Nov 30 08:51:43.921 INFO checking RobotDisco/rust_chat against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 08:51:43.921 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-7/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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"`
Nov 30 08:51:44.492 INFO [stdout] a176bccaae4981517c16a3e3d772363938e0779b7bed1bdca684c7137195c0cc
Nov 30 08:51:44.494 INFO running `"docker" "start" "-a" "a176bccaae4981517c16a3e3d772363938e0779b7bed1bdca684c7137195c0cc"`
Nov 30 08:51:46.359 INFO [stderr] usermod: no changes
Nov 30 08:51:46.492 INFO [stderr]     Checking net2 v0.2.33
Nov 30 08:51:46.492 INFO [stderr]    Compiling http-muncher v0.2.5
Nov 30 08:51:46.500 INFO [stderr]     Checking sha1 v0.1.1
Nov 30 08:51:48.198 INFO [stderr]     Checking miow v0.1.5
Nov 30 08:51:49.151 INFO [stderr]     Checking mio v0.5.1
Nov 30 08:51:51.237 INFO [stderr]     Checking chat v0.1.0 (/source)
Nov 30 08:51:53.326 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.93s
Nov 30 08:51:53.330 INFO [stderr] su: No module specific data is present
Nov 30 08:51:54.709 INFO running `"docker" "inspect" "a176bccaae4981517c16a3e3d772363938e0779b7bed1bdca684c7137195c0cc"`
Nov 30 08:51:55.116 INFO running `"docker" "rm" "-f" "a176bccaae4981517c16a3e3d772363938e0779b7bed1bdca684c7137195c0cc"`
Nov 30 08:51:55.433 INFO [stdout] a176bccaae4981517c16a3e3d772363938e0779b7bed1bdca684c7137195c0cc