Oct 13 06:37:38.595 INFO checking vertree-0.2.2 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 06:37:38.595 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-6/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +4021bd0b3c5815b087d6db10ce461e7e4854ade7-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 13 06:37:38.865 INFO blam! b3aaa834efdcafc01bf862223279651a4622f8624c2a51d1f237ad715ab05503
Oct 13 06:37:38.867 INFO running `"docker" "start" "-a" "b3aaa834efdcafc01bf862223279651a4622f8624c2a51d1f237ad715ab05503"`
Oct 13 06:37:39.276 INFO kablam! usermod: no changes
Oct 13 06:37:39.383 INFO kablam!    Compiling serde v1.0.79
Oct 13 06:37:39.389 INFO kablam!     Checking quickcheck v0.4.1
Oct 13 06:37:51.607 INFO kablam!     Checking rmp-serde v0.13.7
Oct 13 06:37:52.740 INFO kablam!     Checking vertree v0.2.2 (/source)
Oct 13 06:37:55.378 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:37:55.378 INFO kablam!    --> src/tree.rs:268:14
Oct 13 06:37:55.379 INFO kablam!     |
Oct 13 06:37:55.379 INFO kablam! 268 |         let (mut queue, version, tree) = {
Oct 13 06:37:55.379 INFO kablam!     |              ----^^^^^
Oct 13 06:37:55.379 INFO kablam!     |              |
Oct 13 06:37:55.379 INFO kablam!     |              help: remove this `mut`
Oct 13 06:37:55.379 INFO kablam!     |
Oct 13 06:37:55.379 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 13 06:37:55.380 INFO kablam! 
Oct 13 06:37:55.380 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:37:55.380 INFO kablam!    --> src/tree.rs:282:14
Oct 13 06:37:55.381 INFO kablam!     |
Oct 13 06:37:55.381 INFO kablam! 282 |         let (mut queue, version, tree) = {
Oct 13 06:37:55.381 INFO kablam!     |              ----^^^^^
Oct 13 06:37:55.381 INFO kablam!     |              |
Oct 13 06:37:55.382 INFO kablam!     |              help: remove this `mut`
Oct 13 06:37:55.382 INFO kablam! 
Oct 13 06:37:55.396 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:37:55.397 INFO kablam!    --> src/tree.rs:295:14
Oct 13 06:37:55.397 INFO kablam!     |
Oct 13 06:37:55.397 INFO kablam! 295 |         let (mut set, version, tree) = {
Oct 13 06:37:55.398 INFO kablam!     |              ----^^^
Oct 13 06:37:55.398 INFO kablam!     |              |
Oct 13 06:37:55.398 INFO kablam!     |              help: remove this `mut`
Oct 13 06:37:55.398 INFO kablam! 
Oct 13 06:37:55.399 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:37:55.399 INFO kablam!    --> src/tree.rs:308:14
Oct 13 06:37:55.399 INFO kablam!     |
Oct 13 06:37:55.400 INFO kablam! 308 |         let (mut set, version, tree) = {
Oct 13 06:37:55.400 INFO kablam!     |              ----^^^
Oct 13 06:37:55.400 INFO kablam!     |              |
Oct 13 06:37:55.400 INFO kablam!     |              help: remove this `mut`
Oct 13 06:37:55.401 INFO kablam! 
Oct 13 06:37:55.401 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:37:55.401 INFO kablam!    --> src/tree.rs:322:13
Oct 13 06:37:55.402 INFO kablam!     |
Oct 13 06:37:55.402 INFO kablam! 322 |         let mut queue = node.content.get_queue_mut().unwrap();
Oct 13 06:37:55.402 INFO kablam!     |             ----^^^^^
Oct 13 06:37:55.402 INFO kablam!     |             |
Oct 13 06:37:55.403 INFO kablam!     |             help: remove this `mut`
Oct 13 06:37:55.403 INFO kablam! 
Oct 13 06:37:55.403 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:37:55.404 INFO kablam!    --> src/tree.rs:328:13
Oct 13 06:37:55.404 INFO kablam!     |
Oct 13 06:37:55.404 INFO kablam! 328 |         let mut queue = node.content.get_set_mut().unwrap();
Oct 13 06:37:55.404 INFO kablam!     |             ----^^^^^
Oct 13 06:37:55.405 INFO kablam!     |             |
Oct 13 06:37:55.405 INFO kablam!     |             help: remove this `mut`
Oct 13 06:37:55.405 INFO kablam! 
