Dec 17 10:51:29.201 INFO checking zoosky/toml_experiments against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 10:51:29.201 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 10:51:29.707 INFO [stdout] f3773127ece1dca82194f362c883e2fc92f5b86a9dd8253d3dfbd7244107a711
Dec 17 10:51:29.709 INFO running `"docker" "start" "-a" "f3773127ece1dca82194f362c883e2fc92f5b86a9dd8253d3dfbd7244107a711"`
Dec 17 10:51:31.696 INFO [stderr]     Checking serde v1.0.20
Dec 17 10:51:39.553 INFO [stderr]     Checking toml v0.4.5
Dec 17 10:51:41.218 INFO [stderr]     Checking toml_reader v0.1.0 (/opt/crater/workdir)
Dec 17 10:51:41.569 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.92s
Dec 17 10:51:43.002 INFO running `"docker" "inspect" "f3773127ece1dca82194f362c883e2fc92f5b86a9dd8253d3dfbd7244107a711"`
Dec 17 10:51:43.324 INFO running `"docker" "rm" "-f" "f3773127ece1dca82194f362c883e2fc92f5b86a9dd8253d3dfbd7244107a711"`
Dec 17 10:51:43.660 INFO [stdout] f3773127ece1dca82194f362c883e2fc92f5b86a9dd8253d3dfbd7244107a711