[INFO] fetching crate simple_bitfield 0.1.8...
[INFO] testing simple_bitfield-0.1.8 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate simple_bitfield 0.1.8 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate simple_bitfield 0.1.8
[INFO] finished tweaking crates.io crate simple_bitfield 0.1.8
[INFO] tweaked toml for crates.io crate simple_bitfield 0.1.8 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate simple_bitfield 0.1.8 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c54b623538b75c0b04e81d23b422ccf9a0d9a697e024da93a031c76bb7967997
[INFO] running `Command { std: "docker" "start" "-a" "c54b623538b75c0b04e81d23b422ccf9a0d9a697e024da93a031c76bb7967997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c54b623538b75c0b04e81d23b422ccf9a0d9a697e024da93a031c76bb7967997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c54b623538b75c0b04e81d23b422ccf9a0d9a697e024da93a031c76bb7967997", kill_on_drop: false }`
[INFO] [stdout] c54b623538b75c0b04e81d23b422ccf9a0d9a697e024da93a031c76bb7967997
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eccc217a2168cac1887721ad5c91c5a47caaed89ed7782df043b461c58782bf1
[INFO] running `Command { std: "docker" "start" "-a" "eccc217a2168cac1887721ad5c91c5a47caaed89ed7782df043b461c58782bf1", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple_bitfield v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "eccc217a2168cac1887721ad5c91c5a47caaed89ed7782df043b461c58782bf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eccc217a2168cac1887721ad5c91c5a47caaed89ed7782df043b461c58782bf1", kill_on_drop: false }`
[INFO] [stdout] eccc217a2168cac1887721ad5c91c5a47caaed89ed7782df043b461c58782bf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 388e591511c2ab4fae76cd8d52bf96d8673064be9b87df3db1c6d8b1eff7fe6f
[INFO] running `Command { std: "docker" "start" "-a" "388e591511c2ab4fae76cd8d52bf96d8673064be9b87df3db1c6d8b1eff7fe6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple_bitfield v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `bitfield`
[INFO] [stdout]  --> src/tests.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::{bitfield, Field, Bitfield};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simple_bitfield` (lib test) due to 1 previous error; 1 warning emitted
[INFO] [stdout] error[E0793]: reference to field of packed struct is unaligned
[INFO] [stdout]    --> src/tests.rs:169:16
[INFO] [stdout]     |
[INFO] [stdout] 169 |     assert_eq!(the_struct.bitfield1.field2.get(), 1);
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this struct is 1-byte aligned, but the type of this field may require higher alignment
[INFO] [stdout]     = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout]     = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0793`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "388e591511c2ab4fae76cd8d52bf96d8673064be9b87df3db1c6d8b1eff7fe6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "388e591511c2ab4fae76cd8d52bf96d8673064be9b87df3db1c6d8b1eff7fe6f", kill_on_drop: false }`
[INFO] [stdout] 388e591511c2ab4fae76cd8d52bf96d8673064be9b87df3db1c6d8b1eff7fe6f