Dec 12 19:31:37.346 INFO testing zhenhuanlee/simple_server against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 12 19:31:37.346 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 12 19:31:37.547 INFO [stdout] 18544589b49a56cf6ffd668f6438769f8db6588931256b552a2cc5ea4e6770d2
Dec 12 19:31:37.551 INFO running `"docker" "start" "-a" "18544589b49a56cf6ffd668f6438769f8db6588931256b552a2cc5ea4e6770d2"`
Dec 12 19:31:37.946 INFO [stderr] usermod: no changes
Dec 12 19:31:37.971 INFO [stderr]    Compiling simple_server v0.1.0 (/source)
Dec 12 19:31:38.086 INFO [stderr] warning: field is never used: `workers`
Dec 12 19:31:38.086 INFO [stderr]  --> src/hello/lib.rs:8:3
Dec 12 19:31:38.086 INFO [stderr]   |
Dec 12 19:31:38.086 INFO [stderr] 8 |   workers: Vec<Worker>,
Dec 12 19:31:38.087 INFO [stderr]   |   ^^^^^^^^^^^^^^^^^^^^
Dec 12 19:31:38.087 INFO [stderr]   |
Dec 12 19:31:38.087 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 19:31:38.087 INFO [stderr] 
Dec 12 19:31:38.087 INFO [stderr] warning: field is never used: `id`
Dec 12 19:31:38.088 INFO [stderr]   --> src/hello/lib.rs:15:3
Dec 12 19:31:38.088 INFO [stderr]    |
Dec 12 19:31:38.088 INFO [stderr] 15 |   id: usize,
Dec 12 19:31:38.088 INFO [stderr]    |   ^^^^^^^^^
Dec 12 19:31:38.088 INFO [stderr] 
Dec 12 19:31:38.089 INFO [stderr] warning: field is never used: `thread`
Dec 12 19:31:38.089 INFO [stderr]   --> src/hello/lib.rs:16:3
Dec 12 19:31:38.089 INFO [stderr]    |
Dec 12 19:31:38.089 INFO [stderr] 16 |   thread: thread::JoinHandle<()>,
Dec 12 19:31:38.089 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:31:38.090 INFO [stderr] 
Dec 12 19:31:39.088 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
Dec 12 19:31:39.090 INFO [stderr] su: No module specific data is present
Dec 12 19:31:39.365 INFO running `"docker" "inspect" "18544589b49a56cf6ffd668f6438769f8db6588931256b552a2cc5ea4e6770d2"`
Dec 12 19:31:39.673 INFO running `"docker" "rm" "-f" "18544589b49a56cf6ffd668f6438769f8db6588931256b552a2cc5ea4e6770d2"`
Dec 12 19:31:39.982 INFO [stdout] 18544589b49a56cf6ffd668f6438769f8db6588931256b552a2cc5ea4e6770d2
Dec 12 19:31:39.989 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 12 19:31:40.446 INFO [stdout] 37634fd77186acb05f03ed5424d9000096e4833104de311bfb77511b0b034c51
Dec 12 19:31:40.464 INFO running `"docker" "start" "-a" "37634fd77186acb05f03ed5424d9000096e4833104de311bfb77511b0b034c51"`
Dec 12 19:31:41.478 INFO [stderr] usermod: no changes
Dec 12 19:31:41.508 INFO [stderr]    Compiling simple_server v0.1.0 (/source)
Dec 12 19:31:41.626 INFO [stderr] warning: field is never used: `workers`
Dec 12 19:31:41.626 INFO [stderr]  --> src/hello/lib.rs:8:3
Dec 12 19:31:41.627 INFO [stderr]   |
Dec 12 19:31:41.627 INFO [stderr] 8 |   workers: Vec<Worker>,
Dec 12 19:31:41.627 INFO [stderr]   |   ^^^^^^^^^^^^^^^^^^^^
Dec 12 19:31:41.627 INFO [stderr]   |
Dec 12 19:31:41.627 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 19:31:41.627 INFO [stderr] 
