Dec 11 20:08:12.681 INFO checking daogangtang/learn-rust-lib against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 20:08:12.681 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 11 20:08:13.230 INFO [stdout] a0cd3b980429dfcd4f7c781cbcbe09f4327fcaa1261e6fb7b427f89f9cd8be70
Dec 11 20:08:13.232 INFO running `"docker" "start" "-a" "a0cd3b980429dfcd4f7c781cbcbe09f4327fcaa1261e6fb7b427f89f9cd8be70"`
Dec 11 20:08:14.799 INFO [stderr] usermod: no changes
Dec 11 20:08:14.852 INFO [stderr]     Checking c_linked_list v1.1.1
Dec 11 20:08:15.347 INFO [stderr]     Checking get_if_addrs v0.5.3
Dec 11 20:08:15.923 INFO [stderr]     Checking learn-rust-lib v0.1.0 (/source)
Dec 11 20:08:16.680 INFO [stderr] warning: unused imports: `Ipv4Addr`, `Ipv6Addr`
Dec 11 20:08:16.680 INFO [stderr]  --> src/get_if_addrs.rs:4:24
Dec 11 20:08:16.680 INFO [stderr]   |
Dec 11 20:08:16.680 INFO [stderr] 4 | use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
Dec 11 20:08:16.680 INFO [stderr]   |                        ^^^^^^^^  ^^^^^^^^
Dec 11 20:08:16.680 INFO [stderr]   |
Dec 11 20:08:16.680 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 20:08:16.680 INFO [stderr] 
Dec 11 20:08:16.704 INFO [stderr] warning: unreachable pattern
Dec 11 20:08:16.704 INFO [stderr]   --> src/get_if_addrs.rs:28:13
Dec 11 20:08:16.704 INFO [stderr]    |
Dec 11 20:08:16.704 INFO [stderr] 28 |             _ => (),
Dec 11 20:08:16.704 INFO [stderr]    |             ^
Dec 11 20:08:16.704 INFO [stderr]    |
Dec 11 20:08:16.704 INFO [stderr]    = note: #[warn(unreachable_patterns)] on by default
Dec 11 20:08:16.704 INFO [stderr] 
Dec 11 20:08:16.708 INFO [stderr] warning: unused imports: `Ipv4Addr`, `Ipv6Addr`
Dec 11 20:08:16.708 INFO [stderr]  --> src/get_if_addrs.rs:4:24
Dec 11 20:08:16.708 INFO [stderr]   |
Dec 11 20:08:16.708 INFO [stderr] 4 | use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
Dec 11 20:08:16.708 INFO [stderr]   |                        ^^^^^^^^  ^^^^^^^^
Dec 11 20:08:16.708 INFO [stderr]   |
Dec 11 20:08:16.708 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 20:08:16.708 INFO [stderr] 
Dec 11 20:08:16.740 INFO [stderr] warning: unreachable pattern
Dec 11 20:08:16.740 INFO [stderr]   --> src/get_if_addrs.rs:28:13
Dec 11 20:08:16.740 INFO [stderr]    |
Dec 11 20:08:16.740 INFO [stderr] 28 |             _ => (),
Dec 11 20:08:16.740 INFO [stderr]    |             ^
Dec 11 20:08:16.740 INFO [stderr]    |
Dec 11 20:08:16.740 INFO [stderr]    = note: #[warn(unreachable_patterns)] on by default
Dec 11 20:08:16.740 INFO [stderr] 
Dec 11 20:08:16.804 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.97s
Dec 11 20:08:16.813 INFO [stderr] su: No module specific data is present
Dec 11 20:08:17.402 INFO running `"docker" "inspect" "a0cd3b980429dfcd4f7c781cbcbe09f4327fcaa1261e6fb7b427f89f9cd8be70"`
Dec 11 20:08:17.679 INFO running `"docker" "rm" "-f" "a0cd3b980429dfcd4f7c781cbcbe09f4327fcaa1261e6fb7b427f89f9cd8be70"`
Dec 11 20:08:17.890 INFO [stdout] a0cd3b980429dfcd4f7c781cbcbe09f4327fcaa1261e6fb7b427f89f9cd8be70