Dec 04 21:38:05.910 INFO checking bon-chi/rust_who against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 21:38:05.910 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 21:38:06.419 INFO [stdout] 4d6e164fab545e2e2ca705cf6d5e24c0329a0d1574f84a5cbe9847e51ac2dcff
Dec 04 21:38:06.422 INFO running `"docker" "start" "-a" "4d6e164fab545e2e2ca705cf6d5e24c0329a0d1574f84a5cbe9847e51ac2dcff"`
Dec 04 21:38:08.338 INFO [stderr] usermod: no changes
Dec 04 21:38:08.403 INFO [stderr]     Checking rust_who v0.1.0 (/source)
Dec 04 21:38:08.983 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 04 21:38:08.983 INFO [stderr]   --> src/main.rs:82:30
Dec 04 21:38:08.983 INFO [stderr]    |
Dec 04 21:38:08.984 INFO [stderr] 82 |            String::from_utf8((utmp_struct.ut_user.iter().map(|&x| x as u8).collect())).unwrap());
Dec 04 21:38:08.984 INFO [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 04 21:38:08.984 INFO [stderr]    |
Dec 04 21:38:08.990 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 04 21:38:08.990 INFO [stderr] 
Dec 04 21:38:08.991 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 04 21:38:08.991 INFO [stderr]   --> src/main.rs:84:30
Dec 04 21:38:08.991 INFO [stderr]    |
Dec 04 21:38:08.991 INFO [stderr] 84 |            String::from_utf8((utmp_struct.ut_line.iter().map(|&x| x as u8).collect())).unwrap());
Dec 04 21:38:08.991 INFO [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 04 21:38:08.992 INFO [stderr] 
Dec 04 21:38:08.992 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 04 21:38:08.992 INFO [stderr]   --> src/main.rs:87:30
Dec 04 21:38:08.992 INFO [stderr]    |
Dec 04 21:38:08.992 INFO [stderr] 87 |            String::from_utf8((utmp_struct.ut_host.iter().map(|&x| x as u8).collect())).unwrap());
Dec 04 21:38:08.992 INFO [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 04 21:38:08.993 INFO [stderr] 
Dec 04 21:38:09.179 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 04 21:38:09.179 INFO [stderr]   --> src/main.rs:82:30
Dec 04 21:38:09.179 INFO [stderr]    |
Dec 04 21:38:09.180 INFO [stderr] 82 |            String::from_utf8((utmp_struct.ut_user.iter().map(|&x| x as u8).collect())).unwrap());
Dec 04 21:38:09.180 INFO [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 04 21:38:09.180 INFO [stderr]    |
Dec 04 21:38:09.180 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 04 21:38:09.180 INFO [stderr] 
Dec 04 21:38:09.180 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 04 21:38:09.181 INFO [stderr]   --> src/main.rs:84:30
Dec 04 21:38:09.181 INFO [stderr]    |
Dec 04 21:38:09.181 INFO [stderr] 84 |            String::from_utf8((utmp_struct.ut_line.iter().map(|&x| x as u8).collect())).unwrap());
Dec 04 21:38:09.181 INFO [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 04 21:38:09.181 INFO [stderr] 
Dec 04 21:38:09.182 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 04 21:38:09.182 INFO [stderr]   --> src/main.rs:87:30
Dec 04 21:38:09.182 INFO [stderr]    |
Dec 04 21:38:09.182 INFO [stderr] 87 |            String::from_utf8((utmp_struct.ut_host.iter().map(|&x| x as u8).collect())).unwrap());
Dec 04 21:38:09.182 INFO [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 04 21:38:09.183 INFO [stderr] 
Dec 04 21:38:09.299 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
Dec 04 21:38:09.302 INFO [stderr] su: No module specific data is present
Dec 04 21:38:10.206 INFO running `"docker" "inspect" "4d6e164fab545e2e2ca705cf6d5e24c0329a0d1574f84a5cbe9847e51ac2dcff"`
Dec 04 21:38:10.537 INFO running `"docker" "rm" "-f" "4d6e164fab545e2e2ca705cf6d5e24c0329a0d1574f84a5cbe9847e51ac2dcff"`
Dec 04 21:38:10.822 INFO [stdout] 4d6e164fab545e2e2ca705cf6d5e24c0329a0d1574f84a5cbe9847e51ac2dcff