Dec 14 00:50:12.804 INFO testing brandonpollack23/rust_wc against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 14 00:50:12.804 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 14 00:50:13.153 INFO [stdout] 394584ffe6b4dab4fb98383bf7bd54ca0e2ca4a284a26cb8bd2e7ee4c343ec53
Dec 14 00:50:13.155 INFO running `"docker" "start" "-a" "394584ffe6b4dab4fb98383bf7bd54ca0e2ca4a284a26cb8bd2e7ee4c343ec53"`
Dec 14 00:50:14.455 INFO [stderr] usermod: no changes
Dec 14 00:50:14.567 INFO [stderr]    Compiling rust_wc v0.1.0 (/source)
Dec 14 00:50:15.799 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:50:15.799 INFO [stderr]   --> src/word_count.rs:35:13
Dec 14 00:50:15.799 INFO [stderr]    |
Dec 14 00:50:15.799 INFO [stderr] 35 |             write!(&mut output, "{} ", self.lines);
Dec 14 00:50:15.799 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:50:15.799 INFO [stderr]    |
Dec 14 00:50:15.799 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 14 00:50:15.799 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:50:15.799 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)
Dec 14 00:50:15.799 INFO [stderr] 
Dec 14 00:50:15.799 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:50:15.799 INFO [stderr]   --> src/word_count.rs:38:13
Dec 14 00:50:15.799 INFO [stderr]    |
Dec 14 00:50:15.799 INFO [stderr] 38 |             write!(&mut output, "{} ", self.words);
Dec 14 00:50:15.799 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:50:15.799 INFO [stderr]    |
Dec 14 00:50:15.799 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:50:15.799 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)
Dec 14 00:50:15.799 INFO [stderr] 
Dec 14 00:50:15.799 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:50:15.799 INFO [stderr]   --> src/word_count.rs:41:13
Dec 14 00:50:15.799 INFO [stderr]    |
Dec 14 00:50:15.799 INFO [stderr] 41 |             write!(&mut output, "{} ", self.bytes);
Dec 14 00:50:15.799 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:50:15.799 INFO [stderr]    |
Dec 14 00:50:15.799 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:50:15.799 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)
Dec 14 00:50:15.799 INFO [stderr] 
Dec 14 00:50:15.799 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:50:15.799 INFO [stderr]   --> src/word_count.rs:44:13
Dec 14 00:50:15.799 INFO [stderr]    |
Dec 14 00:50:15.799 INFO [stderr] 44 |             write!(&mut output, "{} ", self.chars);
Dec 14 00:50:15.799 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:50:15.799 INFO [stderr]    |
Dec 14 00:50:15.799 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:50:15.799 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)
Dec 14 00:50:15.799 INFO [stderr] 
Dec 14 00:50:15.799 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:50:15.799 INFO [stderr]   --> src/word_count.rs:47:13
Dec 14 00:50:15.799 INFO [stderr]    |
Dec 14 00:50:15.799 INFO [stderr] 47 |             write!(&mut output, "{} ", self.max_length);
Dec 14 00:50:15.799 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:50:15.799 INFO [stderr]    |
Dec 14 00:50:15.799 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:50:15.799 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)
Dec 14 00:50:15.799 INFO [stderr] 
Dec 14 00:50:17.539 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.05s
Dec 14 00:50:17.543 INFO [stderr] su: No module specific data is present
Dec 14 00:50:18.838 INFO running `"docker" "inspect" "394584ffe6b4dab4fb98383bf7bd54ca0e2ca4a284a26cb8bd2e7ee4c343ec53"`
Dec 14 00:50:19.163 INFO running `"docker" "rm" "-f" "394584ffe6b4dab4fb98383bf7bd54ca0e2ca4a284a26cb8bd2e7ee4c343ec53"`
Dec 14 00:50:19.384 INFO [stdout] 394584ffe6b4dab4fb98383bf7bd54ca0e2ca4a284a26cb8bd2e7ee4c343ec53
Dec 14 00:50:19.391 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 14 00:50:19.871 INFO [stdout] 3ed48cd4ccb95999845d8f4bc30f8ee446918f34e76edf7e17728603b0cdc93e
Dec 14 00:50:19.879 INFO running `"docker" "start" "-a" "3ed48cd4ccb95999845d8f4bc30f8ee446918f34e76edf7e17728603b0cdc93e"`
Dec 14 00:50:20.775 INFO [stderr] usermod: no changes
Dec 14 00:50:20.874 INFO [stderr]    Compiling rust_wc v0.1.0 (/source)
Dec 14 00:50:21.690 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:50:21.690 INFO [stderr]   --> src/word_count.rs:35:13
