Dec 19 11:59:55.928 INFO checking natreed/rust_tree_lib against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 11:59:55.929 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/natreed/rust_tree_lib:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 11:59:56.452 INFO [stdout] f265dd0925ee12b5a7d8432e0a0984671f5f7dd8565509afe50e8f9e9f7acf12
Dec 19 11:59:56.454 INFO running `"docker" "start" "-a" "f265dd0925ee12b5a7d8432e0a0984671f5f7dd8565509afe50e8f9e9f7acf12"`
Dec 19 11:59:59.429 INFO [stderr]     Checking generic_tree v0.1.0 (/opt/crater/workdir)
Dec 19 12:00:00.192 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
Dec 19 12:00:01.591 INFO running `"docker" "inspect" "f265dd0925ee12b5a7d8432e0a0984671f5f7dd8565509afe50e8f9e9f7acf12"`
Dec 19 12:00:01.966 INFO running `"docker" "rm" "-f" "f265dd0925ee12b5a7d8432e0a0984671f5f7dd8565509afe50e8f9e9f7acf12"`
Dec 19 12:00:02.320 INFO [stdout] f265dd0925ee12b5a7d8432e0a0984671f5f7dd8565509afe50e8f9e9f7acf12