Dec 18 01:16:30.459 INFO checking dlukes/simplify-tags against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 01:16:30.459 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/dlukes/simplify-tags:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 01:16:30.997 INFO [stdout] 9fffa71c9b0ae29700c0dc89703000896bea6d16ce108ea9397a340efbf1a72c
Dec 18 01:16:30.999 INFO running `"docker" "start" "-a" "9fffa71c9b0ae29700c0dc89703000896bea6d16ce108ea9397a340efbf1a72c"`
Dec 18 01:16:31.900 INFO [stderr]     Checking regex v0.2.10
Dec 18 01:16:33.824 INFO [stderr]     Checking simplify_tags v0.1.0 (/opt/crater/workdir)
Dec 18 01:16:34.729 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:34.730 INFO [stderr]    --> src/bin/05-vetveni_bez_zbytecnych_alokaci.rs:102:5
Dec 18 01:16:34.730 INFO [stderr]     |
Dec 18 01:16:34.730 INFO [stderr] 102 |     stdout.flush();
Dec 18 01:16:34.731 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Dec 18 01:16:34.732 INFO [stderr]     |
Dec 18 01:16:34.732 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:34.732 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:34.732 INFO [stderr] 
Dec 18 01:16:35.001 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:35.001 INFO [stderr]   --> src/bin/03-jen_main.rs:56:5
Dec 18 01:16:35.001 INFO [stderr]    |
Dec 18 01:16:35.001 INFO [stderr] 56 |     stdout.flush();
Dec 18 01:16:35.001 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:35.001 INFO [stderr]    |
Dec 18 01:16:35.001 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:35.001 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:35.001 INFO [stderr] 
Dec 18 01:16:35.124 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:35.125 INFO [stderr]   --> src/bin/03-jen_main.rs:56:5
Dec 18 01:16:35.125 INFO [stderr]    |
Dec 18 01:16:35.125 INFO [stderr] 56 |     stdout.flush();
Dec 18 01:16:35.125 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:35.126 INFO [stderr]    |
Dec 18 01:16:35.126 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:35.126 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:35.127 INFO [stderr] 
Dec 18 01:16:35.152 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:35.153 INFO [stderr]   --> src/bin/04-vetveni.rs:81:5
Dec 18 01:16:35.153 INFO [stderr]    |
Dec 18 01:16:35.153 INFO [stderr] 81 |     stdout.flush();
Dec 18 01:16:35.154 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:35.154 INFO [stderr]    |
Dec 18 01:16:35.154 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:35.154 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:35.154 INFO [stderr] 
Dec 18 01:16:35.397 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:35.398 INFO [stderr]   --> src/bin/04-vetveni.rs:81:5
Dec 18 01:16:35.398 INFO [stderr]    |
Dec 18 01:16:35.398 INFO [stderr] 81 |     stdout.flush();
Dec 18 01:16:35.399 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:35.399 INFO [stderr]    |
Dec 18 01:16:35.399 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:35.400 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:35.400 INFO [stderr] 
Dec 18 01:16:35.820 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:35.820 INFO [stderr]    --> src/bin/05-vetveni_bez_zbytecnych_alokaci.rs:102:5
Dec 18 01:16:35.820 INFO [stderr]     |
Dec 18 01:16:35.820 INFO [stderr] 102 |     stdout.flush();
Dec 18 01:16:35.820 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Dec 18 01:16:35.852 INFO [stderr]     |
Dec 18 01:16:35.852 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:35.852 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:35.852 INFO [stderr] 
Dec 18 01:16:36.225 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:36.225 INFO [stderr]   --> src/bin/06-bez_parsovani_utf8.rs:78:5
Dec 18 01:16:36.225 INFO [stderr]    |
Dec 18 01:16:36.225 INFO [stderr] 78 |     stdout.flush();
Dec 18 01:16:36.225 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:36.225 INFO [stderr]    |
Dec 18 01:16:36.225 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:36.225 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:36.225 INFO [stderr] 
Dec 18 01:16:36.319 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:36.319 INFO [stderr]   --> src/bin/02-min_alokaci.rs:28:5
Dec 18 01:16:36.319 INFO [stderr]    |
Dec 18 01:16:36.319 INFO [stderr] 28 |     stdout.flush();
Dec 18 01:16:36.319 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:36.319 INFO [stderr]    |
Dec 18 01:16:36.319 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:36.319 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:36.319 INFO [stderr] 
Dec 18 01:16:36.436 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:36.436 INFO [stderr]   --> src/bin/02-min_alokaci.rs:28:5
Dec 18 01:16:36.436 INFO [stderr]    |
Dec 18 01:16:36.436 INFO [stderr] 28 |     stdout.flush();
Dec 18 01:16:36.436 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:36.436 INFO [stderr]    |
Dec 18 01:16:36.436 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:36.436 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:36.436 INFO [stderr] 
Dec 18 01:16:36.443 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:36.443 INFO [stderr]   --> src/bin/01-drobnosti.rs:28:5
Dec 18 01:16:36.443 INFO [stderr]    |
Dec 18 01:16:36.443 INFO [stderr] 28 |     stdout.flush();
Dec 18 01:16:36.443 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:36.443 INFO [stderr]    |
Dec 18 01:16:36.443 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:36.443 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:36.443 INFO [stderr] 
Dec 18 01:16:36.532 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:36.532 INFO [stderr]   --> src/bin/01-drobnosti.rs:28:5
Dec 18 01:16:36.532 INFO [stderr]    |
Dec 18 01:16:36.532 INFO [stderr] 28 |     stdout.flush();
Dec 18 01:16:36.532 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:36.556 INFO [stderr]    |
Dec 18 01:16:36.556 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:36.556 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:36.556 INFO [stderr] 
Dec 18 01:16:36.720 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:36.720 INFO [stderr]   --> src/bin/06-bez_parsovani_utf8.rs:78:5
Dec 18 01:16:36.720 INFO [stderr]    |
Dec 18 01:16:36.720 INFO [stderr] 78 |     stdout.flush();
Dec 18 01:16:36.720 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:36.720 INFO [stderr]    |
Dec 18 01:16:36.720 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:36.720 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:36.720 INFO [stderr] 
Dec 18 01:16:36.757 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.88s
Dec 18 01:16:37.788 INFO running `"docker" "inspect" "9fffa71c9b0ae29700c0dc89703000896bea6d16ce108ea9397a340efbf1a72c"`
Dec 18 01:16:38.116 INFO running `"docker" "rm" "-f" "9fffa71c9b0ae29700c0dc89703000896bea6d16ce108ea9397a340efbf1a72c"`
Dec 18 01:16:38.408 INFO [stdout] 9fffa71c9b0ae29700c0dc89703000896bea6d16ce108ea9397a340efbf1a72c