[INFO] updating cached repository https://github.com/44smkn/ironmonkey
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/44smkn/ironmonkey
[INFO] [stderr]    4e287d8..52881ad  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 52881ad0d42a914030cd401886e65958ac00d0b7
[INFO] checking 44smkn/ironmonkey against master#fe6d05a8b32f5c66c427ca524dbcce5a7145f87e for pr-64327
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2F44smkn%2Fironmonkey" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/44smkn/ironmonkey on toolchain fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[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 work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/44smkn/ironmonkey already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f3ae12ceeb6582bb821fc329738530ce9aec3d9a30a1afba21d79817716f9342
[INFO] running `"docker" "start" "-a" "f3ae12ceeb6582bb821fc329738530ce9aec3d9a30a1afba21d79817716f9342"`
[INFO] [stderr]     Checking ironmonkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `mem`
[INFO] [stderr]  --> src/lexer.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{mem, fmt};
[INFO] [stderr]   |           ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::ast::Node`
[INFO] [stderr]  --> src/parser.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::ast::Node;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `mem`
[INFO] [stderr]  --> src/lexer.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{mem, fmt};
[INFO] [stderr]   |           ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LetStatement`
[INFO] [stderr]  --> src/ast.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     LetStatement(LetStatement),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ReturnStatement`
[INFO] [stderr]  --> src/ast.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     ReturnStatement(ReturnStatement),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Illegal`
[INFO] [stderr]  --> src/ast.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     Illegal,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Identifer`
[INFO] [stderr]   --> src/ast.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     Identifer(Identifer),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Illegal`
[INFO] [stderr]   --> src/ast.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Illegal,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/ast.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     pub fn new(token: Box<Token>) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/parser.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn new(lexer: Lexer) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `errors`
[INFO] [stderr]   --> src/parser.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn errors(&self) -> Vec<String> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `peek_error`
[INFO] [stderr]   --> src/parser.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn peek_error(&mut self, token_type: &TokenType) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `next_token`
[INFO] [stderr]   --> src/parser.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn next_token(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `expect_peek`
[INFO] [stderr]   --> src/parser.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn expect_peek(&mut self, token: TokenType) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `peek_token_is`
[INFO] [stderr]   --> src/parser.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn peek_token_is(&mut self, token: &TokenType) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cur_token_is`
[INFO] [stderr]   --> src/parser.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn cur_token_is(&mut self, token: TokenType) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_program`
[INFO] [stderr]   --> src/parser.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn parse_program(&mut self) -> Program {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_statement`
[INFO] [stderr]   --> src/parser.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn parse_statement(&mut self) -> StatementType {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_let_statement`
[INFO] [stderr]   --> src/parser.rs:94:5
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn parse_let_statement(&mut self) -> StatementType {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_return_statement`
[INFO] [stderr]    --> src/parser.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn parse_return_statement(&mut self) -> StatementType {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `discover_token_type`
[INFO] [stderr]    --> src/parser.rs:146:1
[INFO] [stderr]     |
[INFO] [stderr] 146 | fn discover_token_type(token: &Option<Box<Token>>) -> TokenType {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `"docker" "inspect" "f3ae12ceeb6582bb821fc329738530ce9aec3d9a30a1afba21d79817716f9342"`
[INFO] running `"docker" "rm" "-f" "f3ae12ceeb6582bb821fc329738530ce9aec3d9a30a1afba21d79817716f9342"`
[INFO] [stdout] f3ae12ceeb6582bb821fc329738530ce9aec3d9a30a1afba21d79817716f9342