Dec 19 15:59:31.556 INFO checking huwb/learningrust against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 15:59:31.556 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/huwb/learningrust:/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 15:59:31.766 INFO [stdout] ac0cf5e1a33b699aa2c5164694e928877a7310fee0fb4f41d51c5390f726b0c4
Dec 19 15:59:31.766 INFO running `"docker" "start" "-a" "ac0cf5e1a33b699aa2c5164694e928877a7310fee0fb4f41d51c5390f726b0c4"`
Dec 19 15:59:32.469 INFO [stderr]     Checking time v0.1.39
Dec 19 15:59:33.126 INFO [stderr]     Checking simple-stopwatch v0.1.4
Dec 19 15:59:33.312 INFO [stderr]     Checking learningrust v0.0.1 (/opt/crater/workdir)
Dec 19 15:59:34.414 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.97s
Dec 19 15:59:34.670 INFO running `"docker" "inspect" "ac0cf5e1a33b699aa2c5164694e928877a7310fee0fb4f41d51c5390f726b0c4"`
Dec 19 15:59:34.766 INFO running `"docker" "rm" "-f" "ac0cf5e1a33b699aa2c5164694e928877a7310fee0fb4f41d51c5390f726b0c4"`
Dec 19 15:59:34.924 INFO [stdout] ac0cf5e1a33b699aa2c5164694e928877a7310fee0fb4f41d51c5390f726b0c4