Dec 05 04:40:21.325 INFO checking vertree-0.2.2 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 04:40:21.325 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04:40:21.858 INFO [stdout] f0c046ecc264c607d819cba6255561180749b2df257cc17db40595678286311b
Dec 05 04:40:21.864 INFO running `"docker" "start" "-a" "f0c046ecc264c607d819cba6255561180749b2df257cc17db40595678286311b"`
Dec 05 04:40:22.673 INFO [stderr] usermod: no changes
Dec 05 04:40:22.879 INFO [stderr]     Checking assert_matches v1.3.0
Dec 05 04:40:22.879 INFO [stderr]     Checking memchr v0.1.11
Dec 05 04:40:22.879 INFO [stderr]     Checking thread-id v2.0.0
Dec 05 04:40:22.907 INFO [stderr]     Checking rmp v0.8.7
Dec 05 04:40:24.000 INFO [stderr]     Checking aho-corasick v0.5.3
Dec 05 04:40:24.199 INFO [stderr]     Checking thread_local v0.2.7
Dec 05 04:40:24.367 INFO [stderr]     Checking rmp-serde v0.13.7
Dec 05 04:40:25.668 INFO [stderr]     Checking regex v0.1.80
Dec 05 04:40:25.987 INFO [stderr]     Checking vertree v0.2.2 (/source)
Dec 05 04:40:27.739 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:27.739 INFO [stderr]    --> src/tree.rs:268:14
Dec 05 04:40:27.739 INFO [stderr]     |
Dec 05 04:40:27.739 INFO [stderr] 268 |         let (mut queue, version, tree) = {
Dec 05 04:40:27.739 INFO [stderr]     |              ----^^^^^
Dec 05 04:40:27.739 INFO [stderr]     |              |
Dec 05 04:40:27.739 INFO [stderr]     |              help: remove this `mut`
Dec 05 04:40:27.739 INFO [stderr]     |
Dec 05 04:40:27.739 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 04:40:27.739 INFO [stderr] 
Dec 05 04:40:27.739 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:27.739 INFO [stderr]    --> src/tree.rs:282:14
Dec 05 04:40:27.739 INFO [stderr]     |
Dec 05 04:40:27.739 INFO [stderr] 282 |         let (mut queue, version, tree) = {
Dec 05 04:40:27.739 INFO [stderr]     |              ----^^^^^
Dec 05 04:40:27.739 INFO [stderr]     |              |
Dec 05 04:40:27.739 INFO [stderr]     |              help: remove this `mut`
Dec 05 04:40:27.739 INFO [stderr] 
Dec 05 04:40:27.743 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:27.743 INFO [stderr]    --> src/tree.rs:295:14
Dec 05 04:40:27.743 INFO [stderr]     |
Dec 05 04:40:27.743 INFO [stderr] 295 |         let (mut set, version, tree) = {
Dec 05 04:40:27.743 INFO [stderr]     |              ----^^^
Dec 05 04:40:27.743 INFO [stderr]     |              |
Dec 05 04:40:27.743 INFO [stderr]     |              help: remove this `mut`
Dec 05 04:40:27.743 INFO [stderr] 
Dec 05 04:40:27.743 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:27.743 INFO [stderr]    --> src/tree.rs:308:14
Dec 05 04:40:27.743 INFO [stderr]     |
Dec 05 04:40:27.743 INFO [stderr] 308 |         let (mut set, version, tree) = {
Dec 05 04:40:27.743 INFO [stderr]     |              ----^^^
Dec 05 04:40:27.743 INFO [stderr]     |              |
Dec 05 04:40:27.743 INFO [stderr]     |              help: remove this `mut`
Dec 05 04:40:27.743 INFO [stderr] 
Dec 05 04:40:27.743 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:27.743 INFO [stderr]    --> src/tree.rs:322:13
Dec 05 04:40:27.743 INFO [stderr]     |
Dec 05 04:40:27.743 INFO [stderr] 322 |         let mut queue = node.content.get_queue_mut().unwrap();
Dec 05 04:40:27.743 INFO [stderr]     |             ----^^^^^
Dec 05 04:40:27.743 INFO [stderr]     |             |
Dec 05 04:40:27.743 INFO [stderr]     |             help: remove this `mut`
Dec 05 04:40:27.743 INFO [stderr] 
Dec 05 04:40:27.743 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:27.743 INFO [stderr]    --> src/tree.rs:328:13
Dec 05 04:40:27.743 INFO [stderr]     |
Dec 05 04:40:27.743 INFO [stderr] 328 |         let mut queue = node.content.get_set_mut().unwrap();
