Dec 04 19:44:34.396 INFO checking dlukes/simplify-tags against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 19:44:34.396 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 19:44:34.851 INFO [stdout] d9ebfc91c22fd5a1afe6b751ba0541c86cb4b20a752f7606251507b2c0c5af99
Dec 04 19:44:34.859 INFO running `"docker" "start" "-a" "d9ebfc91c22fd5a1afe6b751ba0541c86cb4b20a752f7606251507b2c0c5af99"`
Dec 04 19:44:36.015 INFO [stderr] usermod: no changes
Dec 04 19:44:36.103 INFO [stderr]     Checking regex v0.2.10
Dec 04 19:44:38.518 INFO [stderr]     Checking simplify_tags v0.1.0 (/source)
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/04-vetveni.rs:81:5
Dec 04 19:44:42.075 INFO [stderr]    |
Dec 04 19:44:42.075 INFO [stderr] 81 |     stdout.flush();
Dec 04 19:44:42.075 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:42.075 INFO [stderr]    |
Dec 04 19:44:42.075 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:42.075 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:42.075 INFO [stderr] 
Dec 04 19:44:42.656 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:42.656 INFO [stderr]   --> src/bin/01-drobnosti.rs:28:5
Dec 04 19:44:42.656 INFO [stderr]    |
Dec 04 19:44:42.656 INFO [stderr] 28 |     stdout.flush();
Dec 04 19:44:42.656 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:42.667 INFO [stderr]    |
Dec 04 19:44:42.667 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:42.667 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:42.667 INFO [stderr] 
Dec 04 19:44:43.219 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:43.219 INFO [stderr]   --> src/bin/04-vetveni.rs:81:5
Dec 04 19:44:43.219 INFO [stderr]    |
Dec 04 19:44:43.220 INFO [stderr] 81 |     stdout.flush();
Dec 04 19:44:43.220 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:43.220 INFO [stderr]    |
Dec 04 19:44:43.221 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:43.221 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:43.221 INFO [stderr] 
Dec 04 19:44:43.347 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:43.347 INFO [stderr]    --> src/bin/05-vetveni_bez_zbytecnych_alokaci.rs:102:5
Dec 04 19:44:43.347 INFO [stderr]     |
Dec 04 19:44:43.348 INFO [stderr] 102 |     stdout.flush();
Dec 04 19:44:43.348 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Dec 04 19:44:43.348 INFO [stderr]     |
Dec 04 19:44:43.349 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:43.349 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:43.349 INFO [stderr] 
Dec 04 19:44:43.499 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:43.499 INFO [stderr]   --> src/bin/06-bez_parsovani_utf8.rs:78:5
Dec 04 19:44:43.499 INFO [stderr]    |
Dec 04 19:44:43.499 INFO [stderr] 78 |     stdout.flush();
Dec 04 19:44:43.499 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:43.499 INFO [stderr]    |
Dec 04 19:44:43.500 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:43.500 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:43.500 INFO [stderr] 
Dec 04 19:44:43.707 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:43.707 INFO [stderr]   --> src/bin/03-jen_main.rs:56:5
Dec 04 19:44:43.707 INFO [stderr]    |
Dec 04 19:44:43.707 INFO [stderr] 56 |     stdout.flush();
Dec 04 19:44:43.707 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:43.707 INFO [stderr]    |
Dec 04 19:44:43.707 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:43.707 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:43.707 INFO [stderr] 
Dec 04 19:44:43.895 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:43.895 INFO [stderr]   --> src/bin/02-min_alokaci.rs:28:5
Dec 04 19:44:43.895 INFO [stderr]    |
Dec 04 19:44:43.896 INFO [stderr] 28 |     stdout.flush();
Dec 04 19:44:43.896 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:43.896 INFO [stderr]    |
Dec 04 19:44:43.897 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:43.897 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:43.897 INFO [stderr] 
Dec 04 19:44:46.111 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:46.111 INFO [stderr]    --> src/bin/05-vetveni_bez_zbytecnych_alokaci.rs:102:5
Dec 04 19:44:46.111 INFO [stderr]     |
Dec 04 19:44:46.111 INFO [stderr] 102 |     stdout.flush();
Dec 04 19:44:46.111 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Dec 04 19:44:46.111 INFO [stderr]     |
Dec 04 19:44:46.111 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:46.111 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:46.111 INFO [stderr] 
Dec 04 19:44:46.514 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:46.514 INFO [stderr]   --> src/bin/02-min_alokaci.rs:28:5
Dec 04 19:44:46.514 INFO [stderr]    |
Dec 04 19:44:46.514 INFO [stderr] 28 |     stdout.flush();
Dec 04 19:44:46.514 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:46.527 INFO [stderr]    |
Dec 04 19:44:46.527 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:46.527 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:46.527 INFO [stderr] 
Dec 04 19:44:46.645 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:46.645 INFO [stderr]   --> src/bin/03-jen_main.rs:56:5
Dec 04 19:44:46.645 INFO [stderr]    |
Dec 04 19:44:46.645 INFO [stderr] 56 |     stdout.flush();
Dec 04 19:44:46.645 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:46.645 INFO [stderr]    |
Dec 04 19:44:46.645 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:46.645 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:46.645 INFO [stderr] 
Dec 04 19:44:46.766 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:46.766 INFO [stderr]   --> src/bin/01-drobnosti.rs:28:5
Dec 04 19:44:46.766 INFO [stderr]    |
Dec 04 19:44:46.766 INFO [stderr] 28 |     stdout.flush();
Dec 04 19:44:46.766 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:46.766 INFO [stderr]    |
Dec 04 19:44:46.766 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:46.766 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:46.766 INFO [stderr] 
Dec 04 19:44:46.819 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:44:46.819 INFO [stderr]   --> src/bin/06-bez_parsovani_utf8.rs:78:5
Dec 04 19:44:46.819 INFO [stderr]    |
Dec 04 19:44:46.819 INFO [stderr] 78 |     stdout.flush();
Dec 04 19:44:46.819 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 19:44:46.819 INFO [stderr]    |
Dec 04 19:44:46.819 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 19:44:46.819 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:44:46.819 INFO [stderr] 
Dec 04 19:44:46.838 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.80s
Dec 04 19:44:46.839 INFO [stderr] su: No module specific data is present
Dec 04 19:44:47.433 INFO running `"docker" "inspect" "d9ebfc91c22fd5a1afe6b751ba0541c86cb4b20a752f7606251507b2c0c5af99"`
Dec 04 19:44:47.755 INFO running `"docker" "rm" "-f" "d9ebfc91c22fd5a1afe6b751ba0541c86cb4b20a752f7606251507b2c0c5af99"`
Dec 04 19:44:48.080 INFO [stdout] d9ebfc91c22fd5a1afe6b751ba0541c86cb4b20a752f7606251507b2c0c5af99