Dec 19 07:10:58.032 INFO checking thoughtworks/candouble against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 07:10:58.032 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/thoughtworks/candouble:/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 07:10:58.408 INFO [stdout] 06b572831c19c94e9e66193bec4999d48574c5c39bb42e7decaac0ff468e9c33
Dec 19 07:10:58.414 INFO running `"docker" "start" "-a" "06b572831c19c94e9e66193bec4999d48574c5c39bb42e7decaac0ff468e9c33"`
Dec 19 07:11:00.574 INFO [stderr]    Compiling candouble v0.1.0 (/opt/crater/workdir)
Dec 19 07:11:00.574 INFO [stderr]     Checking getopts v0.2.18
Dec 19 07:11:00.575 INFO [stderr]     Checking serde_json v1.0.30
Dec 19 07:11:00.575 INFO [stderr]    Compiling syn v0.15.6
Dec 19 07:11:12.125 INFO [stderr]    Compiling serde_derive v1.0.79
Dec 19 07:11:28.637 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.15s
Dec 19 07:11:30.187 INFO running `"docker" "inspect" "06b572831c19c94e9e66193bec4999d48574c5c39bb42e7decaac0ff468e9c33"`
Dec 19 07:11:30.602 INFO running `"docker" "rm" "-f" "06b572831c19c94e9e66193bec4999d48574c5c39bb42e7decaac0ff468e9c33"`
Dec 19 07:11:30.942 INFO [stdout] 06b572831c19c94e9e66193bec4999d48574c5c39bb42e7decaac0ff468e9c33