Dec 04 10:02:05.733 INFO checking sivakon/rust-exp against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 10:02:05.733 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 10:02:06.178 INFO [stdout] 63281fdc7f4de530b569a5b7d39ba42aaedaaf751f6ab78e81ffc0008efc3b92
Dec 04 10:02:06.185 INFO running `"docker" "start" "-a" "63281fdc7f4de530b569a5b7d39ba42aaedaaf751f6ab78e81ffc0008efc3b92"`
Dec 04 10:02:07.503 INFO [stderr] usermod: no changes
Dec 04 10:02:07.583 INFO [stderr]     Checking rustlvl2 v0.1.0 (/source)
Dec 04 10:02:07.755 INFO [stderr] warning: lint `unused_doc_comment` has been renamed to `unused_doc_comments`
Dec 04 10:02:07.755 INFO [stderr]   --> src/main.rs:53:9
Dec 04 10:02:07.755 INFO [stderr]    |
Dec 04 10:02:07.755 INFO [stderr] 53 | #[allow(unused_doc_comment)]
Dec 04 10:02:07.755 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^ help: use the new name: `unused_doc_comments`
Dec 04 10:02:07.755 INFO [stderr]    |
Dec 04 10:02:07.755 INFO [stderr]    = note: #[warn(renamed_and_removed_lints)] on by default
Dec 04 10:02:07.755 INFO [stderr] 
Dec 04 10:02:07.771 INFO [stderr] warning: lint `unused_doc_comment` has been renamed to `unused_doc_comments`
Dec 04 10:02:07.771 INFO [stderr]   --> src/main.rs:53:9
Dec 04 10:02:07.771 INFO [stderr]    |
Dec 04 10:02:07.771 INFO [stderr] 53 | #[allow(unused_doc_comment)]
Dec 04 10:02:07.771 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^ help: use the new name: `unused_doc_comments`
Dec 04 10:02:07.771 INFO [stderr]    |
Dec 04 10:02:07.771 INFO [stderr]    = note: #[warn(renamed_and_removed_lints)] on by default
Dec 04 10:02:07.771 INFO [stderr] 
Dec 04 10:02:07.899 INFO [stderr] warning: doc comment not used by rustdoc
Dec 04 10:02:07.899 INFO [stderr]    --> src/main.rs:97:5
Dec 04 10:02:07.899 INFO [stderr]     |
Dec 04 10:02:07.899 INFO [stderr] 97  | /     /**
Dec 04 10:02:07.899 INFO [stderr] 98  | |      * this is an unused documentation step
Dec 04 10:02:07.899 INFO [stderr] 99  | |      * HASHMAP
Dec 04 10:02:07.899 INFO [stderr] 100 | |      */
Dec 04 10:02:07.899 INFO [stderr]     | |_______^
Dec 04 10:02:07.899 INFO [stderr]     |
Dec 04 10:02:07.899 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Dec 04 10:02:07.899 INFO [stderr] 
Dec 04 10:02:07.899 INFO [stderr] warning: doc comment not used by rustdoc
Dec 04 10:02:07.899 INFO [stderr]    --> src/main.rs:148:5
Dec 04 10:02:07.899 INFO [stderr]     |
Dec 04 10:02:07.899 INFO [stderr] 148 | /     /**
Dec 04 10:02:07.899 INFO [stderr] 149 | |      * Some exercises
Dec 04 10:02:07.899 INFO [stderr] 150 | |      */
Dec 04 10:02:07.899 INFO [stderr]     | |_______^
Dec 04 10:02:07.899 INFO [stderr] 
Dec 04 10:02:08.067 INFO [stderr] warning: doc comment not used by rustdoc
Dec 04 10:02:08.067 INFO [stderr]    --> src/main.rs:97:5
Dec 04 10:02:08.067 INFO [stderr]     |
Dec 04 10:02:08.067 INFO [stderr] 97  | /     /**
Dec 04 10:02:08.067 INFO [stderr] 98  | |      * this is an unused documentation step
Dec 04 10:02:08.067 INFO [stderr] 99  | |      * HASHMAP
Dec 04 10:02:08.067 INFO [stderr] 100 | |      */
Dec 04 10:02:08.067 INFO [stderr]     | |_______^
Dec 04 10:02:08.067 INFO [stderr]     |
Dec 04 10:02:08.067 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Dec 04 10:02:08.067 INFO [stderr] 
Dec 04 10:02:08.071 INFO [stderr] warning: doc comment not used by rustdoc
Dec 04 10:02:08.071 INFO [stderr]    --> src/main.rs:148:5
Dec 04 10:02:08.071 INFO [stderr]     |
Dec 04 10:02:08.071 INFO [stderr] 148 | /     /**
Dec 04 10:02:08.071 INFO [stderr] 149 | |      * Some exercises
Dec 04 10:02:08.071 INFO [stderr] 150 | |      */
Dec 04 10:02:08.071 INFO [stderr]     | |_______^
Dec 04 10:02:08.071 INFO [stderr] 
Dec 04 10:02:08.343 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
Dec 04 10:02:08.343 INFO [stderr] su: No module specific data is present
Dec 04 10:02:09.275 INFO running `"docker" "inspect" "63281fdc7f4de530b569a5b7d39ba42aaedaaf751f6ab78e81ffc0008efc3b92"`
Dec 04 10:02:09.583 INFO running `"docker" "rm" "-f" "63281fdc7f4de530b569a5b7d39ba42aaedaaf751f6ab78e81ffc0008efc3b92"`
Dec 04 10:02:09.871 INFO [stdout] 63281fdc7f4de530b569a5b7d39ba42aaedaaf751f6ab78e81ffc0008efc3b92