Sep 01 21:54:22.241 INFO checking elementtree-0.4.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Sep 01 21:54:22.241 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 21:54:22.241 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-3/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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=500" "-e" "CMD=cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 21:54:22.398 INFO blam! f822ecc8395727d0703f213e61d43c753d9535fb6294899033bbbca2c9534ee7
Sep 01 21:54:22.400 INFO running `"docker" "start" "-a" "f822ecc8395727d0703f213e61d43c753d9535fb6294899033bbbca2c9534ee7"`
Sep 01 21:54:23.118 INFO kablam!     Checking elementtree v0.4.0 (file:///source)
Sep 01 21:54:27.029 INFO kablam! warning: variable does not need to be mutable
Sep 01 21:54:27.029 INFO kablam!    --> tests/test_basic.rs:138:13
Sep 01 21:54:27.029 INFO kablam!     |
Sep 01 21:54:27.029 INFO kablam! 138 |         let mut list = root.append_new_child("{demo}list");
Sep 01 21:54:27.029 INFO kablam!     |             ----^^^^
Sep 01 21:54:27.029 INFO kablam!     |             |
Sep 01 21:54:27.029 INFO kablam!     |             help: remove this `mut`
Sep 01 21:54:27.029 INFO kablam!     |
Sep 01 21:54:27.029 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 01 21:54:27.029 INFO kablam! 
Sep 01 21:54:27.036 INFO kablam! warning: variable does not need to be mutable
Sep 01 21:54:27.036 INFO kablam!    --> tests/test_basic.rs:183:13
Sep 01 21:54:27.036 INFO kablam!     |
Sep 01 21:54:27.036 INFO kablam! 183 |         let mut list = root.append_new_child("{demo}list");
Sep 01 21:54:27.036 INFO kablam!     |             ----^^^^
Sep 01 21:54:27.036 INFO kablam!     |             |
Sep 01 21:54:27.036 INFO kablam!     |             help: remove this `mut`
Sep 01 21:54:27.036 INFO kablam! 
Sep 01 21:54:27.039 INFO kablam! warning: variable does not need to be mutable
Sep 01 21:54:27.039 INFO kablam!    --> tests/test_basic.rs:210:13
Sep 01 21:54:27.039 INFO kablam!     |
Sep 01 21:54:27.039 INFO kablam! 210 |         let mut list = root.append_new_child("{demo}list");
Sep 01 21:54:27.039 INFO kablam!     |             ----^^^^
Sep 01 21:54:27.039 INFO kablam!     |             |
Sep 01 21:54:27.039 INFO kablam!     |             help: remove this `mut`
Sep 01 21:54:27.039 INFO kablam! 
Sep 01 21:54:27.041 INFO kablam! warning: variable does not need to be mutable
Sep 01 21:54:27.041 INFO kablam!    --> tests/test_basic.rs:238:13
Sep 01 21:54:27.041 INFO kablam!     |
Sep 01 21:54:27.041 INFO kablam! 238 |         let mut list = root.append_new_child("{demo}list");
Sep 01 21:54:27.041 INFO kablam!     |             ----^^^^
Sep 01 21:54:27.041 INFO kablam!     |             |
Sep 01 21:54:27.041 INFO kablam!     |             help: remove this `mut`
Sep 01 21:54:27.041 INFO kablam! 
Sep 01 21:54:27.043 INFO kablam! warning: variable does not need to be mutable
Sep 01 21:54:27.043 INFO kablam!    --> tests/test_basic.rs:266:13
Sep 01 21:54:27.043 INFO kablam!     |
Sep 01 21:54:27.043 INFO kablam! 266 |         let mut list = root.append_new_child("{demo}list");
Sep 01 21:54:27.043 INFO kablam!     |             ----^^^^
Sep 01 21:54:27.043 INFO kablam!     |             |
Sep 01 21:54:27.044 INFO kablam!     |             help: remove this `mut`
Sep 01 21:54:27.044 INFO kablam! 
Sep 01 21:54:27.065 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.01s
Sep 01 21:54:27.070 INFO kablam! su: No module specific data is present
Sep 01 21:54:27.486 INFO running `"docker" "rm" "-f" "f822ecc8395727d0703f213e61d43c753d9535fb6294899033bbbca2c9534ee7"`
Sep 01 21:54:27.575 INFO blam! f822ecc8395727d0703f213e61d43c753d9535fb6294899033bbbca2c9534ee7