Dec 05 17:06:43.957 INFO checking a2-0.3.5 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 17:06:43.958 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 05 17:06:44.156 INFO [stdout] 057d6116fbc6b4c98c648fdc7f278c4d13d772fe03d86eb58b56b4a8cb4d20d2
Dec 05 17:06:44.187 INFO running `"docker" "start" "-a" "057d6116fbc6b4c98c648fdc7f278c4d13d772fe03d86eb58b56b4a8cb4d20d2"`
Dec 05 17:06:44.575 INFO [stderr] usermod: no changes
Dec 05 17:06:44.841 INFO [stderr]    Compiling indoc-impl v0.2.8
Dec 05 17:06:44.843 INFO [stderr]     Checking pretty_env_logger v0.2.5
Dec 05 17:06:46.942 INFO [stderr]     Checking hyper-alpn v0.1.4
Dec 05 17:06:47.162 INFO [stderr]     Checking indoc v0.2.8
Dec 05 17:06:54.703 INFO [stderr]     Checking a2 v0.3.5 (/source)
Dec 05 17:07:25.967 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.36s
Dec 05 17:07:25.995 INFO [stderr] su: No module specific data is present
Dec 05 17:07:26.886 INFO running `"docker" "inspect" "057d6116fbc6b4c98c648fdc7f278c4d13d772fe03d86eb58b56b4a8cb4d20d2"`
Dec 05 17:07:27.145 INFO running `"docker" "rm" "-f" "057d6116fbc6b4c98c648fdc7f278c4d13d772fe03d86eb58b56b4a8cb4d20d2"`
Dec 05 17:07:27.586 INFO [stdout] 057d6116fbc6b4c98c648fdc7f278c4d13d772fe03d86eb58b56b4a8cb4d20d2