Nov 28 14:23:20.006 INFO checking BookOwl/trusty against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 14:23:20.008 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-alt check --frozen --all --all-targets" "-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"`
Nov 28 14:23:20.269 INFO [stdout] 1cd2264c9cc05b35a1789387659ccd423f0c50e5b28d9567f652cca8650057d4
Nov 28 14:23:20.274 INFO running `"docker" "start" "-a" "1cd2264c9cc05b35a1789387659ccd423f0c50e5b28d9567f652cca8650057d4"`
Nov 28 14:23:21.037 INFO [stderr] usermod: no changes
Nov 28 14:23:21.070 INFO [stderr]     Checking left-pad v1.0.1
Nov 28 14:23:21.071 INFO [stderr]     Checking termion v1.1.4
Nov 28 14:23:22.111 INFO [stderr]     Checking trusty v0.1.0 (/source)
Nov 28 14:23:22.944 INFO [stderr] warning: variable does not need to be mutable
Nov 28 14:23:22.944 INFO [stderr]   --> src/backend.rs:62:17
Nov 28 14:23:22.944 INFO [stderr]    |
Nov 28 14:23:22.945 INFO [stderr] 62 |             let mut buf = self.current_buffer_mut();
Nov 28 14:23:22.945 INFO [stderr]    |                 ----^^^
Nov 28 14:23:22.945 INFO [stderr]    |                 |
Nov 28 14:23:22.945 INFO [stderr]    |                 help: remove this `mut`
Nov 28 14:23:22.945 INFO [stderr]    |
Nov 28 14:23:22.945 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 14:23:22.945 INFO [stderr] 
Nov 28 14:23:22.945 INFO [stderr] warning: variable does not need to be mutable
Nov 28 14:23:22.945 INFO [stderr]   --> src/backend.rs:66:13
Nov 28 14:23:22.945 INFO [stderr]    |
Nov 28 14:23:22.945 INFO [stderr] 66 |         let mut cursor = self.cursor_mut();
Nov 28 14:23:22.945 INFO [stderr]    |             ----^^^^^^
Nov 28 14:23:22.945 INFO [stderr]    |             |
Nov 28 14:23:22.946 INFO [stderr]    |             help: remove this `mut`
Nov 28 14:23:22.946 INFO [stderr] 
Nov 28 14:23:23.173 INFO [stderr] warning: variable does not need to be mutable
Nov 28 14:23:23.173 INFO [stderr]   --> src/backend.rs:62:17
Nov 28 14:23:23.173 INFO [stderr]    |
Nov 28 14:23:23.173 INFO [stderr] 62 |             let mut buf = self.current_buffer_mut();
Nov 28 14:23:23.173 INFO [stderr]    |                 ----^^^
Nov 28 14:23:23.173 INFO [stderr]    |                 |
Nov 28 14:23:23.173 INFO [stderr]    |                 help: remove this `mut`
Nov 28 14:23:23.175 INFO [stderr]    |
Nov 28 14:23:23.175 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 14:23:23.175 INFO [stderr] 
Nov 28 14:23:23.175 INFO [stderr] warning: variable does not need to be mutable
Nov 28 14:23:23.175 INFO [stderr]   --> src/backend.rs:66:13
Nov 28 14:23:23.175 INFO [stderr]    |
Nov 28 14:23:23.175 INFO [stderr] 66 |         let mut cursor = self.cursor_mut();
Nov 28 14:23:23.175 INFO [stderr]    |             ----^^^^^^
Nov 28 14:23:23.175 INFO [stderr]    |             |
Nov 28 14:23:23.175 INFO [stderr]    |             help: remove this `mut`
Nov 28 14:23:23.175 INFO [stderr] 
Nov 28 14:23:24.311 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.25s
Nov 28 14:23:24.313 INFO [stderr] su: No module specific data is present
Nov 28 14:23:25.363 INFO running `"docker" "inspect" "1cd2264c9cc05b35a1789387659ccd423f0c50e5b28d9567f652cca8650057d4"`
Nov 28 14:23:25.490 INFO running `"docker" "rm" "-f" "1cd2264c9cc05b35a1789387659ccd423f0c50e5b28d9567f652cca8650057d4"`
Nov 28 14:23:25.649 INFO [stdout] 1cd2264c9cc05b35a1789387659ccd423f0c50e5b28d9567f652cca8650057d4