Dec 06 15:23:43.594 INFO testing BookOwl/trusty against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 15:23:43.594 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 15:23:43.907 INFO [stdout] bc2f9618dccaa0e49d9561df4f3c6933806470aab4c9edb9f9184b55069b2d00
Dec 06 15:23:43.909 INFO running `"docker" "start" "-a" "bc2f9618dccaa0e49d9561df4f3c6933806470aab4c9edb9f9184b55069b2d00"`
Dec 06 15:23:44.323 INFO [stderr] usermod: no changes
Dec 06 15:23:44.354 INFO [stderr]    Compiling left-pad v1.0.1
Dec 06 15:23:44.728 INFO [stderr]    Compiling trusty v0.1.0 (/source)
Dec 06 15:23:45.288 INFO [stderr] warning: variable does not need to be mutable
Dec 06 15:23:45.288 INFO [stderr]   --> src/backend.rs:62:17
Dec 06 15:23:45.288 INFO [stderr]    |
Dec 06 15:23:45.288 INFO [stderr] 62 |             let mut buf = self.current_buffer_mut();
Dec 06 15:23:45.288 INFO [stderr]    |                 ----^^^
Dec 06 15:23:45.288 INFO [stderr]    |                 |
Dec 06 15:23:45.288 INFO [stderr]    |                 help: remove this `mut`
Dec 06 15:23:45.288 INFO [stderr]    |
Dec 06 15:23:45.288 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 06 15:23:45.288 INFO [stderr] 
Dec 06 15:23:45.288 INFO [stderr] warning: variable does not need to be mutable
Dec 06 15:23:45.288 INFO [stderr]   --> src/backend.rs:66:13
Dec 06 15:23:45.288 INFO [stderr]    |
Dec 06 15:23:45.288 INFO [stderr] 66 |         let mut cursor = self.cursor_mut();
Dec 06 15:23:45.288 INFO [stderr]    |             ----^^^^^^
Dec 06 15:23:45.288 INFO [stderr]    |             |
Dec 06 15:23:45.288 INFO [stderr]    |             help: remove this `mut`
Dec 06 15:23:45.288 INFO [stderr] 
Dec 06 15:23:46.629 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.29s
Dec 06 15:23:46.632 INFO [stderr] su: No module specific data is present
Dec 06 15:23:46.952 INFO running `"docker" "inspect" "bc2f9618dccaa0e49d9561df4f3c6933806470aab4c9edb9f9184b55069b2d00"`
Dec 06 15:23:47.048 INFO running `"docker" "rm" "-f" "bc2f9618dccaa0e49d9561df4f3c6933806470aab4c9edb9f9184b55069b2d00"`
Dec 06 15:23:47.201 INFO [stdout] bc2f9618dccaa0e49d9561df4f3c6933806470aab4c9edb9f9184b55069b2d00
Dec 06 15:23:47.205 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 15:23:47.405 INFO [stdout] 25d476330304f7e9fdb622ba9f3e1607ef3d65cad68685da5adad2a070cdbe79
Dec 06 15:23:47.407 INFO running `"docker" "start" "-a" "25d476330304f7e9fdb622ba9f3e1607ef3d65cad68685da5adad2a070cdbe79"`
Dec 06 15:23:47.804 INFO [stderr] usermod: no changes
Dec 06 15:23:47.844 INFO [stderr]    Compiling trusty v0.1.0 (/source)
Dec 06 15:23:48.491 INFO [stderr] warning: variable does not need to be mutable
Dec 06 15:23:48.491 INFO [stderr]   --> src/backend.rs:62:17
Dec 06 15:23:48.491 INFO [stderr]    |
Dec 06 15:23:48.491 INFO [stderr] 62 |             let mut buf = self.current_buffer_mut();
Dec 06 15:23:48.491 INFO [stderr]    |                 ----^^^
Dec 06 15:23:48.491 INFO [stderr]    |                 |
