Dec 18 10:15:09.390 INFO checking tiny-secp256k1-0.1.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 10:15:09.390 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/tiny-secp256k1/0.1.0:/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 10:15:09.875 INFO [stdout] 5c9cc4d00573f4bab92d5da2edeff0a3728ca063b7a42e2e77555377d8639bf3
Dec 18 10:15:09.878 INFO running `"docker" "start" "-a" "5c9cc4d00573f4bab92d5da2edeff0a3728ca063b7a42e2e77555377d8639bf3"`
Dec 18 10:15:10.930 INFO [stderr]     Checking tiny-secp256k1 v0.1.0 (/opt/crater/workdir)
Dec 18 10:15:10.930 INFO [stderr]    Compiling secp256k1 v0.6.3
Dec 18 10:15:10.930 INFO [stderr]     Checking serde v0.6.15
Dec 18 10:15:11.672 INFO [stderr] warning: unused return value of `core::ops::Mul::mul` that must be used
Dec 18 10:15:11.672 INFO [stderr]    --> src/big_num.rs:281:4
Dec 18 10:15:11.672 INFO [stderr]     |
Dec 18 10:15:11.672 INFO [stderr] 281 |             self.mul(rhs.words[0]);
Dec 18 10:15:11.672 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 10:15:11.672 INFO [stderr]     |
Dec 18 10:15:11.672 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 10:15:11.672 INFO [stderr] 
Dec 18 10:15:14.444 INFO [stderr]     Checking serde_json v0.6.1
Dec 18 10:15:17.452 INFO [stderr] warning: unused return value of `core::ops::Mul::mul` that must be used
Dec 18 10:15:17.452 INFO [stderr]    --> src/big_num.rs:281:4
Dec 18 10:15:17.452 INFO [stderr]     |
Dec 18 10:15:17.452 INFO [stderr] 281 |             self.mul(rhs.words[0]);
Dec 18 10:15:17.452 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 10:15:17.452 INFO [stderr]     |
Dec 18 10:15:17.452 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 10:15:17.452 INFO [stderr] 
Dec 18 10:15:17.506 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.67s
Dec 18 10:15:17.932 INFO running `"docker" "inspect" "5c9cc4d00573f4bab92d5da2edeff0a3728ca063b7a42e2e77555377d8639bf3"`
Dec 18 10:15:18.022 INFO running `"docker" "rm" "-f" "5c9cc4d00573f4bab92d5da2edeff0a3728ca063b7a42e2e77555377d8639bf3"`
Dec 18 10:15:18.161 INFO [stdout] 5c9cc4d00573f4bab92d5da2edeff0a3728ca063b7a42e2e77555377d8639bf3