Dec 05 04:40:20.613 INFO checking vertree-0.2.2 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 04:40:20.613 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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"`
Dec 05 04:40:21.123 INFO [stdout] ab25358b9723aeb8b066e153405df5f4ffc45fb20ad7fc6392c55ea8cc61b055
Dec 05 04:40:21.129 INFO running `"docker" "start" "-a" "ab25358b9723aeb8b066e153405df5f4ffc45fb20ad7fc6392c55ea8cc61b055"`
Dec 05 04:40:22.151 INFO [stderr] usermod: no changes
Dec 05 04:40:22.331 INFO [stderr]     Checking rmp-serde v0.13.7
Dec 05 04:40:22.339 INFO [stderr]     Checking env_logger v0.3.5
Dec 05 04:40:23.631 INFO [stderr]     Checking vertree v0.2.2 (/source)
Dec 05 04:40:23.873 INFO [stderr]     Checking quickcheck v0.4.1
Dec 05 04:40:26.051 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:26.051 INFO [stderr]    --> src/tree.rs:268:14
Dec 05 04:40:26.051 INFO [stderr]     |
Dec 05 04:40:26.051 INFO [stderr] 268 |         let (mut queue, version, tree) = {
Dec 05 04:40:26.051 INFO [stderr]     |              ----^^^^^
Dec 05 04:40:26.051 INFO [stderr]     |              |
Dec 05 04:40:26.051 INFO [stderr]     |              help: remove this `mut`
Dec 05 04:40:26.051 INFO [stderr]     |
Dec 05 04:40:26.051 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 04:40:26.051 INFO [stderr] 
Dec 05 04:40:26.051 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:26.051 INFO [stderr]    --> src/tree.rs:282:14
Dec 05 04:40:26.051 INFO [stderr]     |
Dec 05 04:40:26.051 INFO [stderr] 282 |         let (mut queue, version, tree) = {
Dec 05 04:40:26.051 INFO [stderr]     |              ----^^^^^
Dec 05 04:40:26.051 INFO [stderr]     |              |
Dec 05 04:40:26.051 INFO [stderr]     |              help: remove this `mut`
Dec 05 04:40:26.051 INFO [stderr] 
Dec 05 04:40:26.051 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:26.051 INFO [stderr]    --> src/tree.rs:295:14
Dec 05 04:40:26.051 INFO [stderr]     |
Dec 05 04:40:26.051 INFO [stderr] 295 |         let (mut set, version, tree) = {
Dec 05 04:40:26.051 INFO [stderr]     |              ----^^^
Dec 05 04:40:26.051 INFO [stderr]     |              |
Dec 05 04:40:26.051 INFO [stderr]     |              help: remove this `mut`
Dec 05 04:40:26.051 INFO [stderr] 
Dec 05 04:40:26.051 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:26.051 INFO [stderr]    --> src/tree.rs:308:14
Dec 05 04:40:26.051 INFO [stderr]     |
Dec 05 04:40:26.051 INFO [stderr] 308 |         let (mut set, version, tree) = {
Dec 05 04:40:26.051 INFO [stderr]     |              ----^^^
Dec 05 04:40:26.051 INFO [stderr]     |              |
Dec 05 04:40:26.051 INFO [stderr]     |              help: remove this `mut`
Dec 05 04:40:26.051 INFO [stderr] 
Dec 05 04:40:26.051 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:26.051 INFO [stderr]    --> src/tree.rs:322:13
Dec 05 04:40:26.051 INFO [stderr]     |
Dec 05 04:40:26.051 INFO [stderr] 322 |         let mut queue = node.content.get_queue_mut().unwrap();
Dec 05 04:40:26.051 INFO [stderr]     |             ----^^^^^
Dec 05 04:40:26.051 INFO [stderr]     |             |
Dec 05 04:40:26.051 INFO [stderr]     |             help: remove this `mut`
Dec 05 04:40:26.051 INFO [stderr] 
Dec 05 04:40:26.052 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:26.052 INFO [stderr]    --> src/tree.rs:328:13
Dec 05 04:40:26.052 INFO [stderr]     |
Dec 05 04:40:26.052 INFO [stderr] 328 |         let mut queue = node.content.get_set_mut().unwrap();
Dec 05 04:40:26.052 INFO [stderr]     |             ----^^^^^
