Dec 18 10:50:28.321 INFO checking stacktrace-0.2.1 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 10:50:28.321 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/stacktrace/0.2.1:/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 10:50:28.787 INFO [stdout] d1e48e30948be24ea75ec9061b7bd1aa151ed2f73444ef8f2b91f1ef28c0f49a
Dec 18 10:50:28.796 INFO running `"docker" "start" "-a" "d1e48e30948be24ea75ec9061b7bd1aa151ed2f73444ef8f2b91f1ef28c0f49a"`
Dec 18 10:50:31.028 INFO [stderr]     Checking backtrace v0.2.3
Dec 18 10:50:31.732 INFO [stderr]     Checking stacktrace v0.2.1 (/opt/crater/workdir)
Dec 18 10:50:32.776 INFO [stderr] warning: unused import: `std::fmt::Debug`
Dec 18 10:50:32.776 INFO [stderr]  --> examples/using_result/main.rs:3:5
Dec 18 10:50:32.776 INFO [stderr]   |
Dec 18 10:50:32.776 INFO [stderr] 3 | use std::fmt::Debug;
Dec 18 10:50:32.776 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 18 10:50:32.776 INFO [stderr]   |
Dec 18 10:50:32.776 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 10:50:32.776 INFO [stderr] 
Dec 18 10:50:32.917 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.98s
Dec 18 10:50:34.020 INFO running `"docker" "inspect" "d1e48e30948be24ea75ec9061b7bd1aa151ed2f73444ef8f2b91f1ef28c0f49a"`
Dec 18 10:50:34.350 INFO running `"docker" "rm" "-f" "d1e48e30948be24ea75ec9061b7bd1aa151ed2f73444ef8f2b91f1ef28c0f49a"`
Dec 18 10:50:34.652 INFO [stdout] d1e48e30948be24ea75ec9061b7bd1aa151ed2f73444ef8f2b91f1ef28c0f49a