Dec 07 18:40:13.806 INFO testing discard-1.0.4 against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 07 18:40:13.806 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 07 18:40:14.044 INFO [stdout] cf715ec26946e9daed85bce8806a9ef14b21cee3058298624872ffaf7d35125c
Dec 07 18:40:14.047 INFO running `"docker" "start" "-a" "cf715ec26946e9daed85bce8806a9ef14b21cee3058298624872ffaf7d35125c"`
Dec 07 18:40:14.552 INFO [stderr] usermod: no changes
Dec 07 18:40:14.597 INFO [stderr]    Compiling discard v1.0.4 (/source)
Dec 07 18:40:15.301 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
Dec 07 18:40:15.303 INFO [stderr] su: No module specific data is present
Dec 07 18:40:15.652 INFO running `"docker" "inspect" "cf715ec26946e9daed85bce8806a9ef14b21cee3058298624872ffaf7d35125c"`
Dec 07 18:40:15.723 INFO running `"docker" "rm" "-f" "cf715ec26946e9daed85bce8806a9ef14b21cee3058298624872ffaf7d35125c"`
Dec 07 18:40:15.799 INFO [stdout] cf715ec26946e9daed85bce8806a9ef14b21cee3058298624872ffaf7d35125c
Dec 07 18:40:15.801 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 07 18:40:15.995 INFO [stdout] 6ec78c70b20a20afff3d921ea10971399e5726a99b737f18d51c987f21a5f1ab
Dec 07 18:40:15.996 INFO running `"docker" "start" "-a" "6ec78c70b20a20afff3d921ea10971399e5726a99b737f18d51c987f21a5f1ab"`
Dec 07 18:40:16.628 INFO [stderr] usermod: no changes
Dec 07 18:40:16.657 INFO [stderr]    Compiling discard v1.0.4 (/source)
Dec 07 18:40:17.294 INFO [stderr] warning: unused `DiscardOnDrop` that must be used
Dec 07 18:40:17.294 INFO [stderr]    --> src/lib.rs:261:9
Dec 07 18:40:17.294 INFO [stderr]     |
Dec 07 18:40:17.294 INFO [stderr] 261 |         DiscardOnDrop::new(Foo::new());
Dec 07 18:40:17.294 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 18:40:17.294 INFO [stderr]     |
Dec 07 18:40:17.294 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 07 18:40:17.294 INFO [stderr]     = note: 
Dec 07 18:40:17.294 INFO [stderr]             The DiscardOnDrop is unused, which causes it to be immediately discarded.
Dec 07 18:40:17.294 INFO [stderr]             You probably don't want that to happen.
Dec 07 18:40:17.294 INFO [stderr]             
Dec 07 18:40:17.294 INFO [stderr]             How to fix this:
Dec 07 18:40:17.294 INFO [stderr]             
Dec 07 18:40:17.294 INFO [stderr]               * Store the DiscardOnDrop in a variable or data structure.
Dec 07 18:40:17.294 INFO [stderr]             
Dec 07 18:40:17.294 INFO [stderr]               * Or use the DiscardOnDrop::leak function which will cause it to not be
Dec 07 18:40:17.294 INFO [stderr]                 discarded (this *will* leak memory!).
Dec 07 18:40:17.294 INFO [stderr]             
Dec 07 18:40:17.294 INFO [stderr]             See the DiscardOnDrop documentation for more details.
Dec 07 18:40:17.294 INFO [stderr] 
Dec 07 18:40:17.294 INFO [stderr] warning: unused `DiscardOnDrop` that must be used
Dec 07 18:40:17.294 INFO [stderr]    --> src/lib.rs:262:9
Dec 07 18:40:17.294 INFO [stderr]     |
Dec 07 18:40:17.294 INFO [stderr] 262 |         DiscardOnDrop::new(Foo::new());
Dec 07 18:40:17.294 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 18:40:17.294 INFO [stderr]     |
Dec 07 18:40:17.294 INFO [stderr]     = note: 
Dec 07 18:40:17.294 INFO [stderr]             The DiscardOnDrop is unused, which causes it to be immediately discarded.
Dec 07 18:40:17.294 INFO [stderr]             You probably don't want that to happen.
