Dec 11 09:04:41.004 INFO checking spebern/poc1to2 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 09:04:41.004 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 09:04:41.396 INFO [stdout] e23fca0c71c38563c0f303ed9228bacba8162a26411929c60008940df5b14d97
Dec 11 09:04:41.406 INFO running `"docker" "start" "-a" "e23fca0c71c38563c0f303ed9228bacba8162a26411929c60008940df5b14d97"`
Dec 11 09:04:42.629 INFO [stderr] usermod: no changes
Dec 11 09:04:42.760 INFO [stderr]     Checking clap v2.30.0
Dec 11 09:04:47.137 INFO [stderr]     Checking poc1to2 v0.1.0 (/source)
Dec 11 09:04:47.528 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 09:04:47.528 INFO [stderr]    --> src/main.rs:175:9
Dec 11 09:04:47.528 INFO [stderr]     |
Dec 11 09:04:47.528 INFO [stderr] 175 |         fs::copy(plot_file.to_owned() + ".orig", plot_file);
Dec 11 09:04:47.528 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:04:47.528 INFO [stderr]     |
Dec 11 09:04:47.528 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 09:04:47.528 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 09:04:47.528 INFO [stderr] 
Dec 11 09:04:47.528 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 09:04:47.528 INFO [stderr]    --> src/main.rs:189:9
Dec 11 09:04:47.528 INFO [stderr]     |
Dec 11 09:04:47.528 INFO [stderr] 189 |         File::open(&poc2_plot_file).unwrap().read_to_end(&mut buffer);
Dec 11 09:04:47.528 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:04:47.528 INFO [stderr]     |
Dec 11 09:04:47.528 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 09:04:47.528 INFO [stderr] 
Dec 11 09:04:47.528 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 09:04:47.528 INFO [stderr]    --> src/main.rs:194:9
Dec 11 09:04:47.528 INFO [stderr]     |
Dec 11 09:04:47.528 INFO [stderr] 194 |         fs::remove_file(&poc2_plot_file);
Dec 11 09:04:47.528 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:04:47.528 INFO [stderr]     |
Dec 11 09:04:47.528 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 09:04:47.528 INFO [stderr] 
Dec 11 09:04:47.543 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.88s
Dec 11 09:04:47.546 INFO [stderr] su: No module specific data is present
Dec 11 09:04:47.969 INFO running `"docker" "inspect" "e23fca0c71c38563c0f303ed9228bacba8162a26411929c60008940df5b14d97"`
Dec 11 09:04:48.118 INFO running `"docker" "rm" "-f" "e23fca0c71c38563c0f303ed9228bacba8162a26411929c60008940df5b14d97"`
Dec 11 09:04:48.246 INFO [stdout] e23fca0c71c38563c0f303ed9228bacba8162a26411929c60008940df5b14d97