Dec 04 12:15:09.519 INFO checking polybuildr/balloon-lang against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 12:15:09.519 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 04 12:15:10.052 INFO [stdout] 3ffba919f43b8eb6e07f6e5c64c02e034149e7ea724f5a0d3b12e01248d4cb49
Dec 04 12:15:10.055 INFO running `"docker" "start" "-a" "3ffba919f43b8eb6e07f6e5c64c02e034149e7ea724f5a0d3b12e01248d4cb49"`
Dec 04 12:15:11.846 INFO [stderr] usermod: no changes
Dec 04 12:15:12.039 INFO [stderr]     Checking linear-map v1.2.0
Dec 04 12:15:12.047 INFO [stderr]     Checking nix v0.5.1
Dec 04 12:15:12.047 INFO [stderr]    Compiling balloon v0.1.0 (/source)
Dec 04 12:15:12.047 INFO [stderr]     Checking hyper v0.10.12
Dec 04 12:15:17.520 INFO [stderr]     Checking rustyline v1.0.0
Dec 04 12:15:23.835 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.95s
Dec 04 12:15:23.855 INFO [stderr] su: No module specific data is present
Dec 04 12:15:24.891 INFO running `"docker" "inspect" "3ffba919f43b8eb6e07f6e5c64c02e034149e7ea724f5a0d3b12e01248d4cb49"`
Dec 04 12:15:25.145 INFO running `"docker" "rm" "-f" "3ffba919f43b8eb6e07f6e5c64c02e034149e7ea724f5a0d3b12e01248d4cb49"`
Dec 04 12:15:25.486 INFO [stdout] 3ffba919f43b8eb6e07f6e5c64c02e034149e7ea724f5a0d3b12e01248d4cb49