Nov 30 04:03:40.605 INFO checking dlukes/simplify-tags against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 04:03:40.605 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-7/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 30 04:03:41.109 INFO [stdout] 4550c7fe1a68f004b356d5e8f79fe993acfc7525b3c8eaebd6660a1046bc22e2
Nov 30 04:03:41.112 INFO running `"docker" "start" "-a" "4550c7fe1a68f004b356d5e8f79fe993acfc7525b3c8eaebd6660a1046bc22e2"`
Nov 30 04:03:43.096 INFO [stderr] usermod: no changes
Nov 30 04:03:43.176 INFO [stderr]     Checking regex v0.2.10
Nov 30 04:03:45.868 INFO [stderr]     Checking simplify_tags v0.1.0 (/source)
Nov 30 04:03:49.459 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 04:03:49.459 INFO [stderr]   --> src/bin/02-min_alokaci.rs:28:5
Nov 30 04:03:49.459 INFO [stderr]    |
Nov 30 04:03:49.460 INFO [stderr] 28 |     stdout.flush();
Nov 30 04:03:49.460 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 30 04:03:49.460 INFO [stderr]    |
Nov 30 04:03:49.461 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 04:03:49.461 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 04:03:49.461 INFO [stderr] 
Nov 30 04:03:49.633 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 04:03:49.633 INFO [stderr]   --> src/bin/01-drobnosti.rs:28:5
Nov 30 04:03:49.634 INFO [stderr]    |
Nov 30 04:03:49.634 INFO [stderr] 28 |     stdout.flush();
Nov 30 04:03:49.634 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 30 04:03:49.635 INFO [stderr]    |
Nov 30 04:03:49.635 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 04:03:49.635 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 04:03:49.636 INFO [stderr] 
Nov 30 04:03:50.356 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 04:03:50.357 INFO [stderr]   --> src/bin/03-jen_main.rs:56:5
Nov 30 04:03:50.357 INFO [stderr]    |
Nov 30 04:03:50.357 INFO [stderr] 56 |     stdout.flush();
Nov 30 04:03:50.358 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 30 04:03:50.358 INFO [stderr]    |
Nov 30 04:03:50.358 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 04:03:50.359 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 04:03:50.359 INFO [stderr] 
Nov 30 04:03:50.514 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 04:03:50.514 INFO [stderr]   --> src/bin/03-jen_main.rs:56:5
Nov 30 04:03:50.514 INFO [stderr]    |
Nov 30 04:03:50.514 INFO [stderr] 56 |     stdout.flush();
Nov 30 04:03:50.514 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 30 04:03:50.548 INFO [stderr]    |
Nov 30 04:03:50.549 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 04:03:50.549 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 04:03:50.549 INFO [stderr] 
Nov 30 04:03:50.864 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 04:03:50.865 INFO [stderr]    --> src/bin/05-vetveni_bez_zbytecnych_alokaci.rs:102:5
Nov 30 04:03:50.865 INFO [stderr]     |
Nov 30 04:03:50.865 INFO [stderr] 102 |     stdout.flush();
Nov 30 04:03:50.865 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Nov 30 04:03:50.865 INFO [stderr]     |
Nov 30 04:03:50.865 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 30 04:03:50.865 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 04:03:50.865 INFO [stderr] 
Nov 30 04:03:51.105 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 04:03:51.105 INFO [stderr]    --> src/bin/05-vetveni_bez_zbytecnych_alokaci.rs:102:5
Nov 30 04:03:51.105 INFO [stderr]     |
Nov 30 04:03:51.105 INFO [stderr] 102 |     stdout.flush();
Nov 30 04:03:51.105 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Nov 30 04:03:51.132 INFO [stderr]     |
Nov 30 04:03:51.132 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 30 04:03:51.132 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 04:03:51.132 INFO [stderr] 
Nov 30 04:03:53.772 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 04:03:53.772 INFO [stderr]   --> src/bin/06-bez_parsovani_utf8.rs:78:5
Nov 30 04:03:53.772 INFO [stderr]    |
Nov 30 04:03:53.772 INFO [stderr] 78 |     stdout.flush();
Nov 30 04:03:53.772 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 30 04:03:53.772 INFO [stderr]    |
Nov 30 04:03:53.772 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 04:03:53.772 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 04:03:53.772 INFO [stderr] 
Nov 30 04:03:54.249 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 04:03:54.249 INFO [stderr]   --> src/bin/01-drobnosti.rs:28:5
Nov 30 04:03:54.249 INFO [stderr]    |
Nov 30 04:03:54.250 INFO [stderr] 28 |     stdout.flush();
Nov 30 04:03:54.250 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 30 04:03:54.250 INFO [stderr]    |
Nov 30 04:03:54.250 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 04:03:54.251 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 04:03:54.251 INFO [stderr] 
Nov 30 04:03:54.364 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 04:03:54.364 INFO [stderr]   --> src/bin/04-vetveni.rs:81:5
Nov 30 04:03:54.364 INFO [stderr]    |
Nov 30 04:03:54.364 INFO [stderr] 81 |     stdout.flush();
Nov 30 04:03:54.364 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 30 04:03:54.364 INFO [stderr]    |
Nov 30 04:03:54.365 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 04:03:54.365 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 04:03:54.365 INFO [stderr] 
Nov 30 04:03:54.429 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 04:03:54.429 INFO [stderr]   --> src/bin/04-vetveni.rs:81:5
Nov 30 04:03:54.429 INFO [stderr]    |
Nov 30 04:03:54.429 INFO [stderr] 81 |     stdout.flush();
Nov 30 04:03:54.429 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 30 04:03:54.429 INFO [stderr]    |
Nov 30 04:03:54.429 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 04:03:54.429 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 04:03:54.429 INFO [stderr] 
Nov 30 04:03:54.684 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 04:03:54.684 INFO [stderr]   --> src/bin/06-bez_parsovani_utf8.rs:78:5
Nov 30 04:03:54.684 INFO [stderr]    |
Nov 30 04:03:54.684 INFO [stderr] 78 |     stdout.flush();
Nov 30 04:03:54.684 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 30 04:03:54.684 INFO [stderr]    |
Nov 30 04:03:54.684 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 04:03:54.684 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 04:03:54.685 INFO [stderr] 
Nov 30 04:03:54.774 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 04:03:54.775 INFO [stderr]   --> src/bin/02-min_alokaci.rs:28:5
Nov 30 04:03:54.775 INFO [stderr]    |
Nov 30 04:03:54.775 INFO [stderr] 28 |     stdout.flush();
Nov 30 04:03:54.776 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 30 04:03:54.776 INFO [stderr]    |
Nov 30 04:03:54.776 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 04:03:54.776 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 04:03:54.777 INFO [stderr] 
Nov 30 04:03:54.841 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.72s
Nov 30 04:03:54.845 INFO [stderr] su: No module specific data is present
Nov 30 04:03:56.403 INFO running `"docker" "inspect" "4550c7fe1a68f004b356d5e8f79fe993acfc7525b3c8eaebd6660a1046bc22e2"`
Nov 30 04:03:56.816 INFO running `"docker" "rm" "-f" "4550c7fe1a68f004b356d5e8f79fe993acfc7525b3c8eaebd6660a1046bc22e2"`
Nov 30 04:03:57.104 INFO [stdout] 4550c7fe1a68f004b356d5e8f79fe993acfc7525b3c8eaebd6660a1046bc22e2