Dec 03 14:00:09.895 INFO testing discard-1.0.4 against 1.30.1 for beta-1.31-5
Dec 03 14:00:09.895 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-5/1.30.1:/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 +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 03 14:00:10.269 INFO [stdout] f0cbf3cc972fd4efcaec8d3a7275b8611a410d4a078a082c7eb8ac8d6fd14553
Dec 03 14:00:10.275 INFO running `"docker" "start" "-a" "f0cbf3cc972fd4efcaec8d3a7275b8611a410d4a078a082c7eb8ac8d6fd14553"`
Dec 03 14:00:11.734 INFO [stderr] usermod: no changes
Dec 03 14:00:11.779 INFO [stderr]    Compiling discard v1.0.4 (/source)
Dec 03 14:00:12.519 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
Dec 03 14:00:12.519 INFO [stderr] su: No module specific data is present
Dec 03 14:00:13.051 INFO running `"docker" "inspect" "f0cbf3cc972fd4efcaec8d3a7275b8611a410d4a078a082c7eb8ac8d6fd14553"`
Dec 03 14:00:13.275 INFO running `"docker" "rm" "-f" "f0cbf3cc972fd4efcaec8d3a7275b8611a410d4a078a082c7eb8ac8d6fd14553"`
Dec 03 14:00:13.572 INFO [stdout] f0cbf3cc972fd4efcaec8d3a7275b8611a410d4a078a082c7eb8ac8d6fd14553
Dec 03 14:00:13.574 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 03 14:00:14.131 INFO [stdout] f59298af9fd9b35ba7cdbb884e59f6a0832c45368c02382dd12caa9e1076b083
Dec 03 14:00:14.137 INFO running `"docker" "start" "-a" "f59298af9fd9b35ba7cdbb884e59f6a0832c45368c02382dd12caa9e1076b083"`
Dec 03 14:00:15.695 INFO [stderr] usermod: no changes
Dec 03 14:00:15.747 INFO [stderr]    Compiling discard v1.0.4 (/source)
Dec 03 14:00:16.794 INFO [stderr] warning: unused `DiscardOnDrop` which must be used
Dec 03 14:00:16.795 INFO [stderr]    --> src/lib.rs:261:9
Dec 03 14:00:16.795 INFO [stderr]     |
Dec 03 14:00:16.795 INFO [stderr] 261 |         DiscardOnDrop::new(Foo::new());
Dec 03 14:00:16.795 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 14:00:16.795 INFO [stderr]     |
Dec 03 14:00:16.795 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 03 14:00:16.795 INFO [stderr]     = note: 
Dec 03 14:00:16.795 INFO [stderr]             The DiscardOnDrop is unused, which causes it to be immediately discarded.
Dec 03 14:00:16.795 INFO [stderr]             You probably don't want that to happen.
Dec 03 14:00:16.795 INFO [stderr]             
Dec 03 14:00:16.795 INFO [stderr]             How to fix this:
Dec 03 14:00:16.795 INFO [stderr]             
Dec 03 14:00:16.795 INFO [stderr]               * Store the DiscardOnDrop in a variable or data structure.
Dec 03 14:00:16.795 INFO [stderr]             
Dec 03 14:00:16.795 INFO [stderr]               * Or use the DiscardOnDrop::leak function which will cause it to not be
Dec 03 14:00:16.795 INFO [stderr]                 discarded (this *will* leak memory!).
Dec 03 14:00:16.795 INFO [stderr]             
Dec 03 14:00:16.795 INFO [stderr]             See the DiscardOnDrop documentation for more details.
Dec 03 14:00:16.795 INFO [stderr] 
Dec 03 14:00:16.795 INFO [stderr] warning: unused `DiscardOnDrop` which must be used
Dec 03 14:00:16.795 INFO [stderr]    --> src/lib.rs:262:9
Dec 03 14:00:16.795 INFO [stderr]     |
Dec 03 14:00:16.795 INFO [stderr] 262 |         DiscardOnDrop::new(Foo::new());
Dec 03 14:00:16.795 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 14:00:16.795 INFO [stderr]     |
Dec 03 14:00:16.795 INFO [stderr]     = note: 
Dec 03 14:00:16.795 INFO [stderr]             The DiscardOnDrop is unused, which causes it to be immediately discarded.
Dec 03 14:00:16.795 INFO [stderr]             You probably don't want that to happen.
