[INFO] cloning repository https://github.com/paxromana96/lisp_compiler_rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paxromana96/lisp_compiler_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaxromana96%2Flisp_compiler_rust"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaxromana96%2Flisp_compiler_rust'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 90fbbf2891f5cbb7e805c93ecb6f9dc1d7dad987
[INFO] checking paxromana96/lisp_compiler_rust against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaxromana96%2Flisp_compiler_rust" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paxromana96/lisp_compiler_rust 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/paxromana96/lisp_compiler_rust
[INFO] finished tweaking git repo https://github.com/paxromana96/lisp_compiler_rust
[INFO] tweaked toml for git repo https://github.com/paxromana96/lisp_compiler_rust written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/paxromana96/lisp_compiler_rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] f11ae8ce6efd0e61e13ae411201f5f1120ba36109ed37df14b0bfc99f5f2b04e
[INFO] running `"docker" "start" "-a" "f11ae8ce6efd0e61e13ae411201f5f1120ba36109ed37df14b0bfc99f5f2b04e"`
[INFO] [stderr]     Checking lisp_compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `crate::lexer::traits::*`
[INFO] [stderr]  --> src/ast/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::lexer::traits::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/errors.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Debug`
[INFO] [stderr]  --> src/errors.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fmt::Debug;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Lexable`
[INFO] [stderr]  --> src/parser/mod.rs:2:20
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::lexer::{Lexable, Lexer};
[INFO] [stderr]   |                    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::lexer::Lexable`
[INFO] [stderr]  --> src/parser/tree.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::lexer::Lexable;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/errors.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Debug`
[INFO] [stderr]  --> src/errors.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fmt::Debug;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::parser::traits`
[INFO] [stderr]  --> src/ast/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::parser::traits::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::traits`
[INFO] [stderr]   --> src/parser/tree.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use super::traits::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cell`
[INFO] [stderr]   --> src/ast/mod.rs:76:29
[INFO] [stderr]    |
[INFO] [stderr] 76 |                         let cell = &cells[&cons_idx];
[INFO] [stderr]    |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_cell`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cell`
[INFO] [stderr]   --> src/ast/mod.rs:95:25
[INFO] [stderr]    |
[INFO] [stderr] 95 |                     let cell = &cells[&cons_idx];
[INFO] [stderr]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_cell`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Nil`
[INFO] [stderr]   --> src/ast/mod.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     Nil,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `preorder_traversal`
[INFO] [stderr]    --> src/ast/mod.rs:166:5
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn preorder_traversal<'a>(&'a self) -> PreOrderAstTraversal<'a> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fmt_errors`
[INFO] [stderr]    --> src/ast/mod.rs:536:4
[INFO] [stderr]     |
[INFO] [stderr] 536 | fn fmt_errors<E: CompilerError>(errors: Vec<E>) -> String {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `unwrap`
[INFO] [stderr]    --> src/ast/mod.rs:543:4
[INFO] [stderr]     |
[INFO] [stderr] 543 | fn unwrap<T, E: CompilerError>(val: Result<T, Vec<E>>) -> T {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `i32`
[INFO] [stderr]   --> src/lexer/mod.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     fn i32(val: i32, loc: Range<CharLocation>) -> Token {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `assert_lexes_to`
[INFO] [stderr]    --> src/lexer/mod.rs:215:8
[INFO] [stderr]     |
[INFO] [stderr] 215 |     fn assert_lexes_to(text: &str, expected_tokens: Vec<Result<Token, Error>>) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cell`
[INFO] [stderr]   --> src/ast/mod.rs:76:29
[INFO] [stderr]    |
[INFO] [stderr] 76 |                         let cell = &cells[&cons_idx];
[INFO] [stderr]    |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_cell`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cell`
[INFO] [stderr]   --> src/ast/mod.rs:95:25
[INFO] [stderr]    |
[INFO] [stderr] 95 |                     let cell = &cells[&cons_idx];
[INFO] [stderr]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_cell`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Nil`
[INFO] [stderr]   --> src/ast/mod.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     Nil,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `"docker" "inspect" "f11ae8ce6efd0e61e13ae411201f5f1120ba36109ed37df14b0bfc99f5f2b04e"`
[INFO] running `"docker" "rm" "-f" "f11ae8ce6efd0e61e13ae411201f5f1120ba36109ed37df14b0bfc99f5f2b04e"`
[INFO] [stdout] f11ae8ce6efd0e61e13ae411201f5f1120ba36109ed37df14b0bfc99f5f2b04e