[INFO] cloning repository https://github.com/kdnakt/rmonkey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kdnakt/rmonkey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdnakt%2Frmonkey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdnakt%2Frmonkey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8daf98e0ffd960a0c223d674a6402bfe74406f5
[INFO] testing kdnakt/rmonkey against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdnakt%2Frmonkey" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kdnakt/rmonkey
[INFO] finished tweaking git repo https://github.com/kdnakt/rmonkey
[INFO] tweaked toml for git repo https://github.com/kdnakt/rmonkey written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kdnakt/rmonkey on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kdnakt/rmonkey already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.30
[INFO] [stderr]   Downloaded whoami v1.1.5
[INFO] [stderr]   Downloaded bumpalo v3.8.0
[INFO] [stderr]   Downloaded quote v1.0.10
[INFO] [stderr]   Downloaded syn v1.0.80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98ab4759e1cead5d396e609ee356aea2e7d65ea38c0a243584bf559cf1e0e9ed
[INFO] running `Command { std: "docker" "start" "-a" "98ab4759e1cead5d396e609ee356aea2e7d65ea38c0a243584bf559cf1e0e9ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98ab4759e1cead5d396e609ee356aea2e7d65ea38c0a243584bf559cf1e0e9ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98ab4759e1cead5d396e609ee356aea2e7d65ea38c0a243584bf559cf1e0e9ed", kill_on_drop: false }`
[INFO] [stdout] 98ab4759e1cead5d396e609ee356aea2e7d65ea38c0a243584bf559cf1e0e9ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 238431f416d3236dc82600d897324be49d89a2506ef1fc6833edd25330f458fe
[INFO] running `Command { std: "docker" "start" "-a" "238431f416d3236dc82600d897324be49d89a2506ef1fc6833edd25330f458fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling whoami v1.1.5
[INFO] [stderr]    Compiling rmonkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `parameters`
[INFO] [stdout]   --> src/object.rs:64:22
[INFO] [stdout]    |
[INFO] [stdout] 64 |             Function{parameters, body, ..} => {
[INFO] [stdout]    |                      ^^^^^^^^^^ help: try ignoring the field: `parameters: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]   --> src/object.rs:64:34
[INFO] [stdout]    |
[INFO] [stdout] 64 |             Function{parameters, body, ..} => {
[INFO] [stdout]    |                                  ^^^^ help: try ignoring the field: `body: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/evaluator.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             _ => None,
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/evaluator.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |             ExpressionStatement{expression, ..} => eval_expression(expression, env),
[INFO] [stdout]    |             ----------------------------------- matches some of the same values
[INFO] [stdout] 20 |             BlockStatement{statements, ..} => eval_statements(statements, env),
[INFO] [stdout]    |             ------------------------------ matches some of the same values
[INFO] [stdout] 21 |             ReturnStatement{return_value, ..} => {
[INFO] [stdout]    |             --------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 25 |             LetStatement{value, name, ..} => {
[INFO] [stdout]    |             ----------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 39 |             _ => None,
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Node` is never used
[INFO] [stdout]  --> src/ast.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub trait Node {
[INFO] [stdout]   |           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Expression` is never constructed
[INFO] [stdout]   --> src/ast.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum AstNode {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 18 |     Expression {
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `PrefixParseFn` is never used
[INFO] [stdout]   --> src/parser.rs:55:6
[INFO] [stdout]    |
[INFO] [stdout] 55 | enum PrefixParseFn {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "238431f416d3236dc82600d897324be49d89a2506ef1fc6833edd25330f458fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "238431f416d3236dc82600d897324be49d89a2506ef1fc6833edd25330f458fe", kill_on_drop: false }`
[INFO] [stdout] 238431f416d3236dc82600d897324be49d89a2506ef1fc6833edd25330f458fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4760ae1401b8cd735a294b821c372c596f535dcaf6aafb993ebbfe525c72210f
[INFO] running `Command { std: "docker" "start" "-a" "4760ae1401b8cd735a294b821c372c596f535dcaf6aafb993ebbfe525c72210f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rmonkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `parameters`
