[INFO] updating cached repository https://github.com/jgautier/monkey
[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] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ea61dd7559c7c6f649b38bbc8d6c09e5a69e809f
[INFO] checking jgautier/monkey against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgautier%2Fmonkey" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jgautier/monkey on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jgautier/monkey
[INFO] finished tweaking git repo https://github.com/jgautier/monkey
[INFO] tweaked toml for git repo https://github.com/jgautier/monkey written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/jgautier/monkey already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-1/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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 60c8c279f7e2822388433a59b9271ce99d443d65d95e674cd3f62e210133985c
[INFO] running `"docker" "start" "-a" "60c8c279f7e2822388433a59b9271ce99d443d65d95e674cd3f62e210133985c"`
[INFO] [stderr]     Checking monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `while` condition
[INFO] [stderr]    --> src/ast.rs:517:15
[INFO] [stderr]     |
[INFO] [stderr] 517 |         while (self.peek_token.token_type == lexer::TokenType::COMMA) {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lexer.rs:132:14
[INFO] [stderr]     |
[INFO] [stderr] 132 |         for (i, chr) in self.input[self.cur_index..].char_indices() {
[INFO] [stderr]     |              ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:22:25
[INFO] [stderr]    |
[INFO] [stderr] 22 |                     let mut program = parser.parse();
[INFO] [stderr]    |                         ----^^^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `while` condition
[INFO] [stderr]    --> src/ast.rs:517:15
[INFO] [stderr]     |
[INFO] [stderr] 517 |         while (self.peek_token.token_type == lexer::TokenType::COMMA) {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lexer.rs:132:14
[INFO] [stderr]     |
[INFO] [stderr] 132 |         for (i, chr) in self.input[self.cur_index..].char_indices() {
[INFO] [stderr]     |              ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `program`
[INFO] [stderr]    --> src/ast.rs:655:13
[INFO] [stderr]     |
[INFO] [stderr] 655 |         let program = Program {
[INFO] [stderr]     |             ^^^^^^^ help: consider prefixing with an underscore: `_program`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:22:25
[INFO] [stderr]    |
[INFO] [stderr] 22 |                     let mut program = parser.parse();
[INFO] [stderr]    |                         ----^^^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_parse_infix_bool_expression`
[INFO] [stderr]    --> src/ast.rs:795:6
[INFO] [stderr]     |
[INFO] [stderr] 795 |      fn test_parse_infix_bool_expression() {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.74s
[INFO] running `"docker" "inspect" "60c8c279f7e2822388433a59b9271ce99d443d65d95e674cd3f62e210133985c"`
[INFO] running `"docker" "rm" "-f" "60c8c279f7e2822388433a59b9271ce99d443d65d95e674cd3f62e210133985c"`
[INFO] [stdout] 60c8c279f7e2822388433a59b9271ce99d443d65d95e674cd3f62e210133985c