Oct 13 09:05:28.813 INFO checking rwcell-0.1.2 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 09:05:28.814 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-4/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +4021bd0b3c5815b087d6db10ce461e7e4854ade7-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 13 09:05:29.245 INFO blam! 02ed82006afb0cf08c583715c14b91607128c6664103827e3563db4ac1e13640
Oct 13 09:05:29.247 INFO running `"docker" "start" "-a" "02ed82006afb0cf08c583715c14b91607128c6664103827e3563db4ac1e13640"`
Oct 13 09:05:31.062 INFO kablam! usermod: no changes
Oct 13 09:05:31.104 INFO kablam!     Checking rwcell v0.1.2 (/source)
Oct 13 09:05:32.072 INFO kablam! warning: the feature `time2` has been stable since 1.8.0 and no longer requires an attribute to enable
Oct 13 09:05:32.072 INFO kablam!  --> src/lib.rs:2:12
Oct 13 09:05:32.072 INFO kablam!   |
Oct 13 09:05:32.072 INFO kablam! 2 | #![feature(time2)]
Oct 13 09:05:32.072 INFO kablam!   |            ^^^^^
Oct 13 09:05:32.072 INFO kablam!   |
Oct 13 09:05:32.072 INFO kablam!   = note: #[warn(stable_features)] on by default
Oct 13 09:05:32.072 INFO kablam! 
Oct 13 09:05:32.096 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
Oct 13 09:05:32.100 INFO kablam! su: No module specific data is present
Oct 13 09:05:33.169 INFO running `"docker" "rm" "-f" "02ed82006afb0cf08c583715c14b91607128c6664103827e3563db4ac1e13640"`
Oct 13 09:05:33.451 INFO blam! 02ed82006afb0cf08c583715c14b91607128c6664103827e3563db4ac1e13640