Dec 15 16:54:57.469 INFO testing discard-1.0.4 against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 15 16:54:57.469 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-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 15 16:54:57.851 INFO [stdout] 8d2a9c1d21c62b906c470a2bd9331608002db6ad12f586f6c03e1a78e4084fc7
Dec 15 16:54:57.856 INFO running `"docker" "start" "-a" "8d2a9c1d21c62b906c470a2bd9331608002db6ad12f586f6c03e1a78e4084fc7"`
Dec 15 16:54:59.091 INFO [stderr] usermod: no changes
Dec 15 16:54:59.147 INFO [stderr]    Compiling discard v1.0.4 (/source)
Dec 15 16:54:59.829 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
Dec 15 16:54:59.830 INFO [stderr] su: No module specific data is present
Dec 15 16:55:00.555 INFO running `"docker" "inspect" "8d2a9c1d21c62b906c470a2bd9331608002db6ad12f586f6c03e1a78e4084fc7"`
Dec 15 16:55:00.869 INFO running `"docker" "rm" "-f" "8d2a9c1d21c62b906c470a2bd9331608002db6ad12f586f6c03e1a78e4084fc7"`
Dec 15 16:55:01.218 INFO [stdout] 8d2a9c1d21c62b906c470a2bd9331608002db6ad12f586f6c03e1a78e4084fc7
Dec 15 16:55:01.220 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen --no-run" "-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 15 16:55:01.599 INFO [stdout] fc940d18a0128dc3c82123ccc9b1cb21008a385edde521c29267a2daeb8920fb
Dec 15 16:55:01.601 INFO running `"docker" "start" "-a" "fc940d18a0128dc3c82123ccc9b1cb21008a385edde521c29267a2daeb8920fb"`
Dec 15 16:55:02.989 INFO [stderr] usermod: no changes
Dec 15 16:55:03.102 INFO [stderr]    Compiling discard v1.0.4 (/source)
Dec 15 16:55:04.007 INFO [stderr] warning: unused `DiscardOnDrop` that must be used
Dec 15 16:55:04.007 INFO [stderr]    --> src/lib.rs:261:9
Dec 15 16:55:04.007 INFO [stderr]     |
Dec 15 16:55:04.007 INFO [stderr] 261 |         DiscardOnDrop::new(Foo::new());
Dec 15 16:55:04.007 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 16:55:04.007 INFO [stderr]     |
Dec 15 16:55:04.007 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 15 16:55:04.007 INFO [stderr]     = note: 
Dec 15 16:55:04.007 INFO [stderr]             The DiscardOnDrop is unused, which causes it to be immediately discarded.
Dec 15 16:55:04.007 INFO [stderr]             You probably don't want that to happen.
Dec 15 16:55:04.007 INFO [stderr]             
Dec 15 16:55:04.007 INFO [stderr]             How to fix this:
Dec 15 16:55:04.007 INFO [stderr]             
Dec 15 16:55:04.007 INFO [stderr]               * Store the DiscardOnDrop in a variable or data structure.
Dec 15 16:55:04.007 INFO [stderr]             
Dec 15 16:55:04.007 INFO [stderr]               * Or use the DiscardOnDrop::leak function which will cause it to not be
Dec 15 16:55:04.007 INFO [stderr]                 discarded (this *will* leak memory!).
Dec 15 16:55:04.007 INFO [stderr]             
Dec 15 16:55:04.007 INFO [stderr]             See the DiscardOnDrop documentation for more details.
Dec 15 16:55:04.007 INFO [stderr] 
Dec 15 16:55:04.007 INFO [stderr] warning: unused `DiscardOnDrop` that must be used
Dec 15 16:55:04.007 INFO [stderr]    --> src/lib.rs:262:9
Dec 15 16:55:04.007 INFO [stderr]     |
Dec 15 16:55:04.007 INFO [stderr] 262 |         DiscardOnDrop::new(Foo::new());
Dec 15 16:55:04.007 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 16:55:04.007 INFO [stderr]     |
Dec 15 16:55:04.007 INFO [stderr]     = note: 
Dec 15 16:55:04.007 INFO [stderr]             The DiscardOnDrop is unused, which causes it to be immediately discarded.
Dec 15 16:55:04.007 INFO [stderr]             You probably don't want that to happen.
