Dec 05 00:28:56.134 INFO checking Qwertee/Kopier against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 00:28:56.134 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 00:28:56.692 INFO [stdout] fd0ed361e2bf881b172e18a5f4b6dd366e65903424cb5167d282341ff70894cc
Dec 05 00:28:56.694 INFO running `"docker" "start" "-a" "fd0ed361e2bf881b172e18a5f4b6dd366e65903424cb5167d282341ff70894cc"`
Dec 05 00:28:57.496 INFO [stderr] usermod: no changes
Dec 05 00:28:57.523 INFO [stderr]     Checking kopier v0.1.0 (/source)
Dec 05 00:28:57.959 INFO [stderr] warning: variable does not need to be mutable
Dec 05 00:28:57.959 INFO [stderr]   --> src/main.rs:22:9
Dec 05 00:28:57.959 INFO [stderr]    |
Dec 05 00:28:57.959 INFO [stderr] 22 |     let mut dest_file = try!(File::create(dest_string));
Dec 05 00:28:57.959 INFO [stderr]    |         ----^^^^^^^^^
Dec 05 00:28:57.959 INFO [stderr]    |         |
Dec 05 00:28:57.959 INFO [stderr]    |         help: remove this `mut`
Dec 05 00:28:57.959 INFO [stderr]    |
Dec 05 00:28:57.959 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 00:28:57.959 INFO [stderr] 
Dec 05 00:28:57.973 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:28:57.973 INFO [stderr]   --> src/main.rs:32:5
Dec 05 00:28:57.975 INFO [stderr]    |
Dec 05 00:28:57.975 INFO [stderr] 32 |     f.write_all(data.as_bytes());
Dec 05 00:28:57.975 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:28:57.975 INFO [stderr]    |
Dec 05 00:28:57.975 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 00:28:57.975 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:28:57.975 INFO [stderr] 
Dec 05 00:28:57.982 INFO [stderr] warning: variable does not need to be mutable
Dec 05 00:28:57.982 INFO [stderr]   --> src/main.rs:22:9
Dec 05 00:28:57.982 INFO [stderr]    |
Dec 05 00:28:57.982 INFO [stderr] 22 |     let mut dest_file = try!(File::create(dest_string));
Dec 05 00:28:57.982 INFO [stderr]    |         ----^^^^^^^^^
Dec 05 00:28:57.982 INFO [stderr]    |         |
Dec 05 00:28:57.982 INFO [stderr]    |         help: remove this `mut`
Dec 05 00:28:57.982 INFO [stderr]    |
Dec 05 00:28:57.982 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 00:28:57.982 INFO [stderr] 
Dec 05 00:28:57.991 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:28:57.991 INFO [stderr]   --> src/main.rs:32:5
Dec 05 00:28:57.991 INFO [stderr]    |
Dec 05 00:28:57.991 INFO [stderr] 32 |     f.write_all(data.as_bytes());
Dec 05 00:28:57.991 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:28:57.991 INFO [stderr]    |
Dec 05 00:28:57.991 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 00:28:57.991 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:28:57.991 INFO [stderr] 
Dec 05 00:28:58.020 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
Dec 05 00:28:58.027 INFO [stderr] su: No module specific data is present
Dec 05 00:28:58.689 INFO running `"docker" "inspect" "fd0ed361e2bf881b172e18a5f4b6dd366e65903424cb5167d282341ff70894cc"`
Dec 05 00:28:58.916 INFO running `"docker" "rm" "-f" "fd0ed361e2bf881b172e18a5f4b6dd366e65903424cb5167d282341ff70894cc"`
Dec 05 00:28:59.206 INFO [stdout] fd0ed361e2bf881b172e18a5f4b6dd366e65903424cb5167d282341ff70894cc