Dec 15 16:55:00.556 INFO testing discard-1.0.4 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 15 16:55:00.556 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 16:55:00.967 INFO [stdout] 5453ab8109bc630335509ac307c4fb15950a1f0180f4feb1700186e9c44f7b72
Dec 15 16:55:00.969 INFO running `"docker" "start" "-a" "5453ab8109bc630335509ac307c4fb15950a1f0180f4feb1700186e9c44f7b72"`
Dec 15 16:55:02.146 INFO [stderr] usermod: no changes
Dec 15 16:55:02.214 INFO [stderr]    Compiling discard v1.0.4 (/source)
Dec 15 16:55:02.990 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
Dec 15 16:55:02.990 INFO [stderr] su: No module specific data is present
Dec 15 16:55:03.883 INFO running `"docker" "inspect" "5453ab8109bc630335509ac307c4fb15950a1f0180f4feb1700186e9c44f7b72"`
Dec 15 16:55:04.192 INFO running `"docker" "rm" "-f" "5453ab8109bc630335509ac307c4fb15950a1f0180f4feb1700186e9c44f7b72"`
Dec 15 16:55:04.551 INFO [stdout] 5453ab8109bc630335509ac307c4fb15950a1f0180f4feb1700186e9c44f7b72
Dec 15 16:55:04.559 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 16:55:04.969 INFO [stdout] 02b0fa2e889e1a69f90346e44a2553ed50668902b54f99ba3b182ffb1f2b6cab
Dec 15 16:55:04.971 INFO running `"docker" "start" "-a" "02b0fa2e889e1a69f90346e44a2553ed50668902b54f99ba3b182ffb1f2b6cab"`
Dec 15 16:55:06.590 INFO [stderr] usermod: no changes
Dec 15 16:55:06.655 INFO [stderr]    Compiling discard v1.0.4 (/source)
Dec 15 16:55:07.494 INFO [stderr] warning: unused `DiscardOnDrop` that must be used
Dec 15 16:55:07.494 INFO [stderr]    --> src/lib.rs:261:9
Dec 15 16:55:07.494 INFO [stderr]     |
Dec 15 16:55:07.494 INFO [stderr] 261 |         DiscardOnDrop::new(Foo::new());
Dec 15 16:55:07.494 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 16:55:07.494 INFO [stderr]     |
Dec 15 16:55:07.494 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 15 16:55:07.494 INFO [stderr]     = note: 
Dec 15 16:55:07.494 INFO [stderr]             The DiscardOnDrop is unused, which causes it to be immediately discarded.
Dec 15 16:55:07.494 INFO [stderr]             You probably don't want that to happen.
Dec 15 16:55:07.494 INFO [stderr]             
Dec 15 16:55:07.494 INFO [stderr]             How to fix this:
Dec 15 16:55:07.494 INFO [stderr]             
Dec 15 16:55:07.494 INFO [stderr]               * Store the DiscardOnDrop in a variable or data structure.
Dec 15 16:55:07.494 INFO [stderr]             
Dec 15 16:55:07.494 INFO [stderr]               * Or use the DiscardOnDrop::leak function which will cause it to not be
Dec 15 16:55:07.494 INFO [stderr]                 discarded (this *will* leak memory!).
Dec 15 16:55:07.494 INFO [stderr]             
Dec 15 16:55:07.494 INFO [stderr]             See the DiscardOnDrop documentation for more details.
Dec 15 16:55:07.494 INFO [stderr] 
Dec 15 16:55:07.494 INFO [stderr] warning: unused `DiscardOnDrop` that must be used
Dec 15 16:55:07.494 INFO [stderr]    --> src/lib.rs:262:9
Dec 15 16:55:07.494 INFO [stderr]     |
Dec 15 16:55:07.494 INFO [stderr] 262 |         DiscardOnDrop::new(Foo::new());
Dec 15 16:55:07.494 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 16:55:07.494 INFO [stderr]     |
Dec 15 16:55:07.494 INFO [stderr]     = note: 
Dec 15 16:55:07.494 INFO [stderr]             The DiscardOnDrop is unused, which causes it to be immediately discarded.
Dec 15 16:55:07.494 INFO [stderr]             You probably don't want that to happen.
