Oct 13 09:49:56.623 INFO checking root-ls-0.1.1 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 09:49:56.624 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 09:49:56.989 INFO blam! f9cb40c6357519db17eb60d94cd5576d3217efb61634dac4088ee8689ca14e7d
Oct 13 09:49:56.996 INFO running `"docker" "start" "-a" "f9cb40c6357519db17eb60d94cd5576d3217efb61634dac4088ee8689ca14e7d"`
Oct 13 09:49:58.263 INFO kablam! usermod: no changes
Oct 13 09:49:58.500 INFO kablam!    Compiling rustfmt v0.9.0
Oct 13 09:49:58.504 INFO kablam!    Compiling lzma-sys v0.1.11
Oct 13 09:49:58.506 INFO kablam!     Checking strings v0.1.1
Oct 13 09:49:58.513 INFO kablam!     Checking toml v0.4.8
Oct 13 09:50:04.869 INFO kablam!     Checking xz2 v0.1.6
Oct 13 09:50:06.397 INFO kablam!     Checking root-io v0.1.1
Oct 13 09:50:19.313 INFO kablam!     Checking root-ls v0.1.1 (/source)
Oct 13 09:50:25.325 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 27.03s
Oct 13 09:50:25.348 INFO kablam! su: No module specific data is present
Oct 13 09:50:25.854 INFO running `"docker" "rm" "-f" "f9cb40c6357519db17eb60d94cd5576d3217efb61634dac4088ee8689ca14e7d"`
Oct 13 09:50:26.181 INFO blam! f9cb40c6357519db17eb60d94cd5576d3217efb61634dac4088ee8689ca14e7d