Oct 13 05:25:49.302 INFO checking BookOwl/trusty against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 05:25:49.302 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-3/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-3/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 13 05:25:49.585 INFO blam! fc299a8c2c27db272632ea43da0123dc1e565bf68bf91f579339d1f143959a40
Oct 13 05:25:49.598 INFO running `"docker" "start" "-a" "fc299a8c2c27db272632ea43da0123dc1e565bf68bf91f579339d1f143959a40"`
Oct 13 05:25:50.435 INFO kablam! usermod: no changes
Oct 13 05:25:50.474 INFO kablam!     Checking left-pad v1.0.1
Oct 13 05:25:50.476 INFO kablam!     Checking termion v1.1.4
Oct 13 05:25:51.888 INFO kablam!     Checking trusty v0.1.0 (/source)
Oct 13 05:25:53.040 INFO kablam! warning: variable does not need to be mutable
Oct 13 05:25:53.041 INFO kablam!   --> src/backend.rs:62:17
Oct 13 05:25:53.042 INFO kablam!    |
Oct 13 05:25:53.043 INFO kablam! 62 |             let mut buf = self.current_buffer_mut();
Oct 13 05:25:53.043 INFO kablam!    |                 ----^^^
Oct 13 05:25:53.044 INFO kablam!    |                 |
Oct 13 05:25:53.044 INFO kablam!    |                 help: remove this `mut`
Oct 13 05:25:53.045 INFO kablam!    |
Oct 13 05:25:53.045 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 13 05:25:53.046 INFO kablam! 
Oct 13 05:25:53.046 INFO kablam! warning: variable does not need to be mutable
Oct 13 05:25:53.046 INFO kablam!   --> src/backend.rs:66:13
Oct 13 05:25:53.046 INFO kablam!    |
Oct 13 05:25:53.046 INFO kablam! 66 |         let mut cursor = self.cursor_mut();
Oct 13 05:25:53.046 INFO kablam!    |             ----^^^^^^
Oct 13 05:25:53.046 INFO kablam!    |             |
Oct 13 05:25:53.046 INFO kablam!    |             help: remove this `mut`
Oct 13 05:25:53.046 INFO kablam! 
Oct 13 05:25:53.428 INFO kablam! warning: variable does not need to be mutable
Oct 13 05:25:53.429 INFO kablam!   --> src/backend.rs:62:17
Oct 13 05:25:53.430 INFO kablam!    |
Oct 13 05:25:53.430 INFO kablam! 62 |             let mut buf = self.current_buffer_mut();
Oct 13 05:25:53.431 INFO kablam!    |                 ----^^^
Oct 13 05:25:53.432 INFO kablam!    |                 |
Oct 13 05:25:53.432 INFO kablam!    |                 help: remove this `mut`
Oct 13 05:25:53.433 INFO kablam!    |
Oct 13 05:25:53.434 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 13 05:25:53.434 INFO kablam! 
Oct 13 05:25:53.435 INFO kablam! warning: variable does not need to be mutable
Oct 13 05:25:53.435 INFO kablam!   --> src/backend.rs:66:13
Oct 13 05:25:53.436 INFO kablam!    |
Oct 13 05:25:53.437 INFO kablam! 66 |         let mut cursor = self.cursor_mut();
Oct 13 05:25:53.437 INFO kablam!    |             ----^^^^^^
Oct 13 05:25:53.438 INFO kablam!    |             |
Oct 13 05:25:53.439 INFO kablam!    |             help: remove this `mut`
Oct 13 05:25:53.439 INFO kablam! 
Oct 13 05:25:54.554 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.09s
Oct 13 05:25:54.557 INFO kablam! su: No module specific data is present
Oct 13 05:25:56.021 INFO running `"docker" "rm" "-f" "fc299a8c2c27db272632ea43da0123dc1e565bf68bf91f579339d1f143959a40"`
Oct 13 05:25:56.332 INFO blam! fc299a8c2c27db272632ea43da0123dc1e565bf68bf91f579339d1f143959a40