[INFO] updating cached repository https://github.com/RobertObkircher/ro-compiler
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 169020565d26d135f2a7470c6215e08940c42600
[INFO] checking RobertObkircher/ro-compiler against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRobertObkircher%2Fro-compiler" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RobertObkircher/ro-compiler on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/RobertObkircher/ro-compiler
[INFO] finished tweaking git repo https://github.com/RobertObkircher/ro-compiler
[INFO] tweaked toml for git repo https://github.com/RobertObkircher/ro-compiler written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/RobertObkircher/ro-compiler already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8726f81de4121f67ca55ce3a560e6496b5a274078fc4f877fe605e2e00d62a13
[INFO] running `"docker" "start" "-a" "8726f81de4121f67ca55ce3a560e6496b5a274078fc4f877fe605e2e00d62a13"`
[INFO] [stderr]     Checking ro-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `crate::ast::*`
[INFO] [stderr]  --> src/printc.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::ast::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::ast::*`
[INFO] [stderr]  --> src/printc.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::ast::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `colon`
[INFO] [stderr]    --> src/parser.rs:481:13
[INFO] [stderr]     |
[INFO] [stderr] 481 |         let colon = expect!(self, TokenType::Colon, "help: insert `:`", true);
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_colon`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `colon`
[INFO] [stderr]    --> src/parser.rs:481:13
[INFO] [stderr]     |
[INFO] [stderr] 481 |         let colon = expect!(self, TokenType::Colon, "help: insert `:`", true);
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_colon`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_ast`
[INFO] [stderr]    --> src/ast.rs:261:8
[INFO] [stderr]     |
[INFO] [stderr] 261 | pub fn walk_ast<'a, V: Visitor<'a>>(visitor: &mut V, ast: &'a Ast) {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_top_level`
[INFO] [stderr]    --> src/ast.rs:265:8
[INFO] [stderr]     |
[INFO] [stderr] 265 | pub fn walk_top_level<'a, V: Visitor<'a>>(visitor: &mut V, top_level: &'a TopLevel) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_declaration`
[INFO] [stderr]    --> src/ast.rs:271:8
[INFO] [stderr]     |
[INFO] [stderr] 271 | pub fn walk_declaration<'a, V: Visitor<'a>>(visitor: &mut V, declaration: &'a Declaration) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_expression`
[INFO] [stderr]    --> src/ast.rs:276:8
[INFO] [stderr]     |
[INFO] [stderr] 276 | pub fn walk_expression<'a, V: Visitor<'a>>(visitor: &mut V, expression: &'a Expression) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_binary_expression`
[INFO] [stderr]    --> src/ast.rs:294:8
[INFO] [stderr]     |
[INFO] [stderr] 294 | pub fn walk_binary_expression<'a, V: Visitor<'a>>(visitor: &mut V, binary: &'a BinaryExpression) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_logical_expression`
[INFO] [stderr]    --> src/ast.rs:299:8
[INFO] [stderr]     |
[INFO] [stderr] 299 | pub fn walk_logical_expression<'a, V: Visitor<'a>>(
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_unary_expression`
[INFO] [stderr]    --> src/ast.rs:307:8
[INFO] [stderr]     |
[INFO] [stderr] 307 | pub fn walk_unary_expression<'a, V: Visitor<'a>>(visitor: &mut V, unary: &'a UnaryExpression) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_call_expression`
[INFO] [stderr]    --> src/ast.rs:311:8
[INFO] [stderr]     |
[INFO] [stderr] 311 | pub fn walk_call_expression<'a, V: Visitor<'a>>(visitor: &mut V, call: &'a CallExpression) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_name`
[INFO] [stderr]    --> src/ast.rs:316:8
[INFO] [stderr]     |
[INFO] [stderr] 316 | pub fn walk_name<'a, V: Visitor<'a>>(visitor: &mut V, name: &'a Name) {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_block_expression`
[INFO] [stderr]    --> src/ast.rs:320:8
[INFO] [stderr]     |
[INFO] [stderr] 320 | pub fn walk_block_expression<'a, V: Visitor<'a>>(visitor: &mut V, block: &'a BlockExpression) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_statement`
[INFO] [stderr]    --> src/ast.rs:324:8
[INFO] [stderr]     |
[INFO] [stderr] 324 | pub fn walk_statement<'a, V: Visitor<'a>>(visitor: &mut V, statement: &'a Statement) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_parameter`
[INFO] [stderr]    --> src/ast.rs:332:8
[INFO] [stderr]     |
[INFO] [stderr] 332 | pub fn walk_parameter<'a, V: Visitor<'a>>(visitor: &mut V, parameter: &'a Parameter) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_lambda`
[INFO] [stderr]    --> src/ast.rs:339:8
[INFO] [stderr]     |
[INFO] [stderr] 339 | pub fn walk_lambda<'a, V: Visitor<'a>>(visitor: &mut V, lambda: &'a Lambda) {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_if_expression`
[INFO] [stderr]    --> src/ast.rs:349:8
[INFO] [stderr]     |
[INFO] [stderr] 349 | pub fn walk_if_expression<'a, V: Visitor<'a>>(visitor: &mut V, expression: &'a IfExpression) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_while_statement`
[INFO] [stderr]    --> src/ast.rs:356:8
[INFO] [stderr]     |
[INFO] [stderr] 356 | pub fn walk_while_statement<'a, V: Visitor<'a>>(visitor: &mut V, statement: &'a WhileStatement) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_struct_expression`
