Dec 05 06:41:48.376 INFO checking simbol-server-1.1.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 06:41:48.376 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-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 05 06:41:48.823 INFO [stdout] d55fdb36be0abef5bb5768f146ea3b582b0f56a06ca402e55a536990389f3cd7
Dec 05 06:41:48.831 INFO running `"docker" "start" "-a" "d55fdb36be0abef5bb5768f146ea3b582b0f56a06ca402e55a536990389f3cd7"`
Dec 05 06:41:50.264 INFO [stderr] usermod: no changes
Dec 05 06:41:50.518 INFO [stderr]     Checking iron v0.6.0
Dec 05 06:41:53.125 INFO [stderr]     Checking mount v0.4.0
Dec 05 06:41:53.126 INFO [stderr]     Checking router v0.6.0
Dec 05 06:41:53.128 INFO [stderr]     Checking iron-cors v0.8.0
Dec 05 06:41:56.935 INFO [stderr]     Checking staticfile v0.5.0
Dec 05 06:41:59.376 INFO [stderr]     Checking simbol-server v1.1.0 (/source)
Dec 05 06:42:02.563 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 06:42:02.563 INFO [stderr]   --> src/multivp.rs:82:37
Dec 05 06:42:02.563 INFO [stderr]    |
Dec 05 06:42:02.563 INFO [stderr] 82 |                                     connection.send(msg);
Dec 05 06:42:02.563 INFO [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:42:02.563 INFO [stderr]    |
Dec 05 06:42:02.563 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 06:42:02.563 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 06:42:02.563 INFO [stderr] 
Dec 05 06:42:02.563 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 06:42:02.563 INFO [stderr]    --> src/multivp.rs:112:21
Dec 05 06:42:02.563 INFO [stderr]     |
Dec 05 06:42:02.563 INFO [stderr] 112 |                     connection.send(msg);
Dec 05 06:42:02.563 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:42:02.563 INFO [stderr]     |
Dec 05 06:42:02.563 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 06:42:02.563 INFO [stderr] 
Dec 05 06:42:02.633 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 06:42:02.633 INFO [stderr]   --> src/multivp.rs:82:37
Dec 05 06:42:02.634 INFO [stderr]    |
Dec 05 06:42:02.634 INFO [stderr] 82 |                                     connection.send(msg);
Dec 05 06:42:02.634 INFO [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:42:02.634 INFO [stderr]    |
Dec 05 06:42:02.634 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 06:42:02.634 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 06:42:02.634 INFO [stderr] 
Dec 05 06:42:02.634 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 06:42:02.634 INFO [stderr]    --> src/multivp.rs:112:21
Dec 05 06:42:02.634 INFO [stderr]     |
Dec 05 06:42:02.634 INFO [stderr] 112 |                     connection.send(msg);
Dec 05 06:42:02.634 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:42:02.634 INFO [stderr]     |
Dec 05 06:42:02.634 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 06:42:02.634 INFO [stderr] 
Dec 05 06:42:02.652 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.36s
Dec 05 06:42:02.663 INFO [stderr] su: No module specific data is present
Dec 05 06:42:03.042 INFO running `"docker" "inspect" "d55fdb36be0abef5bb5768f146ea3b582b0f56a06ca402e55a536990389f3cd7"`
Dec 05 06:42:03.213 INFO running `"docker" "rm" "-f" "d55fdb36be0abef5bb5768f146ea3b582b0f56a06ca402e55a536990389f3cd7"`
Dec 05 06:42:03.385 INFO [stdout] d55fdb36be0abef5bb5768f146ea3b582b0f56a06ca402e55a536990389f3cd7