Nov 17 07:39:55.700 INFO testing brandonpollack23/rust_wc against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 17 07:39:55.700 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 07:39:56.179 INFO [stdout] 4414c30c232efd1e0c1d49a648ccb3e70341c0b7fd27522f317c95e71f948dea
Nov 17 07:39:56.187 INFO running `"docker" "start" "-a" "4414c30c232efd1e0c1d49a648ccb3e70341c0b7fd27522f317c95e71f948dea"`
Nov 17 07:39:57.551 INFO [stderr] usermod: no changes
Nov 17 07:39:57.633 INFO [stderr]    Compiling clap v2.32.0
Nov 17 07:40:12.163 INFO [stderr]    Compiling rust_wc v0.1.0 (/source)
Nov 17 07:40:13.059 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 07:40:13.059 INFO [stderr]   --> src/word_count.rs:35:13
Nov 17 07:40:13.059 INFO [stderr]    |
Nov 17 07:40:13.059 INFO [stderr] 35 |             write!(&mut output, "{} ", self.lines);
Nov 17 07:40:13.059 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 07:40:13.059 INFO [stderr]    |
Nov 17 07:40:13.059 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 17 07:40:13.059 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 07:40:13.059 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 07:40:13.059 INFO [stderr] 
Nov 17 07:40:13.059 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 07:40:13.059 INFO [stderr]   --> src/word_count.rs:38:13
Nov 17 07:40:13.059 INFO [stderr]    |
Nov 17 07:40:13.059 INFO [stderr] 38 |             write!(&mut output, "{} ", self.words);
Nov 17 07:40:13.059 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 07:40:13.059 INFO [stderr]    |
Nov 17 07:40:13.059 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 07:40:13.059 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 07:40:13.059 INFO [stderr] 
Nov 17 07:40:13.059 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 07:40:13.059 INFO [stderr]   --> src/word_count.rs:41:13
Nov 17 07:40:13.059 INFO [stderr]    |
Nov 17 07:40:13.059 INFO [stderr] 41 |             write!(&mut output, "{} ", self.bytes);
Nov 17 07:40:13.059 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 07:40:13.059 INFO [stderr]    |
Nov 17 07:40:13.059 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 07:40:13.059 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 07:40:13.059 INFO [stderr] 
Nov 17 07:40:13.059 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 07:40:13.059 INFO [stderr]   --> src/word_count.rs:44:13
Nov 17 07:40:13.059 INFO [stderr]    |
Nov 17 07:40:13.059 INFO [stderr] 44 |             write!(&mut output, "{} ", self.chars);
Nov 17 07:40:13.059 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 07:40:13.059 INFO [stderr]    |
Nov 17 07:40:13.059 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 07:40:13.059 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 07:40:13.059 INFO [stderr] 
Nov 17 07:40:13.059 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 07:40:13.059 INFO [stderr]   --> src/word_count.rs:47:13
Nov 17 07:40:13.059 INFO [stderr]    |
Nov 17 07:40:13.059 INFO [stderr] 47 |             write!(&mut output, "{} ", self.max_length);
Nov 17 07:40:13.060 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 07:40:13.060 INFO [stderr]    |
Nov 17 07:40:13.060 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 07:40:13.060 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 07:40:13.060 INFO [stderr] 
Nov 17 07:40:14.398 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.83s
Nov 17 07:40:14.407 INFO [stderr] su: No module specific data is present
Nov 17 07:40:15.353 INFO running `"docker" "inspect" "4414c30c232efd1e0c1d49a648ccb3e70341c0b7fd27522f317c95e71f948dea"`
Nov 17 07:40:15.731 INFO running `"docker" "rm" "-f" "4414c30c232efd1e0c1d49a648ccb3e70341c0b7fd27522f317c95e71f948dea"`
Nov 17 07:40:16.042 INFO [stdout] 4414c30c232efd1e0c1d49a648ccb3e70341c0b7fd27522f317c95e71f948dea
Nov 17 07:40:16.047 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 07:40:16.459 INFO [stdout] ff7bc57b740a144120eab6a04d2ec3d838e1aea713c13b3bc50ed22f3b5a656f
Nov 17 07:40:16.465 INFO running `"docker" "start" "-a" "ff7bc57b740a144120eab6a04d2ec3d838e1aea713c13b3bc50ed22f3b5a656f"`
Nov 17 07:40:17.674 INFO [stderr] usermod: no changes
Nov 17 07:40:17.859 INFO [stderr]    Compiling rust_wc v0.1.0 (/source)
Nov 17 07:40:18.767 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 07:40:18.767 INFO [stderr]   --> src/word_count.rs:35:13