Dec 05 04:40:27.743 INFO [stderr]     |             ----^^^^^
Dec 05 04:40:27.743 INFO [stderr]     |             |
Dec 05 04:40:27.743 INFO [stderr]     |             help: remove this `mut`
Dec 05 04:40:27.743 INFO [stderr] 
Dec 05 04:40:27.830 INFO [stderr]     Checking env_logger v0.3.5
Dec 05 04:40:28.771 INFO [stderr]     Checking quickcheck v0.4.1
Dec 05 04:40:32.955 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:32.955 INFO [stderr]    --> src/tree.rs:268:14
Dec 05 04:40:32.955 INFO [stderr]     |
Dec 05 04:40:32.955 INFO [stderr] 268 |         let (mut queue, version, tree) = {
Dec 05 04:40:32.955 INFO [stderr]     |              ----^^^^^
Dec 05 04:40:32.955 INFO [stderr]     |              |
Dec 05 04:40:32.955 INFO [stderr]     |              help: remove this `mut`
Dec 05 04:40:32.955 INFO [stderr]     |
Dec 05 04:40:32.955 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 04:40:32.955 INFO [stderr] 
Dec 05 04:40:32.955 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:32.955 INFO [stderr]    --> src/tree.rs:282:14
Dec 05 04:40:32.955 INFO [stderr]     |
Dec 05 04:40:32.955 INFO [stderr] 282 |         let (mut queue, version, tree) = {
Dec 05 04:40:32.955 INFO [stderr]     |              ----^^^^^
Dec 05 04:40:32.955 INFO [stderr]     |              |
Dec 05 04:40:32.955 INFO [stderr]     |              help: remove this `mut`
Dec 05 04:40:32.955 INFO [stderr] 
Dec 05 04:40:32.959 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:32.959 INFO [stderr]    --> src/tree.rs:295:14
Dec 05 04:40:32.959 INFO [stderr]     |
Dec 05 04:40:32.959 INFO [stderr] 295 |         let (mut set, version, tree) = {
Dec 05 04:40:32.959 INFO [stderr]     |              ----^^^
Dec 05 04:40:32.959 INFO [stderr]     |              |
Dec 05 04:40:32.959 INFO [stderr]     |              help: remove this `mut`
Dec 05 04:40:32.959 INFO [stderr] 
Dec 05 04:40:32.959 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:32.959 INFO [stderr]    --> src/tree.rs:308:14
Dec 05 04:40:32.959 INFO [stderr]     |
Dec 05 04:40:32.959 INFO [stderr] 308 |         let (mut set, version, tree) = {
Dec 05 04:40:32.959 INFO [stderr]     |              ----^^^
Dec 05 04:40:32.959 INFO [stderr]     |              |
Dec 05 04:40:32.959 INFO [stderr]     |              help: remove this `mut`
Dec 05 04:40:32.959 INFO [stderr] 
Dec 05 04:40:32.959 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:32.959 INFO [stderr]    --> src/tree.rs:322:13
Dec 05 04:40:32.959 INFO [stderr]     |
Dec 05 04:40:32.959 INFO [stderr] 322 |         let mut queue = node.content.get_queue_mut().unwrap();
Dec 05 04:40:32.959 INFO [stderr]     |             ----^^^^^
Dec 05 04:40:32.959 INFO [stderr]     |             |
Dec 05 04:40:32.959 INFO [stderr]     |             help: remove this `mut`
Dec 05 04:40:32.959 INFO [stderr] 
Dec 05 04:40:32.959 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:40:32.959 INFO [stderr]    --> src/tree.rs:328:13
Dec 05 04:40:32.959 INFO [stderr]     |
Dec 05 04:40:32.959 INFO [stderr] 328 |         let mut queue = node.content.get_set_mut().unwrap();
Dec 05 04:40:32.959 INFO [stderr]     |             ----^^^^^
Dec 05 04:40:32.959 INFO [stderr]     |             |
Dec 05 04:40:32.959 INFO [stderr]     |             help: remove this `mut`
Dec 05 04:40:32.959 INFO [stderr] 
Dec 05 04:40:33.211 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.51s
Dec 05 04:40:33.216 INFO [stderr] su: No module specific data is present
Dec 05 04:40:33.477 INFO running `"docker" "inspect" "f0c046ecc264c607d819cba6255561180749b2df257cc17db40595678286311b"`
Dec 05 04:40:33.557 INFO running `"docker" "rm" "-f" "f0c046ecc264c607d819cba6255561180749b2df257cc17db40595678286311b"`
Dec 05 04:40:33.651 INFO [stdout] f0c046ecc264c607d819cba6255561180749b2df257cc17db40595678286311b