Dec 05 10:28:03.764 INFO checking mg-settings-macros-0.4.2 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 10:28:03.764 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 10:28:04.119 INFO [stdout] c967bcc857d7e1e05250ce93841fa760330e8158de6767ac3d6b6b3efb544743
Dec 05 10:28:04.122 INFO running `"docker" "start" "-a" "c967bcc857d7e1e05250ce93841fa760330e8158de6767ac3d6b6b3efb544743"`
Dec 05 10:28:05.259 INFO [stderr] usermod: no changes
Dec 05 10:28:05.439 INFO [stderr]     Checking syn v0.13.11
Dec 05 10:28:05.439 INFO [stderr]    Compiling env_logger v0.5.13
Dec 05 10:28:08.307 INFO [stderr]    Compiling mg-settings-macros v0.4.2
Dec 05 10:28:08.307 INFO [stderr]    Compiling mg-settings-macros v0.4.2 (/source)
Dec 05 10:28:11.339 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 10:28:11.339 INFO [stderr]   --> src/lib.rs:54:5
Dec 05 10:28:11.339 INFO [stderr]    |
Dec 05 10:28:11.339 INFO [stderr] 54 |     builder.try_init();
Dec 05 10:28:11.339 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 05 10:28:11.339 INFO [stderr]    |
Dec 05 10:28:11.339 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 10:28:11.339 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 10:28:11.339 INFO [stderr] 
Dec 05 10:28:16.767 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 10:28:16.767 INFO [stderr]   --> src/lib.rs:54:5
Dec 05 10:28:16.768 INFO [stderr]    |
Dec 05 10:28:16.768 INFO [stderr] 54 |     builder.try_init();
Dec 05 10:28:16.768 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 05 10:28:16.769 INFO [stderr]    |
Dec 05 10:28:16.769 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 10:28:16.769 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 10:28:16.770 INFO [stderr] 
Dec 05 10:28:18.203 INFO [stderr]     Checking mg-settings v0.4.3
Dec 05 10:28:21.243 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 10:28:21.243 INFO [stderr]   --> src/lib.rs:54:5
Dec 05 10:28:21.243 INFO [stderr]    |
Dec 05 10:28:21.243 INFO [stderr] 54 |     builder.try_init();
Dec 05 10:28:21.243 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 05 10:28:21.243 INFO [stderr]    |
Dec 05 10:28:21.243 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 10:28:21.243 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 10:28:21.243 INFO [stderr] 
Dec 05 10:28:21.269 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.96s
Dec 05 10:28:21.275 INFO [stderr] su: No module specific data is present
Dec 05 10:28:21.551 INFO running `"docker" "inspect" "c967bcc857d7e1e05250ce93841fa760330e8158de6767ac3d6b6b3efb544743"`
Dec 05 10:28:21.633 INFO running `"docker" "rm" "-f" "c967bcc857d7e1e05250ce93841fa760330e8158de6767ac3d6b6b3efb544743"`
Dec 05 10:28:21.714 INFO [stdout] c967bcc857d7e1e05250ce93841fa760330e8158de6767ac3d6b6b3efb544743