Dec 18 10:41:55.935 INFO checking structopt-toml-derive-0.3.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 10:41:55.935 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/structopt-toml-derive/0.3.0:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 10:41:56.154 INFO [stdout] a833b244dfe218da3f241015602a03cdf09a9ed044ae1f95d76bb5aedc54e7c5
Dec 18 10:41:56.158 INFO running `"docker" "start" "-a" "a833b244dfe218da3f241015602a03cdf09a9ed044ae1f95d76bb5aedc54e7c5"`
Dec 18 10:41:57.259 INFO [stderr]     Checking proc-macro2 v0.2.3
Dec 18 10:41:57.827 INFO [stderr]     Checking quote v0.4.2
Dec 18 10:41:58.208 INFO [stderr]     Checking syn v0.12.15
Dec 18 10:42:01.063 INFO [stderr]     Checking structopt-toml-derive v0.3.0 (/opt/crater/workdir)
Dec 18 10:42:01.780 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.53s
Dec 18 10:42:02.347 INFO running `"docker" "inspect" "a833b244dfe218da3f241015602a03cdf09a9ed044ae1f95d76bb5aedc54e7c5"`
Dec 18 10:42:02.584 INFO running `"docker" "rm" "-f" "a833b244dfe218da3f241015602a03cdf09a9ed044ae1f95d76bb5aedc54e7c5"`
Dec 18 10:42:02.880 INFO [stdout] a833b244dfe218da3f241015602a03cdf09a9ed044ae1f95d76bb5aedc54e7c5