Dec 17 10:51:30.121 INFO checking zoosky/toml_experiments against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 10:51:30.121 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/zoosky/toml_experiments:/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 10:51:30.589 INFO [stdout] f22d9603b6f96429c0ab580428d17508c4ce6ee960fd1ddaaa4adc9f0be0d48b
Dec 17 10:51:30.591 INFO running `"docker" "start" "-a" "f22d9603b6f96429c0ab580428d17508c4ce6ee960fd1ddaaa4adc9f0be0d48b"`
Dec 17 10:51:33.173 INFO [stderr]     Checking serde v1.0.20
Dec 17 10:51:40.917 INFO [stderr]     Checking toml v0.4.5
Dec 17 10:51:42.761 INFO [stderr]     Checking toml_reader v0.1.0 (/opt/crater/workdir)
Dec 17 10:51:43.140 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.99s
Dec 17 10:51:44.306 INFO running `"docker" "inspect" "f22d9603b6f96429c0ab580428d17508c4ce6ee960fd1ddaaa4adc9f0be0d48b"`
Dec 17 10:51:44.552 INFO running `"docker" "rm" "-f" "f22d9603b6f96429c0ab580428d17508c4ce6ee960fd1ddaaa4adc9f0be0d48b"`
Dec 17 10:51:44.868 INFO [stdout] f22d9603b6f96429c0ab580428d17508c4ce6ee960fd1ddaaa4adc9f0be0d48b