[INFO] cloning repository https://github.com/maraloon/php-intepreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maraloon/php-intepreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaraloon%2Fphp-intepreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaraloon%2Fphp-intepreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8ca231ddf8b0b14998928922644af5f7eb3c34d9
[INFO] testing maraloon/php-intepreter against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaraloon%2Fphp-intepreter" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maraloon/php-intepreter on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/maraloon/php-intepreter
[INFO] finished tweaking git repo https://github.com/maraloon/php-intepreter
[INFO] tweaked toml for git repo https://github.com/maraloon/php-intepreter written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/maraloon/php-intepreter 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" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba153a829c205dfed5576fa2d3b0249b65b110d1e0bd9af00c7aae19ef317fce
[INFO] running `Command { std: "docker" "start" "-a" "ba153a829c205dfed5576fa2d3b0249b65b110d1e0bd9af00c7aae19ef317fce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba153a829c205dfed5576fa2d3b0249b65b110d1e0bd9af00c7aae19ef317fce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba153a829c205dfed5576fa2d3b0249b65b110d1e0bd9af00c7aae19ef317fce", kill_on_drop: false }`
[INFO] [stdout] ba153a829c205dfed5576fa2d3b0249b65b110d1e0bd9af00c7aae19ef317fce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3e705884bec7e90b4095983e91bb697cd511194218214bdab0164dc760ce8dd
[INFO] running `Command { std: "docker" "start" "-a" "c3e705884bec7e90b4095983e91bb697cd511194218214bdab0164dc760ce8dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling users v0.11.0
[INFO] [stderr]    Compiling php-intepreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `ExpressionNode` is never used
[INFO] [stdout]  --> src/ast/ast.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | trait ExpressionNode: Node {}
[INFO] [stdout]   |       ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]   --> src/parser/parser.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Parser {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/parser/parser.rs:25:12
[INFO] [stdout]     |
[INFO] [stdout] 24  | impl Parser {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] 25  |     pub fn new(mut lexer: Lexer) -> Parser {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 37  |     pub fn parse_program(&mut self) -> ast::Program {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54  |     fn next_token(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59  |     fn parse_statement(&mut self) -> Result<Statement, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68  |     fn parse_expression(&mut self) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75  |     fn parse_var_statement(&mut self, var_name: Value) -> Result<Statement, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90  |     fn parse_return_statement(&mut self) -> Result<Statement, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     fn expect_peek(&mut self, token: Token) -> Result<(), String> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "c3e705884bec7e90b4095983e91bb697cd511194218214bdab0164dc760ce8dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3e705884bec7e90b4095983e91bb697cd511194218214bdab0164dc760ce8dd", kill_on_drop: false }`
[INFO] [stdout] c3e705884bec7e90b4095983e91bb697cd511194218214bdab0164dc760ce8dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33f431706c7fff8bd182e160e4f27ddb9e182e6f6a272ba25257d153b36e9fc0
[INFO] running `Command { std: "docker" "start" "-a" "33f431706c7fff8bd182e160e4f27ddb9e182e6f6a272ba25257d153b36e9fc0", kill_on_drop: false }`
[INFO] [stderr]    Compiling php-intepreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `ExpressionNode` is never used
[INFO] [stdout]  --> src/ast/ast.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | trait ExpressionNode: Node {}
[INFO] [stdout]   |       ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "33f431706c7fff8bd182e160e4f27ddb9e182e6f6a272ba25257d153b36e9fc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33f431706c7fff8bd182e160e4f27ddb9e182e6f6a272ba25257d153b36e9fc0", kill_on_drop: false }`
[INFO] [stdout] 33f431706c7fff8bd182e160e4f27ddb9e182e6f6a272ba25257d153b36e9fc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ee8efd56c2f3aa135839c08bbc94970ad77a387ae59d0c7f44400ba5e023f8a8
[INFO] running `Command { std: "docker" "start" "-a" "ee8efd56c2f3aa135839c08bbc94970ad77a387ae59d0c7f44400ba5e023f8a8", kill_on_drop: false }`
[INFO] [stderr] warning: trait `ExpressionNode` is never used
[INFO] [stderr]  --> src/ast/ast.rs:6:7
[INFO] [stderr]   |
[INFO] [stderr] 6 | trait ExpressionNode: Node {}
[INFO] [stderr]   |       ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `php-intepreter` (bin "php-intepreter" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/php_intepreter-b26266f5002bbb08)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test parser::parser::tests::return_statement ... ok
[INFO] [stdout] test lexer::lexer::tests::get_next_token ... ok
[INFO] [stdout] test lexer::lexer::tests::false_var_name ... ok
[INFO] [stdout] test parser::parser::tests::var_statement ... ok
[INFO] [stderr] 
[INFO] [stderr] thread 'ast::ast::tests::string' has overflowed its stack
[INFO] [stderr] fatal runtime error: stack overflow
[INFO] [stderr] error: test failed, to rerun pass `--bin php-intepreter`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/php_intepreter-b26266f5002bbb08` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "ee8efd56c2f3aa135839c08bbc94970ad77a387ae59d0c7f44400ba5e023f8a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee8efd56c2f3aa135839c08bbc94970ad77a387ae59d0c7f44400ba5e023f8a8", kill_on_drop: false }`
