Dec 19 13:38:33.717 INFO checking lintanghui/rckit against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 13:38:33.717 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/lintanghui/rckit:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 13:38:34.152 INFO [stdout] c7123396f2b9bc7b2b57b50cb19fbb34a19fe49ece1823c3b0823c43081961a4
Dec 19 13:38:34.154 INFO running `"docker" "start" "-a" "c7123396f2b9bc7b2b57b50cb19fbb34a19fe49ece1823c3b0823c43081961a4"`
Dec 19 13:38:35.746 INFO [stderr]     Checking ascii v0.9.1
Dec 19 13:38:35.746 INFO [stderr]     Checking memchr v2.1.1
Dec 19 13:38:35.752 INFO [stderr]     Checking mio v0.6.16
Dec 19 13:38:36.578 INFO [stderr]     Checking combine v3.6.3
Dec 19 13:38:37.553 INFO [stderr]     Checking tokio-reactor v0.1.7
Dec 19 13:38:38.444 INFO [stderr]     Checking tokio-tcp v0.1.2
Dec 19 13:38:55.540 INFO [stderr]     Checking redis v0.9.1
Dec 19 13:39:00.020 INFO [stderr]     Checking rckit v0.1.0 (/opt/crater/workdir)
Dec 19 13:39:00.674 INFO [stderr] warning: unused imports: `thread`, `time`
Dec 19 13:39:00.674 INFO [stderr]  --> src/conn.rs:5:11
Dec 19 13:39:00.674 INFO [stderr]   |
Dec 19 13:39:00.674 INFO [stderr] 5 | use std::{thread, time};
Dec 19 13:39:00.674 INFO [stderr]   |           ^^^^^^  ^^^^
Dec 19 13:39:00.674 INFO [stderr]   |
Dec 19 13:39:00.674 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 13:39:00.674 INFO [stderr] 
Dec 19 13:39:00.674 INFO [stderr] warning: unused import: `Role`
Dec 19 13:39:00.674 INFO [stderr]  --> src/create.rs:1:37
Dec 19 13:39:00.674 INFO [stderr]   |
Dec 19 13:39:00.674 INFO [stderr] 1 | use cluster::{Cluster, Error, Node, Role};
Dec 19 13:39:00.674 INFO [stderr]   |                                     ^^^^
Dec 19 13:39:00.674 INFO [stderr] 
Dec 19 13:39:00.770 INFO [stderr] warning: unused imports: `thread`, `time`
Dec 19 13:39:00.770 INFO [stderr]  --> src/conn.rs:5:11
Dec 19 13:39:00.770 INFO [stderr]   |
Dec 19 13:39:00.770 INFO [stderr] 5 | use std::{thread, time};
Dec 19 13:39:00.770 INFO [stderr]   |           ^^^^^^  ^^^^
Dec 19 13:39:00.770 INFO [stderr]   |
Dec 19 13:39:00.770 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 13:39:00.770 INFO [stderr] 
Dec 19 13:39:00.771 INFO [stderr] warning: unused import: `Role`
Dec 19 13:39:00.771 INFO [stderr]  --> src/create.rs:1:37
Dec 19 13:39:00.771 INFO [stderr]   |
Dec 19 13:39:00.771 INFO [stderr] 1 | use cluster::{Cluster, Error, Node, Role};
Dec 19 13:39:00.771 INFO [stderr]   |                                     ^^^^
Dec 19 13:39:00.771 INFO [stderr] 
Dec 19 13:39:01.218 INFO [stderr] warning: variant is never constructed: `None`
Dec 19 13:39:01.218 INFO [stderr]    --> src/cluster.rs:299:5
Dec 19 13:39:01.218 INFO [stderr]     |
Dec 19 13:39:01.218 INFO [stderr] 299 |     None,
Dec 19 13:39:01.218 INFO [stderr]     |     ^^^^
Dec 19 13:39:01.218 INFO [stderr]     |
Dec 19 13:39:01.218 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 13:39:01.218 INFO [stderr] 
Dec 19 13:39:01.218 INFO [stderr] warning: variant `master` should have a camel case name such as `Master`
Dec 19 13:39:01.218 INFO [stderr]   --> src/cluster.rs:27:5
Dec 19 13:39:01.218 INFO [stderr]    |
Dec 19 13:39:01.218 INFO [stderr] 27 |     master,
Dec 19 13:39:01.218 INFO [stderr]    |     ^^^^^^
Dec 19 13:39:01.218 INFO [stderr]    |
Dec 19 13:39:01.218 INFO [stderr]    = note: #[warn(non_camel_case_types)] on by default
Dec 19 13:39:01.218 INFO [stderr] 
Dec 19 13:39:01.218 INFO [stderr] warning: variant `slave` should have a camel case name such as `Slave`
Dec 19 13:39:01.218 INFO [stderr]   --> src/cluster.rs:28:5
Dec 19 13:39:01.218 INFO [stderr]    |
Dec 19 13:39:01.218 INFO [stderr] 28 |     slave,
Dec 19 13:39:01.218 INFO [stderr]    |     ^^^^^
Dec 19 13:39:01.218 INFO [stderr] 
Dec 19 13:39:01.444 INFO [stderr] warning: variant is never constructed: `None`
Dec 19 13:39:01.444 INFO [stderr]    --> src/cluster.rs:299:5
Dec 19 13:39:01.444 INFO [stderr]     |
Dec 19 13:39:01.444 INFO [stderr] 299 |     None,
Dec 19 13:39:01.444 INFO [stderr]     |     ^^^^
Dec 19 13:39:01.444 INFO [stderr]     |
Dec 19 13:39:01.444 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 13:39:01.445 INFO [stderr] 
Dec 19 13:39:01.448 INFO [stderr] warning: variant `master` should have a camel case name such as `Master`
Dec 19 13:39:01.448 INFO [stderr]   --> src/cluster.rs:27:5
Dec 19 13:39:01.448 INFO [stderr]    |
Dec 19 13:39:01.448 INFO [stderr] 27 |     master,
Dec 19 13:39:01.448 INFO [stderr]    |     ^^^^^^
Dec 19 13:39:01.448 INFO [stderr]    |
Dec 19 13:39:01.448 INFO [stderr]    = note: #[warn(non_camel_case_types)] on by default
Dec 19 13:39:01.448 INFO [stderr] 
Dec 19 13:39:01.448 INFO [stderr] warning: variant `slave` should have a camel case name such as `Slave`
Dec 19 13:39:01.448 INFO [stderr]   --> src/cluster.rs:28:5
Dec 19 13:39:01.448 INFO [stderr]    |
Dec 19 13:39:01.448 INFO [stderr] 28 |     slave,
Dec 19 13:39:01.448 INFO [stderr]    |     ^^^^^
Dec 19 13:39:01.448 INFO [stderr] 
Dec 19 13:39:02.071 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.55s
Dec 19 13:39:03.265 INFO running `"docker" "inspect" "c7123396f2b9bc7b2b57b50cb19fbb34a19fe49ece1823c3b0823c43081961a4"`
Dec 19 13:39:03.636 INFO running `"docker" "rm" "-f" "c7123396f2b9bc7b2b57b50cb19fbb34a19fe49ece1823c3b0823c43081961a4"`
Dec 19 13:39:03.960 INFO [stdout] c7123396f2b9bc7b2b57b50cb19fbb34a19fe49ece1823c3b0823c43081961a4