Dec 19 08:21:15.036 INFO checking spebern/poc1to2 against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 08:21:15.036 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/spebern/poc1to2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 08:21:15.476 INFO [stdout] e00857341339eac279639bd6ccb7b8b2011405ca2b32dc64e9129eb2163b4afe
Dec 19 08:21:15.488 INFO running `"docker" "start" "-a" "e00857341339eac279639bd6ccb7b8b2011405ca2b32dc64e9129eb2163b4afe"`
Dec 19 08:21:16.850 INFO [stderr]     Checking clap v2.30.0
Dec 19 08:21:21.316 INFO [stderr]     Checking poc1to2 v0.1.0 (/opt/crater/workdir)
Dec 19 08:21:21.836 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 08:21:21.836 INFO [stderr]    --> src/main.rs:175:9
Dec 19 08:21:21.836 INFO [stderr]     |
Dec 19 08:21:21.836 INFO [stderr] 175 |         fs::copy(plot_file.to_owned() + ".orig", plot_file);
Dec 19 08:21:21.836 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:21:21.836 INFO [stderr]     |
Dec 19 08:21:21.836 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 08:21:21.836 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 08:21:21.836 INFO [stderr] 
Dec 19 08:21:21.836 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 08:21:21.836 INFO [stderr]    --> src/main.rs:189:9
Dec 19 08:21:21.836 INFO [stderr]     |
Dec 19 08:21:21.836 INFO [stderr] 189 |         File::open(&poc2_plot_file).unwrap().read_to_end(&mut buffer);
Dec 19 08:21:21.836 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:21:21.836 INFO [stderr]     |
Dec 19 08:21:21.836 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 08:21:21.836 INFO [stderr] 
Dec 19 08:21:21.836 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 08:21:21.837 INFO [stderr]    --> src/main.rs:194:9
Dec 19 08:21:21.837 INFO [stderr]     |
Dec 19 08:21:21.837 INFO [stderr] 194 |         fs::remove_file(&poc2_plot_file);
Dec 19 08:21:21.837 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:21:21.837 INFO [stderr]     |
Dec 19 08:21:21.837 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 08:21:21.837 INFO [stderr] 
Dec 19 08:21:21.872 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.10s
Dec 19 08:21:22.744 INFO running `"docker" "inspect" "e00857341339eac279639bd6ccb7b8b2011405ca2b32dc64e9129eb2163b4afe"`
Dec 19 08:21:23.014 INFO running `"docker" "rm" "-f" "e00857341339eac279639bd6ccb7b8b2011405ca2b32dc64e9129eb2163b4afe"`
Dec 19 08:21:23.309 INFO [stdout] e00857341339eac279639bd6ccb7b8b2011405ca2b32dc64e9129eb2163b4afe