1f402a90897efbdab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "786f39077ef468d9924103e44f430b151f6818920e54d3f1f402a90897efbdab", kill_on_drop: false }`
[INFO] [stdout] 786f39077ef468d9924103e44f430b151f6818920e54d3f1f402a90897efbdab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 084b06ac23dd6db8d9ed6463faa661cbc56ebb8202bebb3af4e86ae585704531
[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" "084b06ac23dd6db8d9ed6463faa661cbc56ebb8202bebb3af4e86ae585704531", kill_on_drop: false }`
[INFO] [stderr]    Compiling mdl_monkey v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> tests/evaluator.rs:289:57
[INFO] [stdout]     |
[INFO] [stdout] 289 |     .expect_err("expected an error but none was found");;
[INFO] [stdout]     |                                                         ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.26s
[INFO] running `Command { std: "docker" "inspect" "084b06ac23dd6db8d9ed6463faa661cbc56ebb8202bebb3af4e86ae585704531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "084b06ac23dd6db8d9ed6463faa661cbc56ebb8202bebb3af4e86ae585704531", kill_on_drop: false }`
[INFO] [stdout] 084b06ac23dd6db8d9ed6463faa661cbc56ebb8202bebb3af4e86ae585704531
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 140955ad99dd41430ba3dcfb0905adc44b2e86d213642b88eea99d8c58c3e82e
[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" "140955ad99dd41430ba3dcfb0905adc44b2e86d213642b88eea99d8c58c3e82e", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> tests/evaluator.rs:289:57
[INFO] [stderr]     |
[INFO] [stderr] 289 |     .expect_err("expected an error but none was found");;
[INFO] [stderr]     |                                                         ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mdl_monkey-dc08a014e219c6d3
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/monkey-e64450cbfbc50792
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ast-e6b0741a7d8a2d02
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/evaluator-fa108522d9087efa
[INFO] [stdout] test ast_display ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 27 tests
[INFO] [stdout] test evaluate_builtin_first_errors ... ok
[INFO] [stdout] test evaluate_builtin_len_errors ... ok
[INFO] [stdout] test evaluate_builtin_first ... ok
[INFO] [stdout] test evaluate_builtin_last_errors ... ok
[INFO] [stdout] test evaluate_boolean_expression ... ok
[INFO] [stdout] test evaluate_array_index_objects ... ok
[INFO] [stdout] test evaluate_builtin_len ... ok
[INFO] [stdout] test evaluate_builtin_last ... ok
[INFO] [stdout] test evaluate_hash_index_objects ... ok
[INFO] [stdout] test evaluate_index_objects_errors ... ok
[INFO] [stdout] test evaluate_integer_expression ... ok
[INFO] [stdout] test evaluate_let_statement ... ok
[INFO] [stdout] test evaluate_builtin_rest ... ok
[INFO] [stdout] test evaluate_string_expression ... ok
[INFO] [stdout] test evaluate_function_object ... ok
[INFO] [stdout] test evaluate_float_expression ... ok
[INFO] [stdout] test evaluate_function_application ... ok
[INFO] [stdout] test evaluate_function_application_error ... ok
[INFO] [stdout] test evaluate_builtin_push_errors ... ok
[INFO] [stdout] test evaluate_hash_objects ... ok
[INFO] [stdout] test evaluate_let_statement_unknown_identifier ... ok
[INFO] [stdout] test evaluate_prefix_expression ... ok
[INFO] [stdout] test evaluate_builtin_push ... ok
[INFO] [stdout] test evaluate_array_object ... ok
[INFO] [stdout] test evaluate_builtin_rest_errors ... ok
[INFO] [stdout] test evaluate_if_expression ... ok
[INFO] [stdout] test evaluate_return_statement ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 27 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lexer-6b8f8484a5f2cfa5
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test lex_illegal_number_radix ... ok
[INFO] [stdout] test lex_string_unexpected_eof ... ok
[INFO] [stdout] test lex_illegal_number ... ok
[INFO] [stdout] test lex_integer_literals ... ok
[INFO] [stdout] test lex_next_token ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/parser-6c8fad7f618cebb5
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test parse_if_expressions ... ok
[INFO] [stdout] test parse_infix_boolean_expressions ... ok
[INFO] [stdout] test parse_call_expressions ... ok
[INFO] [stdout] test parse_hash_expressions ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/token-6315fdfc87afc38f
[INFO] [stdout] test parse_infix_integer_expressions ... ok
[INFO] [stdout] test parse_float_literal_expression ... ok
[INFO] [stdout] test parse_prefix_boolean_expressions ... ok
[INFO] [stdout] test parse_identifier_expression ... ok
[INFO] [stdout] test parse_integer_literal_expression ... ok
[INFO] [stdout] test parse_array_literal ... ok
[INFO] [stdout] test parse_string_expression ... ok
[INFO] [stdout] test parse_operator_precedence ... ok
[INFO] [stdout] test parse_statements ... ok
[INFO] [stdout] test parse_prefix_integer_expressions ... ok
[INFO] [stdout] test parse_function_literals ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test token_display ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mdl_monkey
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "140955ad99dd41430ba3dcfb0905adc44b2e86d213642b88eea99d8c58c3e82e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "140955ad99dd41430ba3dcfb0905adc44b2e86d213642b88eea99d8c58c3e82e", kill_on_drop: false }`
[INFO] [stdout] 140955ad99dd41430ba3dcfb0905adc44b2e86d213642b88eea99d8c58c3e82e