Dec 06 04:57:34.512 INFO testing brandonpollack23/rust_wc against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 04:57:34.512 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 04:57:34.896 INFO [stdout] e750fa8e46fa65bbd0e9d8d4e21e059710f446e7ff8051650f3050b4d2b13f06
Dec 06 04:57:34.900 INFO running `"docker" "start" "-a" "e750fa8e46fa65bbd0e9d8d4e21e059710f446e7ff8051650f3050b4d2b13f06"`
Dec 06 04:57:36.151 INFO [stderr] usermod: no changes
Dec 06 04:57:36.288 INFO [stderr]    Compiling rust_wc v0.1.0 (/source)
Dec 06 04:57:37.336 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:57:37.336 INFO [stderr]   --> src/word_count.rs:35:13
Dec 06 04:57:37.336 INFO [stderr]    |
Dec 06 04:57:37.336 INFO [stderr] 35 |             write!(&mut output, "{} ", self.lines);
Dec 06 04:57:37.336 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:57:37.336 INFO [stderr]    |
Dec 06 04:57:37.336 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 04:57:37.336 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:57:37.336 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 04:57:37.336 INFO [stderr] 
Dec 06 04:57:37.336 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:57:37.336 INFO [stderr]   --> src/word_count.rs:38:13
Dec 06 04:57:37.336 INFO [stderr]    |
Dec 06 04:57:37.336 INFO [stderr] 38 |             write!(&mut output, "{} ", self.words);
Dec 06 04:57:37.336 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:57:37.336 INFO [stderr]    |
Dec 06 04:57:37.336 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:57:37.336 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 04:57:37.336 INFO [stderr] 
Dec 06 04:57:37.336 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:57:37.336 INFO [stderr]   --> src/word_count.rs:41:13
Dec 06 04:57:37.336 INFO [stderr]    |
Dec 06 04:57:37.336 INFO [stderr] 41 |             write!(&mut output, "{} ", self.bytes);
Dec 06 04:57:37.336 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:57:37.337 INFO [stderr]    |
Dec 06 04:57:37.337 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:57:37.337 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 04:57:37.337 INFO [stderr] 
Dec 06 04:57:37.337 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:57:37.337 INFO [stderr]   --> src/word_count.rs:44:13
Dec 06 04:57:37.337 INFO [stderr]    |
Dec 06 04:57:37.337 INFO [stderr] 44 |             write!(&mut output, "{} ", self.chars);
Dec 06 04:57:37.337 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:57:37.337 INFO [stderr]    |
Dec 06 04:57:37.337 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:57:37.337 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 04:57:37.337 INFO [stderr] 
Dec 06 04:57:37.337 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:57:37.337 INFO [stderr]   --> src/word_count.rs:47:13
Dec 06 04:57:37.337 INFO [stderr]    |
Dec 06 04:57:37.337 INFO [stderr] 47 |             write!(&mut output, "{} ", self.max_length);
Dec 06 04:57:37.337 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:57:37.337 INFO [stderr]    |
Dec 06 04:57:37.337 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:57:37.337 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 04:57:37.337 INFO [stderr] 
Dec 06 04:57:38.805 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.61s
Dec 06 04:57:38.811 INFO [stderr] su: No module specific data is present
Dec 06 04:57:39.624 INFO running `"docker" "inspect" "e750fa8e46fa65bbd0e9d8d4e21e059710f446e7ff8051650f3050b4d2b13f06"`
Dec 06 04:57:39.924 INFO running `"docker" "rm" "-f" "e750fa8e46fa65bbd0e9d8d4e21e059710f446e7ff8051650f3050b4d2b13f06"`
Dec 06 04:57:40.246 INFO [stdout] e750fa8e46fa65bbd0e9d8d4e21e059710f446e7ff8051650f3050b4d2b13f06
Dec 06 04:57:40.256 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 04:57:40.866 INFO [stdout] 5f80e84b6bc2eca5c5f0cfb2af110598c3fec00c9b5289ceee15004256a86375
Dec 06 04:57:40.868 INFO running `"docker" "start" "-a" "5f80e84b6bc2eca5c5f0cfb2af110598c3fec00c9b5289ceee15004256a86375"`
Dec 06 04:57:42.933 INFO [stderr] usermod: no changes
Dec 06 04:57:43.045 INFO [stderr]    Compiling rust_wc v0.1.0 (/source)
Dec 06 04:57:43.892 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:57:43.892 INFO [stderr]   --> src/word_count.rs:35:13
