Dec 04 20:15:20.752 INFO checking daogangtang/learn-rust-lib against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 20:15:20.752 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 04 20:15:21.173 INFO [stdout] 1ba8b31c5bbcefd07bb327a8d71d603554028f03069c38d8b2ff72d6d406666d
Dec 04 20:15:21.176 INFO running `"docker" "start" "-a" "1ba8b31c5bbcefd07bb327a8d71d603554028f03069c38d8b2ff72d6d406666d"`
Dec 04 20:15:22.871 INFO [stderr] usermod: no changes
Dec 04 20:15:22.975 INFO [stderr]     Checking c_linked_list v1.1.1
Dec 04 20:15:23.533 INFO [stderr]     Checking get_if_addrs v0.5.3
Dec 04 20:15:24.100 INFO [stderr]     Checking learn-rust-lib v0.1.0 (/source)
Dec 04 20:15:24.883 INFO [stderr] warning: unused imports: `Ipv4Addr`, `Ipv6Addr`
Dec 04 20:15:24.883 INFO [stderr]  --> src/get_if_addrs.rs:4:24
Dec 04 20:15:24.884 INFO [stderr]   |
Dec 04 20:15:24.884 INFO [stderr] 4 | use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
Dec 04 20:15:24.884 INFO [stderr]   |                        ^^^^^^^^  ^^^^^^^^
Dec 04 20:15:24.885 INFO [stderr]   |
Dec 04 20:15:24.885 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 20:15:24.885 INFO [stderr] 
Dec 04 20:15:24.908 INFO [stderr] warning: unused imports: `Ipv4Addr`, `Ipv6Addr`
Dec 04 20:15:24.908 INFO [stderr]  --> src/get_if_addrs.rs:4:24
Dec 04 20:15:24.908 INFO [stderr]   |
Dec 04 20:15:24.909 INFO [stderr] 4 | use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
Dec 04 20:15:24.909 INFO [stderr]   |                        ^^^^^^^^  ^^^^^^^^
Dec 04 20:15:24.909 INFO [stderr]   |
Dec 04 20:15:24.910 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 20:15:24.910 INFO [stderr] 
Dec 04 20:15:24.941 INFO [stderr] warning: unreachable pattern
Dec 04 20:15:24.942 INFO [stderr]   --> src/get_if_addrs.rs:28:13
Dec 04 20:15:24.942 INFO [stderr]    |
Dec 04 20:15:24.942 INFO [stderr] 28 |             _ => (),
Dec 04 20:15:24.942 INFO [stderr]    |             ^
Dec 04 20:15:24.943 INFO [stderr]    |
Dec 04 20:15:24.943 INFO [stderr]    = note: #[warn(unreachable_patterns)] on by default
Dec 04 20:15:24.943 INFO [stderr] 
Dec 04 20:15:24.955 INFO [stderr] warning: unreachable pattern
Dec 04 20:15:24.956 INFO [stderr]   --> src/get_if_addrs.rs:28:13
Dec 04 20:15:24.956 INFO [stderr]    |
Dec 04 20:15:24.956 INFO [stderr] 28 |             _ => (),
Dec 04 20:15:24.956 INFO [stderr]    |             ^
Dec 04 20:15:24.956 INFO [stderr]    |
Dec 04 20:15:24.956 INFO [stderr]    = note: #[warn(unreachable_patterns)] on by default
Dec 04 20:15:24.956 INFO [stderr] 
Dec 04 20:15:25.019 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.11s
Dec 04 20:15:25.021 INFO [stderr] su: No module specific data is present
Dec 04 20:15:26.157 INFO running `"docker" "inspect" "1ba8b31c5bbcefd07bb327a8d71d603554028f03069c38d8b2ff72d6d406666d"`
Dec 04 20:15:26.531 INFO running `"docker" "rm" "-f" "1ba8b31c5bbcefd07bb327a8d71d603554028f03069c38d8b2ff72d6d406666d"`
Dec 04 20:15:26.806 INFO [stdout] 1ba8b31c5bbcefd07bb327a8d71d603554028f03069c38d8b2ff72d6d406666d