Dec 06 04:57:46.808 INFO testing brandonpollack23/rust_wc against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 04:57:46.808 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 04:57:47.087 INFO [stdout] 37fbee10424607f305f4332dc9b6ba75aa22f5927b7f3bc68b7b37ccb398745a
Dec 06 04:57:47.089 INFO running `"docker" "start" "-a" "37fbee10424607f305f4332dc9b6ba75aa22f5927b7f3bc68b7b37ccb398745a"`
Dec 06 04:57:47.886 INFO [stderr] usermod: no changes
Dec 06 04:57:47.976 INFO [stderr]    Compiling clap v2.32.0
Dec 06 04:58:00.352 INFO [stderr]    Compiling rust_wc v0.1.0 (/source)
Dec 06 04:58:00.704 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:58:00.704 INFO [stderr]   --> src/word_count.rs:35:13
Dec 06 04:58:00.704 INFO [stderr]    |
Dec 06 04:58:00.704 INFO [stderr] 35 |             write!(&mut output, "{} ", self.lines);
Dec 06 04:58:00.704 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:58:00.704 INFO [stderr]    |
Dec 06 04:58:00.704 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 04:58:00.704 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:58:00.704 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 06 04:58:00.704 INFO [stderr] 
Dec 06 04:58:00.704 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:58:00.704 INFO [stderr]   --> src/word_count.rs:38:13
Dec 06 04:58:00.704 INFO [stderr]    |
Dec 06 04:58:00.704 INFO [stderr] 38 |             write!(&mut output, "{} ", self.words);
Dec 06 04:58:00.704 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:58:00.704 INFO [stderr]    |
Dec 06 04:58:00.704 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:58:00.704 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 06 04:58:00.704 INFO [stderr] 
Dec 06 04:58:00.704 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:58:00.704 INFO [stderr]   --> src/word_count.rs:41:13
Dec 06 04:58:00.704 INFO [stderr]    |
Dec 06 04:58:00.704 INFO [stderr] 41 |             write!(&mut output, "{} ", self.bytes);
Dec 06 04:58:00.704 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:58:00.704 INFO [stderr]    |
Dec 06 04:58:00.704 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:58:00.704 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 06 04:58:00.704 INFO [stderr] 
Dec 06 04:58:00.704 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:58:00.704 INFO [stderr]   --> src/word_count.rs:44:13
Dec 06 04:58:00.704 INFO [stderr]    |
Dec 06 04:58:00.704 INFO [stderr] 44 |             write!(&mut output, "{} ", self.chars);
Dec 06 04:58:00.704 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:58:00.704 INFO [stderr]    |
Dec 06 04:58:00.704 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:58:00.704 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 06 04:58:00.704 INFO [stderr] 
Dec 06 04:58:00.704 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:58:00.704 INFO [stderr]   --> src/word_count.rs:47:13
Dec 06 04:58:00.704 INFO [stderr]    |
Dec 06 04:58:00.704 INFO [stderr] 47 |             write!(&mut output, "{} ", self.max_length);
Dec 06 04:58:00.704 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:58:00.704 INFO [stderr]    |
Dec 06 04:58:00.704 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:58:00.704 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 06 04:58:00.705 INFO [stderr] 
Dec 06 04:58:01.701 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.78s
Dec 06 04:58:01.706 INFO [stderr] su: No module specific data is present
Dec 06 04:58:02.005 INFO running `"docker" "inspect" "37fbee10424607f305f4332dc9b6ba75aa22f5927b7f3bc68b7b37ccb398745a"`
Dec 06 04:58:02.093 INFO running `"docker" "rm" "-f" "37fbee10424607f305f4332dc9b6ba75aa22f5927b7f3bc68b7b37ccb398745a"`
Dec 06 04:58:02.191 INFO [stdout] 37fbee10424607f305f4332dc9b6ba75aa22f5927b7f3bc68b7b37ccb398745a
Dec 06 04:58:02.196 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 04:58:02.387 INFO [stdout] ece65dffb3f00e6b305b8452ec1f3e910c606ac682fcd00b5cea8f27d94d5ae7
Dec 06 04:58:02.390 INFO running `"docker" "start" "-a" "ece65dffb3f00e6b305b8452ec1f3e910c606ac682fcd00b5cea8f27d94d5ae7"`
Dec 06 04:58:02.841 INFO [stderr] usermod: no changes
Dec 06 04:58:02.899 INFO [stderr]    Compiling rust_wc v0.1.0 (/source)
Dec 06 04:58:03.265 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:58:03.265 INFO [stderr]   --> src/word_count.rs:35:13