[INFO] [stdout]   --> src/object.rs:64:22
[INFO] [stdout]    |
[INFO] [stdout] 64 |             Function{parameters, body, ..} => {
[INFO] [stdout]    |                      ^^^^^^^^^^ help: try ignoring the field: `parameters: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]   --> src/object.rs:64:34
[INFO] [stdout]    |
[INFO] [stdout] 64 |             Function{parameters, body, ..} => {
[INFO] [stdout]    |                                  ^^^^ help: try ignoring the field: `body: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/evaluator.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             _ => None,
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/evaluator.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |             ExpressionStatement{expression, ..} => eval_expression(expression, env),
[INFO] [stdout]    |             ----------------------------------- matches some of the same values
[INFO] [stdout] 20 |             BlockStatement{statements, ..} => eval_statements(statements, env),
[INFO] [stdout]    |             ------------------------------ matches some of the same values
[INFO] [stdout] 21 |             ReturnStatement{return_value, ..} => {
[INFO] [stdout]    |             --------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 25 |             LetStatement{value, name, ..} => {
[INFO] [stdout]    |             ----------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 39 |             _ => None,
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Expression` is never constructed
[INFO] [stdout]   --> src/ast.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum AstNode {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 18 |     Expression {
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `PrefixParseFn` is never used
[INFO] [stdout]   --> src/parser.rs:55:6
[INFO] [stdout]    |
[INFO] [stdout] 55 | enum PrefixParseFn {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "4760ae1401b8cd735a294b821c372c596f535dcaf6aafb993ebbfe525c72210f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4760ae1401b8cd735a294b821c372c596f535dcaf6aafb993ebbfe525c72210f", kill_on_drop: false }`
[INFO] [stdout] 4760ae1401b8cd735a294b821c372c596f535dcaf6aafb993ebbfe525c72210f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8cfafef16c577aa25038517d2d325b20dbfafcb72829c68ec94fc827c831f2f5
[INFO] running `Command { std: "docker" "start" "-a" "8cfafef16c577aa25038517d2d325b20dbfafcb72829c68ec94fc827c831f2f5", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `parameters`
[INFO] [stderr]   --> src/object.rs:64:22
[INFO] [stderr]    |
[INFO] [stderr] 64 |             Function{parameters, body, ..} => {
[INFO] [stderr]    |                      ^^^^^^^^^^ help: try ignoring the field: `parameters: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `body`
[INFO] [stderr]   --> src/object.rs:64:34
[INFO] [stderr]    |
[INFO] [stderr] 64 |             Function{parameters, body, ..} => {
[INFO] [stderr]    |                                  ^^^^ help: try ignoring the field: `body: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/evaluator.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |             _ => None,
[INFO] [stderr]    |             ^ no value can reach this
[INFO] [stderr]    |
[INFO] [stderr] note: multiple earlier patterns match some of the same values
[INFO] [stderr]   --> src/evaluator.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |             ExpressionStatement{expression, ..} => eval_expression(expression, env),
[INFO] [stderr]    |             ----------------------------------- matches some of the same values
[INFO] [stderr] 20 |             BlockStatement{statements, ..} => eval_statements(statements, env),
[INFO] [stderr]    |             ------------------------------ matches some of the same values
[INFO] [stderr] 21 |             ReturnStatement{return_value, ..} => {
[INFO] [stderr]    |             --------------------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 25 |             LetStatement{value, name, ..} => {
[INFO] [stderr]    |             ----------------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 39 |             _ => None,
[INFO] [stderr]    |             ^ collectively making this unreachable
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Expression` is never constructed
[INFO] [stderr]   --> src/ast.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub enum AstNode {
[INFO] [stderr]    |          ------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 18 |     Expression {
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `PrefixParseFn` is never used
[INFO] [stderr]   --> src/parser.rs:55:6
[INFO] [stderr]    |
[INFO] [stderr] 55 | enum PrefixParseFn {
