Dec 19 21:08:34.626 INFO checking aarthiKarthik/Rust-Basics against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 21:08:34.641 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/aarthiKarthik/Rust-Basics:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 21:08:34.865 INFO [stdout] 07837c4fd64ab453e77fc39848c5b58788ed40714a2c3791b17f945dbd600ddf
Dec 19 21:08:34.867 INFO running `"docker" "start" "-a" "07837c4fd64ab453e77fc39848c5b58788ed40714a2c3791b17f945dbd600ddf"`
Dec 19 21:08:35.352 INFO [stderr]     Checking hello_world v0.0.1 (/opt/crater/workdir)
Dec 19 21:08:35.417 INFO [stderr] warning: unknown lint: `unused_variable`
Dec 19 21:08:35.417 INFO [stderr]  --> src/main.rs:2:10
Dec 19 21:08:35.417 INFO [stderr]   |
Dec 19 21:08:35.417 INFO [stderr] 2 | #![allow(unused_variable)]
Dec 19 21:08:35.417 INFO [stderr]   |          ^^^^^^^^^^^^^^^
Dec 19 21:08:35.417 INFO [stderr]   |
Dec 19 21:08:35.417 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Dec 19 21:08:35.417 INFO [stderr] 
Dec 19 21:08:35.418 INFO [stderr] warning: unknown lint: `unused_variable`
Dec 19 21:08:35.418 INFO [stderr]  --> src/main.rs:2:10
Dec 19 21:08:35.418 INFO [stderr]   |
Dec 19 21:08:35.418 INFO [stderr] 2 | #![allow(unused_variable)]
Dec 19 21:08:35.418 INFO [stderr]   |          ^^^^^^^^^^^^^^^
Dec 19 21:08:35.418 INFO [stderr]   |
Dec 19 21:08:35.418 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Dec 19 21:08:35.418 INFO [stderr] 
Dec 19 21:08:35.600 INFO [stderr] warning: unused variable: `a`
Dec 19 21:08:35.600 INFO [stderr]   --> src/main.rs:88:6
Dec 19 21:08:35.600 INFO [stderr]    |
Dec 19 21:08:35.600 INFO [stderr] 88 |     let a = 123;
Dec 19 21:08:35.600 INFO [stderr]    |         ^ help: consider using `_a` instead
Dec 19 21:08:35.600 INFO [stderr]    |
Dec 19 21:08:35.600 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 21:08:35.600 INFO [stderr] 
Dec 19 21:08:35.602 INFO [stderr] warning: unused variable: `a`
Dec 19 21:08:35.602 INFO [stderr]   --> src/main.rs:88:6
Dec 19 21:08:35.603 INFO [stderr]    |
Dec 19 21:08:35.603 INFO [stderr] 88 |     let a = 123;
Dec 19 21:08:35.603 INFO [stderr]    |         ^ help: consider using `_a` instead
Dec 19 21:08:35.603 INFO [stderr]    |
Dec 19 21:08:35.603 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 21:08:35.603 INFO [stderr] 
Dec 19 21:08:35.636 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
Dec 19 21:08:35.984 INFO running `"docker" "inspect" "07837c4fd64ab453e77fc39848c5b58788ed40714a2c3791b17f945dbd600ddf"`
Dec 19 21:08:36.304 INFO running `"docker" "rm" "-f" "07837c4fd64ab453e77fc39848c5b58788ed40714a2c3791b17f945dbd600ddf"`
Dec 19 21:08:36.508 INFO [stdout] 07837c4fd64ab453e77fc39848c5b58788ed40714a2c3791b17f945dbd600ddf