Dec 06 04:58:03.265 INFO [stderr]    |
Dec 06 04:58:03.265 INFO [stderr] 35 |             write!(&mut output, "{} ", self.lines);
Dec 06 04:58:03.265 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:58:03.265 INFO [stderr]    |
Dec 06 04:58:03.265 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 04:58:03.265 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:58:03.265 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 06 04:58:03.265 INFO [stderr] 
Dec 06 04:58:03.265 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:58:03.265 INFO [stderr]   --> src/word_count.rs:38:13
Dec 06 04:58:03.265 INFO [stderr]    |
Dec 06 04:58:03.265 INFO [stderr] 38 |             write!(&mut output, "{} ", self.words);
Dec 06 04:58:03.265 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:58:03.265 INFO [stderr]    |
Dec 06 04:58:03.265 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:58:03.272 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 06 04:58:03.272 INFO [stderr] 
Dec 06 04:58:03.272 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:58:03.272 INFO [stderr]   --> src/word_count.rs:41:13
Dec 06 04:58:03.272 INFO [stderr]    |
Dec 06 04:58:03.272 INFO [stderr] 41 |             write!(&mut output, "{} ", self.bytes);
Dec 06 04:58:03.272 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:58:03.272 INFO [stderr]    |
Dec 06 04:58:03.272 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:58:03.272 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 06 04:58:03.272 INFO [stderr] 
Dec 06 04:58:03.272 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:58:03.272 INFO [stderr]   --> src/word_count.rs:44:13
Dec 06 04:58:03.272 INFO [stderr]    |
Dec 06 04:58:03.272 INFO [stderr] 44 |             write!(&mut output, "{} ", self.chars);
Dec 06 04:58:03.272 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:58:03.272 INFO [stderr]    |
Dec 06 04:58:03.273 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:58:03.273 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 06 04:58:03.273 INFO [stderr] 
Dec 06 04:58:03.273 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:58:03.273 INFO [stderr]   --> src/word_count.rs:47:13
Dec 06 04:58:03.273 INFO [stderr]    |
Dec 06 04:58:03.273 INFO [stderr] 47 |             write!(&mut output, "{} ", self.max_length);
Dec 06 04:58:03.273 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:58:03.273 INFO [stderr]    |
Dec 06 04:58:03.273 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:58:03.273 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 06 04:58:03.273 INFO [stderr] 
Dec 06 04:58:03.562 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
Dec 06 04:58:03.566 INFO [stderr] su: No module specific data is present
Dec 06 04:58:04.014 INFO running `"docker" "inspect" "ece65dffb3f00e6b305b8452ec1f3e910c606ac682fcd00b5cea8f27d94d5ae7"`
Dec 06 04:58:04.118 INFO running `"docker" "rm" "-f" "ece65dffb3f00e6b305b8452ec1f3e910c606ac682fcd00b5cea8f27d94d5ae7"`
Dec 06 04:58:04.313 INFO [stdout] ece65dffb3f00e6b305b8452ec1f3e910c606ac682fcd00b5cea8f27d94d5ae7
Dec 06 04:58:04.317 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 04:58:04.710 INFO [stdout] 11be4d7807c1bde86cb22171924862101018e156182d1ee0388994d47941725f
Dec 06 04:58:04.712 INFO running `"docker" "start" "-a" "11be4d7807c1bde86cb22171924862101018e156182d1ee0388994d47941725f"`
Dec 06 04:58:06.306 INFO [stderr] usermod: no changes
Dec 06 04:58:06.404 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
Dec 06 04:58:06.416 INFO [stderr]      Running /target/debug/deps/rust_wc-69bac00fc902dc6e
Dec 06 04:58:06.424 INFO [stdout] 
Dec 06 04:58:06.424 INFO [stdout] running 0 tests
Dec 06 04:58:06.424 INFO [stdout] 
Dec 06 04:58:06.424 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 04:58:06.424 INFO [stdout] 
Dec 06 04:58:06.424 INFO [stderr] su: No module specific data is present
Dec 06 04:58:07.346 INFO running `"docker" "inspect" "11be4d7807c1bde86cb22171924862101018e156182d1ee0388994d47941725f"`
Dec 06 04:58:07.638 INFO running `"docker" "rm" "-f" "11be4d7807c1bde86cb22171924862101018e156182d1ee0388994d47941725f"`
Dec 06 04:58:07.908 INFO [stdout] 11be4d7807c1bde86cb22171924862101018e156182d1ee0388994d47941725f