Nov 28 06:27:41.919 INFO checking dlukes/simplify-tags against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 06:27:41.919 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-1/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 06:27:42.350 INFO [stdout] bcd355425f27ad4b087b955cc0c46a39584e64f84da2d482f244cf91849fb67b
Nov 28 06:27:42.362 INFO running `"docker" "start" "-a" "bcd355425f27ad4b087b955cc0c46a39584e64f84da2d482f244cf91849fb67b"`
Nov 28 06:27:43.385 INFO [stderr] usermod: no changes
Nov 28 06:27:43.496 INFO [stderr]     Checking simplify_tags v0.1.0 (/source)
Nov 28 06:27:47.492 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 06:27:47.493 INFO [stderr]    --> src/bin/05-vetveni_bez_zbytecnych_alokaci.rs:102:5
Nov 28 06:27:47.493 INFO [stderr]     |
Nov 28 06:27:47.494 INFO [stderr] 102 |     stdout.flush();
Nov 28 06:27:47.494 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Nov 28 06:27:47.495 INFO [stderr]     |
Nov 28 06:27:47.495 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 06:27:47.496 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 06:27:47.496 INFO [stderr] 
Nov 28 06:27:47.639 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 06:27:47.640 INFO [stderr]   --> src/bin/02-min_alokaci.rs:28:5
Nov 28 06:27:47.640 INFO [stderr]    |
Nov 28 06:27:47.641 INFO [stderr] 28 |     stdout.flush();
Nov 28 06:27:47.641 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 06:27:47.642 INFO [stderr]    |
Nov 28 06:27:47.642 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 06:27:47.643 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 06:27:47.643 INFO [stderr] 
Nov 28 06:27:47.860 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 06:27:47.860 INFO [stderr]   --> src/bin/01-drobnosti.rs:28:5
Nov 28 06:27:47.860 INFO [stderr]    |
Nov 28 06:27:47.860 INFO [stderr] 28 |     stdout.flush();
Nov 28 06:27:47.860 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 06:27:47.860 INFO [stderr]    |
Nov 28 06:27:47.860 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 06:27:47.860 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 06:27:47.860 INFO [stderr] 
Nov 28 06:27:47.980 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 06:27:47.981 INFO [stderr]    --> src/bin/05-vetveni_bez_zbytecnych_alokaci.rs:102:5
Nov 28 06:27:47.982 INFO [stderr]     |
Nov 28 06:27:47.982 INFO [stderr] 102 |     stdout.flush();
Nov 28 06:27:47.983 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Nov 28 06:27:47.983 INFO [stderr]     |
Nov 28 06:27:47.984 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 06:27:47.984 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 06:27:47.985 INFO [stderr] 
Nov 28 06:27:48.272 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 06:27:48.273 INFO [stderr]   --> src/bin/03-jen_main.rs:56:5
Nov 28 06:27:48.274 INFO [stderr]    |
Nov 28 06:27:48.275 INFO [stderr] 56 |     stdout.flush();
Nov 28 06:27:48.275 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 06:27:48.284 INFO [stderr]    |
Nov 28 06:27:48.285 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 06:27:48.286 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 06:27:48.286 INFO [stderr] 
Nov 28 06:27:48.732 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 06:27:48.733 INFO [stderr]   --> src/bin/04-vetveni.rs:81:5
Nov 28 06:27:48.734 INFO [stderr]    |
Nov 28 06:27:48.735 INFO [stderr] 81 |     stdout.flush();
Nov 28 06:27:48.735 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 06:27:48.757 INFO [stderr]    |
Nov 28 06:27:48.758 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 06:27:48.759 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 06:27:48.759 INFO [stderr] 
Nov 28 06:27:48.956 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 06:27:48.956 INFO [stderr]   --> src/bin/03-jen_main.rs:56:5
Nov 28 06:27:48.957 INFO [stderr]    |
Nov 28 06:27:48.958 INFO [stderr] 56 |     stdout.flush();
Nov 28 06:27:48.958 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 06:27:48.959 INFO [stderr]    |
Nov 28 06:27:48.959 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 06:27:48.960 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 06:27:48.960 INFO [stderr] 
Nov 28 06:27:49.044 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 06:27:49.045 INFO [stderr]   --> src/bin/01-drobnosti.rs:28:5
Nov 28 06:27:49.046 INFO [stderr]    |
Nov 28 06:27:49.047 INFO [stderr] 28 |     stdout.flush();
Nov 28 06:27:49.047 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 06:27:49.048 INFO [stderr]    |
Nov 28 06:27:49.048 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 06:27:49.049 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 06:27:49.050 INFO [stderr] 
Nov 28 06:27:51.164 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 06:27:51.164 INFO [stderr]   --> src/bin/06-bez_parsovani_utf8.rs:78:5
Nov 28 06:27:51.165 INFO [stderr]    |
Nov 28 06:27:51.165 INFO [stderr] 78 |     stdout.flush();
Nov 28 06:27:51.166 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 06:27:51.167 INFO [stderr]    |
Nov 28 06:27:51.168 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 06:27:51.168 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 06:27:51.169 INFO [stderr] 
Nov 28 06:27:51.796 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 06:27:51.797 INFO [stderr]   --> src/bin/04-vetveni.rs:81:5
Nov 28 06:27:51.798 INFO [stderr]    |
Nov 28 06:27:51.799 INFO [stderr] 81 |     stdout.flush();
Nov 28 06:27:51.799 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 06:27:51.800 INFO [stderr]    |
Nov 28 06:27:51.801 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 06:27:51.801 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 06:27:51.802 INFO [stderr] 
Nov 28 06:27:51.939 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 06:27:51.940 INFO [stderr]   --> src/bin/02-min_alokaci.rs:28:5
Nov 28 06:27:51.940 INFO [stderr]    |
Nov 28 06:27:51.941 INFO [stderr] 28 |     stdout.flush();
Nov 28 06:27:51.942 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 06:27:51.942 INFO [stderr]    |
Nov 28 06:27:51.943 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 06:27:51.944 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 06:27:51.944 INFO [stderr] 
Nov 28 06:27:51.964 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 06:27:51.965 INFO [stderr]   --> src/bin/06-bez_parsovani_utf8.rs:78:5
Nov 28 06:27:51.966 INFO [stderr]    |
Nov 28 06:27:51.966 INFO [stderr] 78 |     stdout.flush();
Nov 28 06:27:51.967 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 06:27:51.968 INFO [stderr]    |
Nov 28 06:27:51.968 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 06:27:51.969 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 06:27:51.969 INFO [stderr] 
Nov 28 06:27:52.025 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.62s
Nov 28 06:27:52.030 INFO [stderr] su: No module specific data is present
Nov 28 06:27:53.004 INFO running `"docker" "inspect" "bcd355425f27ad4b087b955cc0c46a39584e64f84da2d482f244cf91849fb67b"`
Nov 28 06:27:53.297 INFO running `"docker" "rm" "-f" "bcd355425f27ad4b087b955cc0c46a39584e64f84da2d482f244cf91849fb67b"`
Nov 28 06:27:53.542 INFO [stdout] bcd355425f27ad4b087b955cc0c46a39584e64f84da2d482f244cf91849fb67b