Sep 10 06:51:35.341 INFO checking vertree-0.2.2 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 06:51:35.341 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 06:51:35.341 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-4/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 06:51:35.489 INFO blam! 4fc89c4cd03f724a98abb811e094a815a739bccec0df0cb76f971e927b24b11d
Sep 10 06:51:35.489 INFO running `"docker" "start" "-a" "4fc89c4cd03f724a98abb811e094a815a739bccec0df0cb76f971e927b24b11d"`
Sep 10 06:51:36.557 INFO kablam! usermod: no changes
Sep 10 06:51:36.657 INFO kablam!    Compiling serde v1.0.78
Sep 10 06:51:36.659 INFO kablam!     Checking quickcheck v0.4.1
Sep 10 06:51:46.746 INFO kablam!     Checking rmp-serde v0.13.7
Sep 10 06:51:47.542 INFO kablam!     Checking vertree v0.2.2 (file:///source)
Sep 10 06:51:49.414 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:51:49.414 INFO kablam!    --> src/tree.rs:268:14
Sep 10 06:51:49.414 INFO kablam!     |
Sep 10 06:51:49.414 INFO kablam! 268 |         let (mut queue, version, tree) = {
Sep 10 06:51:49.414 INFO kablam!     |              ----^^^^^
Sep 10 06:51:49.414 INFO kablam!     |              |
Sep 10 06:51:49.414 INFO kablam!     |              help: remove this `mut`
Sep 10 06:51:49.414 INFO kablam!     |
Sep 10 06:51:49.414 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 10 06:51:49.414 INFO kablam! 
Sep 10 06:51:49.414 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:51:49.414 INFO kablam!    --> src/tree.rs:282:14
Sep 10 06:51:49.414 INFO kablam!     |
Sep 10 06:51:49.414 INFO kablam! 282 |         let (mut queue, version, tree) = {
Sep 10 06:51:49.414 INFO kablam!     |              ----^^^^^
Sep 10 06:51:49.414 INFO kablam!     |              |
Sep 10 06:51:49.414 INFO kablam!     |              help: remove this `mut`
Sep 10 06:51:49.414 INFO kablam! 
Sep 10 06:51:49.414 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:51:49.414 INFO kablam!    --> src/tree.rs:295:14
Sep 10 06:51:49.414 INFO kablam!     |
Sep 10 06:51:49.414 INFO kablam! 295 |         let (mut set, version, tree) = {
Sep 10 06:51:49.414 INFO kablam!     |              ----^^^
Sep 10 06:51:49.414 INFO kablam!     |              |
Sep 10 06:51:49.414 INFO kablam!     |              help: remove this `mut`
Sep 10 06:51:49.414 INFO kablam! 
Sep 10 06:51:49.414 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:51:49.414 INFO kablam!    --> src/tree.rs:308:14
Sep 10 06:51:49.414 INFO kablam!     |
Sep 10 06:51:49.414 INFO kablam! 308 |         let (mut set, version, tree) = {
Sep 10 06:51:49.414 INFO kablam!     |              ----^^^
Sep 10 06:51:49.414 INFO kablam!     |              |
Sep 10 06:51:49.414 INFO kablam!     |              help: remove this `mut`
Sep 10 06:51:49.414 INFO kablam! 
Sep 10 06:51:49.414 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:51:49.414 INFO kablam!    --> src/tree.rs:322:13
Sep 10 06:51:49.414 INFO kablam!     |
Sep 10 06:51:49.415 INFO kablam! 322 |         let mut queue = node.content.get_queue_mut().unwrap();
Sep 10 06:51:49.415 INFO kablam!     |             ----^^^^^
Sep 10 06:51:49.415 INFO kablam!     |             |
Sep 10 06:51:49.415 INFO kablam!     |             help: remove this `mut`
Sep 10 06:51:49.415 INFO kablam! 
Sep 10 06:51:49.415 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:51:49.415 INFO kablam!    --> src/tree.rs:328:13
Sep 10 06:51:49.415 INFO kablam!     |
Sep 10 06:51:49.415 INFO kablam! 328 |         let mut queue = node.content.get_set_mut().unwrap();
Sep 10 06:51:49.415 INFO kablam!     |             ----^^^^^
Sep 10 06:51:49.415 INFO kablam!     |             |
Sep 10 06:51:49.415 INFO kablam!     |             help: remove this `mut`
Sep 10 06:51:49.415 INFO kablam! 
