Dec 19 10:43:17.852 INFO checking proprefenetre/rust-book against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 10:43:17.852 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/proprefenetre/rust-book:/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 10:43:18.037 INFO [stdout] 0b51e77c795b717a13a3e6e3b86fec0fabd6b6c69c96902e217f84ad688dc7b7
Dec 19 10:43:18.038 INFO running `"docker" "start" "-a" "0b51e77c795b717a13a3e6e3b86fec0fabd6b6c69c96902e217f84ad688dc7b7"`
Dec 19 10:43:18.604 INFO [stderr]     Checking collections v0.1.0 (/opt/crater/workdir)
Dec 19 10:43:18.899 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
Dec 19 10:43:19.120 INFO running `"docker" "inspect" "0b51e77c795b717a13a3e6e3b86fec0fabd6b6c69c96902e217f84ad688dc7b7"`
Dec 19 10:43:19.173 INFO running `"docker" "rm" "-f" "0b51e77c795b717a13a3e6e3b86fec0fabd6b6c69c96902e217f84ad688dc7b7"`
Dec 19 10:43:19.225 INFO [stdout] 0b51e77c795b717a13a3e6e3b86fec0fabd6b6c69c96902e217f84ad688dc7b7