Dec 06 15:23:41.921 INFO testing BookOwl/trusty against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 15:23:41.921 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 15:23:42.112 INFO [stdout] 7cbfc70b1781d790d17462c6fde793c5ba91f54a8c77a2139f47220968198218
Dec 06 15:23:42.114 INFO running `"docker" "start" "-a" "7cbfc70b1781d790d17462c6fde793c5ba91f54a8c77a2139f47220968198218"`
Dec 06 15:23:42.460 INFO [stderr] usermod: no changes
Dec 06 15:23:42.490 INFO [stderr]    Compiling left-pad v1.0.1
Dec 06 15:23:42.859 INFO [stderr]    Compiling trusty v0.1.0 (/source)
Dec 06 15:23:43.342 INFO [stderr] warning: variable does not need to be mutable
Dec 06 15:23:43.342 INFO [stderr]   --> src/backend.rs:62:17
Dec 06 15:23:43.342 INFO [stderr]    |
Dec 06 15:23:43.342 INFO [stderr] 62 |             let mut buf = self.current_buffer_mut();
Dec 06 15:23:43.342 INFO [stderr]    |                 ----^^^
Dec 06 15:23:43.342 INFO [stderr]    |                 |
Dec 06 15:23:43.342 INFO [stderr]    |                 help: remove this `mut`
Dec 06 15:23:43.342 INFO [stderr]    |
Dec 06 15:23:43.342 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 06 15:23:43.342 INFO [stderr] 
Dec 06 15:23:43.342 INFO [stderr] warning: variable does not need to be mutable
Dec 06 15:23:43.342 INFO [stderr]   --> src/backend.rs:66:13
Dec 06 15:23:43.342 INFO [stderr]    |
Dec 06 15:23:43.342 INFO [stderr] 66 |         let mut cursor = self.cursor_mut();
Dec 06 15:23:43.342 INFO [stderr]    |             ----^^^^^^
Dec 06 15:23:43.342 INFO [stderr]    |             |
Dec 06 15:23:43.342 INFO [stderr]    |             help: remove this `mut`
Dec 06 15:23:43.342 INFO [stderr] 
Dec 06 15:23:44.673 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.19s
Dec 06 15:23:44.681 INFO [stderr] su: No module specific data is present
Dec 06 15:23:45.136 INFO running `"docker" "inspect" "7cbfc70b1781d790d17462c6fde793c5ba91f54a8c77a2139f47220968198218"`
Dec 06 15:23:45.217 INFO running `"docker" "rm" "-f" "7cbfc70b1781d790d17462c6fde793c5ba91f54a8c77a2139f47220968198218"`
Dec 06 15:23:45.308 INFO [stdout] 7cbfc70b1781d790d17462c6fde793c5ba91f54a8c77a2139f47220968198218
Dec 06 15:23:45.310 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 15:23:45.658 INFO [stdout] 1cbe99d4e52fa335574e9508ff19c6a8fde740ad737c166a05e6773ab25a07b7
Dec 06 15:23:45.660 INFO running `"docker" "start" "-a" "1cbe99d4e52fa335574e9508ff19c6a8fde740ad737c166a05e6773ab25a07b7"`
Dec 06 15:23:46.192 INFO [stderr] usermod: no changes
Dec 06 15:23:46.223 INFO [stderr]    Compiling trusty v0.1.0 (/source)
Dec 06 15:23:46.833 INFO [stderr] warning: variable does not need to be mutable
Dec 06 15:23:46.833 INFO [stderr]   --> src/backend.rs:62:17
Dec 06 15:23:46.833 INFO [stderr]    |
Dec 06 15:23:46.833 INFO [stderr] 62 |             let mut buf = self.current_buffer_mut();
Dec 06 15:23:46.833 INFO [stderr]    |                 ----^^^
Dec 06 15:23:46.834 INFO [stderr]    |                 |
Dec 06 15:23:46.834 INFO [stderr]    |                 help: remove this `mut`
Dec 06 15:23:46.834 INFO [stderr]    |
Dec 06 15:23:46.834 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 06 15:23:46.834 INFO [stderr] 
Dec 06 15:23:46.834 INFO [stderr] warning: variable does not need to be mutable
Dec 06 15:23:46.834 INFO [stderr]   --> src/backend.rs:66:13
Dec 06 15:23:46.834 INFO [stderr]    |
Dec 06 15:23:46.834 INFO [stderr] 66 |         let mut cursor = self.cursor_mut();
Dec 06 15:23:46.834 INFO [stderr]    |             ----^^^^^^
Dec 06 15:23:46.834 INFO [stderr]    |             |
Dec 06 15:23:46.834 INFO [stderr]    |             help: remove this `mut`
Dec 06 15:23:46.834 INFO [stderr] 
Dec 06 15:23:47.109 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
Dec 06 15:23:47.112 INFO [stderr] su: No module specific data is present
Dec 06 15:23:47.349 INFO running `"docker" "inspect" "1cbe99d4e52fa335574e9508ff19c6a8fde740ad737c166a05e6773ab25a07b7"`
Dec 06 15:23:47.421 INFO running `"docker" "rm" "-f" "1cbe99d4e52fa335574e9508ff19c6a8fde740ad737c166a05e6773ab25a07b7"`
Dec 06 15:23:47.501 INFO [stdout] 1cbe99d4e52fa335574e9508ff19c6a8fde740ad737c166a05e6773ab25a07b7
Dec 06 15:23:47.503 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 15:23:47.731 INFO [stdout] 281ce84c10e14236653e87010f97972a406652289b1068c8cec729056d66a79c
Dec 06 15:23:47.734 INFO running `"docker" "start" "-a" "281ce84c10e14236653e87010f97972a406652289b1068c8cec729056d66a79c"`
Dec 06 15:23:48.136 INFO [stderr] usermod: no changes
Dec 06 15:23:48.171 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 06 15:23:48.171 INFO [stderr]      Running /target/debug/deps/trusty-40a5e1365123a781
Dec 06 15:23:48.173 INFO [stdout] 
Dec 06 15:23:48.173 INFO [stdout] running 0 tests
Dec 06 15:23:48.173 INFO [stdout] 
Dec 06 15:23:48.173 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 15:23:48.173 INFO [stdout] 
Dec 06 15:23:48.174 INFO [stderr]      Running /target/debug/deps/trusty-3530e9e919d1d2aa
Dec 06 15:23:48.175 INFO [stdout] 
Dec 06 15:23:48.175 INFO [stdout] running 0 tests
Dec 06 15:23:48.175 INFO [stdout] 
Dec 06 15:23:48.175 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 15:23:48.175 INFO [stdout] 
Dec 06 15:23:48.175 INFO [stderr]    Doc-tests trusty
Dec 06 15:23:48.932 INFO [stdout] 
Dec 06 15:23:48.932 INFO [stdout] running 0 tests
Dec 06 15:23:48.932 INFO [stdout] 
Dec 06 15:23:48.933 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 15:23:48.933 INFO [stdout] 
Dec 06 15:23:48.944 INFO [stderr] su: No module specific data is present
Dec 06 15:23:49.544 INFO running `"docker" "inspect" "281ce84c10e14236653e87010f97972a406652289b1068c8cec729056d66a79c"`
Dec 06 15:23:49.885 INFO running `"docker" "rm" "-f" "281ce84c10e14236653e87010f97972a406652289b1068c8cec729056d66a79c"`
Dec 06 15:23:50.088 INFO [stdout] 281ce84c10e14236653e87010f97972a406652289b1068c8cec729056d66a79c