Dec 12 10:07:58.232 INFO checking pfwd-0.1.1 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 10:07:58.232 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 12 10:07:58.438 INFO [stdout] 83b1ddffcd52fc3016751f198db2179adeba303ea260ed73e48d165f85feed9d
Dec 12 10:07:58.440 INFO running `"docker" "start" "-a" "83b1ddffcd52fc3016751f198db2179adeba303ea260ed73e48d165f85feed9d"`
Dec 12 10:07:58.936 INFO [stderr] usermod: no changes
Dec 12 10:07:59.012 INFO [stderr]     Checking pfwd v0.1.1 (/source)
Dec 12 10:07:59.622 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 10:07:59.622 INFO [stderr]   --> src/main.rs:36:21
Dec 12 10:07:59.622 INFO [stderr]    |
Dec 12 10:07:59.622 INFO [stderr] 36 |                     tx1.send(());
Dec 12 10:07:59.622 INFO [stderr]    |                     ^^^^^^^^^^^^^
Dec 12 10:07:59.622 INFO [stderr]    |
Dec 12 10:07:59.622 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 10:07:59.622 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 10:07:59.622 INFO [stderr] 
Dec 12 10:07:59.622 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 10:07:59.622 INFO [stderr]   --> src/main.rs:37:21
Dec 12 10:07:59.622 INFO [stderr]    |
Dec 12 10:07:59.622 INFO [stderr] 37 |                     incoming.shutdown(Shutdown::Read);
Dec 12 10:07:59.622 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 10:07:59.622 INFO [stderr]    |
Dec 12 10:07:59.622 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 10:07:59.622 INFO [stderr] 
Dec 12 10:07:59.622 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 10:07:59.622 INFO [stderr]   --> src/main.rs:38:21
Dec 12 10:07:59.622 INFO [stderr]    |
Dec 12 10:07:59.622 INFO [stderr] 38 |                     outgoing.shutdown(Shutdown::Write);
Dec 12 10:07:59.622 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 10:07:59.622 INFO [stderr]    |
Dec 12 10:07:59.622 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 10:07:59.622 INFO [stderr] 
Dec 12 10:07:59.622 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 10:07:59.622 INFO [stderr]   --> src/main.rs:54:21
Dec 12 10:07:59.622 INFO [stderr]    |
Dec 12 10:07:59.622 INFO [stderr] 54 |                     tx2.send(());
Dec 12 10:07:59.622 INFO [stderr]    |                     ^^^^^^^^^^^^^
Dec 12 10:07:59.622 INFO [stderr]    |
Dec 12 10:07:59.622 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 10:07:59.622 INFO [stderr] 
Dec 12 10:07:59.622 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 10:07:59.622 INFO [stderr]   --> src/main.rs:55:21
Dec 12 10:07:59.622 INFO [stderr]    |
Dec 12 10:07:59.622 INFO [stderr] 55 |                     outgoing2.shutdown(Shutdown::Read);
Dec 12 10:07:59.622 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 10:07:59.622 INFO [stderr]    |
Dec 12 10:07:59.622 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 10:07:59.622 INFO [stderr] 
Dec 12 10:07:59.622 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 10:07:59.622 INFO [stderr]   --> src/main.rs:56:21
Dec 12 10:07:59.622 INFO [stderr]    |
Dec 12 10:07:59.623 INFO [stderr] 56 |                     incoming2.shutdown(Shutdown::Write);
Dec 12 10:07:59.623 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 10:07:59.623 INFO [stderr]    |
Dec 12 10:07:59.623 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 10:07:59.623 INFO [stderr] 
Dec 12 10:07:59.698 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 10:07:59.698 INFO [stderr]   --> src/main.rs:36:21
Dec 12 10:07:59.698 INFO [stderr]    |
Dec 12 10:07:59.698 INFO [stderr] 36 |                     tx1.send(());
Dec 12 10:07:59.698 INFO [stderr]    |                     ^^^^^^^^^^^^^
Dec 12 10:07:59.698 INFO [stderr]    |
Dec 12 10:07:59.698 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 10:07:59.698 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 10:07:59.698 INFO [stderr] 
Dec 12 10:07:59.698 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 10:07:59.698 INFO [stderr]   --> src/main.rs:37:21
Dec 12 10:07:59.698 INFO [stderr]    |
Dec 12 10:07:59.698 INFO [stderr] 37 |                     incoming.shutdown(Shutdown::Read);
Dec 12 10:07:59.698 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 10:07:59.698 INFO [stderr]    |
Dec 12 10:07:59.698 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 10:07:59.698 INFO [stderr] 
Dec 12 10:07:59.698 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 10:07:59.698 INFO [stderr]   --> src/main.rs:38:21
Dec 12 10:07:59.698 INFO [stderr]    |
Dec 12 10:07:59.698 INFO [stderr] 38 |                     outgoing.shutdown(Shutdown::Write);
Dec 12 10:07:59.698 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 10:07:59.698 INFO [stderr]    |
Dec 12 10:07:59.698 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 10:07:59.699 INFO [stderr] 
Dec 12 10:07:59.699 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 10:07:59.699 INFO [stderr]   --> src/main.rs:54:21
Dec 12 10:07:59.699 INFO [stderr]    |
Dec 12 10:07:59.699 INFO [stderr] 54 |                     tx2.send(());
Dec 12 10:07:59.699 INFO [stderr]    |                     ^^^^^^^^^^^^^
Dec 12 10:07:59.699 INFO [stderr]    |
Dec 12 10:07:59.699 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 10:07:59.699 INFO [stderr] 
Dec 12 10:07:59.699 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 10:07:59.699 INFO [stderr]   --> src/main.rs:55:21
Dec 12 10:07:59.699 INFO [stderr]    |
Dec 12 10:07:59.699 INFO [stderr] 55 |                     outgoing2.shutdown(Shutdown::Read);
Dec 12 10:07:59.699 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 10:07:59.699 INFO [stderr]    |
Dec 12 10:07:59.699 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 10:07:59.699 INFO [stderr] 
Dec 12 10:07:59.699 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 10:07:59.699 INFO [stderr]   --> src/main.rs:56:21
Dec 12 10:07:59.699 INFO [stderr]    |
Dec 12 10:07:59.699 INFO [stderr] 56 |                     incoming2.shutdown(Shutdown::Write);
Dec 12 10:07:59.699 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 10:07:59.699 INFO [stderr]    |
Dec 12 10:07:59.699 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 10:07:59.699 INFO [stderr] 
Dec 12 10:07:59.707 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
Dec 12 10:07:59.712 INFO [stderr] su: No module specific data is present
Dec 12 10:07:59.914 INFO running `"docker" "inspect" "83b1ddffcd52fc3016751f198db2179adeba303ea260ed73e48d165f85feed9d"`
Dec 12 10:08:00.024 INFO running `"docker" "rm" "-f" "83b1ddffcd52fc3016751f198db2179adeba303ea260ed73e48d165f85feed9d"`
Dec 12 10:08:00.140 INFO [stdout] 83b1ddffcd52fc3016751f198db2179adeba303ea260ed73e48d165f85feed9d