Dec 18 18:13:15.798 INFO checking bigint2-0.1.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 18:13:15.798 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/bigint2/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 18:13:16.056 INFO [stdout] 39f521e32d7eed3b1d7d494f60a5433ba6d85875c97920ea29a159279f9118e8
Dec 18 18:13:16.062 INFO running `"docker" "start" "-a" "39f521e32d7eed3b1d7d494f60a5433ba6d85875c97920ea29a159279f9118e8"`
Dec 18 18:13:16.766 INFO [stderr]     Checking rlp2 v0.2.0
Dec 18 18:13:17.405 INFO [stderr]     Checking bigint2 v0.1.0 (/opt/crater/workdir)
Dec 18 18:13:18.076 INFO [stderr] warning: constant item is never used: `ZERO_BIG_DIGIT`
Dec 18 18:13:18.076 INFO [stderr]   --> src/algorithms.rs:31:5
Dec 18 18:13:18.076 INFO [stderr]    |
Dec 18 18:13:18.076 INFO [stderr] 31 |     pub const ZERO_BIG_DIGIT: BigDigit = 0;
Dec 18 18:13:18.076 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:13:18.076 INFO [stderr]    |
Dec 18 18:13:18.076 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 18:13:18.076 INFO [stderr] 
Dec 18 18:13:18.076 INFO [stderr] warning: function is never used: `to_doublebigdigit`
Dec 18 18:13:18.077 INFO [stderr]   --> src/algorithms.rs:56:5
Dec 18 18:13:18.077 INFO [stderr]    |
Dec 18 18:13:18.077 INFO [stderr] 56 |     pub fn to_doublebigdigit(hi: BigDigit, lo: BigDigit) -> DoubleBigDigit {
Dec 18 18:13:18.077 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:13:18.077 INFO [stderr] 
Dec 18 18:13:18.180 INFO [stderr] warning: constant item is never used: `ZERO_BIG_DIGIT`
Dec 18 18:13:18.180 INFO [stderr]   --> src/algorithms.rs:31:5
Dec 18 18:13:18.180 INFO [stderr]    |
Dec 18 18:13:18.180 INFO [stderr] 31 |     pub const ZERO_BIG_DIGIT: BigDigit = 0;
Dec 18 18:13:18.180 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:13:18.180 INFO [stderr]    |
Dec 18 18:13:18.180 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 18:13:18.180 INFO [stderr] 
Dec 18 18:13:18.180 INFO [stderr] warning: function is never used: `to_doublebigdigit`
Dec 18 18:13:18.180 INFO [stderr]   --> src/algorithms.rs:56:5
Dec 18 18:13:18.180 INFO [stderr]    |
Dec 18 18:13:18.180 INFO [stderr] 56 |     pub fn to_doublebigdigit(hi: BigDigit, lo: BigDigit) -> DoubleBigDigit {
Dec 18 18:13:18.180 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:13:18.180 INFO [stderr] 
Dec 18 18:13:18.258 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
Dec 18 18:13:18.904 INFO running `"docker" "inspect" "39f521e32d7eed3b1d7d494f60a5433ba6d85875c97920ea29a159279f9118e8"`
Dec 18 18:13:19.118 INFO running `"docker" "rm" "-f" "39f521e32d7eed3b1d7d494f60a5433ba6d85875c97920ea29a159279f9118e8"`
Dec 18 18:13:19.428 INFO [stdout] 39f521e32d7eed3b1d7d494f60a5433ba6d85875c97920ea29a159279f9118e8