Dec 11 19:35:09.601 INFO checking dlukes/simplify-tags against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 19:35:09.602 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 11 19:35:09.878 INFO [stdout] 122967cde2c77ef2b2499f6bac81aaeb2904cbf63b480537637c3e147efb0ced
Dec 11 19:35:09.882 INFO running `"docker" "start" "-a" "122967cde2c77ef2b2499f6bac81aaeb2904cbf63b480537637c3e147efb0ced"`
Dec 11 19:35:10.858 INFO [stderr] usermod: no changes
Dec 11 19:35:10.935 INFO [stderr]     Checking regex v0.2.10
Dec 11 19:35:13.316 INFO [stderr]     Checking simplify_tags v0.1.0 (/source)
Dec 11 19:35:16.584 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 19:35:16.584 INFO [stderr]   --> src/bin/02-min_alokaci.rs:28:5
Dec 11 19:35:16.584 INFO [stderr]    |
Dec 11 19:35:16.584 INFO [stderr] 28 |     stdout.flush();
Dec 11 19:35:16.584 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 11 19:35:16.584 INFO [stderr]    |
Dec 11 19:35:16.584 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 19:35:16.585 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 19:35:16.585 INFO [stderr] 
Dec 11 19:35:16.880 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 19:35:16.881 INFO [stderr]    --> src/bin/05-vetveni_bez_zbytecnych_alokaci.rs:102:5
Dec 11 19:35:16.881 INFO [stderr]     |
Dec 11 19:35:16.881 INFO [stderr] 102 |     stdout.flush();
Dec 11 19:35:16.882 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Dec 11 19:35:16.882 INFO [stderr]     |
Dec 11 19:35:16.882 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 19:35:16.882 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 19:35:16.883 INFO [stderr] 
Dec 11 19:35:17.016 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 19:35:17.017 INFO [stderr]   --> src/bin/02-min_alokaci.rs:28:5
Dec 11 19:35:17.017 INFO [stderr]    |
Dec 11 19:35:17.017 INFO [stderr] 28 |     stdout.flush();
Dec 11 19:35:17.017 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 11 19:35:17.018 INFO [stderr]    |
Dec 11 19:35:17.018 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 19:35:17.018 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 19:35:17.018 INFO [stderr] 
Dec 11 19:35:17.097 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 19:35:17.097 INFO [stderr]   --> src/bin/01-drobnosti.rs:28:5
Dec 11 19:35:17.097 INFO [stderr]    |
Dec 11 19:35:17.098 INFO [stderr] 28 |     stdout.flush();
Dec 11 19:35:17.098 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 11 19:35:17.098 INFO [stderr]    |
Dec 11 19:35:17.098 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 19:35:17.099 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 19:35:17.099 INFO [stderr] 
Dec 11 19:35:17.828 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 19:35:17.829 INFO [stderr]   --> src/bin/04-vetveni.rs:81:5
Dec 11 19:35:17.829 INFO [stderr]    |
Dec 11 19:35:17.829 INFO [stderr] 81 |     stdout.flush();
Dec 11 19:35:17.830 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 11 19:35:17.830 INFO [stderr]    |
Dec 11 19:35:17.830 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 19:35:17.830 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 19:35:17.831 INFO [stderr] 
Dec 11 19:35:17.872 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 19:35:17.873 INFO [stderr]    --> src/bin/05-vetveni_bez_zbytecnych_alokaci.rs:102:5
Dec 11 19:35:17.873 INFO [stderr]     |
Dec 11 19:35:17.873 INFO [stderr] 102 |     stdout.flush();
Dec 11 19:35:17.873 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Dec 11 19:35:17.874 INFO [stderr]     |
Dec 11 19:35:17.874 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 19:35:17.874 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 19:35:17.874 INFO [stderr] 
Dec 11 19:35:17.972 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 19:35:17.972 INFO [stderr]   --> src/bin/06-bez_parsovani_utf8.rs:78:5
Dec 11 19:35:17.972 INFO [stderr]    |
Dec 11 19:35:17.972 INFO [stderr] 78 |     stdout.flush();
Dec 11 19:35:17.972 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 11 19:35:17.972 INFO [stderr]    |
Dec 11 19:35:17.972 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 19:35:17.972 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 19:35:17.972 INFO [stderr] 
Dec 11 19:35:18.112 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 19:35:18.113 INFO [stderr]   --> src/bin/04-vetveni.rs:81:5
Dec 11 19:35:18.113 INFO [stderr]    |
Dec 11 19:35:18.113 INFO [stderr] 81 |     stdout.flush();
Dec 11 19:35:18.114 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 11 19:35:18.114 INFO [stderr]    |
Dec 11 19:35:18.114 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 19:35:18.115 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 19:35:18.115 INFO [stderr] 
Dec 11 19:35:19.664 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 19:35:19.665 INFO [stderr]   --> src/bin/03-jen_main.rs:56:5
Dec 11 19:35:19.665 INFO [stderr]    |
Dec 11 19:35:19.665 INFO [stderr] 56 |     stdout.flush();
Dec 11 19:35:19.665 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 11 19:35:19.665 INFO [stderr]    |
Dec 11 19:35:19.665 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 19:35:19.665 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 19:35:19.665 INFO [stderr] 
Dec 11 19:35:20.112 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 19:35:20.112 INFO [stderr]   --> src/bin/01-drobnosti.rs:28:5
Dec 11 19:35:20.112 INFO [stderr]    |
Dec 11 19:35:20.112 INFO [stderr] 28 |     stdout.flush();
Dec 11 19:35:20.112 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 11 19:35:20.112 INFO [stderr]    |
Dec 11 19:35:20.112 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 19:35:20.112 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 19:35:20.112 INFO [stderr] 
Dec 11 19:35:20.384 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 19:35:20.384 INFO [stderr]   --> src/bin/03-jen_main.rs:56:5
Dec 11 19:35:20.384 INFO [stderr]    |
Dec 11 19:35:20.384 INFO [stderr] 56 |     stdout.flush();
Dec 11 19:35:20.384 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 11 19:35:20.384 INFO [stderr]    |
Dec 11 19:35:20.384 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 19:35:20.384 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 19:35:20.384 INFO [stderr] 
Dec 11 19:35:20.400 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 19:35:20.400 INFO [stderr]   --> src/bin/06-bez_parsovani_utf8.rs:78:5
Dec 11 19:35:20.400 INFO [stderr]    |
Dec 11 19:35:20.400 INFO [stderr] 78 |     stdout.flush();
Dec 11 19:35:20.400 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 11 19:35:20.400 INFO [stderr]    |
Dec 11 19:35:20.400 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 19:35:20.400 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 19:35:20.400 INFO [stderr] 
Dec 11 19:35:20.556 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.67s
Dec 11 19:35:20.558 INFO [stderr] su: No module specific data is present
Dec 11 19:35:21.222 INFO running `"docker" "inspect" "122967cde2c77ef2b2499f6bac81aaeb2904cbf63b480537637c3e147efb0ced"`
Dec 11 19:35:21.510 INFO running `"docker" "rm" "-f" "122967cde2c77ef2b2499f6bac81aaeb2904cbf63b480537637c3e147efb0ced"`
Dec 11 19:35:21.765 INFO [stdout] 122967cde2c77ef2b2499f6bac81aaeb2904cbf63b480537637c3e147efb0ced