[INFO] [stderr]    --> src/ast.rs:361:8
[INFO] [stderr]     |
[INFO] [stderr] 361 | pub fn walk_struct_expression<'a, V: Visitor<'a>>(
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_struct_member`
[INFO] [stderr]    --> src/ast.rs:368:8
[INFO] [stderr]     |
[INFO] [stderr] 368 | pub fn walk_struct_member<'a, V: Visitor<'a>>(visitor: &mut V, struct_member: &'a StructMember) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `warning_message`
[INFO] [stderr]    --> src/parser.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn warning_message(&mut self, start: usize, end: usize, title: String, message: &str) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `contains`
[INFO] [stderr]   --> src/token.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn contains(&self, offset: usize) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_ast`
[INFO] [stderr]    --> src/ast.rs:261:8
[INFO] [stderr]     |
[INFO] [stderr] 261 | pub fn walk_ast<'a, V: Visitor<'a>>(visitor: &mut V, ast: &'a Ast) {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_top_level`
[INFO] [stderr]    --> src/ast.rs:265:8
[INFO] [stderr]     |
[INFO] [stderr] 265 | pub fn walk_top_level<'a, V: Visitor<'a>>(visitor: &mut V, top_level: &'a TopLevel) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_declaration`
[INFO] [stderr]    --> src/ast.rs:271:8
[INFO] [stderr]     |
[INFO] [stderr] 271 | pub fn walk_declaration<'a, V: Visitor<'a>>(visitor: &mut V, declaration: &'a Declaration) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_expression`
[INFO] [stderr]    --> src/ast.rs:276:8
[INFO] [stderr]     |
[INFO] [stderr] 276 | pub fn walk_expression<'a, V: Visitor<'a>>(visitor: &mut V, expression: &'a Expression) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_binary_expression`
[INFO] [stderr]    --> src/ast.rs:294:8
[INFO] [stderr]     |
[INFO] [stderr] 294 | pub fn walk_binary_expression<'a, V: Visitor<'a>>(visitor: &mut V, binary: &'a BinaryExpression) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_logical_expression`
[INFO] [stderr]    --> src/ast.rs:299:8
[INFO] [stderr]     |
[INFO] [stderr] 299 | pub fn walk_logical_expression<'a, V: Visitor<'a>>(
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_unary_expression`
[INFO] [stderr]    --> src/ast.rs:307:8
[INFO] [stderr]     |
[INFO] [stderr] 307 | pub fn walk_unary_expression<'a, V: Visitor<'a>>(visitor: &mut V, unary: &'a UnaryExpression) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_call_expression`
[INFO] [stderr]    --> src/ast.rs:311:8
[INFO] [stderr]     |
[INFO] [stderr] 311 | pub fn walk_call_expression<'a, V: Visitor<'a>>(visitor: &mut V, call: &'a CallExpression) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_name`
[INFO] [stderr]    --> src/ast.rs:316:8
[INFO] [stderr]     |
[INFO] [stderr] 316 | pub fn walk_name<'a, V: Visitor<'a>>(visitor: &mut V, name: &'a Name) {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_block_expression`
[INFO] [stderr]    --> src/ast.rs:320:8
[INFO] [stderr]     |
[INFO] [stderr] 320 | pub fn walk_block_expression<'a, V: Visitor<'a>>(visitor: &mut V, block: &'a BlockExpression) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_statement`
[INFO] [stderr]    --> src/ast.rs:324:8
[INFO] [stderr]     |
[INFO] [stderr] 324 | pub fn walk_statement<'a, V: Visitor<'a>>(visitor: &mut V, statement: &'a Statement) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_parameter`
[INFO] [stderr]    --> src/ast.rs:332:8
[INFO] [stderr]     |
[INFO] [stderr] 332 | pub fn walk_parameter<'a, V: Visitor<'a>>(visitor: &mut V, parameter: &'a Parameter) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_lambda`
[INFO] [stderr]    --> src/ast.rs:339:8
[INFO] [stderr]     |
[INFO] [stderr] 339 | pub fn walk_lambda<'a, V: Visitor<'a>>(visitor: &mut V, lambda: &'a Lambda) {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_if_expression`
[INFO] [stderr]    --> src/ast.rs:349:8
[INFO] [stderr]     |
[INFO] [stderr] 349 | pub fn walk_if_expression<'a, V: Visitor<'a>>(visitor: &mut V, expression: &'a IfExpression) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_while_statement`
[INFO] [stderr]    --> src/ast.rs:356:8
[INFO] [stderr]     |
[INFO] [stderr] 356 | pub fn walk_while_statement<'a, V: Visitor<'a>>(visitor: &mut V, statement: &'a WhileStatement) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_struct_expression`
[INFO] [stderr]    --> src/ast.rs:361:8
[INFO] [stderr]     |
[INFO] [stderr] 361 | pub fn walk_struct_expression<'a, V: Visitor<'a>>(
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_struct_member`
[INFO] [stderr]    --> src/ast.rs:368:8
[INFO] [stderr]     |
[INFO] [stderr] 368 | pub fn walk_struct_member<'a, V: Visitor<'a>>(visitor: &mut V, struct_member: &'a StructMember) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `warning_message`
[INFO] [stderr]    --> src/parser.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn warning_message(&mut self, start: usize, end: usize, title: String, message: &str) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `contains`
[INFO] [stderr]   --> src/token.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn contains(&self, offset: usize) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "8726f81de4121f67ca55ce3a560e6496b5a274078fc4f877fe605e2e00d62a13"`
[INFO] running `"docker" "rm" "-f" "8726f81de4121f67ca55ce3a560e6496b5a274078fc4f877fe605e2e00d62a13"`
[INFO] [stdout] 8726f81de4121f67ca55ce3a560e6496b5a274078fc4f877fe605e2e00d62a13