Dec 14 04:14:19.969 INFO testing aarthiKarthik/Rust-Basics against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 14 04:14:19.969 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 04:14:20.219 INFO [stdout] c06b7fe75fe73c64efe08e60e88c80887ce97645066b81a5ea22a003809ca1fa
Dec 14 04:14:20.222 INFO running `"docker" "start" "-a" "c06b7fe75fe73c64efe08e60e88c80887ce97645066b81a5ea22a003809ca1fa"`
Dec 14 04:14:20.655 INFO [stderr] usermod: no changes
Dec 14 04:14:20.687 INFO [stderr]    Compiling hello_world v0.0.1 (/source)
Dec 14 04:14:20.747 INFO [stderr] warning: unknown lint: `unused_variable`
Dec 14 04:14:20.747 INFO [stderr]  --> src/main.rs:2:10
Dec 14 04:14:20.747 INFO [stderr]   |
Dec 14 04:14:20.747 INFO [stderr] 2 | #![allow(unused_variable)]
Dec 14 04:14:20.747 INFO [stderr]   |          ^^^^^^^^^^^^^^^
Dec 14 04:14:20.747 INFO [stderr]   |
Dec 14 04:14:20.747 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Dec 14 04:14:20.747 INFO [stderr] 
Dec 14 04:14:21.147 INFO [stderr] warning: unused variable: `a`
Dec 14 04:14:21.147 INFO [stderr]   --> src/main.rs:88:6
Dec 14 04:14:21.147 INFO [stderr]    |
Dec 14 04:14:21.147 INFO [stderr] 88 |     let a = 123;
Dec 14 04:14:21.147 INFO [stderr]    |         ^ help: consider using `_a` instead
Dec 14 04:14:21.147 INFO [stderr]    |
Dec 14 04:14:21.147 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 14 04:14:21.147 INFO [stderr] 
Dec 14 04:14:21.423 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
Dec 14 04:14:21.423 INFO [stderr] su: No module specific data is present
Dec 14 04:14:22.049 INFO running `"docker" "inspect" "c06b7fe75fe73c64efe08e60e88c80887ce97645066b81a5ea22a003809ca1fa"`
Dec 14 04:14:22.329 INFO running `"docker" "rm" "-f" "c06b7fe75fe73c64efe08e60e88c80887ce97645066b81a5ea22a003809ca1fa"`
Dec 14 04:14:22.555 INFO [stdout] c06b7fe75fe73c64efe08e60e88c80887ce97645066b81a5ea22a003809ca1fa
Dec 14 04:14:22.555 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 04:14:23.153 INFO [stdout] d55a884ffbd8b823edc1c2986edf940ac1e96003a6c3ccf719b86158edeb468d
Dec 14 04:14:23.156 INFO running `"docker" "start" "-a" "d55a884ffbd8b823edc1c2986edf940ac1e96003a6c3ccf719b86158edeb468d"`
Dec 14 04:14:23.947 INFO [stderr] usermod: no changes
Dec 14 04:14:23.993 INFO [stderr]    Compiling hello_world v0.0.1 (/source)
Dec 14 04:14:24.091 INFO [stderr] warning: unknown lint: `unused_variable`
Dec 14 04:14:24.091 INFO [stderr]  --> src/main.rs:2:10
Dec 14 04:14:24.091 INFO [stderr]   |
Dec 14 04:14:24.091 INFO [stderr] 2 | #![allow(unused_variable)]
Dec 14 04:14:24.091 INFO [stderr]   |          ^^^^^^^^^^^^^^^
Dec 14 04:14:24.091 INFO [stderr]   |
Dec 14 04:14:24.091 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Dec 14 04:14:24.091 INFO [stderr] 
Dec 14 04:14:24.597 INFO [stderr] warning: unused variable: `a`
Dec 14 04:14:24.597 INFO [stderr]   --> src/main.rs:88:6
Dec 14 04:14:24.597 INFO [stderr]    |
Dec 14 04:14:24.597 INFO [stderr] 88 |     let a = 123;
Dec 14 04:14:24.597 INFO [stderr]    |         ^ help: consider using `_a` instead
Dec 14 04:14:24.597 INFO [stderr]    |
Dec 14 04:14:24.597 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 14 04:14:24.597 INFO [stderr] 
Dec 14 04:14:25.019 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
Dec 14 04:14:25.024 INFO [stderr] su: No module specific data is present
Dec 14 04:14:25.883 INFO running `"docker" "inspect" "d55a884ffbd8b823edc1c2986edf940ac1e96003a6c3ccf719b86158edeb468d"`
Dec 14 04:14:26.093 INFO running `"docker" "rm" "-f" "d55a884ffbd8b823edc1c2986edf940ac1e96003a6c3ccf719b86158edeb468d"`
Dec 14 04:14:26.323 INFO [stdout] d55a884ffbd8b823edc1c2986edf940ac1e96003a6c3ccf719b86158edeb468d
Dec 14 04:14:26.331 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 04:14:26.671 INFO [stdout] 7e56640f8cee684aa2b51cf0cf5581fd9b97c1a718e959f551feac8257fa9c6d
Dec 14 04:14:26.679 INFO running `"docker" "start" "-a" "7e56640f8cee684aa2b51cf0cf5581fd9b97c1a718e959f551feac8257fa9c6d"`
Dec 14 04:14:27.910 INFO [stderr] usermod: no changes
Dec 14 04:14:27.951 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 14 04:14:27.951 INFO [stderr]      Running /target/debug/deps/hello_world-daabb2b0baf83d6a
Dec 14 04:14:27.953 INFO [stdout] 
Dec 14 04:14:27.953 INFO [stdout] running 0 tests
Dec 14 04:14:27.954 INFO [stdout] 
Dec 14 04:14:27.954 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 04:14:27.954 INFO [stdout] 
Dec 14 04:14:27.955 INFO [stderr] su: No module specific data is present
Dec 14 04:14:28.742 INFO running `"docker" "inspect" "7e56640f8cee684aa2b51cf0cf5581fd9b97c1a718e959f551feac8257fa9c6d"`
Dec 14 04:14:28.958 INFO running `"docker" "rm" "-f" "7e56640f8cee684aa2b51cf0cf5581fd9b97c1a718e959f551feac8257fa9c6d"`
Dec 14 04:14:29.183 INFO [stdout] 7e56640f8cee684aa2b51cf0cf5581fd9b97c1a718e959f551feac8257fa9c6d