Dec 13 17:50:21.947 INFO testing hamadakafu/rust_client against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 17:50:21.947 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 13 17:50:22.271 INFO [stdout] 31572dbae229a4f02b8df614f01b75b17b25cc3d8f2fd2ee654a550e6c16e3d9
Dec 13 17:50:22.271 INFO running `"docker" "start" "-a" "31572dbae229a4f02b8df614f01b75b17b25cc3d8f2fd2ee654a550e6c16e3d9"`
Dec 13 17:50:22.935 INFO [stderr] usermod: no changes
Dec 13 17:50:22.935 INFO [stderr]    Compiling rust_client v0.1.0 (/source)
Dec 13 17:50:23.211 INFO [stderr] warning: unused variable: `buf`
Dec 13 17:50:23.211 INFO [stderr]   --> src/main.rs:10:7
Dec 13 17:50:23.211 INFO [stderr]    |
Dec 13 17:50:23.211 INFO [stderr] 10 |   let buf = String::new();
Dec 13 17:50:23.211 INFO [stderr]    |       ^^^ help: consider using `_buf` instead
Dec 13 17:50:23.211 INFO [stderr]    |
Dec 13 17:50:23.211 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 17:50:23.255 INFO [stderr] 
Dec 13 17:50:23.515 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
Dec 13 17:50:23.515 INFO [stderr] su: No module specific data is present
Dec 13 17:50:23.907 INFO running `"docker" "inspect" "31572dbae229a4f02b8df614f01b75b17b25cc3d8f2fd2ee654a550e6c16e3d9"`
Dec 13 17:50:24.012 INFO running `"docker" "rm" "-f" "31572dbae229a4f02b8df614f01b75b17b25cc3d8f2fd2ee654a550e6c16e3d9"`
Dec 13 17:50:24.120 INFO [stdout] 31572dbae229a4f02b8df614f01b75b17b25cc3d8f2fd2ee654a550e6c16e3d9
Dec 13 17:50:24.121 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 13 17:50:24.427 INFO [stdout] 50154a37050242bc7057e6ae7284ac88fdb4b1b1d54b3f6d0a1cc7292848b03c
Dec 13 17:50:24.427 INFO running `"docker" "start" "-a" "50154a37050242bc7057e6ae7284ac88fdb4b1b1d54b3f6d0a1cc7292848b03c"`
Dec 13 17:50:25.034 INFO [stderr] usermod: no changes
Dec 13 17:50:25.035 INFO [stderr]    Compiling rust_client v0.1.0 (/source)
Dec 13 17:50:25.315 INFO [stderr] warning: unused variable: `buf`
Dec 13 17:50:25.315 INFO [stderr]   --> src/main.rs:10:7
Dec 13 17:50:25.315 INFO [stderr]    |
Dec 13 17:50:25.315 INFO [stderr] 10 |   let buf = String::new();
Dec 13 17:50:25.315 INFO [stderr]    |       ^^^ help: consider using `_buf` instead
Dec 13 17:50:25.315 INFO [stderr]    |
Dec 13 17:50:25.315 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 17:50:25.315 INFO [stderr] 
Dec 13 17:50:25.529 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
Dec 13 17:50:25.532 INFO [stderr] su: No module specific data is present
Dec 13 17:50:26.027 INFO running `"docker" "inspect" "50154a37050242bc7057e6ae7284ac88fdb4b1b1d54b3f6d0a1cc7292848b03c"`
Dec 13 17:50:26.231 INFO running `"docker" "rm" "-f" "50154a37050242bc7057e6ae7284ac88fdb4b1b1d54b3f6d0a1cc7292848b03c"`
Dec 13 17:50:26.361 INFO [stdout] 50154a37050242bc7057e6ae7284ac88fdb4b1b1d54b3f6d0a1cc7292848b03c
Dec 13 17:50:26.365 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 13 17:50:26.654 INFO [stdout] f5c47af486cfc795c2ad38307b165a40b44f2e175a71eca0095434e9cf0e4554
Dec 13 17:50:26.656 INFO running `"docker" "start" "-a" "f5c47af486cfc795c2ad38307b165a40b44f2e175a71eca0095434e9cf0e4554"`
Dec 13 17:50:28.587 INFO [stderr] usermod: no changes
Dec 13 17:50:28.627 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 13 17:50:28.627 INFO [stderr]      Running /target/debug/deps/rust_client-0873c8e7efbacdd3
Dec 13 17:50:28.631 INFO [stdout] 
Dec 13 17:50:28.631 INFO [stdout] running 0 tests
Dec 13 17:50:28.631 INFO [stdout] 
Dec 13 17:50:28.631 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 17:50:28.631 INFO [stdout] 
Dec 13 17:50:28.635 INFO [stderr] su: No module specific data is present
Dec 13 17:50:30.067 INFO running `"docker" "inspect" "f5c47af486cfc795c2ad38307b165a40b44f2e175a71eca0095434e9cf0e4554"`
Dec 13 17:50:30.271 INFO running `"docker" "rm" "-f" "f5c47af486cfc795c2ad38307b165a40b44f2e175a71eca0095434e9cf0e4554"`
Dec 13 17:50:30.555 INFO [stdout] f5c47af486cfc795c2ad38307b165a40b44f2e175a71eca0095434e9cf0e4554