Dec 03 14:00:16.795 INFO [stderr]             
Dec 03 14:00:16.795 INFO [stderr]             How to fix this:
Dec 03 14:00:16.795 INFO [stderr]             
Dec 03 14:00:16.795 INFO [stderr]               * Store the DiscardOnDrop in a variable or data structure.
Dec 03 14:00:16.795 INFO [stderr]             
Dec 03 14:00:16.795 INFO [stderr]               * Or use the DiscardOnDrop::leak function which will cause it to not be
Dec 03 14:00:16.795 INFO [stderr]                 discarded (this *will* leak memory!).
Dec 03 14:00:16.795 INFO [stderr]             
Dec 03 14:00:16.795 INFO [stderr]             See the DiscardOnDrop documentation for more details.
Dec 03 14:00:16.795 INFO [stderr] 
Dec 03 14:00:17.373 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.64s
Dec 03 14:00:17.379 INFO [stderr] su: No module specific data is present
Dec 03 14:00:17.956 INFO running `"docker" "inspect" "f59298af9fd9b35ba7cdbb884e59f6a0832c45368c02382dd12caa9e1076b083"`
Dec 03 14:00:18.206 INFO running `"docker" "rm" "-f" "f59298af9fd9b35ba7cdbb884e59f6a0832c45368c02382dd12caa9e1076b083"`
Dec 03 14:00:18.465 INFO [stdout] f59298af9fd9b35ba7cdbb884e59f6a0832c45368c02382dd12caa9e1076b083
Dec 03 14:00:18.467 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 03 14:00:18.895 INFO [stdout] 6171cca0348d366f774877363ae04c7748d3d6883350c8e6fe2fc5ae6777813e
Dec 03 14:00:18.903 INFO running `"docker" "start" "-a" "6171cca0348d366f774877363ae04c7748d3d6883350c8e6fe2fc5ae6777813e"`
Dec 03 14:00:20.290 INFO [stderr] usermod: no changes
Dec 03 14:00:20.349 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 03 14:00:20.357 INFO [stderr]      Running /target/debug/deps/discard-8acc0afb775c832c
Dec 03 14:00:20.375 INFO [stdout] 
Dec 03 14:00:20.375 INFO [stdout] running 7 tests
Dec 03 14:00:20.375 INFO [stdout] test tests::deref_mut ... ok
Dec 03 14:00:20.375 INFO [stdout] test tests::discard_on_drop ... ok
Dec 03 14:00:20.375 INFO [stdout] test tests::leak ... ok
Dec 03 14:00:20.375 INFO [stdout] test tests::discard ... ok
Dec 03 14:00:20.375 INFO [stdout] test tests::unused ... ok
Dec 03 14:00:20.375 INFO [stdout] test tests::no_discard ... ok
Dec 03 14:00:20.375 INFO [stdout] test tests::unused_discard_on_drop ... ok
Dec 03 14:00:20.375 INFO [stdout] 
Dec 03 14:00:20.375 INFO [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 03 14:00:20.375 INFO [stdout] 
Dec 03 14:00:20.375 INFO [stderr]    Doc-tests discard
Dec 03 14:00:21.682 INFO [stdout] 
Dec 03 14:00:21.683 INFO [stderr] su: No module specific data is present
Dec 03 14:00:21.683 INFO [stdout] running 3 tests
Dec 03 14:00:21.683 INFO [stdout] test src/lib.rs -  (line 15) ... ignored
Dec 03 14:00:21.683 INFO [stdout] test src/lib.rs -  (line 30) ... ignored
Dec 03 14:00:21.683 INFO [stdout] test src/lib.rs -  (line 61) ... ignored
Dec 03 14:00:21.683 INFO [stdout] 
Dec 03 14:00:21.683 INFO [stdout] test result: ok. 0 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out
Dec 03 14:00:21.683 INFO [stdout] 
Dec 03 14:00:22.307 INFO running `"docker" "inspect" "6171cca0348d366f774877363ae04c7748d3d6883350c8e6fe2fc5ae6777813e"`
Dec 03 14:00:22.569 INFO running `"docker" "rm" "-f" "6171cca0348d366f774877363ae04c7748d3d6883350c8e6fe2fc5ae6777813e"`
Dec 03 14:00:22.834 INFO [stdout] 6171cca0348d366f774877363ae04c7748d3d6883350c8e6fe2fc5ae6777813e
