Dec 19 09:53:15.697 INFO checking rrichardson/topiclab against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 09:53:15.697 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/rrichardson/topiclab:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 09:53:16.165 INFO [stdout] a978369b9f58b8b44fd99962c8909ff729c72e25adf697fa0722f2b63891bd17
Dec 19 09:53:16.167 INFO running `"docker" "start" "-a" "a978369b9f58b8b44fd99962c8909ff729c72e25adf697fa0722f2b63891bd17"`
Dec 19 09:53:18.251 INFO [stderr]     Checking topiclab v0.1.0 (/opt/crater/workdir)
Dec 19 09:53:18.594 INFO [stderr] warning: unused import: `std::collections::HashSet`
Dec 19 09:53:18.594 INFO [stderr]  --> src/main.rs:9:5
Dec 19 09:53:18.594 INFO [stderr]   |
Dec 19 09:53:18.594 INFO [stderr] 9 | use std::collections::HashSet;
Dec 19 09:53:18.595 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:53:18.595 INFO [stderr]   |
Dec 19 09:53:18.595 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 09:53:18.595 INFO [stderr] 
Dec 19 09:53:18.600 INFO [stderr] warning: unused import: `std::collections::HashSet`
Dec 19 09:53:18.600 INFO [stderr]  --> src/main.rs:9:5
Dec 19 09:53:18.600 INFO [stderr]   |
Dec 19 09:53:18.600 INFO [stderr] 9 | use std::collections::HashSet;
Dec 19 09:53:18.600 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:53:18.600 INFO [stderr]   |
Dec 19 09:53:18.600 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 09:53:18.600 INFO [stderr] 
Dec 19 09:53:18.740 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
Dec 19 09:53:19.428 INFO running `"docker" "inspect" "a978369b9f58b8b44fd99962c8909ff729c72e25adf697fa0722f2b63891bd17"`
Dec 19 09:53:19.822 INFO running `"docker" "rm" "-f" "a978369b9f58b8b44fd99962c8909ff729c72e25adf697fa0722f2b63891bd17"`
Dec 19 09:53:20.133 INFO [stdout] a978369b9f58b8b44fd99962c8909ff729c72e25adf697fa0722f2b63891bd17