Dec 06 04:57:43.892 INFO [stderr]    |
Dec 06 04:57:43.892 INFO [stderr] 35 |             write!(&mut output, "{} ", self.lines);
Dec 06 04:57:43.892 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:57:43.892 INFO [stderr]    |
Dec 06 04:57:43.892 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 04:57:43.892 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:57:43.892 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 04:57:43.892 INFO [stderr] 
Dec 06 04:57:43.892 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:57:43.892 INFO [stderr]   --> src/word_count.rs:38:13
Dec 06 04:57:43.892 INFO [stderr]    |
Dec 06 04:57:43.892 INFO [stderr] 38 |             write!(&mut output, "{} ", self.words);
Dec 06 04:57:43.892 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:57:43.892 INFO [stderr]    |
Dec 06 04:57:43.892 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:57:43.892 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 04:57:43.892 INFO [stderr] 
Dec 06 04:57:43.892 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:57:43.892 INFO [stderr]   --> src/word_count.rs:41:13
Dec 06 04:57:43.892 INFO [stderr]    |
Dec 06 04:57:43.892 INFO [stderr] 41 |             write!(&mut output, "{} ", self.bytes);
Dec 06 04:57:43.892 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:57:43.892 INFO [stderr]    |
Dec 06 04:57:43.892 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:57:43.892 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 04:57:43.892 INFO [stderr] 
Dec 06 04:57:43.892 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:57:43.892 INFO [stderr]   --> src/word_count.rs:44:13
Dec 06 04:57:43.892 INFO [stderr]    |
Dec 06 04:57:43.892 INFO [stderr] 44 |             write!(&mut output, "{} ", self.chars);
Dec 06 04:57:43.892 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:57:43.892 INFO [stderr]    |
Dec 06 04:57:43.892 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:57:43.892 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 04:57:43.892 INFO [stderr] 
Dec 06 04:57:43.892 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 04:57:43.892 INFO [stderr]   --> src/word_count.rs:47:13
Dec 06 04:57:43.892 INFO [stderr]    |
Dec 06 04:57:43.892 INFO [stderr] 47 |             write!(&mut output, "{} ", self.max_length);
Dec 06 04:57:43.892 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 04:57:43.893 INFO [stderr]    |
Dec 06 04:57:43.893 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 04:57:43.893 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 04:57:43.893 INFO [stderr] 
Dec 06 04:57:44.174 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
Dec 06 04:57:44.178 INFO [stderr] su: No module specific data is present
Dec 06 04:57:44.972 INFO running `"docker" "inspect" "5f80e84b6bc2eca5c5f0cfb2af110598c3fec00c9b5289ceee15004256a86375"`
Dec 06 04:57:45.260 INFO running `"docker" "rm" "-f" "5f80e84b6bc2eca5c5f0cfb2af110598c3fec00c9b5289ceee15004256a86375"`
Dec 06 04:57:45.497 INFO [stdout] 5f80e84b6bc2eca5c5f0cfb2af110598c3fec00c9b5289ceee15004256a86375
Dec 06 04:57:45.502 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 04:57:45.984 INFO [stdout] d3885b1f2b22d5f6b9d0bae7c459f94fe49bb734ef1447d835f0e78c5f56b5bd
Dec 06 04:57:45.990 INFO running `"docker" "start" "-a" "d3885b1f2b22d5f6b9d0bae7c459f94fe49bb734ef1447d835f0e78c5f56b5bd"`
Dec 06 04:57:47.094 INFO [stderr] usermod: no changes
Dec 06 04:57:47.160 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 06 04:57:47.172 INFO [stderr]      Running /target/debug/deps/rust_wc-6e218c1b5bbda877
Dec 06 04:57:47.173 INFO [stdout] 
Dec 06 04:57:47.173 INFO [stdout] running 0 tests
Dec 06 04:57:47.173 INFO [stdout] 
Dec 06 04:57:47.173 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 04:57:47.173 INFO [stdout] 
Dec 06 04:57:47.175 INFO [stderr] su: No module specific data is present
Dec 06 04:57:47.693 INFO running `"docker" "inspect" "d3885b1f2b22d5f6b9d0bae7c459f94fe49bb734ef1447d835f0e78c5f56b5bd"`
Dec 06 04:57:47.958 INFO running `"docker" "rm" "-f" "d3885b1f2b22d5f6b9d0bae7c459f94fe49bb734ef1447d835f0e78c5f56b5bd"`
Dec 06 04:57:48.232 INFO [stdout] d3885b1f2b22d5f6b9d0bae7c459f94fe49bb734ef1447d835f0e78c5f56b5bd