[INFO] cloning repository https://github.com/EvanErcolano/rust-monkey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EvanErcolano/rust-monkey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEvanErcolano%2Frust-monkey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEvanErcolano%2Frust-monkey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fce4b09796d96cdd84f11efebee98a1600363da5
[INFO] testing EvanErcolano/rust-monkey against beta-2024-12-08 for beta-1.84.0-4-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEvanErcolano%2Frust-monkey" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/EvanErcolano/rust-monkey on toolchain beta-2024-12-08
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-12-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/EvanErcolano/rust-monkey
[INFO] finished tweaking git repo https://github.com/EvanErcolano/rust-monkey
[INFO] tweaked toml for git repo https://github.com/EvanErcolano/rust-monkey written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/EvanErcolano/rust-monkey 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" "+beta-2024-12-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad16fbed1139d5e3c1c7175139b02508748efd633fd3158c5cc3c812b24ad851
[INFO] running `Command { std: "docker" "start" "-a" "ad16fbed1139d5e3c1c7175139b02508748efd633fd3158c5cc3c812b24ad851", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad16fbed1139d5e3c1c7175139b02508748efd633fd3158c5cc3c812b24ad851", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad16fbed1139d5e3c1c7175139b02508748efd633fd3158c5cc3c812b24ad851", kill_on_drop: false }`
[INFO] [stdout] ad16fbed1139d5e3c1c7175139b02508748efd633fd3158c5cc3c812b24ad851
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c94785b479873d0302efbd923ee604663b9d4e51a5362c47337511c5e1c31f28
[INFO] running `Command { std: "docker" "start" "-a" "c94785b479873d0302efbd923ee604663b9d4e51a5362c47337511c5e1c31f28", kill_on_drop: false }`
[INFO] [stderr]    Compiling monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `is_identifier`, `is_assign`, and `is_semicolon` are never used
[INFO] [stdout]   --> src/token.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Token {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 16 |     pub fn is_identifier(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn is_assign(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn is_semicolon(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `parse_program`, `parse_statement`, and `parse_let_statement` are never used
[INFO] [stdout]   --> src/parser.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Parser {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn parse_program(&mut self) -> Program {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn parse_statement(&mut self) -> Option<Statement> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     fn parse_let_statement(&mut self) -> Option<Statement> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Program` is never constructed
[INFO] [stdout]  --> src/ast.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Program {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Statement` is never used
[INFO] [stdout]  --> src/ast.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub enum Statement {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Statement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expression` is never used
[INFO] [stdout]   --> src/ast.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum Expression {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `curToken` should have a snake case name
[INFO] [stdout]  --> src/parser.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     curToken: token::Token,
[INFO] [stdout]   |     ^^^^^^^^ help: convert the identifier to snake case: `cur_token`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `peekToken` should have a snake case name
[INFO] [stdout]  --> src/parser.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     peekToken: token::Token,
[INFO] [stdout]   |     ^^^^^^^^^ help: convert the identifier to snake case: `peek_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "c94785b479873d0302efbd923ee604663b9d4e51a5362c47337511c5e1c31f28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c94785b479873d0302efbd923ee604663b9d4e51a5362c47337511c5e1c31f28", kill_on_drop: false }`
[INFO] [stdout] c94785b479873d0302efbd923ee604663b9d4e51a5362c47337511c5e1c31f28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e70fbe0e08f60c072109e243d6edc13e1041c01e827ea748646239c6ec8e7c02
[INFO] running `Command { std: "docker" "start" "-a" "e70fbe0e08f60c072109e243d6edc13e1041c01e827ea748646239c6ec8e7c02", kill_on_drop: false }`
[INFO] [stderr]    Compiling monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `parse_statement` is never used
[INFO] [stdout]   --> src/parser.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Parser {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn parse_statement(&mut self) -> Option<Statement> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `value` are never read
[INFO] [stdout]   --> src/ast.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Let {name: token::Token, value: Box<Expression>},
[INFO] [stdout]    |     ---  ^^^^                ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Expression` and `Return` are never constructed
[INFO] [stdout]   --> src/ast.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub enum Statement {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] 10 |     Expression,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 11 |     Return,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/ast.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |     IntegerLiteral(usize),
[INFO] [stdout]    |     -------------- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 17 |     IntegerLiteral(()),
[INFO] [stdout]    |                    ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `InfixExpression` is never constructed
[INFO] [stdout]   --> src/ast.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum Expression {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] 17 |     IntegerLiteral(usize),