[INFO] [stderr]    |      ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rmonkey` (bin "rmonkey" test) generated 5 warnings (run `cargo fix --bin "rmonkey" -p rmonkey --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rmonkey-f11d1799c307a04a)
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test ast::tests::it_returns_string ... ok
[INFO] [stdout] test evaluator::tests::it_eval_boolean_expression ... ok
[INFO] [stdout] test evaluator::tests::it_eval_error_handling ... ok
[INFO] [stdout] test evaluator::tests::it_eval_function_object ... ok
[INFO] [stdout] test evaluator::tests::it_eval_integer_expression ... ok
[INFO] [stdout] test evaluator::tests::it_eval_if_else_expression ... ok
[INFO] [stdout] test evaluator::tests::it_eval_return_statement ... ok
[INFO] [stdout] test evaluator::tests::it_eval_let_statements ... ok
[INFO] [stdout] test evaluator::tests::it_evaluates_bang_operator ... ok
[INFO] [stdout] test parser::tests::it_parses_boolean_expression ... ok
[INFO] [stdout] test parser::tests::it_parses_call_expression ... ok
[INFO] [stdout] test lexer::tests::it_gets_next_token ... ok
[INFO] [stdout] test parser::tests::it_parses_function_literal ... ok
[INFO] [stdout] test parser::tests::it_parses_identifier_expression ... ok
[INFO] [stdout] test parser::tests::it_parses_function_parameter ... ok
[INFO] [stdout] test parser::tests::it_parses_infix_bool_expressions ... ok
[INFO] [stdout] test parser::tests::it_parses_if_statement ... ok
[INFO] [stdout] test parser::tests::it_parses_integer_literal_expression ... ok
[INFO] [stdout] test token::tests::it_displays_token ... ok
[INFO] [stdout] test parser::tests::it_parses_prefix_expressions ... ok
[INFO] [stdout] test parser::tests::it_parses_operator_precedence ... ok
[INFO] [stdout] test parser::tests::it_parses_return_statements ... ok
[INFO] [stdout] test parser::tests::it_parses_infix_expressions ... ok
[INFO] [stdout] test parser::tests::it_parses_let_statements ... ok
[INFO] [stdout] test evaluator::tests::it_eval_function_application ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- evaluator::tests::it_eval_function_application stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'evaluator::tests::it_eval_function_application' (21) panicked at src/evaluator.rs:408:13:
[INFO] [stdout] object is not Integer. got=None
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5b3e0f2febaa - std[29689e6404d28ef9]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5b3e0f2febaa - std[29689e6404d28ef9]::backtrace_rs::backtrace::trace_unsynchronized::<std[29689e6404d28ef9]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr] error: test failed, to rerun pass `--bin rmonkey`
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5b3e0f2febaa - std[29689e6404d28ef9]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5b3e0f2febaa - <<std[29689e6404d28ef9]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[e929cb53b82a81ca]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5b3e0f312fba - <core[e929cb53b82a81ca]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5b3e0f312fba - core[e929cb53b82a81ca]::fmt::write
[INFO] [stdout]    6:     0x5b3e0f303492 - std[29689e6404d28ef9]::io::default_write_fmt::<alloc[9d7caffeb3b5d2c6]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/io/mod.rs:621:11
[INFO] [stdout]    7:     0x5b3e0f303492 - <alloc[9d7caffeb3b5d2c6]::vec::Vec<u8> as std[29689e6404d28ef9]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/io/mod.rs:1976:13
[INFO] [stdout]    8:     0x5b3e0f2ddbaf - <std[29689e6404d28ef9]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5b3e0f2ddbaf - std[29689e6404d28ef9]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5b3e0f2f7009 - std[29689e6404d28ef9]::panicking::default_hook
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5b3e0f2937fc - <alloc[9d7caffeb3b5d2c6]::boxed::Box<dyn for<'a, 'b> core[e929cb53b82a81ca]::ops::function::Fn<(&'a std[29689e6404d28ef9]::panic::PanicHookInfo<'b>,), Output = ()> + core[e929cb53b82a81ca]::marker::Send + core[e929cb53b82a81ca]::marker::Sync> as core[e929cb53b82a81ca]::ops::function::Fn<(&std[29689e6404d28ef9]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/alloc/src/boxed.rs:2285:9
[INFO] [stdout]   12:     0x5b3e0f2937fc - test[a24b3028667022f7]::test_main_inner::<test[a24b3028667022f7]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x5b3e0f2f71c2 - <alloc[9d7caffeb3b5d2c6]::boxed::Box<dyn for<'a, 'b> core[e929cb53b82a81ca]::ops::function::Fn<(&'a std[29689e6404d28ef9]::panic::PanicHookInfo<'b>,), Output = ()> + core[e929cb53b82a81ca]::marker::Send + core[e929cb53b82a81ca]::marker::Sync> as core[e929cb53b82a81ca]::ops::function::Fn<(&std[29689e6404d28ef9]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/alloc/src/boxed.rs:2285:9
