Dec 19 11:45:11.095 INFO checking nkoehring/tt against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 11:45:11.095 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/nkoehring/tt:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 11:45:11.506 INFO [stdout] d2af300867598cdfad2b7f7f3032b824bacf6277c0a5c889331161c2747c2d33
Dec 19 11:45:11.508 INFO running `"docker" "start" "-a" "d2af300867598cdfad2b7f7f3032b824bacf6277c0a5c889331161c2747c2d33"`
Dec 19 11:45:13.014 INFO [stderr]     Checking serde v1.0.16
Dec 19 11:45:13.015 INFO [stderr]     Checking colored v1.5.3
Dec 19 11:45:13.025 INFO [stderr]     Checking chrono v0.4.0
Dec 19 11:45:21.655 INFO [stderr]     Checking toml v0.4.5
Dec 19 11:45:23.228 INFO [stderr]     Checking tt v0.1.0 (/opt/crater/workdir)
Dec 19 11:45:24.061 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.09s
Dec 19 11:45:25.414 INFO running `"docker" "inspect" "d2af300867598cdfad2b7f7f3032b824bacf6277c0a5c889331161c2747c2d33"`
Dec 19 11:45:25.642 INFO running `"docker" "rm" "-f" "d2af300867598cdfad2b7f7f3032b824bacf6277c0a5c889331161c2747c2d33"`
Dec 19 11:45:26.006 INFO [stdout] d2af300867598cdfad2b7f7f3032b824bacf6277c0a5c889331161c2747c2d33