Nov 17 07:40:18.768 INFO [stderr]    |
Nov 17 07:40:18.768 INFO [stderr] 35 |             write!(&mut output, "{} ", self.lines);
Nov 17 07:40:18.768 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 07:40:18.769 INFO [stderr]    |
Nov 17 07:40:18.769 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 17 07:40:18.769 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 07:40:18.769 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 07:40:18.770 INFO [stderr] 
Nov 17 07:40:18.770 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 07:40:18.770 INFO [stderr]   --> src/word_count.rs:38:13
Nov 17 07:40:18.770 INFO [stderr]    |
Nov 17 07:40:18.771 INFO [stderr] 38 |             write!(&mut output, "{} ", self.words);
Nov 17 07:40:18.771 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 07:40:18.771 INFO [stderr]    |
Nov 17 07:40:18.772 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 07:40:18.772 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 07:40:18.772 INFO [stderr] 
Nov 17 07:40:18.773 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 07:40:18.773 INFO [stderr]   --> src/word_count.rs:41:13
Nov 17 07:40:18.773 INFO [stderr]    |
Nov 17 07:40:18.773 INFO [stderr] 41 |             write!(&mut output, "{} ", self.bytes);
Nov 17 07:40:18.774 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 07:40:18.774 INFO [stderr]    |
Nov 17 07:40:18.774 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 07:40:18.774 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 07:40:18.775 INFO [stderr] 
Nov 17 07:40:18.775 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 07:40:18.775 INFO [stderr]   --> src/word_count.rs:44:13
Nov 17 07:40:18.776 INFO [stderr]    |
Nov 17 07:40:18.776 INFO [stderr] 44 |             write!(&mut output, "{} ", self.chars);
Nov 17 07:40:18.776 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 07:40:18.776 INFO [stderr]    |
Nov 17 07:40:18.777 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 07:40:18.777 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 07:40:18.777 INFO [stderr] 
Nov 17 07:40:18.777 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 07:40:18.778 INFO [stderr]   --> src/word_count.rs:47:13
Nov 17 07:40:18.778 INFO [stderr]    |
Nov 17 07:40:18.778 INFO [stderr] 47 |             write!(&mut output, "{} ", self.max_length);
Nov 17 07:40:18.779 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 07:40:18.779 INFO [stderr]    |
Nov 17 07:40:18.779 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 07:40:18.779 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 07:40:18.780 INFO [stderr] 
Nov 17 07:40:19.199 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
Nov 17 07:40:19.199 INFO [stderr] su: No module specific data is present
Nov 17 07:40:20.059 INFO running `"docker" "inspect" "ff7bc57b740a144120eab6a04d2ec3d838e1aea713c13b3bc50ed22f3b5a656f"`
Nov 17 07:40:20.314 INFO running `"docker" "rm" "-f" "ff7bc57b740a144120eab6a04d2ec3d838e1aea713c13b3bc50ed22f3b5a656f"`
Nov 17 07:40:20.615 INFO [stdout] ff7bc57b740a144120eab6a04d2ec3d838e1aea713c13b3bc50ed22f3b5a656f
Nov 17 07:40:20.619 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt test --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"`
Nov 17 07:40:21.093 INFO [stdout] 13d3cfbabc7ba90ad8181c386d868e8678d230edbd2c0ceb556c6fe462a153f1
Nov 17 07:40:21.094 INFO running `"docker" "start" "-a" "13d3cfbabc7ba90ad8181c386d868e8678d230edbd2c0ceb556c6fe462a153f1"`
Nov 17 07:40:22.519 INFO [stderr] usermod: no changes
Nov 17 07:40:22.595 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Nov 17 07:40:22.603 INFO [stderr]      Running /target/debug/deps/rust_wc-52a51c52d2dae453
Nov 17 07:40:22.608 INFO [stdout] 
Nov 17 07:40:22.608 INFO [stdout] running 0 tests
Nov 17 07:40:22.608 INFO [stdout] 
Nov 17 07:40:22.608 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 07:40:22.608 INFO [stdout] 
Nov 17 07:40:22.611 INFO [stderr] su: No module specific data is present
Nov 17 07:40:23.133 INFO running `"docker" "inspect" "13d3cfbabc7ba90ad8181c386d868e8678d230edbd2c0ceb556c6fe462a153f1"`
Nov 17 07:40:23.399 INFO running `"docker" "rm" "-f" "13d3cfbabc7ba90ad8181c386d868e8678d230edbd2c0ceb556c6fe462a153f1"`
Nov 17 07:40:23.715 INFO [stdout] 13d3cfbabc7ba90ad8181c386d868e8678d230edbd2c0ceb556c6fe462a153f1