Aug 17 12:33:43.589 INFO checking ropey-0.8.4 against try#a5d98b025f62ace80fe9d2a15781f900fc42515e for pr-53426
Aug 17 12:33:43.589 INFO running: cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets
Aug 17 12:33:43.589 INFO creating container for: cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets
Aug 17 12:33:43.589 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-53426/try#a5d98b025f62ace80fe9d2a15781f900fc42515e:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-6/try#a5d98b025f62ace80fe9d2a15781f900fc42515e:/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 +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 17 12:33:43.822 INFO blam! e1692b24f9e38cba2f1dc8426cd697de3a122dee7876968dc75fbade72ab612d
Aug 17 12:33:43.825 INFO running `"docker" "start" "-a" "e1692b24f9e38cba2f1dc8426cd697de3a122dee7876968dc75fbade72ab612d"`
Aug 17 12:33:44.769 INFO kablam!     Checking rand v0.5.5
Aug 17 12:33:44.769 INFO kablam!     Checking wait-timeout v0.1.5
Aug 17 12:33:44.787 INFO kablam!     Checking ropey v0.8.4 (file:///source)
Aug 17 12:33:49.989 INFO kablam! warning: variable does not need to be mutable
Aug 17 12:33:49.989 INFO kablam!   --> src/tree/node.rs:97:30
Aug 17 12:33:49.989 INFO kablam!    |
Aug 17 12:33:49.989 INFO kablam! 97 |                 let (l_info, mut residual) = Arc::make_mut(&mut children.nodes_mut()[child_i])
Aug 17 12:33:49.990 INFO kablam!    |                              ----^^^^^^^^
Aug 17 12:33:49.990 INFO kablam!    |                              |
Aug 17 12:33:49.990 INFO kablam!    |                              help: remove this `mut`
Aug 17 12:33:49.990 INFO kablam!    |
Aug 17 12:33:49.990 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 17 12:33:49.990 INFO kablam! 
Aug 17 12:33:50.039 INFO kablam! warning: variable does not need to be mutable
Aug 17 12:33:50.039 INFO kablam!    --> src/tree/node.rs:202:21
Aug 17 12:33:50.039 INFO kablam!     |
Aug 17 12:33:50.039 INFO kablam! 202 |                 let mut handle_child = |children: &mut NodeChildren,
Aug 17 12:33:50.039 INFO kablam!     |                     ----^^^^^^^^^^^^
Aug 17 12:33:50.039 INFO kablam!     |                     |
Aug 17 12:33:50.039 INFO kablam!     |                     help: remove this `mut`
Aug 17 12:33:50.039 INFO kablam! 
Aug 17 12:33:54.448 INFO kablam!     Checking tempfile v3.0.3
Aug 17 12:33:55.593 INFO kablam!     Checking rusty-fork v0.2.0
Aug 17 12:33:56.708 INFO kablam!     Checking proptest v0.8.4
Aug 17 12:34:41.397 INFO kablam! warning: variable does not need to be mutable
Aug 17 12:34:41.397 INFO kablam!   --> src/tree/node.rs:97:30
Aug 17 12:34:41.397 INFO kablam!    |
Aug 17 12:34:41.397 INFO kablam! 97 |                 let (l_info, mut residual) = Arc::make_mut(&mut children.nodes_mut()[child_i])
Aug 17 12:34:41.397 INFO kablam!    |                              ----^^^^^^^^
Aug 17 12:34:41.397 INFO kablam!    |                              |
Aug 17 12:34:41.397 INFO kablam!    |                              help: remove this `mut`
Aug 17 12:34:41.397 INFO kablam!    |
Aug 17 12:34:41.397 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 17 12:34:41.397 INFO kablam! 
Aug 17 12:34:41.421 INFO kablam! warning: variable does not need to be mutable
Aug 17 12:34:41.421 INFO kablam!    --> src/tree/node.rs:202:21
Aug 17 12:34:41.421 INFO kablam!     |
Aug 17 12:34:41.422 INFO kablam! 202 |                 let mut handle_child = |children: &mut NodeChildren,
Aug 17 12:34:41.422 INFO kablam!     |                     ----^^^^^^^^^^^^
Aug 17 12:34:41.422 INFO kablam!     |                     |
Aug 17 12:34:41.422 INFO kablam!     |                     help: remove this `mut`
Aug 17 12:34:41.422 INFO kablam! 
Aug 17 12:34:42.905 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 58.30s
Aug 17 12:34:42.923 INFO kablam! su: No module specific data is present
Aug 17 12:34:43.398 INFO running `"docker" "rm" "-f" "e1692b24f9e38cba2f1dc8426cd697de3a122dee7876968dc75fbade72ab612d"`
Aug 17 12:34:43.560 INFO blam! e1692b24f9e38cba2f1dc8426cd697de3a122dee7876968dc75fbade72ab612d