Dec 04 08:51:07.536 INFO checking tercen/rustson against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 08:51:07.536 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 04 08:51:08.044 INFO [stdout] 9b7012c0cb463539fcc616b11a959d097448561a049b3fe7172a026bb6934db0
Dec 04 08:51:08.046 INFO running `"docker" "start" "-a" "9b7012c0cb463539fcc616b11a959d097448561a049b3fe7172a026bb6934db0"`
Dec 04 08:51:09.970 INFO [stderr] usermod: no changes
Dec 04 08:51:10.139 INFO [stderr]     Checking rustson v0.1.0 (/source)
Dec 04 08:51:10.581 INFO [stderr] warning: unused import: `std::fs::File`
Dec 04 08:51:10.581 INFO [stderr]    --> src/lib.rs:456:9
Dec 04 08:51:10.581 INFO [stderr]     |
Dec 04 08:51:10.581 INFO [stderr] 456 |     use std::fs::File;
Dec 04 08:51:10.581 INFO [stderr]     |         ^^^^^^^^^^^^^
Dec 04 08:51:10.582 INFO [stderr]     |
Dec 04 08:51:10.582 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 04 08:51:10.582 INFO [stderr] 
Dec 04 08:51:10.582 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 04 08:51:10.582 INFO [stderr]    --> src/lib.rs:457:9
Dec 04 08:51:10.582 INFO [stderr]     |
Dec 04 08:51:10.582 INFO [stderr] 457 |     use std::io::prelude::*;
Dec 04 08:51:10.582 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^
Dec 04 08:51:10.582 INFO [stderr] 
Dec 04 08:51:10.887 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 08:51:10.887 INFO [stderr]    --> src/lib.rs:133:17
Dec 04 08:51:10.887 INFO [stderr]     |
Dec 04 08:51:10.887 INFO [stderr] 133 |                 add_object(v, buf);
Dec 04 08:51:10.887 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^
Dec 04 08:51:10.888 INFO [stderr]     |
Dec 04 08:51:10.888 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 08:51:10.888 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 08:51:10.888 INFO [stderr] 
Dec 04 08:51:10.951 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 08:51:10.951 INFO [stderr]    --> src/lib.rs:133:17
Dec 04 08:51:10.951 INFO [stderr]     |
Dec 04 08:51:10.951 INFO [stderr] 133 |                 add_object(v, buf);
Dec 04 08:51:10.951 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^
Dec 04 08:51:10.951 INFO [stderr]     |
Dec 04 08:51:10.951 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 08:51:10.951 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 08:51:10.951 INFO [stderr] 
Dec 04 08:51:10.983 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
Dec 04 08:51:10.985 INFO [stderr] su: No module specific data is present
Dec 04 08:51:11.903 INFO running `"docker" "inspect" "9b7012c0cb463539fcc616b11a959d097448561a049b3fe7172a026bb6934db0"`
Dec 04 08:51:12.154 INFO running `"docker" "rm" "-f" "9b7012c0cb463539fcc616b11a959d097448561a049b3fe7172a026bb6934db0"`
Dec 04 08:51:12.473 INFO [stdout] 9b7012c0cb463539fcc616b11a959d097448561a049b3fe7172a026bb6934db0