Dec 07 18:40:17.294 INFO [stderr]             
Dec 07 18:40:17.294 INFO [stderr]             How to fix this:
Dec 07 18:40:17.294 INFO [stderr]             
Dec 07 18:40:17.294 INFO [stderr]               * Store the DiscardOnDrop in a variable or data structure.
Dec 07 18:40:17.294 INFO [stderr]             
Dec 07 18:40:17.294 INFO [stderr]               * Or use the DiscardOnDrop::leak function which will cause it to not be
Dec 07 18:40:17.294 INFO [stderr]                 discarded (this *will* leak memory!).
Dec 07 18:40:17.294 INFO [stderr]             
Dec 07 18:40:17.294 INFO [stderr]             See the DiscardOnDrop documentation for more details.
Dec 07 18:40:17.294 INFO [stderr] 
Dec 07 18:40:17.591 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
Dec 07 18:40:17.593 INFO [stderr] su: No module specific data is present
Dec 07 18:40:17.910 INFO running `"docker" "inspect" "6ec78c70b20a20afff3d921ea10971399e5726a99b737f18d51c987f21a5f1ab"`
Dec 07 18:40:18.158 INFO running `"docker" "rm" "-f" "6ec78c70b20a20afff3d921ea10971399e5726a99b737f18d51c987f21a5f1ab"`
Dec 07 18:40:18.381 INFO [stdout] 6ec78c70b20a20afff3d921ea10971399e5726a99b737f18d51c987f21a5f1ab
Dec 07 18:40:18.392 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 07 18:40:18.864 INFO [stdout] d01aea95e7103989eca95469e305f78afa26bcd0a6420914477201ce0aa35494
Dec 07 18:40:18.867 INFO running `"docker" "start" "-a" "d01aea95e7103989eca95469e305f78afa26bcd0a6420914477201ce0aa35494"`
Dec 07 18:40:19.920 INFO [stderr] usermod: no changes
Dec 07 18:40:20.008 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
Dec 07 18:40:20.008 INFO [stderr]      Running /target/debug/deps/discard-a252b18944e62387
Dec 07 18:40:20.016 INFO [stdout] 
Dec 07 18:40:20.016 INFO [stdout] running 7 tests
Dec 07 18:40:20.016 INFO [stdout] test tests::discard_on_drop ... ok
Dec 07 18:40:20.016 INFO [stdout] test tests::discard ... ok
Dec 07 18:40:20.016 INFO [stdout] test tests::leak ... ok
Dec 07 18:40:20.016 INFO [stdout] test tests::no_discard ... ok
Dec 07 18:40:20.016 INFO [stdout] test tests::deref_mut ... ok
Dec 07 18:40:20.016 INFO [stdout] test tests::unused ... ok
Dec 07 18:40:20.016 INFO [stdout] test tests::unused_discard_on_drop ... ok
Dec 07 18:40:20.016 INFO [stdout] 
Dec 07 18:40:20.016 INFO [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 07 18:40:20.016 INFO [stdout] 
Dec 07 18:40:20.020 INFO [stderr]    Doc-tests discard
Dec 07 18:40:21.020 INFO [stdout] 
Dec 07 18:40:21.020 INFO [stdout] running 3 tests
Dec 07 18:40:21.020 INFO [stdout] test src/lib.rs -  (line 15) ... ignored
Dec 07 18:40:21.020 INFO [stdout] test src/lib.rs -  (line 30) ... ignored
Dec 07 18:40:21.020 INFO [stdout] test src/lib.rs -  (line 61) ... ignored
Dec 07 18:40:21.020 INFO [stdout] 
Dec 07 18:40:21.020 INFO [stdout] test result: ok. 0 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out
Dec 07 18:40:21.020 INFO [stdout] 
Dec 07 18:40:21.027 INFO [stderr] su: No module specific data is present
Dec 07 18:40:21.633 INFO running `"docker" "inspect" "d01aea95e7103989eca95469e305f78afa26bcd0a6420914477201ce0aa35494"`
Dec 07 18:40:22.053 INFO running `"docker" "rm" "-f" "d01aea95e7103989eca95469e305f78afa26bcd0a6420914477201ce0aa35494"`
Dec 07 18:40:22.488 INFO [stdout] d01aea95e7103989eca95469e305f78afa26bcd0a6420914477201ce0aa35494