Dec 19 17:14:59.063 INFO checking errorport/rustbeat against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 17:14:59.063 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/errorport/rustbeat:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 17:14:59.421 INFO [stdout] a99743483b013d2d208200256ade78b12cd85ff6a94a9701bd8ab7a124b243c7
Dec 19 17:14:59.426 INFO running `"docker" "start" "-a" "a99743483b013d2d208200256ade78b12cd85ff6a94a9701bd8ab7a124b243c7"`
Dec 19 17:15:00.980 INFO [stderr]     Checking deep_unknown v0.1.0 (/opt/crater/workdir)
Dec 19 17:15:01.448 INFO [stderr] warning: unnecessary parentheses around assigned value
Dec 19 17:15:01.448 INFO [stderr]   --> src/main.rs:18:6
Dec 19 17:15:01.448 INFO [stderr]    |
Dec 19 17:15:01.448 INFO [stderr] 18 |         t+=(increment[increment_index] as i64);
Dec 19 17:15:01.448 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 17:15:01.448 INFO [stderr]    |
Dec 19 17:15:01.448 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 19 17:15:01.448 INFO [stderr] 
Dec 19 17:15:01.464 INFO [stderr] warning: unnecessary parentheses around assigned value
Dec 19 17:15:01.464 INFO [stderr]   --> src/main.rs:18:6
Dec 19 17:15:01.464 INFO [stderr]    |
Dec 19 17:15:01.464 INFO [stderr] 18 |         t+=(increment[increment_index] as i64);
Dec 19 17:15:01.464 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 17:15:01.464 INFO [stderr]    |
Dec 19 17:15:01.464 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 19 17:15:01.464 INFO [stderr] 
Dec 19 17:15:01.508 INFO [stderr] warning: unused variable: `rng`
Dec 19 17:15:01.508 INFO [stderr]  --> src/main.rs:6:10
Dec 19 17:15:01.508 INFO [stderr]   |
Dec 19 17:15:01.508 INFO [stderr] 6 |     let mut rng = thread_rng();
Dec 19 17:15:01.508 INFO [stderr]   |             ^^^ help: consider using `_rng` instead
Dec 19 17:15:01.524 INFO [stderr]   |
Dec 19 17:15:01.524 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 19 17:15:01.524 INFO [stderr] 
Dec 19 17:15:01.524 INFO [stderr] warning: value assigned to `s` is never read
Dec 19 17:15:01.524 INFO [stderr]   --> src/main.rs:32:10
Dec 19 17:15:01.524 INFO [stderr]    |
Dec 19 17:15:01.524 INFO [stderr] 32 |     let mut s: i64 = 0;
Dec 19 17:15:01.524 INFO [stderr]    |             ^
Dec 19 17:15:01.524 INFO [stderr]    |
Dec 19 17:15:01.524 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 17:15:01.524 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 17:15:01.524 INFO [stderr] 
Dec 19 17:15:01.524 INFO [stderr] warning: value assigned to `s` is never read
Dec 19 17:15:01.524 INFO [stderr]   --> src/main.rs:38:10
Dec 19 17:15:01.524 INFO [stderr]    |
Dec 19 17:15:01.524 INFO [stderr] 38 |     let mut s: i64 = 0;
Dec 19 17:15:01.525 INFO [stderr]    |             ^
Dec 19 17:15:01.525 INFO [stderr]    |
Dec 19 17:15:01.525 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 17:15:01.525 INFO [stderr] 
Dec 19 17:15:01.525 INFO [stderr] warning: value assigned to `s` is never read
Dec 19 17:15:01.525 INFO [stderr]   --> src/main.rs:44:10
Dec 19 17:15:01.525 INFO [stderr]    |
Dec 19 17:15:01.525 INFO [stderr] 44 |     let mut s: i64 = 0;
Dec 19 17:15:01.525 INFO [stderr]    |             ^
Dec 19 17:15:01.525 INFO [stderr]    |
Dec 19 17:15:01.525 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 17:15:01.525 INFO [stderr] 