[INFO] [stdout] 18 |     InfixExpression { left: Box<Expression>, operator: token::Token, right: Box<Expression> },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `curToken` should have a snake case name
[INFO] [stdout]  --> src/parser.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     curToken: token::Token,
[INFO] [stdout]   |     ^^^^^^^^ help: convert the identifier to snake case: `cur_token`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `peekToken` should have a snake case name
[INFO] [stdout]  --> src/parser.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     peekToken: token::Token,
[INFO] [stdout]   |     ^^^^^^^^^ help: convert the identifier to snake case: `peek_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "e70fbe0e08f60c072109e243d6edc13e1041c01e827ea748646239c6ec8e7c02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e70fbe0e08f60c072109e243d6edc13e1041c01e827ea748646239c6ec8e7c02", kill_on_drop: false }`
[INFO] [stdout] e70fbe0e08f60c072109e243d6edc13e1041c01e827ea748646239c6ec8e7c02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 63f53befe3fcf21adae41da3a8955855f3ed61ceb1c3ca72a55e676b4f87c814
[INFO] running `Command { std: "docker" "start" "-a" "63f53befe3fcf21adae41da3a8955855f3ed61ceb1c3ca72a55e676b4f87c814", kill_on_drop: false }`
[INFO] [stderr] warning: method `parse_statement` is never used
[INFO] [stderr]   --> src/parser.rs:38:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl Parser {
[INFO] [stderr]    | ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 38 |     pub fn parse_statement(&mut self) -> Option<Statement> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `name` and `value` are never read
[INFO] [stderr]   --> src/ast.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Let {name: token::Token, value: Box<Expression>},
[INFO] [stderr]    |     ---  ^^^^                ^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     fields in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Statement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Expression` and `Return` are never constructed
[INFO] [stderr]   --> src/ast.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 9  | pub enum Statement {
[INFO] [stderr]    |          --------- variants in this enum
[INFO] [stderr] 10 |     Expression,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 11 |     Return,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Statement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/ast.rs:17:20
[INFO] [stderr]    |
[INFO] [stderr] 17 |     IntegerLiteral(usize),
[INFO] [stderr]    |     -------------- ^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Expression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 17 |     IntegerLiteral(()),
[INFO] [stderr]    |                    ~~
[INFO] [stderr] 
[INFO] [stderr] warning: variant `InfixExpression` is never constructed
[INFO] [stderr]   --> src/ast.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub enum Expression {
[INFO] [stderr]    |          ---------- variant in this enum
[INFO] [stderr] 17 |     IntegerLiteral(usize),
[INFO] [stderr] 18 |     InfixExpression { left: Box<Expression>, operator: token::Token, right: Box<Expression> },
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Expression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `curToken` should have a snake case name
[INFO] [stderr]  --> src/parser.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     curToken: token::Token,
[INFO] [stderr]   |     ^^^^^^^^ help: convert the identifier to snake case: `cur_token`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `peekToken` should have a snake case name
[INFO] [stderr]  --> src/parser.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     peekToken: token::Token,
[INFO] [stderr]   |     ^^^^^^^^^ help: convert the identifier to snake case: `peek_token`
[INFO] [stderr] 
[INFO] [stderr] warning: `monkey` (bin "monkey" test) generated 7 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/monkey-1291f96842654e86)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test lexer::test::test_integer_addition ... ok
[INFO] [stdout] test lexer::test::test_let_statement ... ok
[INFO] [stdout] test parser::test::test_let_statement ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- parser::test::test_let_statement stdout ----
[INFO] [stdout] thread 'parser::test::test_let_statement' panicked at src/parser.rs:26:44:
[INFO] [stdout] called `Option::unwrap()` on a `None` value
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x63e528bf6e9a - std::backtrace_rs::backtrace::libunwind::trace::h8810477743020387
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x63e528bf6e9a - std::backtrace_rs::backtrace::trace_unsynchronized::h3aa55355dd6c54a6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x63e528bf6e9a - std::sys::backtrace::_print_fmt::h8588b0f62410823f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x63e528bf6e9a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h98c26ac25ffe89bb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x63e528c1c903 - core::fmt::rt::Argument::fmt::hf95377f4aebd453b
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x63e528c1c903 - core::fmt::write::h0dd5f6e2238c7982
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/mod.rs:1189:21
[INFO] [stdout]    6:     0x63e528bf4033 - std::io::Write::write_fmt::h03bb0ca26e6faf8c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/io/mod.rs:1884:15
[INFO] [stdout]    7:     0x63e528bf6ce2 - std::sys::backtrace::BacktraceLock::print::h5c19c1c038ee186d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x63e528bf831d - std::panicking::default_hook::{{closure}}::h77172f079a1fcb13
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x63e528bf8127 - std::panicking::default_hook::he5f8e3b203ccddba
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:292:9
[INFO] [stdout]   10:     0x63e528bc1a57 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7a3c7b4a1ae77f2f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9
[INFO] [stdout]   11:     0x63e528bc1a57 - test::test_main::{{closure}}::hf0d3b69ae9b353d1