Dec 15 16:55:04.007 INFO [stderr]             
Dec 15 16:55:04.007 INFO [stderr]             How to fix this:
Dec 15 16:55:04.007 INFO [stderr]             
Dec 15 16:55:04.007 INFO [stderr]               * Store the DiscardOnDrop in a variable or data structure.
Dec 15 16:55:04.007 INFO [stderr]             
Dec 15 16:55:04.007 INFO [stderr]               * Or use the DiscardOnDrop::leak function which will cause it to not be
Dec 15 16:55:04.007 INFO [stderr]                 discarded (this *will* leak memory!).
Dec 15 16:55:04.007 INFO [stderr]             
Dec 15 16:55:04.007 INFO [stderr]             See the DiscardOnDrop documentation for more details.
Dec 15 16:55:04.007 INFO [stderr] 
Dec 15 16:55:04.533 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
Dec 15 16:55:04.534 INFO [stderr] su: No module specific data is present
Dec 15 16:55:05.133 INFO running `"docker" "inspect" "fc940d18a0128dc3c82123ccc9b1cb21008a385edde521c29267a2daeb8920fb"`
Dec 15 16:55:05.348 INFO running `"docker" "rm" "-f" "fc940d18a0128dc3c82123ccc9b1cb21008a385edde521c29267a2daeb8920fb"`
Dec 15 16:55:05.587 INFO [stdout] fc940d18a0128dc3c82123ccc9b1cb21008a385edde521c29267a2daeb8920fb
Dec 15 16:55:05.589 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen" "-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 15 16:55:05.956 INFO [stdout] 54d11ee9c1b171ee13366982c7af7e6fd7338bbc4bd4c3a37e1ed479dd3ee581
Dec 15 16:55:05.959 INFO running `"docker" "start" "-a" "54d11ee9c1b171ee13366982c7af7e6fd7338bbc4bd4c3a37e1ed479dd3ee581"`
Dec 15 16:55:07.235 INFO [stderr] usermod: no changes
Dec 15 16:55:07.335 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
Dec 15 16:55:07.343 INFO [stdout] 
Dec 15 16:55:07.343 INFO [stdout] running 7 tests
Dec 15 16:55:07.343 INFO [stderr]      Running /target/debug/deps/discard-506a35a92ac91393
Dec 15 16:55:07.351 INFO [stdout] test tests::deref_mut ... ok
Dec 15 16:55:07.351 INFO [stdout] test tests::unused ... ok
Dec 15 16:55:07.351 INFO [stdout] test tests::unused_discard_on_drop ... ok
Dec 15 16:55:07.351 INFO [stdout] test tests::discard_on_drop ... ok
Dec 15 16:55:07.351 INFO [stdout] test tests::discard ... ok
Dec 15 16:55:07.351 INFO [stdout] test tests::no_discard ... ok
Dec 15 16:55:07.351 INFO [stdout] test tests::leak ... ok
Dec 15 16:55:07.351 INFO [stdout] 
Dec 15 16:55:07.351 INFO [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 16:55:07.351 INFO [stdout] 
Dec 15 16:55:07.351 INFO [stderr]    Doc-tests discard
Dec 15 16:55:08.426 INFO [stdout] 
Dec 15 16:55:08.426 INFO [stdout] running 3 tests
Dec 15 16:55:08.426 INFO [stdout] test src/lib.rs -  (line 15) ... ignored
Dec 15 16:55:08.426 INFO [stdout] test src/lib.rs -  (line 30) ... ignored
Dec 15 16:55:08.426 INFO [stdout] test src/lib.rs -  (line 61) ... ignored
Dec 15 16:55:08.426 INFO [stdout] 
Dec 15 16:55:08.426 INFO [stdout] test result: ok. 0 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out
Dec 15 16:55:08.426 INFO [stdout] 
Dec 15 16:55:08.435 INFO [stderr] su: No module specific data is present
Dec 15 16:55:09.356 INFO running `"docker" "inspect" "54d11ee9c1b171ee13366982c7af7e6fd7338bbc4bd4c3a37e1ed479dd3ee581"`
Dec 15 16:55:09.695 INFO running `"docker" "rm" "-f" "54d11ee9c1b171ee13366982c7af7e6fd7338bbc4bd4c3a37e1ed479dd3ee581"`
Dec 15 16:55:09.978 INFO [stdout] 54d11ee9c1b171ee13366982c7af7e6fd7338bbc4bd4c3a37e1ed479dd3ee581