Sep 20 02:22:49.901 INFO checking elementtree-0.4.0 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 20 02:22:49.901 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 20 02:22:49.901 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-2/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 20 02:22:50.130 INFO blam! 32921e2625d0595a165712256c7bbe9f87eca6f2aa775d52b7b37cb4c5f39d9d
Sep 20 02:22:50.142 INFO running `"docker" "start" "-a" "32921e2625d0595a165712256c7bbe9f87eca6f2aa775d52b7b37cb4c5f39d9d"`
Sep 20 02:22:51.314 INFO kablam! usermod: no changes
Sep 20 02:22:51.494 INFO kablam!     Checking elementtree v0.4.0 (/source)
Sep 20 02:22:54.013 INFO kablam! warning: variable does not need to be mutable
Sep 20 02:22:54.013 INFO kablam!    --> tests/test_basic.rs:138:13
Sep 20 02:22:54.013 INFO kablam!     |
Sep 20 02:22:54.013 INFO kablam! 138 |         let mut list = root.append_new_child("{demo}list");
Sep 20 02:22:54.013 INFO kablam!     |             ----^^^^
Sep 20 02:22:54.013 INFO kablam!     |             |
Sep 20 02:22:54.013 INFO kablam!     |             help: remove this `mut`
Sep 20 02:22:54.013 INFO kablam!     |
Sep 20 02:22:54.013 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 20 02:22:54.013 INFO kablam! 
Sep 20 02:22:54.027 INFO kablam! warning: variable does not need to be mutable
Sep 20 02:22:54.027 INFO kablam!    --> tests/test_basic.rs:183:13
Sep 20 02:22:54.027 INFO kablam!     |
Sep 20 02:22:54.027 INFO kablam! 183 |         let mut list = root.append_new_child("{demo}list");
Sep 20 02:22:54.027 INFO kablam!     |             ----^^^^
Sep 20 02:22:54.027 INFO kablam!     |             |
Sep 20 02:22:54.027 INFO kablam!     |             help: remove this `mut`
Sep 20 02:22:54.027 INFO kablam! 
Sep 20 02:22:54.027 INFO kablam! warning: variable does not need to be mutable
Sep 20 02:22:54.027 INFO kablam!    --> tests/test_basic.rs:210:13
Sep 20 02:22:54.027 INFO kablam!     |
Sep 20 02:22:54.027 INFO kablam! 210 |         let mut list = root.append_new_child("{demo}list");
Sep 20 02:22:54.027 INFO kablam!     |             ----^^^^
Sep 20 02:22:54.027 INFO kablam!     |             |
Sep 20 02:22:54.027 INFO kablam!     |             help: remove this `mut`
Sep 20 02:22:54.027 INFO kablam! 
Sep 20 02:22:54.031 INFO kablam! warning: variable does not need to be mutable
Sep 20 02:22:54.031 INFO kablam!    --> tests/test_basic.rs:238:13
Sep 20 02:22:54.031 INFO kablam!     |
Sep 20 02:22:54.031 INFO kablam! 238 |         let mut list = root.append_new_child("{demo}list");
Sep 20 02:22:54.031 INFO kablam!     |             ----^^^^
Sep 20 02:22:54.031 INFO kablam!     |             |
Sep 20 02:22:54.031 INFO kablam!     |             help: remove this `mut`
Sep 20 02:22:54.031 INFO kablam! 
Sep 20 02:22:54.031 INFO kablam! warning: variable does not need to be mutable
Sep 20 02:22:54.031 INFO kablam!    --> tests/test_basic.rs:266:13
Sep 20 02:22:54.031 INFO kablam!     |
Sep 20 02:22:54.031 INFO kablam! 266 |         let mut list = root.append_new_child("{demo}list");
Sep 20 02:22:54.031 INFO kablam!     |             ----^^^^
Sep 20 02:22:54.031 INFO kablam!     |             |
Sep 20 02:22:54.031 INFO kablam!     |             help: remove this `mut`
Sep 20 02:22:54.031 INFO kablam! 
Sep 20 02:22:54.088 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.73s
Sep 20 02:22:54.103 INFO kablam! su: No module specific data is present
Sep 20 02:22:55.125 INFO running `"docker" "rm" "-f" "32921e2625d0595a165712256c7bbe9f87eca6f2aa775d52b7b37cb4c5f39d9d"`
Sep 20 02:22:55.247 INFO blam! 32921e2625d0595a165712256c7bbe9f87eca6f2aa775d52b7b37cb4c5f39d9d