Dec 19 17:15:01.525 INFO [stderr] warning: variable does not need to be mutable
Dec 19 17:15:01.525 INFO [stderr]  --> src/main.rs:6:6
Dec 19 17:15:01.525 INFO [stderr]   |
Dec 19 17:15:01.525 INFO [stderr] 6 |     let mut rng = thread_rng();
Dec 19 17:15:01.525 INFO [stderr]   |         ----^^^
Dec 19 17:15:01.525 INFO [stderr]   |         |
Dec 19 17:15:01.525 INFO [stderr]   |         help: remove this `mut`
Dec 19 17:15:01.525 INFO [stderr]   |
Dec 19 17:15:01.525 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 19 17:15:01.525 INFO [stderr] 
Dec 19 17:15:01.536 INFO [stderr] warning: unused variable: `rng`
Dec 19 17:15:01.536 INFO [stderr]  --> src/main.rs:6:10
Dec 19 17:15:01.536 INFO [stderr]   |
Dec 19 17:15:01.536 INFO [stderr] 6 |     let mut rng = thread_rng();
Dec 19 17:15:01.536 INFO [stderr]   |             ^^^ help: consider using `_rng` instead
Dec 19 17:15:01.536 INFO [stderr]   |
Dec 19 17:15:01.536 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 19 17:15:01.536 INFO [stderr] 
Dec 19 17:15:01.536 INFO [stderr] warning: value assigned to `s` is never read
Dec 19 17:15:01.536 INFO [stderr]   --> src/main.rs:32:10
Dec 19 17:15:01.536 INFO [stderr]    |
Dec 19 17:15:01.536 INFO [stderr] 32 |     let mut s: i64 = 0;
Dec 19 17:15:01.536 INFO [stderr]    |             ^
Dec 19 17:15:01.536 INFO [stderr]    |
Dec 19 17:15:01.536 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 17:15:01.536 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 17:15:01.536 INFO [stderr] 
Dec 19 17:15:01.536 INFO [stderr] warning: value assigned to `s` is never read
Dec 19 17:15:01.536 INFO [stderr]   --> src/main.rs:38:10
Dec 19 17:15:01.537 INFO [stderr]    |
Dec 19 17:15:01.537 INFO [stderr] 38 |     let mut s: i64 = 0;
Dec 19 17:15:01.537 INFO [stderr]    |             ^
Dec 19 17:15:01.537 INFO [stderr]    |
Dec 19 17:15:01.537 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 17:15:01.537 INFO [stderr] 
Dec 19 17:15:01.537 INFO [stderr] warning: value assigned to `s` is never read
Dec 19 17:15:01.537 INFO [stderr]   --> src/main.rs:44:10
Dec 19 17:15:01.537 INFO [stderr]    |
Dec 19 17:15:01.537 INFO [stderr] 44 |     let mut s: i64 = 0;
Dec 19 17:15:01.537 INFO [stderr]    |             ^
Dec 19 17:15:01.537 INFO [stderr]    |
Dec 19 17:15:01.537 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 17:15:01.537 INFO [stderr] 
Dec 19 17:15:01.556 INFO [stderr] warning: variable does not need to be mutable
Dec 19 17:15:01.556 INFO [stderr]  --> src/main.rs:6:6
Dec 19 17:15:01.556 INFO [stderr]   |
Dec 19 17:15:01.556 INFO [stderr] 6 |     let mut rng = thread_rng();
Dec 19 17:15:01.556 INFO [stderr]   |         ----^^^
Dec 19 17:15:01.556 INFO [stderr]   |         |
Dec 19 17:15:01.556 INFO [stderr]   |         help: remove this `mut`
Dec 19 17:15:01.556 INFO [stderr]   |
Dec 19 17:15:01.556 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 19 17:15:01.556 INFO [stderr] 
Dec 19 17:15:01.592 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
Dec 19 17:15:02.422 INFO running `"docker" "inspect" "a99743483b013d2d208200256ade78b12cd85ff6a94a9701bd8ab7a124b243c7"`
Dec 19 17:15:02.669 INFO running `"docker" "rm" "-f" "a99743483b013d2d208200256ade78b12cd85ff6a94a9701bd8ab7a124b243c7"`
Dec 19 17:15:02.956 INFO [stdout] a99743483b013d2d208200256ade78b12cd85ff6a94a9701bd8ab7a124b243c7