[INFO] [stdout] ee8efd56c2f3aa135839c08bbc94970ad77a387ae59d0c7f44400ba5e023f8a8
[INFO] testing maraloon/php-intepreter against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaraloon%2Fphp-intepreter" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maraloon/php-intepreter on toolchain b642703cf9526da1e72c0b6755753b939a9c6b6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/maraloon/php-intepreter
[INFO] finished tweaking git repo https://github.com/maraloon/php-intepreter
[INFO] tweaked toml for git repo https://github.com/maraloon/php-intepreter written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/maraloon/php-intepreter 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" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20355bfe748c2dbf7f3d49c77407f19b7d7069e3d7044f60329dd702cd2cee8f
[INFO] running `Command { std: "docker" "start" "-a" "20355bfe748c2dbf7f3d49c77407f19b7d7069e3d7044f60329dd702cd2cee8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20355bfe748c2dbf7f3d49c77407f19b7d7069e3d7044f60329dd702cd2cee8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20355bfe748c2dbf7f3d49c77407f19b7d7069e3d7044f60329dd702cd2cee8f", kill_on_drop: false }`
[INFO] [stdout] 20355bfe748c2dbf7f3d49c77407f19b7d7069e3d7044f60329dd702cd2cee8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f22db126ec31e9981c77c7a428d5bab49e21fc9cd67e46d2e1b5904707081864
[INFO] running `Command { std: "docker" "start" "-a" "f22db126ec31e9981c77c7a428d5bab49e21fc9cd67e46d2e1b5904707081864", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling users v0.11.0
[INFO] [stderr]    Compiling php-intepreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `ExpressionNode` is never used
[INFO] [stdout]  --> src/ast/ast.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | trait ExpressionNode: Node {}
[INFO] [stdout]   |       ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]   --> src/parser/parser.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Parser {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/parser/parser.rs:25:12
[INFO] [stdout]     |
[INFO] [stdout] 24  | impl Parser {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] 25  |     pub fn new(mut lexer: Lexer) -> Parser {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 37  |     pub fn parse_program(&mut self) -> ast::Program {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54  |     fn next_token(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59  |     fn parse_statement(&mut self) -> Result<Statement, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68  |     fn parse_expression(&mut self) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75  |     fn parse_var_statement(&mut self, var_name: Value) -> Result<Statement, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90  |     fn parse_return_statement(&mut self) -> Result<Statement, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     fn expect_peek(&mut self, token: Token) -> Result<(), String> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "f22db126ec31e9981c77c7a428d5bab49e21fc9cd67e46d2e1b5904707081864", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f22db126ec31e9981c77c7a428d5bab49e21fc9cd67e46d2e1b5904707081864", kill_on_drop: false }`
[INFO] [stdout] f22db126ec31e9981c77c7a428d5bab49e21fc9cd67e46d2e1b5904707081864
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ea10f43b59bf022b38945c13e7f85ddd73d38fb427e4a88b5ee002b6d45ae30
[INFO] running `Command { std: "docker" "start" "-a" "7ea10f43b59bf022b38945c13e7f85ddd73d38fb427e4a88b5ee002b6d45ae30", kill_on_drop: false }`
[INFO] [stderr]    Compiling php-intepreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `ExpressionNode` is never used
[INFO] [stdout]  --> src/ast/ast.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | trait ExpressionNode: Node {}
[INFO] [stdout]   |       ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "7ea10f43b59bf022b38945c13e7f85ddd73d38fb427e4a88b5ee002b6d45ae30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ea10f43b59bf022b38945c13e7f85ddd73d38fb427e4a88b5ee002b6d45ae30", kill_on_drop: false }`
[INFO] [stdout] 7ea10f43b59bf022b38945c13e7f85ddd73d38fb427e4a88b5ee002b6d45ae30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 159d5d260318c7b92bae00426b63c9b8ff8fceb5550b54b5fd43a59e37718e02
[INFO] running `Command { std: "docker" "start" "-a" "159d5d260318c7b92bae00426b63c9b8ff8fceb5550b54b5fd43a59e37718e02", kill_on_drop: false }`
[INFO] [stderr] warning: trait `ExpressionNode` is never used
[INFO] [stderr]  --> src/ast/ast.rs:6:7
[INFO] [stderr]   |
[INFO] [stderr] 6 | trait ExpressionNode: Node {}
[INFO] [stderr]   |       ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `php-intepreter` (bin "php-intepreter" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/php_intepreter-b26266f5002bbb08)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test lexer::lexer::tests::false_var_name ... ok
[INFO] [stdout] test lexer::lexer::tests::get_next_token ... ok
[INFO] [stdout] test parser::parser::tests::return_statement ... ok
[INFO] [stdout] test parser::parser::tests::var_statement ... ok
[INFO] [stderr] 
[INFO] [stderr] thread 'ast::ast::tests::string' has overflowed its stack
[INFO] [stderr] fatal runtime error: stack overflow
[INFO] [stderr] error: test failed, to rerun pass `--bin php-intepreter`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/php_intepreter-b26266f5002bbb08` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "159d5d260318c7b92bae00426b63c9b8ff8fceb5550b54b5fd43a59e37718e02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "159d5d260318c7b92bae00426b63c9b8ff8fceb5550b54b5fd43a59e37718e02", kill_on_drop: false }`
[INFO] [stdout] 159d5d260318c7b92bae00426b63c9b8ff8fceb5550b54b5fd43a59e37718e02
