Dec 15 04:20:14.873 INFO testing mpack-0.1.2 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 15 04:20:14.873 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 04:20:15.098 INFO [stdout] f51a51465d53dda7d20f10e50f39c541b3b73ed3df51f9e228ac71a1645775ab
Dec 15 04:20:15.103 INFO running `"docker" "start" "-a" "f51a51465d53dda7d20f10e50f39c541b3b73ed3df51f9e228ac71a1645775ab"`
Dec 15 04:20:16.083 INFO [stderr] usermod: no changes
Dec 15 04:20:16.175 INFO [stderr]    Compiling mpack v0.1.2 (/source)
Dec 15 04:20:16.843 INFO [stderr] warning: unused macro definition
Dec 15 04:20:16.843 INFO [stderr]   --> src/lib.rs:38:1
Dec 15 04:20:16.843 INFO [stderr]    |
Dec 15 04:20:16.843 INFO [stderr] 38 | / macro_rules! nth_byte(
Dec 15 04:20:16.843 INFO [stderr] 39 | |     ($x:expr, $n:expr) => ((($x >> ($n * 8)) & 0xFF) as u8)
Dec 15 04:20:16.843 INFO [stderr] 40 | | );
Dec 15 04:20:16.843 INFO [stderr]    | |__^
Dec 15 04:20:16.843 INFO [stderr]    |
Dec 15 04:20:16.843 INFO [stderr]    = note: #[warn(unused_macros)] on by default
Dec 15 04:20:16.843 INFO [stderr] 
Dec 15 04:20:17.743 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.62s
Dec 15 04:20:17.747 INFO [stderr] su: No module specific data is present
Dec 15 04:20:18.113 INFO running `"docker" "inspect" "f51a51465d53dda7d20f10e50f39c541b3b73ed3df51f9e228ac71a1645775ab"`
Dec 15 04:20:18.245 INFO running `"docker" "rm" "-f" "f51a51465d53dda7d20f10e50f39c541b3b73ed3df51f9e228ac71a1645775ab"`
Dec 15 04:20:18.455 INFO [stdout] f51a51465d53dda7d20f10e50f39c541b3b73ed3df51f9e228ac71a1645775ab
Dec 15 04:20:18.460 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 04:20:18.811 INFO [stdout] 34f05f35fe9cd941261a1e7c2a08a9eaf6267e2baf123654876b4b645947fcf8
Dec 15 04:20:18.813 INFO running `"docker" "start" "-a" "34f05f35fe9cd941261a1e7c2a08a9eaf6267e2baf123654876b4b645947fcf8"`
Dec 15 04:20:20.088 INFO [stderr] usermod: no changes
Dec 15 04:20:20.139 INFO [stderr]    Compiling mpack v0.1.2 (/source)
Dec 15 04:20:20.975 INFO [stderr] warning: unused macro definition
Dec 15 04:20:20.975 INFO [stderr]   --> src/lib.rs:38:1
Dec 15 04:20:20.975 INFO [stderr]    |
Dec 15 04:20:20.975 INFO [stderr] 38 | / macro_rules! nth_byte(
Dec 15 04:20:20.975 INFO [stderr] 39 | |     ($x:expr, $n:expr) => ((($x >> ($n * 8)) & 0xFF) as u8)
Dec 15 04:20:20.975 INFO [stderr] 40 | | );
Dec 15 04:20:20.975 INFO [stderr]    | |__^
Dec 15 04:20:20.975 INFO [stderr]    |
Dec 15 04:20:20.975 INFO [stderr]    = note: #[warn(unused_macros)] on by default
Dec 15 04:20:20.975 INFO [stderr] 
Dec 15 04:20:20.975 INFO [stderr] warning: unused import: `std::mem`
Dec 15 04:20:20.975 INFO [stderr]    --> src/lib.rs:717:9
Dec 15 04:20:20.975 INFO [stderr]     |
Dec 15 04:20:20.975 INFO [stderr] 717 |     use std::mem;
Dec 15 04:20:20.975 INFO [stderr]     |         ^^^^^^^^
Dec 15 04:20:20.975 INFO [stderr]     |
Dec 15 04:20:20.975 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 15 04:20:20.975 INFO [stderr] 
Dec 15 04:20:20.975 INFO [stderr] warning: unused import: `std::slice`
Dec 15 04:20:20.975 INFO [stderr]    --> src/lib.rs:718:9
Dec 15 04:20:20.975 INFO [stderr]     |
Dec 15 04:20:20.975 INFO [stderr] 718 |     use std::slice;
Dec 15 04:20:20.975 INFO [stderr]     |         ^^^^^^^^^^
Dec 15 04:20:20.975 INFO [stderr] 
Dec 15 04:20:21.567 INFO [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
Dec 15 04:20:21.567 INFO [stderr]    --> src/lib.rs:820:9
Dec 15 04:20:21.567 INFO [stderr]     |
Dec 15 04:20:21.567 INFO [stderr] 820 |         assert_eq!(x.b, 42);
Dec 15 04:20:21.567 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^
Dec 15 04:20:21.567 INFO [stderr]     |
Dec 15 04:20:21.567 INFO [stderr]     = note: #[warn(safe_packed_borrows)] on by default
Dec 15 04:20:21.567 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 15 04:20:21.567 INFO [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
Dec 15 04:20:21.567 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 15 04:20:21.567 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 15 04:20:21.567 INFO [stderr] 
Dec 15 04:20:23.850 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.74s
Dec 15 04:20:23.854 INFO [stderr] su: No module specific data is present
Dec 15 04:20:24.497 INFO running `"docker" "inspect" "34f05f35fe9cd941261a1e7c2a08a9eaf6267e2baf123654876b4b645947fcf8"`
Dec 15 04:20:24.946 INFO running `"docker" "rm" "-f" "34f05f35fe9cd941261a1e7c2a08a9eaf6267e2baf123654876b4b645947fcf8"`
Dec 15 04:20:25.109 INFO [stdout] 34f05f35fe9cd941261a1e7c2a08a9eaf6267e2baf123654876b4b645947fcf8