Oct 13 06:37:57.024 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:37:57.024 INFO kablam!    --> src/tree.rs:268:14
Oct 13 06:37:57.024 INFO kablam!     |
Oct 13 06:37:57.024 INFO kablam! 268 |         let (mut queue, version, tree) = {
Oct 13 06:37:57.024 INFO kablam!     |              ----^^^^^
Oct 13 06:37:57.024 INFO kablam!     |              |
Oct 13 06:37:57.024 INFO kablam!     |              help: remove this `mut`
Oct 13 06:37:57.024 INFO kablam!     |
Oct 13 06:37:57.024 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 13 06:37:57.024 INFO kablam! 
Oct 13 06:37:57.024 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:37:57.024 INFO kablam!    --> src/tree.rs:282:14
Oct 13 06:37:57.024 INFO kablam!     |
Oct 13 06:37:57.024 INFO kablam! 282 |         let (mut queue, version, tree) = {
Oct 13 06:37:57.024 INFO kablam!     |              ----^^^^^
Oct 13 06:37:57.024 INFO kablam!     |              |
Oct 13 06:37:57.024 INFO kablam!     |              help: remove this `mut`
Oct 13 06:37:57.024 INFO kablam! 
Oct 13 06:37:57.024 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:37:57.024 INFO kablam!    --> src/tree.rs:295:14
Oct 13 06:37:57.024 INFO kablam!     |
Oct 13 06:37:57.024 INFO kablam! 295 |         let (mut set, version, tree) = {
Oct 13 06:37:57.024 INFO kablam!     |              ----^^^
Oct 13 06:37:57.024 INFO kablam!     |              |
Oct 13 06:37:57.024 INFO kablam!     |              help: remove this `mut`
Oct 13 06:37:57.024 INFO kablam! 
Oct 13 06:37:57.024 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:37:57.024 INFO kablam!    --> src/tree.rs:308:14
Oct 13 06:37:57.024 INFO kablam!     |
Oct 13 06:37:57.024 INFO kablam! 308 |         let (mut set, version, tree) = {
Oct 13 06:37:57.024 INFO kablam!     |              ----^^^
Oct 13 06:37:57.024 INFO kablam!     |              |
Oct 13 06:37:57.024 INFO kablam!     |              help: remove this `mut`
Oct 13 06:37:57.024 INFO kablam! 
Oct 13 06:37:57.024 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:37:57.024 INFO kablam!    --> src/tree.rs:322:13
Oct 13 06:37:57.024 INFO kablam!     |
Oct 13 06:37:57.024 INFO kablam! 322 |         let mut queue = node.content.get_queue_mut().unwrap();
Oct 13 06:37:57.024 INFO kablam!     |             ----^^^^^
Oct 13 06:37:57.024 INFO kablam!     |             |
Oct 13 06:37:57.024 INFO kablam!     |             help: remove this `mut`
Oct 13 06:37:57.024 INFO kablam! 
Oct 13 06:37:57.024 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:37:57.024 INFO kablam!    --> src/tree.rs:328:13
Oct 13 06:37:57.024 INFO kablam!     |
Oct 13 06:37:57.025 INFO kablam! 328 |         let mut queue = node.content.get_set_mut().unwrap();
Oct 13 06:37:57.025 INFO kablam!     |             ----^^^^^
Oct 13 06:37:57.025 INFO kablam!     |             |
Oct 13 06:37:57.025 INFO kablam!     |             help: remove this `mut`
Oct 13 06:37:57.025 INFO kablam! 
Oct 13 06:37:58.314 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 19.02s
Oct 13 06:37:58.340 INFO kablam! su: No module specific data is present
Oct 13 06:37:58.915 INFO running `"docker" "rm" "-f" "b3aaa834efdcafc01bf862223279651a4622f8624c2a51d1f237ad715ab05503"`
Oct 13 06:37:59.224 INFO blam! b3aaa834efdcafc01bf862223279651a4622f8624c2a51d1f237ad715ab05503