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x63e528bf89c8 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6332e82e7b189abd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9
[INFO] [stdout]   13:     0x63e528bf89c8 - std::panicking::rust_panic_with_hook::h53863d4e9018df39
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:809:13
[INFO] [stdout]   14:     0x63e528bf8756 - std::panicking::begin_panic_handler::{{closure}}::h67280e6fa0757873
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:667:13
[INFO] [stdout]   15:     0x63e528bf7379 - std::sys::backtrace::__rust_end_short_backtrace::h1dac3f54d6fbbeb2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x63e528bf841c - rust_begin_unwind
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:665:5
[INFO] [stdout]   17:     0x63e528b7eab0 - core::panicking::panic_fmt::h6792bd1b2bf01041
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panicking.rs:76:14
[INFO] [stdout]   18:     0x63e528b7eb3c - core::panicking::panic::hbb5c236a846c507c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panicking.rs:148:5
[INFO] [stdout]   19:     0x63e528b7ea29 - core::option::unwrap_failed::hc5b7b0e3b50bafe9
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/option.rs:2009:5
[INFO] [stdout]   20:     0x63e528b86813 - core::option::Option<T>::unwrap::h7a1042561bfff356
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/option.rs:972:21
[INFO] [stdout]   21:     0x63e528b86813 - monkey::parser::Parser::next_token::hb33c1430495509e3
[INFO] [stdout]                                at /opt/rustwide/workdir/src/parser.rs:26:26
[INFO] [stdout]   22:     0x63e528b86ad6 - monkey::parser::Parser::parse_let_statement::h8560e9d670090052
[INFO] [stdout]                                at /opt/rustwide/workdir/src/parser.rs:70:13
[INFO] [stdout]   23:     0x63e528b868fb - monkey::parser::Parser::parse_program::h2196d5f1d7a2bae5
[INFO] [stdout]                                at /opt/rustwide/workdir/src/parser.rs:34:27
[INFO] [stdout]   24:     0x63e528b88048 - monkey::parser::test::test_let_statement::h9d578d47f040c5a1
[INFO] [stdout]                                at /opt/rustwide/workdir/src/parser.rs:87:23
[INFO] [stdout]   25:     0x63e528b87e37 - monkey::parser::test::test_let_statement::{{closure}}::h2e6a061c28e113c2
[INFO] [stdout]                                at /opt/rustwide/workdir/src/parser.rs:84:28
[INFO] [stdout]   26:     0x63e528b84486 - core::ops::function::FnOnce::call_once::h8504c590cce1701a
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x63e528bc657b - core::ops::function::FnOnce::call_once::h871bf86719ec9aa4
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   28:     0x63e528bc657b - test::__rust_begin_short_backtrace::h2167df1e2b7d76fd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:632:18
[INFO] [stdout]   29:     0x63e528bc5f68 - test::run_test_in_process::{{closure}}::h15d92f75a3adfb79
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:60
[INFO] [stdout]   30:     0x63e528bc5f68 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb6c8955835a8dbbb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   31:     0x63e528bc5f68 - std::panicking::try::do_call::hc79d0fc888a0bd30
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   32:     0x63e528bc5f68 - std::panicking::try::hb8a7878e3a8589d6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   33:     0x63e528bc5f68 - std::panic::catch_unwind::hb8e4600ff0ff5cfa
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   34:     0x63e528bc5f68 - test::run_test_in_process::hc2900b0b18688dd6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:27
[INFO] [stdout]   35:     0x63e528bc5f68 - test::run_test::{{closure}}::hac2a9cb07be3d48d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:576:43
[INFO] [stdout]   36:     0x63e528b89a0a - test::run_test::{{closure}}::h4a5b729e66a38cd8
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:606:41
[INFO] [stdout]   37:     0x63e528b89a0a - std::sys::backtrace::__rust_begin_short_backtrace::h0496fb742492f573
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   38:     0x63e528b8d384 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hbb6d257c550a54bd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:561:17
[INFO] [stdout]   39:     0x63e528b8d384 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h46696fe4a6832328
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   40:     0x63e528b8d384 - std::panicking::try::do_call::h2625a51b667bfb64
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   41:     0x63e528b8d384 - std::panicking::try::hb956a59a1973aa4c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   42:     0x63e528b8d384 - std::panic::catch_unwind::h64f3b9d1067ef6a0
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   43:     0x63e528b8d384 - std::thread::Builder::spawn_unchecked_::{{closure}}::h42b2841295b6c0b2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:559:30
[INFO] [stdout]   44:     0x63e528b8d384 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6127de71b8124639
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   45:     0x63e528bfc90b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h42f0ba71002a1b2c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9
[INFO] [stdout]   46:     0x63e528bfc90b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::had9e47d7a3dcecb8
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9
[INFO] [stdout]   47:     0x63e528bfc90b - std::sys::pal::unix::thread::Thread::new::thread_start::h48cf765408f6f5f2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   48:     0x7d5470f67ac3 - <unknown>
[INFO] [stdout]   49:     0x7d5470ff8a04 - clone
[INFO] [stdout]   50:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     parser::test::test_let_statement
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin monkey`
[INFO] running `Command { std: "docker" "inspect" "63f53befe3fcf21adae41da3a8955855f3ed61ceb1c3ca72a55e676b4f87c814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63f53befe3fcf21adae41da3a8955855f3ed61ceb1c3ca72a55e676b4f87c814", kill_on_drop: false }`
[INFO] [stdout] 63f53befe3fcf21adae41da3a8955855f3ed61ceb1c3ca72a55e676b4f87c814
