Dec 18 18:00:22.761 INFO checking byte-sequence-0.2.2 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 18:00:22.761 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/byte-sequence/0.2.2:/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 18:00:22.937 INFO [stdout] 372494c9769d901159fa7d5e55e65f06d16e9d70b26d8e199a540753bf6bf310
Dec 18 18:00:22.940 INFO running `"docker" "start" "-a" "372494c9769d901159fa7d5e55e65f06d16e9d70b26d8e199a540753bf6bf310"`
Dec 18 18:00:23.563 INFO [stderr]     Checking byte-sequence v0.2.2 (/opt/crater/workdir)
Dec 18 18:00:24.002 INFO [stderr] warning: unused imports: `Deserialize`, `Serialize`
Dec 18 18:00:24.002 INFO [stderr]    --> src/lib.rs:147:17
Dec 18 18:00:24.002 INFO [stderr]     |
Dec 18 18:00:24.002 INFO [stderr] 147 |     use serde::{Deserialize, Deserializer, Serialize, Serializer};
Dec 18 18:00:24.002 INFO [stderr]     |                 ^^^^^^^^^^^                ^^^^^^^^^
Dec 18 18:00:24.002 INFO [stderr]     |
Dec 18 18:00:24.002 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 18 18:00:24.002 INFO [stderr] 
Dec 18 18:00:24.135 INFO [stderr] warning: unused import: `Deserializer`
Dec 18 18:00:24.135 INFO [stderr]    --> src/lib.rs:147:30
Dec 18 18:00:24.135 INFO [stderr]     |
Dec 18 18:00:24.135 INFO [stderr] 147 |     use serde::{Deserialize, Deserializer, Serialize, Serializer};
Dec 18 18:00:24.135 INFO [stderr]     |                              ^^^^^^^^^^^^
Dec 18 18:00:24.135 INFO [stderr] 
Dec 18 18:00:24.135 INFO [stderr] warning: unused import: `Serializer`
Dec 18 18:00:24.135 INFO [stderr]    --> src/lib.rs:147:55
Dec 18 18:00:24.135 INFO [stderr]     |
Dec 18 18:00:24.135 INFO [stderr] 147 |     use serde::{Deserialize, Deserializer, Serialize, Serializer};
Dec 18 18:00:24.135 INFO [stderr]     |                                                       ^^^^^^^^^^
Dec 18 18:00:24.135 INFO [stderr] 
Dec 18 18:00:24.203 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
Dec 18 18:00:24.527 INFO running `"docker" "inspect" "372494c9769d901159fa7d5e55e65f06d16e9d70b26d8e199a540753bf6bf310"`
Dec 18 18:00:24.629 INFO running `"docker" "rm" "-f" "372494c9769d901159fa7d5e55e65f06d16e9d70b26d8e199a540753bf6bf310"`
Dec 18 18:00:24.730 INFO [stdout] 372494c9769d901159fa7d5e55e65f06d16e9d70b26d8e199a540753bf6bf310