[INFO] cloning repository https://github.com/schulke-214/toy-compiler
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/schulke-214/toy-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fschulke-214%2Ftoy-compiler"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fschulke-214%2Ftoy-compiler'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 77f2d1cdc36e8d17d6c1162f4dd8e3fc731a4106
[INFO] checking schulke-214/toy-compiler against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fschulke-214%2Ftoy-compiler" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/schulke-214/toy-compiler on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/schulke-214/toy-compiler
[INFO] finished tweaking git repo https://github.com/schulke-214/toy-compiler
[INFO] tweaked toml for git repo https://github.com/schulke-214/toy-compiler written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/schulke-214/toy-compiler already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7dbd4717c2ec85650049f55294a25e80ff007a06044a334a2c53815ce0bf5c01
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "7dbd4717c2ec85650049f55294a25e80ff007a06044a334a2c53815ce0bf5c01"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking backtrace-sys v0.1.31
[INFO] [stderr]     Checking backtrace v0.3.38
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking mangoc v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Keyword`
[INFO] [stderr]  --> src/parser.rs:6:32
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::types::{Expression, Keyword, Operator, Value};
[INFO] [stderr]   |                                ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Operator`, `Value`
[INFO] [stderr]   --> src/types.rs:88:26
[INFO] [stderr]    |
[INFO] [stderr] 88 |     use super::{Expression, Operator, Value};
[INFO] [stderr]    |                             ^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Keyword`
[INFO] [stderr]  --> src/parser.rs:6:32
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::types::{Expression, Keyword, Operator, Value};
[INFO] [stderr]   |                                ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Operator`, `Value`
[INFO] [stderr]   --> src/types.rs:88:26
[INFO] [stderr]    |
[INFO] [stderr] 88 |     use super::{Expression, Operator, Value};
[INFO] [stderr]    |                             ^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tkn`
[INFO] [stderr]    --> src/parser.rs:236:7
[INFO] [stderr]     |
[INFO] [stderr] 236 |         let tkn = match self.iter.peek() {
[INFO] [stderr]     |             ^^^ help: consider prefixing with an underscore: `_tkn`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tkn`
[INFO] [stderr]    --> src/parser.rs:236:7
[INFO] [stderr]     |
[INFO] [stderr] 236 |         let tkn = match self.iter.peek() {
[INFO] [stderr]     |             ^^^ help: consider prefixing with an underscore: `_tkn`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `expect`
[INFO] [stderr]   --> src/parser.rs:34:2
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn expect(&mut self, tkn: Token) -> Result<()> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `expect_peek`
[INFO] [stderr]   --> src/parser.rs:42:2
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn expect_peek(&mut self, tkn: Token) -> Result<()> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `expect`
[INFO] [stderr]   --> src/parser.rs:34:2
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn expect(&mut self, tkn: Token) -> Result<()> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `expect_peek`
[INFO] [stderr]   --> src/parser.rs:42:2
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn expect_peek(&mut self, tkn: Token) -> Result<()> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.48s
[INFO] running `"docker" "inspect" "7dbd4717c2ec85650049f55294a25e80ff007a06044a334a2c53815ce0bf5c01"`
[INFO] running `"docker" "rm" "-f" "7dbd4717c2ec85650049f55294a25e80ff007a06044a334a2c53815ce0bf5c01"`
[INFO] [stdout] 7dbd4717c2ec85650049f55294a25e80ff007a06044a334a2c53815ce0bf5c01