Dec 06 15:23:48.491 INFO [stderr]    |                 help: remove this `mut`
Dec 06 15:23:48.491 INFO [stderr]    |
Dec 06 15:23:48.491 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 06 15:23:48.491 INFO [stderr] 
Dec 06 15:23:48.491 INFO [stderr] warning: variable does not need to be mutable
Dec 06 15:23:48.491 INFO [stderr]   --> src/backend.rs:66:13
Dec 06 15:23:48.491 INFO [stderr]    |
Dec 06 15:23:48.491 INFO [stderr] 66 |         let mut cursor = self.cursor_mut();
Dec 06 15:23:48.491 INFO [stderr]    |             ----^^^^^^
Dec 06 15:23:48.491 INFO [stderr]    |             |
Dec 06 15:23:48.491 INFO [stderr]    |             help: remove this `mut`
Dec 06 15:23:48.491 INFO [stderr] 
Dec 06 15:23:48.799 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
Dec 06 15:23:48.803 INFO [stderr] su: No module specific data is present
Dec 06 15:23:49.246 INFO running `"docker" "inspect" "25d476330304f7e9fdb622ba9f3e1607ef3d65cad68685da5adad2a070cdbe79"`
Dec 06 15:23:49.418 INFO running `"docker" "rm" "-f" "25d476330304f7e9fdb622ba9f3e1607ef3d65cad68685da5adad2a070cdbe79"`
Dec 06 15:23:49.652 INFO [stdout] 25d476330304f7e9fdb622ba9f3e1607ef3d65cad68685da5adad2a070cdbe79
Dec 06 15:23:49.654 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 15:23:50.016 INFO [stdout] 0aeff506f31b6524a8f1b5242b3797cc99304e3b9e31624f6e20e0d158faf0ae
Dec 06 15:23:50.018 INFO running `"docker" "start" "-a" "0aeff506f31b6524a8f1b5242b3797cc99304e3b9e31624f6e20e0d158faf0ae"`
Dec 06 15:23:50.884 INFO [stderr] usermod: no changes
Dec 06 15:23:50.918 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 06 15:23:50.920 INFO [stderr]      Running /target/debug/deps/trusty-5bb4c34369f1d1cc
Dec 06 15:23:50.922 INFO [stdout] 
Dec 06 15:23:50.922 INFO [stdout] running 0 tests
Dec 06 15:23:50.922 INFO [stdout] 
Dec 06 15:23:50.922 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 15:23:50.922 INFO [stdout] 
Dec 06 15:23:50.922 INFO [stderr]      Running /target/debug/deps/trusty-13e068cafea6593f
Dec 06 15:23:50.928 INFO [stderr]    Doc-tests trusty
Dec 06 15:23:50.928 INFO [stdout] 
Dec 06 15:23:50.928 INFO [stdout] running 0 tests
Dec 06 15:23:50.928 INFO [stdout] 
Dec 06 15:23:50.928 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 15:23:50.928 INFO [stdout] 
Dec 06 15:23:51.661 INFO [stdout] 
Dec 06 15:23:51.661 INFO [stdout] running 0 tests
Dec 06 15:23:51.661 INFO [stdout] 
Dec 06 15:23:51.661 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 15:23:51.661 INFO [stdout] 
Dec 06 15:23:51.667 INFO [stderr] su: No module specific data is present
Dec 06 15:23:52.050 INFO running `"docker" "inspect" "0aeff506f31b6524a8f1b5242b3797cc99304e3b9e31624f6e20e0d158faf0ae"`
Dec 06 15:23:52.192 INFO running `"docker" "rm" "-f" "0aeff506f31b6524a8f1b5242b3797cc99304e3b9e31624f6e20e0d158faf0ae"`
Dec 06 15:23:52.326 INFO [stdout] 0aeff506f31b6524a8f1b5242b3797cc99304e3b9e31624f6e20e0d158faf0ae