Dec 13 02:29:39.234 INFO testing spebern/poc1to2 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 02:29:39.234 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-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 13 02:29:39.615 INFO [stdout] eb0c37342ebcf8c15e93277897e2a8f057d97502d07fd6322df9c7c2eb51afba
Dec 13 02:29:39.620 INFO running `"docker" "start" "-a" "eb0c37342ebcf8c15e93277897e2a8f057d97502d07fd6322df9c7c2eb51afba"`
Dec 13 02:29:40.927 INFO [stderr] usermod: no changes
Dec 13 02:29:41.115 INFO [stderr]    Compiling clap v2.30.0
Dec 13 02:29:55.695 INFO [stderr]    Compiling poc1to2 v0.1.0 (/source)
Dec 13 02:29:56.947 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.99s
Dec 13 02:29:56.950 INFO [stderr] su: No module specific data is present
Dec 13 02:29:57.249 INFO running `"docker" "inspect" "eb0c37342ebcf8c15e93277897e2a8f057d97502d07fd6322df9c7c2eb51afba"`
Dec 13 02:29:57.448 INFO running `"docker" "rm" "-f" "eb0c37342ebcf8c15e93277897e2a8f057d97502d07fd6322df9c7c2eb51afba"`
Dec 13 02:29:57.554 INFO [stdout] eb0c37342ebcf8c15e93277897e2a8f057d97502d07fd6322df9c7c2eb51afba
Dec 13 02:29:57.556 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-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 13 02:29:57.848 INFO [stdout] 07f95777de3c4260c214b0c3aa6c8dec006d3c913ae2bbe99246eaeb54c27abe
Dec 13 02:29:57.853 INFO running `"docker" "start" "-a" "07f95777de3c4260c214b0c3aa6c8dec006d3c913ae2bbe99246eaeb54c27abe"`
Dec 13 02:29:58.394 INFO [stderr] usermod: no changes
Dec 13 02:29:58.412 INFO [stderr]    Compiling md5 v0.3.7
Dec 13 02:29:58.929 INFO [stderr]    Compiling poc1to2 v0.1.0 (/source)
Dec 13 02:29:59.267 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 02:29:59.267 INFO [stderr]    --> src/main.rs:175:9
Dec 13 02:29:59.267 INFO [stderr]     |
Dec 13 02:29:59.267 INFO [stderr] 175 |         fs::copy(plot_file.to_owned() + ".orig", plot_file);
Dec 13 02:29:59.267 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:29:59.267 INFO [stderr]     |
Dec 13 02:29:59.267 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 13 02:29:59.267 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 02:29:59.267 INFO [stderr] 
Dec 13 02:29:59.267 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 02:29:59.267 INFO [stderr]    --> src/main.rs:189:9
Dec 13 02:29:59.267 INFO [stderr]     |
Dec 13 02:29:59.267 INFO [stderr] 189 |         File::open(&poc2_plot_file).unwrap().read_to_end(&mut buffer);
Dec 13 02:29:59.267 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:29:59.267 INFO [stderr]     |
Dec 13 02:29:59.267 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 02:29:59.267 INFO [stderr] 
Dec 13 02:29:59.267 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 02:29:59.267 INFO [stderr]    --> src/main.rs:194:9
Dec 13 02:29:59.267 INFO [stderr]     |
Dec 13 02:29:59.267 INFO [stderr] 194 |         fs::remove_file(&poc2_plot_file);
Dec 13 02:29:59.267 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:29:59.267 INFO [stderr]     |
Dec 13 02:29:59.267 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 02:29:59.267 INFO [stderr] 
Dec 13 02:29:59.878 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
Dec 13 02:29:59.879 INFO [stderr] su: No module specific data is present
Dec 13 02:30:00.383 INFO running `"docker" "inspect" "07f95777de3c4260c214b0c3aa6c8dec006d3c913ae2bbe99246eaeb54c27abe"`
Dec 13 02:30:00.507 INFO running `"docker" "rm" "-f" "07f95777de3c4260c214b0c3aa6c8dec006d3c913ae2bbe99246eaeb54c27abe"`
Dec 13 02:30:00.607 INFO [stdout] 07f95777de3c4260c214b0c3aa6c8dec006d3c913ae2bbe99246eaeb54c27abe