Dec 18 13:51:46.109 INFO checking mpack-0.1.2 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 13:51:46.109 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/mpack/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 13:51:46.601 INFO [stdout] ee4ae6a172802b617729e05198b1f314325c9dcbf8ece33ea85d848d3a75645d
Dec 18 13:51:46.604 INFO running `"docker" "start" "-a" "ee4ae6a172802b617729e05198b1f314325c9dcbf8ece33ea85d848d3a75645d"`
Dec 18 13:51:48.128 INFO [stderr]     Checking mpack v0.1.2 (/opt/crater/workdir)
Dec 18 13:51:48.416 INFO [stderr] warning: unused macro definition
Dec 18 13:51:48.416 INFO [stderr]   --> src/lib.rs:38:1
Dec 18 13:51:48.417 INFO [stderr]    |
Dec 18 13:51:48.417 INFO [stderr] 38 | / macro_rules! nth_byte(
Dec 18 13:51:48.417 INFO [stderr] 39 | |     ($x:expr, $n:expr) => ((($x >> ($n * 8)) & 0xFF) as u8)
Dec 18 13:51:48.417 INFO [stderr] 40 | | );
Dec 18 13:51:48.417 INFO [stderr]    | |__^
Dec 18 13:51:48.417 INFO [stderr]    |
Dec 18 13:51:48.417 INFO [stderr]    = note: #[warn(unused_macros)] on by default
Dec 18 13:51:48.417 INFO [stderr] 
Dec 18 13:51:48.549 INFO [stderr] warning: unused macro definition
Dec 18 13:51:48.549 INFO [stderr]   --> src/lib.rs:38:1
Dec 18 13:51:48.549 INFO [stderr]    |
Dec 18 13:51:48.549 INFO [stderr] 38 | / macro_rules! nth_byte(
Dec 18 13:51:48.549 INFO [stderr] 39 | |     ($x:expr, $n:expr) => ((($x >> ($n * 8)) & 0xFF) as u8)
Dec 18 13:51:48.549 INFO [stderr] 40 | | );
Dec 18 13:51:48.549 INFO [stderr]    | |__^
Dec 18 13:51:48.549 INFO [stderr]    |
Dec 18 13:51:48.549 INFO [stderr]    = note: #[warn(unused_macros)] on by default
Dec 18 13:51:48.550 INFO [stderr] 
Dec 18 13:51:48.552 INFO [stderr] warning: unused import: `std::mem`
Dec 18 13:51:48.553 INFO [stderr]    --> src/lib.rs:717:9
Dec 18 13:51:48.553 INFO [stderr]     |
Dec 18 13:51:48.553 INFO [stderr] 717 |     use std::mem;
Dec 18 13:51:48.553 INFO [stderr]     |         ^^^^^^^^
Dec 18 13:51:48.554 INFO [stderr]     |
Dec 18 13:51:48.554 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 18 13:51:48.554 INFO [stderr] 
Dec 18 13:51:48.554 INFO [stderr] warning: unused import: `std::slice`
Dec 18 13:51:48.554 INFO [stderr]    --> src/lib.rs:718:9
Dec 18 13:51:48.554 INFO [stderr]     |
Dec 18 13:51:48.554 INFO [stderr] 718 |     use std::slice;
Dec 18 13:51:48.554 INFO [stderr]     |         ^^^^^^^^^^
Dec 18 13:51:48.556 INFO [stderr] 
Dec 18 13:51:49.172 INFO [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
Dec 18 13:51:49.175 INFO [stderr]    --> src/lib.rs:820:9
Dec 18 13:51:49.175 INFO [stderr]     |
Dec 18 13:51:49.175 INFO [stderr] 820 |         assert_eq!(x.b, 42);
Dec 18 13:51:49.175 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^
Dec 18 13:51:49.175 INFO [stderr]     |
Dec 18 13:51:49.175 INFO [stderr]     = note: #[warn(safe_packed_borrows)] on by default
Dec 18 13:51:49.175 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 18 13:51:49.175 INFO [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
Dec 18 13:51:49.175 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 18 13:51:49.175 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 18 13:51:49.175 INFO [stderr] 
Dec 18 13:51:49.209 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
Dec 18 13:51:49.538 INFO running `"docker" "inspect" "ee4ae6a172802b617729e05198b1f314325c9dcbf8ece33ea85d848d3a75645d"`
Dec 18 13:51:49.624 INFO running `"docker" "rm" "-f" "ee4ae6a172802b617729e05198b1f314325c9dcbf8ece33ea85d848d3a75645d"`
Dec 18 13:51:49.797 INFO [stdout] ee4ae6a172802b617729e05198b1f314325c9dcbf8ece33ea85d848d3a75645d