Oct 13 11:54:04.717 INFO checking mpack-0.1.2 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 11:54:04.717 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-0/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-0/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 13 11:54:05.225 INFO blam! ba4a7b1e061799cdc495c65c42dde39ac669fec682a0d5ea347a9fcdd79cd784
Oct 13 11:54:05.227 INFO running `"docker" "start" "-a" "ba4a7b1e061799cdc495c65c42dde39ac669fec682a0d5ea347a9fcdd79cd784"`
Oct 13 11:54:07.750 INFO kablam! usermod: no changes
Oct 13 11:54:07.856 INFO kablam!     Checking mpack v0.1.2 (/source)
Oct 13 11:54:09.092 INFO kablam! warning: unused macro definition
Oct 13 11:54:09.092 INFO kablam!   --> src/lib.rs:38:1
Oct 13 11:54:09.092 INFO kablam!    |
Oct 13 11:54:09.092 INFO kablam! 38 | / macro_rules! nth_byte(
Oct 13 11:54:09.092 INFO kablam! 39 | |     ($x:expr, $n:expr) => ((($x >> ($n * 8)) & 0xFF) as u8)
Oct 13 11:54:09.092 INFO kablam! 40 | | );
Oct 13 11:54:09.092 INFO kablam!    | |__^
Oct 13 11:54:09.092 INFO kablam!    |
Oct 13 11:54:09.092 INFO kablam!    = note: #[warn(unused_macros)] on by default
Oct 13 11:54:09.092 INFO kablam! 
Oct 13 11:54:09.600 INFO kablam! warning: unused macro definition
Oct 13 11:54:09.600 INFO kablam!   --> src/lib.rs:38:1
Oct 13 11:54:09.600 INFO kablam!    |
Oct 13 11:54:09.600 INFO kablam! 38 | / macro_rules! nth_byte(
Oct 13 11:54:09.600 INFO kablam! 39 | |     ($x:expr, $n:expr) => ((($x >> ($n * 8)) & 0xFF) as u8)
Oct 13 11:54:09.600 INFO kablam! 40 | | );
Oct 13 11:54:09.600 INFO kablam!    | |__^
Oct 13 11:54:09.600 INFO kablam!    |
Oct 13 11:54:09.600 INFO kablam!    = note: #[warn(unused_macros)] on by default
Oct 13 11:54:09.600 INFO kablam! 
Oct 13 11:54:09.600 INFO kablam! warning: unused import: `std::mem`
Oct 13 11:54:09.600 INFO kablam!    --> src/lib.rs:717:9
Oct 13 11:54:09.600 INFO kablam!     |
Oct 13 11:54:09.601 INFO kablam! 717 |     use std::mem;
Oct 13 11:54:09.601 INFO kablam!     |         ^^^^^^^^
Oct 13 11:54:09.601 INFO kablam!     |
Oct 13 11:54:09.601 INFO kablam!     = note: #[warn(unused_imports)] on by default
Oct 13 11:54:09.601 INFO kablam! 
Oct 13 11:54:09.601 INFO kablam! warning: unused import: `std::slice`
Oct 13 11:54:09.601 INFO kablam!    --> src/lib.rs:718:9
Oct 13 11:54:09.601 INFO kablam!     |
Oct 13 11:54:09.601 INFO kablam! 718 |     use std::slice;
Oct 13 11:54:09.601 INFO kablam!     |         ^^^^^^^^^^
Oct 13 11:54:09.601 INFO kablam! 
Oct 13 11:54:10.350 INFO kablam! warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
Oct 13 11:54:10.351 INFO kablam!    --> src/lib.rs:820:9
Oct 13 11:54:10.351 INFO kablam!     |
Oct 13 11:54:10.351 INFO kablam! 820 |         assert_eq!(x.b, 42);
Oct 13 11:54:10.351 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^
Oct 13 11:54:10.352 INFO kablam!     |
Oct 13 11:54:10.352 INFO kablam!     = note: #[warn(safe_packed_borrows)] on by default
Oct 13 11:54:10.352 INFO kablam!     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Oct 13 11:54:10.353 INFO kablam!     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
Oct 13 11:54:10.353 INFO kablam!     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
Oct 13 11:54:10.353 INFO kablam!     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Oct 13 11:54:10.354 INFO kablam! 
Oct 13 11:54:10.428 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.63s
Oct 13 11:54:10.429 INFO kablam! su: No module specific data is present
Oct 13 11:54:11.549 INFO running `"docker" "rm" "-f" "ba4a7b1e061799cdc495c65c42dde39ac669fec682a0d5ea347a9fcdd79cd784"`
Oct 13 11:54:11.799 INFO blam! ba4a7b1e061799cdc495c65c42dde39ac669fec682a0d5ea347a9fcdd79cd784