Dec 15 16:55:07.494 INFO [stderr]             
Dec 15 16:55:07.494 INFO [stderr]             How to fix this:
Dec 15 16:55:07.494 INFO [stderr]             
Dec 15 16:55:07.494 INFO [stderr]               * Store the DiscardOnDrop in a variable or data structure.
Dec 15 16:55:07.494 INFO [stderr]             
Dec 15 16:55:07.494 INFO [stderr]               * Or use the DiscardOnDrop::leak function which will cause it to not be
Dec 15 16:55:07.494 INFO [stderr]                 discarded (this *will* leak memory!).
Dec 15 16:55:07.494 INFO [stderr]             
Dec 15 16:55:07.494 INFO [stderr]             See the DiscardOnDrop documentation for more details.
Dec 15 16:55:07.494 INFO [stderr] 
Dec 15 16:55:08.165 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
Dec 15 16:55:08.165 INFO [stderr] su: No module specific data is present
Dec 15 16:55:08.796 INFO running `"docker" "inspect" "02b0fa2e889e1a69f90346e44a2553ed50668902b54f99ba3b182ffb1f2b6cab"`
Dec 15 16:55:09.095 INFO running `"docker" "rm" "-f" "02b0fa2e889e1a69f90346e44a2553ed50668902b54f99ba3b182ffb1f2b6cab"`
Dec 15 16:55:09.373 INFO [stdout] 02b0fa2e889e1a69f90346e44a2553ed50668902b54f99ba3b182ffb1f2b6cab
Dec 15 16:55:09.377 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 16:55:09.891 INFO [stdout] 5df9748ad1bfe1250bf7a71094f71ecf0a3218f76b8cc7eba82a06e05684aa41
Dec 15 16:55:09.895 INFO running `"docker" "start" "-a" "5df9748ad1bfe1250bf7a71094f71ecf0a3218f76b8cc7eba82a06e05684aa41"`
Dec 15 16:55:11.346 INFO [stderr] usermod: no changes
Dec 15 16:55:11.427 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 15 16:55:11.427 INFO [stderr]      Running /target/debug/deps/discard-d2019a7ad07d91f1
Dec 15 16:55:11.435 INFO [stdout] 
Dec 15 16:55:11.435 INFO [stdout] running 7 tests
Dec 15 16:55:11.435 INFO [stdout] test tests::discard ... ok
Dec 15 16:55:11.439 INFO [stdout] test tests::no_discard ... ok
Dec 15 16:55:11.439 INFO [stderr]    Doc-tests discard
Dec 15 16:55:11.439 INFO [stdout] test tests::discard_on_drop ... ok
Dec 15 16:55:11.439 INFO [stdout] test tests::leak ... ok
Dec 15 16:55:11.439 INFO [stdout] test tests::unused ... ok
Dec 15 16:55:11.439 INFO [stdout] test tests::unused_discard_on_drop ... ok
Dec 15 16:55:11.439 INFO [stdout] test tests::deref_mut ... ok
Dec 15 16:55:11.439 INFO [stdout] 
Dec 15 16:55:11.439 INFO [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 16:55:11.439 INFO [stdout] 
Dec 15 16:55:12.675 INFO [stdout] 
Dec 15 16:55:12.675 INFO [stderr] su: No module specific data is present
Dec 15 16:55:12.675 INFO [stdout] running 3 tests
Dec 15 16:55:12.675 INFO [stdout] test src/lib.rs -  (line 15) ... ignored
Dec 15 16:55:12.675 INFO [stdout] test src/lib.rs -  (line 30) ... ignored
Dec 15 16:55:12.675 INFO [stdout] test src/lib.rs -  (line 61) ... ignored
Dec 15 16:55:12.675 INFO [stdout] 
Dec 15 16:55:12.675 INFO [stdout] test result: ok. 0 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out
Dec 15 16:55:12.675 INFO [stdout] 
Dec 15 16:55:13.563 INFO running `"docker" "inspect" "5df9748ad1bfe1250bf7a71094f71ecf0a3218f76b8cc7eba82a06e05684aa41"`
Dec 15 16:55:13.885 INFO running `"docker" "rm" "-f" "5df9748ad1bfe1250bf7a71094f71ecf0a3218f76b8cc7eba82a06e05684aa41"`
Dec 15 16:55:14.126 INFO [stdout] 5df9748ad1bfe1250bf7a71094f71ecf0a3218f76b8cc7eba82a06e05684aa41