Dec 07 06:55:06.370 INFO testing mpack-0.1.2 against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 07 06:55:06.370 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 06:55:06.757 INFO [stdout] 5ed5069e261f6d91ac79736a9b51f54ef1444ec0ca7d85948818d0b3deb68e7a
Dec 07 06:55:06.762 INFO running `"docker" "start" "-a" "5ed5069e261f6d91ac79736a9b51f54ef1444ec0ca7d85948818d0b3deb68e7a"`
Dec 07 06:55:08.375 INFO [stderr] usermod: no changes
Dec 07 06:55:08.460 INFO [stderr]    Compiling mpack v0.1.2 (/source)
Dec 07 06:55:08.836 INFO [stderr] warning: unused macro definition
Dec 07 06:55:08.837 INFO [stderr]   --> src/lib.rs:38:1
Dec 07 06:55:08.837 INFO [stderr]    |
Dec 07 06:55:08.837 INFO [stderr] 38 | / macro_rules! nth_byte(
Dec 07 06:55:08.838 INFO [stderr] 39 | |     ($x:expr, $n:expr) => ((($x >> ($n * 8)) & 0xFF) as u8)
Dec 07 06:55:08.838 INFO [stderr] 40 | | );
Dec 07 06:55:08.838 INFO [stderr]    | |__^
Dec 07 06:55:08.838 INFO [stderr]    |
Dec 07 06:55:08.839 INFO [stderr]    = note: #[warn(unused_macros)] on by default
Dec 07 06:55:08.839 INFO [stderr] 
Dec 07 06:55:09.812 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
Dec 07 06:55:09.812 INFO [stderr] su: No module specific data is present
Dec 07 06:55:10.595 INFO running `"docker" "inspect" "5ed5069e261f6d91ac79736a9b51f54ef1444ec0ca7d85948818d0b3deb68e7a"`
Dec 07 06:55:11.076 INFO running `"docker" "rm" "-f" "5ed5069e261f6d91ac79736a9b51f54ef1444ec0ca7d85948818d0b3deb68e7a"`
Dec 07 06:55:11.323 INFO [stdout] 5ed5069e261f6d91ac79736a9b51f54ef1444ec0ca7d85948818d0b3deb68e7a
Dec 07 06:55:11.326 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 06:55:11.706 INFO [stdout] ce053921a53c28f58e58b1197069360b7a59fda0cb9edbf5cb9611a746f68513
Dec 07 06:55:11.716 INFO running `"docker" "start" "-a" "ce053921a53c28f58e58b1197069360b7a59fda0cb9edbf5cb9611a746f68513"`
Dec 07 06:55:12.879 INFO [stderr] usermod: no changes
Dec 07 06:55:12.964 INFO [stderr]    Compiling mpack v0.1.2 (/source)
Dec 07 06:55:13.511 INFO [stderr] warning: unused macro definition
Dec 07 06:55:13.511 INFO [stderr]   --> src/lib.rs:38:1
Dec 07 06:55:13.511 INFO [stderr]    |
Dec 07 06:55:13.511 INFO [stderr] 38 | / macro_rules! nth_byte(
Dec 07 06:55:13.511 INFO [stderr] 39 | |     ($x:expr, $n:expr) => ((($x >> ($n * 8)) & 0xFF) as u8)
Dec 07 06:55:13.511 INFO [stderr] 40 | | );
Dec 07 06:55:13.511 INFO [stderr]    | |__^
Dec 07 06:55:13.511 INFO [stderr]    |
Dec 07 06:55:13.511 INFO [stderr]    = note: #[warn(unused_macros)] on by default
Dec 07 06:55:13.511 INFO [stderr] 
Dec 07 06:55:13.511 INFO [stderr] warning: unused import: `std::mem`
Dec 07 06:55:13.511 INFO [stderr]    --> src/lib.rs:717:9
Dec 07 06:55:13.511 INFO [stderr]     |
Dec 07 06:55:13.511 INFO [stderr] 717 |     use std::mem;
Dec 07 06:55:13.511 INFO [stderr]     |         ^^^^^^^^
Dec 07 06:55:13.511 INFO [stderr]     |
Dec 07 06:55:13.511 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 07 06:55:13.511 INFO [stderr] 
Dec 07 06:55:13.511 INFO [stderr] warning: unused import: `std::slice`
Dec 07 06:55:13.511 INFO [stderr]    --> src/lib.rs:718:9
Dec 07 06:55:13.511 INFO [stderr]     |
Dec 07 06:55:13.511 INFO [stderr] 718 |     use std::slice;
Dec 07 06:55:13.511 INFO [stderr]     |         ^^^^^^^^^^
Dec 07 06:55:13.511 INFO [stderr] 
Dec 07 06:55:14.106 INFO [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
Dec 07 06:55:14.106 INFO [stderr]    --> src/lib.rs:820:9
Dec 07 06:55:14.106 INFO [stderr]     |
Dec 07 06:55:14.106 INFO [stderr] 820 |         assert_eq!(x.b, 42);
Dec 07 06:55:14.106 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^
Dec 07 06:55:14.106 INFO [stderr]     |
Dec 07 06:55:14.106 INFO [stderr]     = note: #[warn(safe_packed_borrows)] on by default
Dec 07 06:55:14.106 INFO [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 07 06:55:14.106 INFO [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
Dec 07 06:55:14.106 INFO [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
Dec 07 06:55:14.106 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 07 06:55:14.106 INFO [stderr] 
Dec 07 06:55:17.733 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.82s
Dec 07 06:55:17.736 INFO [stderr] su: No module specific data is present
Dec 07 06:55:18.536 INFO running `"docker" "inspect" "ce053921a53c28f58e58b1197069360b7a59fda0cb9edbf5cb9611a746f68513"`
Dec 07 06:55:18.836 INFO running `"docker" "rm" "-f" "ce053921a53c28f58e58b1197069360b7a59fda0cb9edbf5cb9611a746f68513"`
Dec 07 06:55:19.204 INFO [stdout] ce053921a53c28f58e58b1197069360b7a59fda0cb9edbf5cb9611a746f68513