Dec 18 04:40:06.380 INFO checking aarthiKarthik/Rust-Basics against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 04:40:06.380 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 04:40:06.564 INFO [stdout] bd90e084c1a458301ec1d1499bd0fd55e95881b5730460163b5514f4d57e37b7
Dec 18 04:40:06.566 INFO running `"docker" "start" "-a" "bd90e084c1a458301ec1d1499bd0fd55e95881b5730460163b5514f4d57e37b7"`
Dec 18 04:40:07.268 INFO [stderr]     Checking hello_world v0.0.1 (/opt/crater/workdir)
Dec 18 04:40:07.356 INFO [stderr] warning: unknown lint: `unused_variable`
Dec 18 04:40:07.356 INFO [stderr]  --> src/main.rs:2:10
Dec 18 04:40:07.356 INFO [stderr]   |
Dec 18 04:40:07.356 INFO [stderr] 2 | #![allow(unused_variable)]
Dec 18 04:40:07.356 INFO [stderr]   |          ^^^^^^^^^^^^^^^
Dec 18 04:40:07.356 INFO [stderr]   |
Dec 18 04:40:07.356 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Dec 18 04:40:07.356 INFO [stderr] 
Dec 18 04:40:07.392 INFO [stderr] warning: unknown lint: `unused_variable`
Dec 18 04:40:07.392 INFO [stderr]  --> src/main.rs:2:10
Dec 18 04:40:07.392 INFO [stderr]   |
Dec 18 04:40:07.392 INFO [stderr] 2 | #![allow(unused_variable)]
Dec 18 04:40:07.392 INFO [stderr]   |          ^^^^^^^^^^^^^^^
Dec 18 04:40:07.392 INFO [stderr]   |
Dec 18 04:40:07.392 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Dec 18 04:40:07.392 INFO [stderr] 
Dec 18 04:40:07.560 INFO [stderr] warning: unused variable: `a`
Dec 18 04:40:07.560 INFO [stderr]   --> src/main.rs:88:6
Dec 18 04:40:07.560 INFO [stderr]    |
Dec 18 04:40:07.560 INFO [stderr] 88 |     let a = 123;
Dec 18 04:40:07.560 INFO [stderr]    |         ^ help: consider using `_a` instead
Dec 18 04:40:07.560 INFO [stderr]    |
Dec 18 04:40:07.560 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 04:40:07.560 INFO [stderr] 
Dec 18 04:40:07.608 INFO [stderr] warning: unused variable: `a`
Dec 18 04:40:07.608 INFO [stderr]   --> src/main.rs:88:6
Dec 18 04:40:07.608 INFO [stderr]    |
Dec 18 04:40:07.608 INFO [stderr] 88 |     let a = 123;
Dec 18 04:40:07.608 INFO [stderr]    |         ^ help: consider using `_a` instead
Dec 18 04:40:07.608 INFO [stderr]    |
Dec 18 04:40:07.608 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 04:40:07.608 INFO [stderr] 
Dec 18 04:40:07.652 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
Dec 18 04:40:07.964 INFO running `"docker" "inspect" "bd90e084c1a458301ec1d1499bd0fd55e95881b5730460163b5514f4d57e37b7"`
Dec 18 04:40:08.100 INFO running `"docker" "rm" "-f" "bd90e084c1a458301ec1d1499bd0fd55e95881b5730460163b5514f4d57e37b7"`
Dec 18 04:40:08.244 INFO [stdout] bd90e084c1a458301ec1d1499bd0fd55e95881b5730460163b5514f4d57e37b7