Dec 11 20:47:22.736 INFO checking ckafi/penandink against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 20:47:22.736 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 11 20:47:23.185 INFO [stdout] 72fa10df2cffdd7a174f9e0cbabd44a6192a7c834c466cd743b3f4ed34689dbf
Dec 11 20:47:23.187 INFO running `"docker" "start" "-a" "72fa10df2cffdd7a174f9e0cbabd44a6192a7c834c466cd743b3f4ed34689dbf"`
Dec 11 20:47:25.452 INFO [stderr] usermod: no changes
Dec 11 20:47:25.564 INFO [stderr]     Checking csv v0.15.0
Dec 11 20:47:26.592 INFO [stderr]     Checking penandink v0.1.0 (/source)
Dec 11 20:47:27.322 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 20:47:27.322 INFO [stderr]   --> src/main.rs:34:9
Dec 11 20:47:27.322 INFO [stderr]    |
Dec 11 20:47:27.323 INFO [stderr] 34 |         io::stdout().flush();
Dec 11 20:47:27.323 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 11 20:47:27.323 INFO [stderr]    |
Dec 11 20:47:27.323 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 20:47:27.323 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 20:47:27.323 INFO [stderr] 
Dec 11 20:47:27.528 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 20:47:27.528 INFO [stderr]   --> src/main.rs:34:9
Dec 11 20:47:27.528 INFO [stderr]    |
Dec 11 20:47:27.528 INFO [stderr] 34 |         io::stdout().flush();
Dec 11 20:47:27.528 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 11 20:47:27.528 INFO [stderr]    |
Dec 11 20:47:27.528 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 20:47:27.528 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 20:47:27.528 INFO [stderr] 
Dec 11 20:47:27.568 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
Dec 11 20:47:27.580 INFO [stderr] su: No module specific data is present
Dec 11 20:47:28.188 INFO running `"docker" "inspect" "72fa10df2cffdd7a174f9e0cbabd44a6192a7c834c466cd743b3f4ed34689dbf"`
Dec 11 20:47:28.446 INFO running `"docker" "rm" "-f" "72fa10df2cffdd7a174f9e0cbabd44a6192a7c834c466cd743b3f4ed34689dbf"`
Dec 11 20:47:28.695 INFO [stdout] 72fa10df2cffdd7a174f9e0cbabd44a6192a7c834c466cd743b3f4ed34689dbf