[INFO] fetching crate simple_bitfield 0.1.8...
[INFO] testing simple_bitfield-0.1.8 against 1.49.0 for beta-1.50-1
[INFO] extracting crate simple_bitfield 0.1.8 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate simple_bitfield 0.1.8 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5d7d0792b215a0038c7d66e3d1d62f010ff5778ae1844cfc31d92d42fe85eb3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c5d7d0792b215a0038c7d66e3d1d62f010ff5778ae1844cfc31d92d42fe85eb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5d7d0792b215a0038c7d66e3d1d62f010ff5778ae1844cfc31d92d42fe85eb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5d7d0792b215a0038c7d66e3d1d62f010ff5778ae1844cfc31d92d42fe85eb3", kill_on_drop: false }`
[INFO] [stdout] c5d7d0792b215a0038c7d66e3d1d62f010ff5778ae1844cfc31d92d42fe85eb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 502f7ac9ccee18039c183706a0acc989e81eb489a1515255928f66e83f8e51f2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "502f7ac9ccee18039c183706a0acc989e81eb489a1515255928f66e83f8e51f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple_bitfield v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "502f7ac9ccee18039c183706a0acc989e81eb489a1515255928f66e83f8e51f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "502f7ac9ccee18039c183706a0acc989e81eb489a1515255928f66e83f8e51f2", kill_on_drop: false }`
[INFO] [stdout] 502f7ac9ccee18039c183706a0acc989e81eb489a1515255928f66e83f8e51f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0462ea47633351fe7e19262b4bc1f5c2331039c93d40ca9142185ec87e518e7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c0462ea47633351fe7e19262b4bc1f5c2331039c93d40ca9142185ec87e518e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple_bitfield v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[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: `#[warn(safe_packed_borrows)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "c0462ea47633351fe7e19262b4bc1f5c2331039c93d40ca9142185ec87e518e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0462ea47633351fe7e19262b4bc1f5c2331039c93d40ca9142185ec87e518e7", kill_on_drop: false }`
[INFO] [stdout] c0462ea47633351fe7e19262b4bc1f5c2331039c93d40ca9142185ec87e518e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 58039fbc49e88e18e7fcb9117461b03f3f58768083a88d9b49bce77f27a353b4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "58039fbc49e88e18e7fcb9117461b03f3f58768083a88d9b49bce77f27a353b4", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout] running 10 tests
[INFO] [stderr]    --> src/tests.rs:169:16
[INFO] [stdout] test tests::mask ... ok
[INFO] [stderr]     |
[INFO] [stdout] test tests::data_get ... ok
[INFO] [stderr] 169 |     assert_eq!(the_struct.bitfield1.field2.get(), 1);
[INFO] [stdout] test tests::offset ... ok
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] test tests::printing ... ok
[INFO] [stderr]     |
[INFO] [stdout] test tests::size ... ok
[INFO] [stderr]     = note: `#[warn(safe_packed_borrows)]` on by default
[INFO] [stdout] test tests::validity ... ok
[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!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/simple_bitfield-b21d397964817569
[INFO] [stderr]    Doc-tests simple_bitfield
[INFO] [stdout] test tests::use_in_struct ... ok
[INFO] [stdout] test tests::use_as_function_arguments ... ok
[INFO] [stdout] test tests::data_set_checked ... ok
[INFO] [stdout] test tests::data_set ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/lib.rs - TestBitfield::field_2 (line 536) ... ok
[INFO] [stdout] test src/lib.rs - TestBitfield::field_1 (line 536) ... ok
[INFO] [stdout] test src/lib.rs - Field::set_checked (line 222) ... ok
[INFO] [stdout] test src/lib.rs - (line 18) ... ok
[INFO] [stdout] test src/lib.rs - Field::set (line 190) ... ok
[INFO] [stdout] test src/lib.rs - bitfield (line 286) ... ok
[INFO] [stdout] test src/lib.rs - Field::MASK (line 129) ... ok
[INFO] [stdout] test src/lib.rs - Field::get (line 165) ... ok
[INFO] [stdout] test src/lib.rs - TestBitfield::Fields (line 538) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "58039fbc49e88e18e7fcb9117461b03f3f58768083a88d9b49bce77f27a353b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58039fbc49e88e18e7fcb9117461b03f3f58768083a88d9b49bce77f27a353b4", kill_on_drop: false }`
[INFO] [stdout] 58039fbc49e88e18e7fcb9117461b03f3f58768083a88d9b49bce77f27a353b4