Dec 05 10:14:47.204 INFO checking mpack-0.1.2 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 10:14:47.204 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 05 10:14:47.536 INFO [stdout] 68209ff8aa0bd4a6659ff3c8a5a80a891e3e1ab09cb188452c359fa1e3638d96
Dec 05 10:14:47.538 INFO running `"docker" "start" "-a" "68209ff8aa0bd4a6659ff3c8a5a80a891e3e1ab09cb188452c359fa1e3638d96"`
Dec 05 10:14:48.130 INFO [stderr] usermod: no changes
Dec 05 10:14:48.167 INFO [stderr]     Checking mpack v0.1.2 (/source)
Dec 05 10:14:48.723 INFO [stderr] warning: unused macro definition
Dec 05 10:14:48.723 INFO [stderr]   --> src/lib.rs:38:1
Dec 05 10:14:48.723 INFO [stderr]    |
Dec 05 10:14:48.723 INFO [stderr] 38 | / macro_rules! nth_byte(
Dec 05 10:14:48.723 INFO [stderr] 39 | |     ($x:expr, $n:expr) => ((($x >> ($n * 8)) & 0xFF) as u8)
Dec 05 10:14:48.723 INFO [stderr] 40 | | );
Dec 05 10:14:48.723 INFO [stderr]    | |__^
Dec 05 10:14:48.723 INFO [stderr]    |
Dec 05 10:14:48.723 INFO [stderr]    = note: #[warn(unused_macros)] on by default
Dec 05 10:14:48.723 INFO [stderr] 
Dec 05 10:14:49.023 INFO [stderr] warning: unused macro definition
Dec 05 10:14:49.023 INFO [stderr]   --> src/lib.rs:38:1
Dec 05 10:14:49.023 INFO [stderr]    |
Dec 05 10:14:49.023 INFO [stderr] 38 | / macro_rules! nth_byte(
Dec 05 10:14:49.023 INFO [stderr] 39 | |     ($x:expr, $n:expr) => ((($x >> ($n * 8)) & 0xFF) as u8)
Dec 05 10:14:49.023 INFO [stderr] 40 | | );
Dec 05 10:14:49.023 INFO [stderr]    | |__^
Dec 05 10:14:49.023 INFO [stderr]    |
Dec 05 10:14:49.023 INFO [stderr]    = note: #[warn(unused_macros)] on by default
Dec 05 10:14:49.023 INFO [stderr] 
Dec 05 10:14:49.027 INFO [stderr] warning: unused import: `std::mem`
Dec 05 10:14:49.027 INFO [stderr]    --> src/lib.rs:717:9
Dec 05 10:14:49.027 INFO [stderr]     |
Dec 05 10:14:49.027 INFO [stderr] 717 |     use std::mem;
Dec 05 10:14:49.027 INFO [stderr]     |         ^^^^^^^^
Dec 05 10:14:49.027 INFO [stderr]     |
Dec 05 10:14:49.027 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 05 10:14:49.027 INFO [stderr] 
Dec 05 10:14:49.027 INFO [stderr] warning: unused import: `std::slice`
Dec 05 10:14:49.027 INFO [stderr]    --> src/lib.rs:718:9
Dec 05 10:14:49.027 INFO [stderr]     |
Dec 05 10:14:49.027 INFO [stderr] 718 |     use std::slice;
Dec 05 10:14:49.027 INFO [stderr]     |         ^^^^^^^^^^
Dec 05 10:14:49.027 INFO [stderr] 
Dec 05 10:14:49.619 INFO [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
Dec 05 10:14:49.619 INFO [stderr]    --> src/lib.rs:820:9
Dec 05 10:14:49.619 INFO [stderr]     |
Dec 05 10:14:49.619 INFO [stderr] 820 |         assert_eq!(x.b, 42);
Dec 05 10:14:49.619 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^
Dec 05 10:14:49.619 INFO [stderr]     |
Dec 05 10:14:49.619 INFO [stderr]     = note: #[warn(safe_packed_borrows)] on by default
Dec 05 10:14:49.619 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 05 10:14:49.619 INFO [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
Dec 05 10:14:49.619 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 05 10:14:49.619 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 05 10:14:49.619 INFO [stderr] 
Dec 05 10:14:49.651 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
Dec 05 10:14:49.655 INFO [stderr] su: No module specific data is present
Dec 05 10:14:50.283 INFO running `"docker" "inspect" "68209ff8aa0bd4a6659ff3c8a5a80a891e3e1ab09cb188452c359fa1e3638d96"`
Dec 05 10:14:50.408 INFO running `"docker" "rm" "-f" "68209ff8aa0bd4a6659ff3c8a5a80a891e3e1ab09cb188452c359fa1e3638d96"`
Dec 05 10:14:50.537 INFO [stdout] 68209ff8aa0bd4a6659ff3c8a5a80a891e3e1ab09cb188452c359fa1e3638d96