Dec 17 15:52:33.209 INFO checking scvalex/python-challenge against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 15:52:33.209 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/scvalex/python-challenge:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 15:52:33.660 INFO [stdout] 865c158d20e6fe37ae283491fe2725f712e857eea7f2c4f3289496a99c864dd6
Dec 17 15:52:33.668 INFO running `"docker" "start" "-a" "865c158d20e6fe37ae283491fe2725f712e857eea7f2c4f3289496a99c864dd6"`
Dec 17 15:52:35.543 INFO [stderr]    Compiling crc v1.7.0
Dec 17 15:52:36.680 INFO [stderr]     Checking libflate v0.1.14
Dec 17 15:52:38.168 INFO [stderr]     Checking reqwest v0.8.5
Dec 17 15:52:39.784 INFO [stderr]     Checking python-challenge v0.1.0 (/opt/crater/workdir)
Dec 17 15:52:41.748 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.56s
Dec 17 15:52:42.374 INFO running `"docker" "inspect" "865c158d20e6fe37ae283491fe2725f712e857eea7f2c4f3289496a99c864dd6"`
Dec 17 15:52:42.662 INFO running `"docker" "rm" "-f" "865c158d20e6fe37ae283491fe2725f712e857eea7f2c4f3289496a99c864dd6"`
Dec 17 15:52:42.934 INFO [stdout] 865c158d20e6fe37ae283491fe2725f712e857eea7f2c4f3289496a99c864dd6