Sep 19 23:35:21.921 INFO checking jec-rccow-0.1.0 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 19 23:35:21.921 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 19 23:35:21.921 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-0/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 23:35:22.279 INFO blam! d15bf5c0b01c48ee0d0bd1f8e4c909326b8ec15c1359e7e93b512a8b722449a0
Sep 19 23:35:22.281 INFO running `"docker" "start" "-a" "d15bf5c0b01c48ee0d0bd1f8e4c909326b8ec15c1359e7e93b512a8b722449a0"`
Sep 19 23:35:24.094 INFO kablam! usermod: no changes
Sep 19 23:35:24.166 INFO kablam!     Checking jec-rccow v0.1.0 (/source)
Sep 19 23:35:24.782 INFO kablam! warning: variable does not need to be mutable
Sep 19 23:35:24.782 INFO kablam!   --> src/lib.rs:73:13
Sep 19 23:35:24.782 INFO kablam!    |
Sep 19 23:35:24.782 INFO kablam! 73 |         let mut a = RcCow::new(5i32);
Sep 19 23:35:24.782 INFO kablam!    |             ----^
Sep 19 23:35:24.782 INFO kablam!    |             |
Sep 19 23:35:24.782 INFO kablam!    |             help: remove this `mut`
Sep 19 23:35:24.782 INFO kablam!    |
Sep 19 23:35:24.782 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 19 23:35:24.782 INFO kablam! 
Sep 19 23:35:24.782 INFO kablam! warning: variable does not need to be mutable
Sep 19 23:35:24.782 INFO kablam!   --> src/lib.rs:77:13
Sep 19 23:35:24.782 INFO kablam!    |
Sep 19 23:35:24.782 INFO kablam! 77 |         let mut c = b.clone();
Sep 19 23:35:24.782 INFO kablam!    |             ----^
Sep 19 23:35:24.782 INFO kablam!    |             |
Sep 19 23:35:24.782 INFO kablam!    |             help: remove this `mut`
Sep 19 23:35:24.782 INFO kablam! 
Sep 19 23:35:24.807 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
Sep 19 23:35:24.809 INFO kablam! su: No module specific data is present
Sep 19 23:35:26.121 INFO running `"docker" "rm" "-f" "d15bf5c0b01c48ee0d0bd1f8e4c909326b8ec15c1359e7e93b512a8b722449a0"`
Sep 19 23:35:26.413 INFO blam! d15bf5c0b01c48ee0d0bd1f8e4c909326b8ec15c1359e7e93b512a8b722449a0