Dec 04 19:44:34.148 INFO checking dlukes/simplify-tags against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 19:44:34.148 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 19:44:34.552 INFO [stdout] 242132e3789c991f13b89c9f3f18869c81de369b3a0782085d6cb25865cd9a44
Dec 04 19:44:34.559 INFO running `"docker" "start" "-a" "242132e3789c991f13b89c9f3f18869c81de369b3a0782085d6cb25865cd9a44"`
Dec 04 19:44:35.581 INFO [stderr] usermod: no changes
Dec 04 19:44:35.703 INFO [stderr]     Checking regex v0.2.10
Dec 04 19:44:38.211 INFO [stderr]     Checking simplify_tags v0.1.0 (/source)
Dec 04 19:44:39.992 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:39.992 INFO [stderr]    --> src/bin/05-vetveni_bez_zbytecnych_alokaci.rs:102:5
Dec 04 19:44:39.992 INFO [stderr]     |
Dec 04 19:44:39.992 INFO [stderr] 102 |     stdout.flush();
Dec 04 19:44:39.992 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Dec 04 19:44:40.009 INFO [stderr]     |
Dec 04 19:44:40.009 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:40.009 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:40.009 INFO [stderr] 
Dec 04 19:44:41.187 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:41.187 INFO [stderr]   --> src/bin/02-min_alokaci.rs:28:5
Dec 04 19:44:41.187 INFO [stderr]    |
Dec 04 19:44:41.187 INFO [stderr] 28 |     stdout.flush();
Dec 04 19:44:41.187 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:41.195 INFO [stderr]    |
Dec 04 19:44:41.203 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:41.203 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:41.203 INFO [stderr] 
Dec 04 19:44:41.290 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:41.290 INFO [stderr]   --> src/bin/01-drobnosti.rs:28:5
Dec 04 19:44:41.290 INFO [stderr]    |
Dec 04 19:44:41.290 INFO [stderr] 28 |     stdout.flush();
Dec 04 19:44:41.290 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:41.290 INFO [stderr]    |
Dec 04 19:44:41.290 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:41.290 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:41.290 INFO [stderr] 
Dec 04 19:44:41.307 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:41.307 INFO [stderr]   --> src/bin/06-bez_parsovani_utf8.rs:78:5
Dec 04 19:44:41.307 INFO [stderr]    |
Dec 04 19:44:41.307 INFO [stderr] 78 |     stdout.flush();
Dec 04 19:44:41.307 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:41.307 INFO [stderr]    |
Dec 04 19:44:41.307 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:41.307 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:41.307 INFO [stderr] 
Dec 04 19:44:42.075 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:42.075 INFO [stderr]   --> src/bin/01-drobnosti.rs:28:5
Dec 04 19:44:42.075 INFO [stderr]    |
Dec 04 19:44:42.075 INFO [stderr] 28 |     stdout.flush();
Dec 04 19:44:42.075 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:42.091 INFO [stderr]    |
Dec 04 19:44:42.091 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:42.091 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:42.091 INFO [stderr] 
Dec 04 19:44:42.515 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:42.515 INFO [stderr]   --> src/bin/06-bez_parsovani_utf8.rs:78:5
Dec 04 19:44:42.515 INFO [stderr]    |
Dec 04 19:44:42.516 INFO [stderr] 78 |     stdout.flush();
Dec 04 19:44:42.516 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:42.519 INFO [stderr]    |
Dec 04 19:44:42.519 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:42.519 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:42.519 INFO [stderr] 
Dec 04 19:44:43.091 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:43.091 INFO [stderr]   --> src/bin/03-jen_main.rs:56:5
Dec 04 19:44:43.091 INFO [stderr]    |
Dec 04 19:44:43.091 INFO [stderr] 56 |     stdout.flush();
Dec 04 19:44:43.091 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:43.091 INFO [stderr]    |
Dec 04 19:44:43.091 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:43.091 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:43.091 INFO [stderr] 
Dec 04 19:44:44.449 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:44.449 INFO [stderr]   --> src/bin/02-min_alokaci.rs:28:5
Dec 04 19:44:44.449 INFO [stderr]    |
Dec 04 19:44:44.449 INFO [stderr] 28 |     stdout.flush();
Dec 04 19:44:44.449 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:44.449 INFO [stderr]    |
Dec 04 19:44:44.449 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:44.449 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:44.449 INFO [stderr] 
Dec 04 19:44:44.736 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:44.736 INFO [stderr]   --> src/bin/04-vetveni.rs:81:5
Dec 04 19:44:44.736 INFO [stderr]    |
Dec 04 19:44:44.736 INFO [stderr] 81 |     stdout.flush();
Dec 04 19:44:44.736 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:44.736 INFO [stderr]    |
Dec 04 19:44:44.736 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:44.736 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:44.736 INFO [stderr] 
Dec 04 19:44:45.163 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:45.163 INFO [stderr]   --> src/bin/04-vetveni.rs:81:5
Dec 04 19:44:45.163 INFO [stderr]    |
Dec 04 19:44:45.164 INFO [stderr] 81 |     stdout.flush();
Dec 04 19:44:45.164 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:45.164 INFO [stderr]    |
Dec 04 19:44:45.165 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:45.165 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:45.165 INFO [stderr] 
Dec 04 19:44:45.187 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:45.187 INFO [stderr]   --> src/bin/03-jen_main.rs:56:5
Dec 04 19:44:45.187 INFO [stderr]    |
Dec 04 19:44:45.187 INFO [stderr] 56 |     stdout.flush();
Dec 04 19:44:45.188 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:45.188 INFO [stderr]    |
Dec 04 19:44:45.188 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:45.188 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:45.188 INFO [stderr] 
Dec 04 19:44:45.440 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:45.440 INFO [stderr]    --> src/bin/05-vetveni_bez_zbytecnych_alokaci.rs:102:5
Dec 04 19:44:45.441 INFO [stderr]     |
Dec 04 19:44:45.441 INFO [stderr] 102 |     stdout.flush();
Dec 04 19:44:45.441 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Dec 04 19:44:45.441 INFO [stderr]     |
Dec 04 19:44:45.442 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:45.442 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:45.442 INFO [stderr] 
Dec 04 19:44:45.491 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.87s
Dec 04 19:44:45.499 INFO [stderr] su: No module specific data is present
Dec 04 19:44:46.766 INFO running `"docker" "inspect" "242132e3789c991f13b89c9f3f18869c81de369b3a0782085d6cb25865cd9a44"`
Dec 04 19:44:46.950 INFO running `"docker" "rm" "-f" "242132e3789c991f13b89c9f3f18869c81de369b3a0782085d6cb25865cd9a44"`
Dec 04 19:44:47.224 INFO [stdout] 242132e3789c991f13b89c9f3f18869c81de369b3a0782085d6cb25865cd9a44