[INFO] [stdout]   14:     0x5b3e0f2f71c2 - std[29689e6404d28ef9]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5b3e0f2ddc68 - std[29689e6404d28ef9]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x5b3e0f2d2e49 - std[29689e6404d28ef9]::sys::backtrace::__rust_end_short_backtrace::<std[29689e6404d28ef9]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5b3e0f2de97d - __rustc[3aed6af316653e63]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5b3e0f31374c - core[e929cb53b82a81ca]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5b3e0f26b536 - rmonkey[21c2764dce7024e1]::evaluator::tests::test_integer_object
[INFO] [stdout]                                at /opt/rustwide/workdir/src/evaluator.rs:408:13
[INFO] [stdout]   20:     0x5b3e0f26c73d - rmonkey[21c2764dce7024e1]::evaluator::tests::it_eval_function_application
[INFO] [stdout]                                at /opt/rustwide/workdir/src/evaluator.rs:383:13
[INFO] [stdout]   21:     0x5b3e0f269557 - rmonkey[21c2764dce7024e1]::evaluator::tests::it_eval_function_application::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/evaluator.rs:374:38
[INFO] [stdout]   22:     0x5b3e0f260746 - <rmonkey[21c2764dce7024e1]::evaluator::tests::it_eval_function_application::{closure#0} as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5b3e0f286adb - <fn() -> core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5b3e0f286adb - test[a24b3028667022f7]::__rust_begin_short_backtrace::<core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>, fn() -> core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:724:18
[INFO] [stdout]   25:     0x5b3e0f2942cb - test[a24b3028667022f7]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:747:74
[INFO] [stdout]   26:     0x5b3e0f2942cb - <core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   27:     0x5b3e0f2942cb - std[29689e6404d28ef9]::panicking::catch_unwind::do_call::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}>, core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:581:40
[INFO] [stdout]   28:     0x5b3e0f2942cb - std[29689e6404d28ef9]::panicking::catch_unwind::<core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>, core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:544:19
[INFO] [stdout]   29:     0x5b3e0f2942cb - std[29689e6404d28ef9]::panic::catch_unwind::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}>, core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x5b3e0f2942cb - test[a24b3028667022f7]::run_test_in_process
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:747:27
[INFO] [stdout]   31:     0x5b3e0f2942cb - test[a24b3028667022f7]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:668:43
[INFO] [stdout]   32:     0x5b3e0f28d9e4 - test[a24b3028667022f7]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:698:41
[INFO] [stdout]   33:     0x5b3e0f28d9e4 - std[29689e6404d28ef9]::sys::backtrace::__rust_begin_short_backtrace::<test[a24b3028667022f7]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   34:     0x5b3e0f296ed2 - std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked::<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   35:     0x5b3e0f296ed2 - <core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   36:     0x5b3e0f296ed2 - std[29689e6404d28ef9]::panicking::catch_unwind::do_call::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:581:40
[INFO] [stdout]   37:     0x5b3e0f296ed2 - std[29689e6404d28ef9]::panicking::catch_unwind::<(), core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:544:19
[INFO] [stdout]   38:     0x5b3e0f296ed2 - std[29689e6404d28ef9]::panic::catch_unwind::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x5b3e0f296ed2 - std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked::<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   40:     0x5b3e0f296ed2 - <std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1} as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x5b3e0f2fe4bf - <alloc[9d7caffeb3b5d2c6]::boxed::Box<dyn core[e929cb53b82a81ca]::ops::function::FnOnce<(), Output = ()> + core[e929cb53b82a81ca]::marker::Send> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/alloc/src/boxed.rs:2271:9
[INFO] [stdout]   42:     0x5b3e0f2fe4bf - <std[29689e6404d28ef9]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   43:     0x7349f695caa4 - <unknown>
[INFO] [stdout]   44:     0x7349f69e9a64 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     evaluator::tests::it_eval_function_application
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 24 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8cfafef16c577aa25038517d2d325b20dbfafcb72829c68ec94fc827c831f2f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cfafef16c577aa25038517d2d325b20dbfafcb72829c68ec94fc827c831f2f5", kill_on_drop: false }`
[INFO] [stdout] 8cfafef16c577aa25038517d2d325b20dbfafcb72829c68ec94fc827c831f2f5
