[INFO] fetching crate simple_bitfield 0.1.8...
[INFO] checking simple_bitfield-0.1.8 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate simple_bitfield 0.1.8 into /workspace/builds/worker-5-tc1/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-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate simple_bitfield 0.1.8 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f8677a07609dffb6d056234195e3ab36f4c92cb5a3b9d5e562836bad6c4b0ae
[INFO] running `Command { std: "docker" "start" "-a" "5f8677a07609dffb6d056234195e3ab36f4c92cb5a3b9d5e562836bad6c4b0ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f8677a07609dffb6d056234195e3ab36f4c92cb5a3b9d5e562836bad6c4b0ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f8677a07609dffb6d056234195e3ab36f4c92cb5a3b9d5e562836bad6c4b0ae", kill_on_drop: false }`
[INFO] [stdout] 5f8677a07609dffb6d056234195e3ab36f4c92cb5a3b9d5e562836bad6c4b0ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e0a21d9212abc2f08f76a29fadb4a4afc7e07f7b3eecae4880b0252f36f97e4
[INFO] running `Command { std: "docker" "start" "-a" "0e0a21d9212abc2f08f76a29fadb4a4afc7e07f7b3eecae4880b0252f36f97e4", kill_on_drop: false }`
[INFO] [stderr]     Checking simple_bitfield v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0793]: reference to packed field 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: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses
[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] [stderr] error: could not compile `simple_bitfield` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0e0a21d9212abc2f08f76a29fadb4a4afc7e07f7b3eecae4880b0252f36f97e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e0a21d9212abc2f08f76a29fadb4a4afc7e07f7b3eecae4880b0252f36f97e4", kill_on_drop: false }`
[INFO] [stdout] 0e0a21d9212abc2f08f76a29fadb4a4afc7e07f7b3eecae4880b0252f36f97e4