[INFO] crate bitfield-register 0.2.1 is already in cache
[INFO] checking bitfield-register-0.2.1 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate bitfield-register 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate bitfield-register 0.2.1 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate bitfield-register 0.2.1
[INFO] finished tweaking crates.io crate bitfield-register 0.2.1
[INFO] tweaked toml for crates.io crate bitfield-register 0.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5c4d7cb16a4f5d7788054123091f355be11803b043f791725b2eaaed6d6b97c6
[INFO] running `"docker" "start" "-a" "5c4d7cb16a4f5d7788054123091f355be11803b043f791725b2eaaed6d6b97c6"`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling bitfield-register-macro v0.2.1
[INFO] [stderr]     Checking bitfield-register v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `FromBitfield`, `IntoBitfield`
[INFO] [stderr]    --> src/lib.rs:107:17
[INFO] [stderr]     |
[INFO] [stderr] 107 |     use super::{FromBitfield, IntoBitfield};
[INFO] [stderr]     |                 ^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/lib.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 | /     macro_rules! test_into {
[INFO] [stderr] 110 | |         ($value:expr, $expected_array:expr, $array_len:expr) => (
[INFO] [stderr] 111 | |             let array: [u8;$array_len] = $value.into_bitfield();
[INFO] [stderr] 112 | |             assert_eq!(
[INFO] [stderr] ...   |
[INFO] [stderr] 116 | |         )
[INFO] [stderr] 117 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/lib.rs:119:5
[INFO] [stderr]     |
[INFO] [stderr] 119 | /     macro_rules! test_from {
[INFO] [stderr] 120 | |         ($value_type:ty, $array_len:expr, $array:expr, $expected_value:expr) => (
[INFO] [stderr] 121 | |             assert_eq!(
[INFO] [stderr] 122 | |                 <$value_type as FromBitfield<[u8;$array_len]>>::from_bitfield($array),
[INFO] [stderr] ...   |
[INFO] [stderr] 125 | |         )
[INFO] [stderr] 126 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.93s
[INFO] running `"docker" "inspect" "5c4d7cb16a4f5d7788054123091f355be11803b043f791725b2eaaed6d6b97c6"`
[INFO] running `"docker" "rm" "-f" "5c4d7cb16a4f5d7788054123091f355be11803b043f791725b2eaaed6d6b97c6"`
[INFO] [stdout] 5c4d7cb16a4f5d7788054123091f355be11803b043f791725b2eaaed6d6b97c6