Dec 14 00:50:21.690 INFO [stderr]    |
Dec 14 00:50:21.690 INFO [stderr] 35 |             write!(&mut output, "{} ", self.lines);
Dec 14 00:50:21.690 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:50:21.690 INFO [stderr]    |
Dec 14 00:50:21.690 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 14 00:50:21.690 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:50:21.690 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)
Dec 14 00:50:21.690 INFO [stderr] 
Dec 14 00:50:21.690 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:50:21.690 INFO [stderr]   --> src/word_count.rs:38:13
Dec 14 00:50:21.690 INFO [stderr]    |
Dec 14 00:50:21.690 INFO [stderr] 38 |             write!(&mut output, "{} ", self.words);
Dec 14 00:50:21.690 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:50:21.690 INFO [stderr]    |
Dec 14 00:50:21.690 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:50:21.690 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)
Dec 14 00:50:21.691 INFO [stderr] 
Dec 14 00:50:21.691 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:50:21.691 INFO [stderr]   --> src/word_count.rs:41:13
Dec 14 00:50:21.691 INFO [stderr]    |
Dec 14 00:50:21.691 INFO [stderr] 41 |             write!(&mut output, "{} ", self.bytes);
Dec 14 00:50:21.691 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:50:21.691 INFO [stderr]    |
Dec 14 00:50:21.691 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:50:21.691 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)
Dec 14 00:50:21.691 INFO [stderr] 
Dec 14 00:50:21.691 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:50:21.691 INFO [stderr]   --> src/word_count.rs:44:13
Dec 14 00:50:21.691 INFO [stderr]    |
Dec 14 00:50:21.691 INFO [stderr] 44 |             write!(&mut output, "{} ", self.chars);
Dec 14 00:50:21.691 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:50:21.779 INFO [stderr]    |
Dec 14 00:50:21.779 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:50:21.779 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)
Dec 14 00:50:21.779 INFO [stderr] 
Dec 14 00:50:21.779 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:50:21.779 INFO [stderr]   --> src/word_count.rs:47:13
Dec 14 00:50:21.779 INFO [stderr]    |
Dec 14 00:50:21.779 INFO [stderr] 47 |             write!(&mut output, "{} ", self.max_length);
Dec 14 00:50:21.779 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:50:21.779 INFO [stderr]    |
Dec 14 00:50:21.779 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:50:21.779 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)
Dec 14 00:50:21.779 INFO [stderr] 
Dec 14 00:50:21.982 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
Dec 14 00:50:21.986 INFO [stderr] su: No module specific data is present
Dec 14 00:50:22.582 INFO running `"docker" "inspect" "3ed48cd4ccb95999845d8f4bc30f8ee446918f34e76edf7e17728603b0cdc93e"`
Dec 14 00:50:22.768 INFO running `"docker" "rm" "-f" "3ed48cd4ccb95999845d8f4bc30f8ee446918f34e76edf7e17728603b0cdc93e"`
Dec 14 00:50:23.042 INFO [stdout] 3ed48cd4ccb95999845d8f4bc30f8ee446918f34e76edf7e17728603b0cdc93e
Dec 14 00:50:23.051 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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"`
Dec 14 00:50:23.441 INFO [stdout] 747eab1ed6a9304dfdef2d49eb02eb960baf35fbf9db5765d49a03d26dc0a22f
Dec 14 00:50:23.444 INFO running `"docker" "start" "-a" "747eab1ed6a9304dfdef2d49eb02eb960baf35fbf9db5765d49a03d26dc0a22f"`
Dec 14 00:50:24.406 INFO [stderr] usermod: no changes
Dec 14 00:50:24.523 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
Dec 14 00:50:24.539 INFO [stderr]      Running /target/debug/deps/rust_wc-4b71c1bb7cb40891
Dec 14 00:50:24.543 INFO [stdout] 
Dec 14 00:50:24.543 INFO [stdout] running 0 tests
Dec 14 00:50:24.543 INFO [stdout] 
Dec 14 00:50:24.543 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 00:50:24.543 INFO [stdout] 
Dec 14 00:50:24.543 INFO [stderr] su: No module specific data is present
Dec 14 00:50:25.337 INFO running `"docker" "inspect" "747eab1ed6a9304dfdef2d49eb02eb960baf35fbf9db5765d49a03d26dc0a22f"`
Dec 14 00:50:25.851 INFO running `"docker" "rm" "-f" "747eab1ed6a9304dfdef2d49eb02eb960baf35fbf9db5765d49a03d26dc0a22f"`
Dec 14 00:50:26.155 INFO [stdout] 747eab1ed6a9304dfdef2d49eb02eb960baf35fbf9db5765d49a03d26dc0a22f