Dec 19 12:57:48.170 INFO checking matthewa150/rusty_euler against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 12:57:48.170 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/matthewa150/rusty_euler:/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 12:57:48.541 INFO [stdout] c92497d12f33d438c73e9341797fa116ddbd8483bddda7ca80a7a842318b37b1
Dec 19 12:57:48.546 INFO running `"docker" "start" "-a" "c92497d12f33d438c73e9341797fa116ddbd8483bddda7ca80a7a842318b37b1"`
Dec 19 12:57:49.778 INFO [stderr]     Checking primes v0.2.0
Dec 19 12:57:49.778 INFO [stderr]     Checking num-bigint v0.1.40
Dec 19 12:57:51.517 INFO [stderr]     Checking num-rational v0.1.39
Dec 19 12:57:52.109 INFO [stderr]     Checking num v0.1.40
Dec 19 12:57:52.382 INFO [stderr]     Checking rusty_euler v0.1.0 (/opt/crater/workdir)
Dec 19 12:57:52.992 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.28s
Dec 19 12:57:53.916 INFO running `"docker" "inspect" "c92497d12f33d438c73e9341797fa116ddbd8483bddda7ca80a7a842318b37b1"`
Dec 19 12:57:54.158 INFO running `"docker" "rm" "-f" "c92497d12f33d438c73e9341797fa116ddbd8483bddda7ca80a7a842318b37b1"`
Dec 19 12:57:54.452 INFO [stdout] c92497d12f33d438c73e9341797fa116ddbd8483bddda7ca80a7a842318b37b1