Dec 05 04:40:26.052 INFO [stderr]     |             |
Dec 05 04:40:26.052 INFO [stderr]     |             help: remove this `mut`
Dec 05 04:40:26.052 INFO [stderr] 
Dec 05 04:40:28.983 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:28.983 INFO [stderr]    --> src/tree.rs:268:14
Dec 05 04:40:28.983 INFO [stderr]     |
Dec 05 04:40:28.983 INFO [stderr] 268 |         let (mut queue, version, tree) = {
Dec 05 04:40:28.983 INFO [stderr]     |              ----^^^^^
Dec 05 04:40:28.983 INFO [stderr]     |              |
Dec 05 04:40:28.983 INFO [stderr]     |              help: remove this `mut`
Dec 05 04:40:28.983 INFO [stderr]     |
Dec 05 04:40:28.983 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 04:40:28.983 INFO [stderr] 
Dec 05 04:40:28.983 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:28.983 INFO [stderr]    --> src/tree.rs:282:14
Dec 05 04:40:28.983 INFO [stderr]     |
Dec 05 04:40:28.983 INFO [stderr] 282 |         let (mut queue, version, tree) = {
Dec 05 04:40:28.983 INFO [stderr]     |              ----^^^^^
Dec 05 04:40:28.983 INFO [stderr]     |              |
Dec 05 04:40:28.983 INFO [stderr]     |              help: remove this `mut`
Dec 05 04:40:28.983 INFO [stderr] 
Dec 05 04:40:28.983 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:28.983 INFO [stderr]    --> src/tree.rs:295:14
Dec 05 04:40:28.983 INFO [stderr]     |
Dec 05 04:40:28.983 INFO [stderr] 295 |         let (mut set, version, tree) = {
Dec 05 04:40:28.983 INFO [stderr]     |              ----^^^
Dec 05 04:40:28.983 INFO [stderr]     |              |
Dec 05 04:40:28.983 INFO [stderr]     |              help: remove this `mut`
Dec 05 04:40:28.983 INFO [stderr] 
Dec 05 04:40:28.983 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:28.983 INFO [stderr]    --> src/tree.rs:308:14
Dec 05 04:40:28.983 INFO [stderr]     |
Dec 05 04:40:28.983 INFO [stderr] 308 |         let (mut set, version, tree) = {
Dec 05 04:40:28.983 INFO [stderr]     |              ----^^^
Dec 05 04:40:28.983 INFO [stderr]     |              |
Dec 05 04:40:28.983 INFO [stderr]     |              help: remove this `mut`
Dec 05 04:40:28.983 INFO [stderr] 
Dec 05 04:40:28.987 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:28.987 INFO [stderr]    --> src/tree.rs:322:13
Dec 05 04:40:28.987 INFO [stderr]     |
Dec 05 04:40:28.987 INFO [stderr] 322 |         let mut queue = node.content.get_queue_mut().unwrap();
Dec 05 04:40:28.987 INFO [stderr]     |             ----^^^^^
Dec 05 04:40:28.987 INFO [stderr]     |             |
Dec 05 04:40:28.987 INFO [stderr]     |             help: remove this `mut`
Dec 05 04:40:28.987 INFO [stderr] 
Dec 05 04:40:28.987 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:28.987 INFO [stderr]    --> src/tree.rs:328:13
Dec 05 04:40:28.987 INFO [stderr]     |
Dec 05 04:40:28.987 INFO [stderr] 328 |         let mut queue = node.content.get_set_mut().unwrap();
Dec 05 04:40:28.987 INFO [stderr]     |             ----^^^^^
Dec 05 04:40:28.987 INFO [stderr]     |             |
Dec 05 04:40:28.987 INFO [stderr]     |             help: remove this `mut`
Dec 05 04:40:28.987 INFO [stderr] 
Dec 05 04:40:29.279 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.10s
Dec 05 04:40:29.285 INFO [stderr] su: No module specific data is present
Dec 05 04:40:29.955 INFO running `"docker" "inspect" "ab25358b9723aeb8b066e153405df5f4ffc45fb20ad7fc6392c55ea8cc61b055"`
Dec 05 04:40:30.184 INFO running `"docker" "rm" "-f" "ab25358b9723aeb8b066e153405df5f4ffc45fb20ad7fc6392c55ea8cc61b055"`
Dec 05 04:40:30.431 INFO [stdout] ab25358b9723aeb8b066e153405df5f4ffc45fb20ad7fc6392c55ea8cc61b055