Sep 10 06:51:49.830 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:51:49.830 INFO kablam!    --> src/tree.rs:268:14
Sep 10 06:51:49.830 INFO kablam!     |
Sep 10 06:51:49.830 INFO kablam! 268 |         let (mut queue, version, tree) = {
Sep 10 06:51:49.830 INFO kablam!     |              ----^^^^^
Sep 10 06:51:49.830 INFO kablam!     |              |
Sep 10 06:51:49.830 INFO kablam!     |              help: remove this `mut`
Sep 10 06:51:49.830 INFO kablam!     |
Sep 10 06:51:49.830 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 10 06:51:49.830 INFO kablam! 
Sep 10 06:51:49.830 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:51:49.830 INFO kablam!    --> src/tree.rs:282:14
Sep 10 06:51:49.830 INFO kablam!     |
Sep 10 06:51:49.830 INFO kablam! 282 |         let (mut queue, version, tree) = {
Sep 10 06:51:49.830 INFO kablam!     |              ----^^^^^
Sep 10 06:51:49.830 INFO kablam!     |              |
Sep 10 06:51:49.830 INFO kablam!     |              help: remove this `mut`
Sep 10 06:51:49.830 INFO kablam! 
Sep 10 06:51:49.830 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:51:49.830 INFO kablam!    --> src/tree.rs:295:14
Sep 10 06:51:49.830 INFO kablam!     |
Sep 10 06:51:49.830 INFO kablam! 295 |         let (mut set, version, tree) = {
Sep 10 06:51:49.830 INFO kablam!     |              ----^^^
Sep 10 06:51:49.830 INFO kablam!     |              |
Sep 10 06:51:49.830 INFO kablam!     |              help: remove this `mut`
Sep 10 06:51:49.830 INFO kablam! 
Sep 10 06:51:49.834 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:51:49.834 INFO kablam!    --> src/tree.rs:308:14
Sep 10 06:51:49.834 INFO kablam!     |
Sep 10 06:51:49.834 INFO kablam! 308 |         let (mut set, version, tree) = {
Sep 10 06:51:49.834 INFO kablam!     |              ----^^^
Sep 10 06:51:49.834 INFO kablam!     |              |
Sep 10 06:51:49.834 INFO kablam!     |              help: remove this `mut`
Sep 10 06:51:49.834 INFO kablam! 
Sep 10 06:51:49.834 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:51:49.834 INFO kablam!    --> src/tree.rs:322:13
Sep 10 06:51:49.834 INFO kablam!     |
Sep 10 06:51:49.834 INFO kablam! 322 |         let mut queue = node.content.get_queue_mut().unwrap();
Sep 10 06:51:49.834 INFO kablam!     |             ----^^^^^
Sep 10 06:51:49.834 INFO kablam!     |             |
Sep 10 06:51:49.834 INFO kablam!     |             help: remove this `mut`
Sep 10 06:51:49.834 INFO kablam! 
Sep 10 06:51:49.834 INFO kablam! warning: variable does not need to be mutable
Sep 10 06:51:49.834 INFO kablam!    --> src/tree.rs:328:13
Sep 10 06:51:49.834 INFO kablam!     |
Sep 10 06:51:49.834 INFO kablam! 328 |         let mut queue = node.content.get_set_mut().unwrap();
Sep 10 06:51:49.834 INFO kablam!     |             ----^^^^^
Sep 10 06:51:49.834 INFO kablam!     |             |
Sep 10 06:51:49.834 INFO kablam!     |             help: remove this `mut`
Sep 10 06:51:49.834 INFO kablam! 
Sep 10 06:51:50.516 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 13.94s
Sep 10 06:51:50.534 INFO kablam! su: No module specific data is present
Sep 10 06:51:51.392 INFO running `"docker" "rm" "-f" "4fc89c4cd03f724a98abb811e094a815a739bccec0df0cb76f971e927b24b11d"`
Sep 10 06:51:51.503 INFO blam! 4fc89c4cd03f724a98abb811e094a815a739bccec0df0cb76f971e927b24b11d