Dec 12 19:31:41.627 INFO [stderr] warning: field is never used: `id`
Dec 12 19:31:41.627 INFO [stderr]   --> src/hello/lib.rs:15:3
Dec 12 19:31:41.627 INFO [stderr]    |
Dec 12 19:31:41.627 INFO [stderr] 15 |   id: usize,
Dec 12 19:31:41.627 INFO [stderr]    |   ^^^^^^^^^
Dec 12 19:31:41.627 INFO [stderr] 
Dec 12 19:31:41.627 INFO [stderr] warning: field is never used: `thread`
Dec 12 19:31:41.627 INFO [stderr]   --> src/hello/lib.rs:16:3
Dec 12 19:31:41.627 INFO [stderr]    |
Dec 12 19:31:41.627 INFO [stderr] 16 |   thread: thread::JoinHandle<()>,
Dec 12 19:31:41.627 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:31:41.627 INFO [stderr] 
Dec 12 19:31:41.870 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
Dec 12 19:31:41.873 INFO [stderr] su: No module specific data is present
Dec 12 19:31:42.144 INFO running `"docker" "inspect" "37634fd77186acb05f03ed5424d9000096e4833104de311bfb77511b0b034c51"`
Dec 12 19:31:42.261 INFO running `"docker" "rm" "-f" "37634fd77186acb05f03ed5424d9000096e4833104de311bfb77511b0b034c51"`
Dec 12 19:31:42.389 INFO [stdout] 37634fd77186acb05f03ed5424d9000096e4833104de311bfb77511b0b034c51
Dec 12 19:31:42.391 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 12 19:31:42.514 INFO [stdout] e98a8bec44b283b2606e431388b19f7023164a00bcd564a2348eace5eb276d36
Dec 12 19:31:42.516 INFO running `"docker" "start" "-a" "e98a8bec44b283b2606e431388b19f7023164a00bcd564a2348eace5eb276d36"`
Dec 12 19:31:42.882 INFO [stderr] usermod: no changes
Dec 12 19:31:42.906 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 12 19:31:42.906 INFO [stderr]      Running /target/debug/deps/hello-716ba6b9d817a01b
Dec 12 19:31:42.907 INFO [stdout] 
Dec 12 19:31:42.907 INFO [stdout] running 0 tests
Dec 12 19:31:42.907 INFO [stdout] 
Dec 12 19:31:42.907 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 12 19:31:42.907 INFO [stdout] 
Dec 12 19:31:42.908 INFO [stderr]      Running /target/debug/deps/simple_server-3debbba3688bad58
Dec 12 19:31:42.909 INFO [stdout] 
Dec 12 19:31:42.909 INFO [stdout] running 0 tests
Dec 12 19:31:42.909 INFO [stdout] 
Dec 12 19:31:42.909 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 12 19:31:42.909 INFO [stdout] 
Dec 12 19:31:42.909 INFO [stderr]    Doc-tests hello
Dec 12 19:31:42.984 INFO [stdout] 
Dec 12 19:31:42.984 INFO [stdout] running 0 tests
Dec 12 19:31:42.984 INFO [stdout] 
Dec 12 19:31:42.984 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 12 19:31:42.984 INFO [stdout] 
Dec 12 19:31:42.991 INFO [stderr] su: No module specific data is present
Dec 12 19:31:43.208 INFO running `"docker" "inspect" "e98a8bec44b283b2606e431388b19f7023164a00bcd564a2348eace5eb276d36"`
Dec 12 19:31:43.439 INFO running `"docker" "rm" "-f" "e98a8bec44b283b2606e431388b19f7023164a00bcd564a2348eace5eb276d36"`
Dec 12 19:31:43.682 INFO [stdout] e98a8bec44b283b2606e431388b19f7023164a00bcd564a2348eace5eb276d36