[INFO] updating cached repository https://github.com/wvanlit/rust-monkey
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e0d0d3c23c9d97fb45da7396cb0e96646da17965
[INFO] testing wvanlit/rust-monkey against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwvanlit%2Frust-monkey" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wvanlit/rust-monkey on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/wvanlit/rust-monkey
[INFO] finished tweaking git repo https://github.com/wvanlit/rust-monkey
[INFO] tweaked toml for git repo https://github.com/wvanlit/rust-monkey written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/wvanlit/rust-monkey already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b92ccf4ed30bfc76ce9504407f8f31037366cf5e37e099ea0fea79b4cd60b48c
[INFO] running `"docker" "start" "-a" "b92ccf4ed30bfc76ce9504407f8f31037366cf5e37e099ea0fea79b4cd60b48c"`
[INFO] [stderr]    Compiling monkey_interpreter v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `program_to_string`
[INFO] [stderr]  --> src/parser/ast.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn program_to_string(program: &Program) -> String {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `None`
[INFO] [stderr]   --> src/parser/ast.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     None,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `"docker" "inspect" "b92ccf4ed30bfc76ce9504407f8f31037366cf5e37e099ea0fea79b4cd60b48c"`
[INFO] running `"docker" "rm" "-f" "b92ccf4ed30bfc76ce9504407f8f31037366cf5e37e099ea0fea79b4cd60b48c"`
[INFO] [stdout] b92ccf4ed30bfc76ce9504407f8f31037366cf5e37e099ea0fea79b4cd60b48c
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4c3eae4b8a26e1a4cc442abb923c048ab49fe1991e143a3a6d3898a1ebe2784e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "4c3eae4b8a26e1a4cc442abb923c048ab49fe1991e143a3a6d3898a1ebe2784e"`
[INFO] [stderr]    Compiling monkey_interpreter v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant is never constructed: `None`
[INFO] [stderr]   --> src/parser/ast.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     None,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.98s
[INFO] running `"docker" "inspect" "4c3eae4b8a26e1a4cc442abb923c048ab49fe1991e143a3a6d3898a1ebe2784e"`
[INFO] running `"docker" "rm" "-f" "4c3eae4b8a26e1a4cc442abb923c048ab49fe1991e143a3a6d3898a1ebe2784e"`
[INFO] [stdout] 4c3eae4b8a26e1a4cc442abb923c048ab49fe1991e143a3a6d3898a1ebe2784e
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ac53f23496cad77c475266e322021057e3cb5a10a16884a7762943a1752db190
[INFO] running `"docker" "start" "-a" "ac53f23496cad77c475266e322021057e3cb5a10a16884a7762943a1752db190"`
[INFO] [stderr] warning: variant is never constructed: `None`
[INFO] [stderr]   --> src/parser/ast.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     None,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/monkey_interpreter-f927c4a0e1affdb9
[INFO] [stdout] 
[INFO] [stdout] running 42 tests
[INFO] [stdout] test evaluate::evaluate::tests::test_builtin_functions ... ok
[INFO] [stdout] test evaluate::evaluate::tests::test_string_literal_concat ... ok
[INFO] [stdout] test lexer::lexer::tests::equals_not_equals ... ok
[INFO] [stdout] test lexer::lexer::tests::extended_tokens ... ok
[INFO] [stdout] test evaluate::evaluate::tests::test_string_literal ... ok
[INFO] [stdout] test evaluate::evaluate::tests::test_return_expression ... ok
[INFO] [stdout] test evaluate::evaluate::tests::test_let_statement ... ok
[INFO] [stdout] test evaluate::evaluate::tests::test_hash_literal ... ok
[INFO] [stdout] test lexer::lexer::tests::next_token ... ok
[INFO] [stdout] test lexer::lexer::tests::number_parsing ... ok
[INFO] [stdout] test evaluate::evaluate::tests::test_function_object ... ok
[INFO] [stdout] test lexer::lexer::tests::test_hash ... ok
[INFO] [stdout] test lexer::lexer::tests::test_strings ... ok
[INFO] [stdout] test parser::parser::tests::test_array_index_parsing ... ok
[INFO] [stdout] test parser::parser::tests::test_array_literal_parsing ... ok
[INFO] [stdout] test parser::parser::tests::test_boolean_expression ... ok
[INFO] [stdout] test evaluate::evaluate::tests::test_function_call ... ok
[INFO] [stdout] test parser::parser::tests::test_identifier_expression ... ok
[INFO] [stdout] test lexer::lexer::tests::test_brackets ... ok
[INFO] [stdout] test parser::parser::tests::test_call_expresion_parsing ... ok
[INFO] [stdout] test parser::parser::tests::test_hash_literal_parsing_string_keys ... ok
[INFO] [stdout] test parser::parser::tests::test_hash_literal_parsing_empty ... ok
[INFO] [stdout] test lexer::lexer::tests::simple_code ... ok
[INFO] [stdout] test parser::parser::tests::test_function_literal_parsing ... ok
[INFO] [stdout] test evaluate::evaluate::tests::test_array_literal ... ok
[INFO] [stdout] test lexer::lexer::tests::if_else_tokens ... ok
[INFO] [stdout] test parser::parser::tests::test_if_else_expression ... ok
[INFO] [stdout] test parser::parser::tests::test_let_statement ... ok
[INFO] [stdout] test parser::parser::tests::test_let_statement_expressions ... ok
[INFO] [stdout] test parser::parser::tests::test_integer_expression ... ok
[INFO] [stdout] test evaluate::evaluate::tests::test_eval_boolean_expression ... ok
[INFO] [stdout] test evaluate::evaluate::tests::test_error_handling ... ok
[INFO] [stdout] test evaluate::evaluate::tests::test_eval_conditional_expression ... ok
[INFO] [stdout] test evaluate::evaluate::tests::test_hash_index ... ok
[INFO] [stdout] test evaluate::evaluate::tests::test_array_index ... ok
[INFO] [stdout] test parser::parser::tests::test_if_expression ... ok
[INFO] [stdout] test evaluate::evaluate::tests::test_eval_integer_expression ... ok
[INFO] [stdout] test parser::parser::tests::test_operator_precedence ... ok
[INFO] [stdout] test parser::parser::tests::test_parsing_prefix_expressions ... ok
[INFO] [stdout] test parser::parser::tests::test_string_literal_expression ... ok
[INFO] [stdout] test parser::parser::tests::test_return_statement ... ok
[INFO] [stdout] test parser::parser::tests::test_parsing_infix_expressions ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 42 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ac53f23496cad77c475266e322021057e3cb5a10a16884a7762943a1752db190"`
[INFO] running `"docker" "rm" "-f" "ac53f23496cad77c475266e322021057e3cb5a10a16884a7762943a1752db190"`
[INFO] [stdout] ac53f23496cad77c475266e322021057e3cb5a10a16884a7762943a1752db190