[INFO] cloning repository https://github.com/44smkn/ironmonkey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/44smkn/ironmonkey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F44smkn%2Fironmonkey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F44smkn%2Fironmonkey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 99cfc8da1a65836d9c92e59f8ce86d5d2f28d129
[INFO] checking 44smkn/ironmonkey against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F44smkn%2Fironmonkey" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/44smkn/ironmonkey on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/44smkn/ironmonkey
[INFO] finished tweaking git repo https://github.com/44smkn/ironmonkey
[INFO] tweaked toml for git repo https://github.com/44smkn/ironmonkey written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/44smkn/ironmonkey already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8cb68cd1006c17f72b4901ac959bc972d2078c8a594515b7b5728494cc453e0a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8cb68cd1006c17f72b4901ac959bc972d2078c8a594515b7b5728494cc453e0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cb68cd1006c17f72b4901ac959bc972d2078c8a594515b7b5728494cc453e0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cb68cd1006c17f72b4901ac959bc972d2078c8a594515b7b5728494cc453e0a", kill_on_drop: false }`
[INFO] [stdout] 8cb68cd1006c17f72b4901ac959bc972d2078c8a594515b7b5728494cc453e0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9673f2970be980c5b2b26167c4ace972e47d1f6f73719d27d8dfd23ea810eba3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9673f2970be980c5b2b26167c4ace972e47d1f6f73719d27d8dfd23ea810eba3", kill_on_drop: false }`
[INFO] [stderr]     Checking ironmonkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/ast.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/ast.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mem`
[INFO] [stdout]  --> src/lexer.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{mem, fmt};
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::Node`
[INFO] [stdout]  --> src/parser.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::ast::Node;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/ast.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/ast.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mem`
[INFO] [stdout]  --> src/lexer.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{mem, fmt};
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LetStatement`
[INFO] [stdout]  --> src/ast.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     LetStatement(LetStatement),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ReturnStatement`
[INFO] [stdout]  --> src/ast.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ReturnStatement(ReturnStatement),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ExpressionStatement`
[INFO] [stdout]  --> src/ast.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ExpressionStatement(ExpressionStatement),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Identifer`
[INFO] [stdout]   --> src/ast.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Identifer(Identifer),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Illegal`
[INFO] [stdout]   --> src/ast.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Illegal,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/ast.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn new(token: Box<Token>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/parser.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn new(lexer: Lexer) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `errors`
[INFO] [stdout]   --> src/parser.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn errors(&self) -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek_error`
[INFO] [stdout]   --> src/parser.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn peek_error(&mut self, token_type: &TokenType) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_token`
[INFO] [stdout]   --> src/parser.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn next_token(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `expect_peek`
[INFO] [stdout]   --> src/parser.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn expect_peek(&mut self, token: TokenType) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek_token_is`
[INFO] [stdout]   --> src/parser.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn peek_token_is(&mut self, token: &TokenType) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cur_token_is`
[INFO] [stdout]   --> src/parser.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn cur_token_is(&mut self, token: TokenType) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_program`
[INFO] [stdout]   --> src/parser.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn parse_program(&mut self) -> Program {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_statement`
[INFO] [stdout]   --> src/parser.rs:88:8
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn parse_statement(&mut self) -> StatementType {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_let_statement`
[INFO] [stdout]    --> src/parser.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn parse_let_statement(&mut self) -> StatementType {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_return_statement`
[INFO] [stdout]    --> src/parser.rs:135:8
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn parse_return_statement(&mut self) -> StatementType {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `register_prefix`
[INFO] [stdout]    --> src/parser.rs:151:8
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn register_prefix(&mut self, token_type: TokenType, func: PrefixParseFn) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `register_infix`
[INFO] [stdout]    --> src/parser.rs:155:8
[INFO] [stdout]     |
[INFO] [stdout] 155 |     fn register_infix(&mut self, token_type: TokenType, func: InfixParseFn) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_expression_statement`
[INFO] [stdout]    --> src/parser.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn parse_expression_statement(&mut self) -> StatementType {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_expression`
[INFO] [stdout]    --> src/parser.rs:174:8
[INFO] [stdout]     |
[INFO] [stdout] 174 |     fn parse_expression(&mut self) -> ExpressionType {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `OperatorPriority`
[INFO] [stdout]    --> src/parser.rs:179:6
[INFO] [stdout]     |
[INFO] [stdout] 179 | enum OperatorPriority {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `discover_token_type`
[INFO] [stdout]    --> src/parser.rs:189:4
[INFO] [stdout]     |
[INFO] [stdout] 189 | fn discover_token_type(token: &Option<Box<Token>>) -> TokenType {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `register_prefix`
[INFO] [stdout]    --> src/parser.rs:151:8
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn register_prefix(&mut self, token_type: TokenType, func: PrefixParseFn) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `register_infix`
[INFO] [stdout]    --> src/parser.rs:155:8
[INFO] [stdout]     |
[INFO] [stdout] 155 |     fn register_infix(&mut self, token_type: TokenType, func: InfixParseFn) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `OperatorPriority`
[INFO] [stdout]    --> src/parser.rs:179:6
[INFO] [stdout]     |
[INFO] [stdout] 179 | enum OperatorPriority {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "9673f2970be980c5b2b26167c4ace972e47d1f6f73719d27d8dfd23ea810eba3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9673f2970be980c5b2b26167c4ace972e47d1f6f73719d27d8dfd23ea810eba3", kill_on_drop: false }`
[INFO] [stdout] 9673f2970be980c5b2b26167c4ace972e47d1f6f73719d27d8dfd23ea810eba3