[INFO] crate bitfield-register 0.2.1 is already in cache
[INFO] checking bitfield-register-0.2.1 against try#a243773eaf3fedcd203f10ae4579e4f106bf7ccd for pr-68325
[INFO] extracting crate bitfield-register 0.2.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate bitfield-register 0.2.1 on toolchain a243773eaf3fedcd203f10ae4579e4f106bf7ccd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+a243773eaf3fedcd203f10ae4579e4f106bf7ccd" "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-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+a243773eaf3fedcd203f10ae4579e4f106bf7ccd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+a243773eaf3fedcd203f10ae4579e4f106bf7ccd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+a243773eaf3fedcd203f10ae4579e4f106bf7ccd" "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] 7fb994e93f32c29ea04f3738306cf5be8e0b32399be960cb5e3b1b3a4fb3c597
[INFO] running `"docker" "start" "-a" "7fb994e93f32c29ea04f3738306cf5be8e0b32399be960cb5e3b1b3a4fb3c597"`
[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 2.44s
[INFO] running `"docker" "inspect" "7fb994e93f32c29ea04f3738306cf5be8e0b32399be960cb5e3b1b3a4fb3c597"`
[INFO] running `"docker" "rm" "-f" "7fb994e93f32c29ea04f3738306cf5be8e0b32399be960cb5e3b1b3a4fb3c597"`
[INFO] [stdout] 7fb994e93f32c29ea04f3738306cf5be8e0b32399be960cb5e3b1b3a4fb3c597