Dec 04 20:15:26.889 INFO checking daogangtang/learn-rust-lib against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 20:15:26.890 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 04 20:15:27.365 INFO [stdout] e034c50f972a241ee8871d8723620c6b5b99d79f5e4c77f094481c7b2e2d4f2e
Dec 04 20:15:27.373 INFO running `"docker" "start" "-a" "e034c50f972a241ee8871d8723620c6b5b99d79f5e4c77f094481c7b2e2d4f2e"`
Dec 04 20:15:28.931 INFO [stderr] usermod: no changes
Dec 04 20:15:29.011 INFO [stderr]     Checking c_linked_list v1.1.1
Dec 04 20:15:29.543 INFO [stderr]     Checking get_if_addrs v0.5.3
Dec 04 20:15:30.131 INFO [stderr]     Checking learn-rust-lib v0.1.0 (/source)
Dec 04 20:15:30.579 INFO [stderr] warning: unused imports: `Ipv4Addr`, `Ipv6Addr`
Dec 04 20:15:30.579 INFO [stderr]  --> src/get_if_addrs.rs:4:24
Dec 04 20:15:30.579 INFO [stderr]   |
Dec 04 20:15:30.579 INFO [stderr] 4 | use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
Dec 04 20:15:30.579 INFO [stderr]   |                        ^^^^^^^^  ^^^^^^^^
Dec 04 20:15:30.579 INFO [stderr]   |
Dec 04 20:15:30.579 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 20:15:30.579 INFO [stderr] 
Dec 04 20:15:30.627 INFO [stderr] warning: unreachable pattern
Dec 04 20:15:30.627 INFO [stderr]   --> src/get_if_addrs.rs:28:13
Dec 04 20:15:30.627 INFO [stderr]    |
Dec 04 20:15:30.627 INFO [stderr] 28 |             _ => (),
Dec 04 20:15:30.627 INFO [stderr]    |             ^
Dec 04 20:15:30.627 INFO [stderr]    |
Dec 04 20:15:30.627 INFO [stderr]    = note: #[warn(unreachable_patterns)] on by default
Dec 04 20:15:30.627 INFO [stderr] 
Dec 04 20:15:30.914 INFO [stderr] warning: unused imports: `Ipv4Addr`, `Ipv6Addr`
Dec 04 20:15:30.914 INFO [stderr]  --> src/get_if_addrs.rs:4:24
Dec 04 20:15:30.914 INFO [stderr]   |
Dec 04 20:15:30.914 INFO [stderr] 4 | use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
Dec 04 20:15:30.914 INFO [stderr]   |                        ^^^^^^^^  ^^^^^^^^
Dec 04 20:15:30.914 INFO [stderr]   |
Dec 04 20:15:30.914 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 20:15:30.914 INFO [stderr] 
Dec 04 20:15:30.943 INFO [stderr] warning: unreachable pattern
Dec 04 20:15:30.943 INFO [stderr]   --> src/get_if_addrs.rs:28:13
Dec 04 20:15:30.943 INFO [stderr]    |
Dec 04 20:15:30.943 INFO [stderr] 28 |             _ => (),
Dec 04 20:15:30.943 INFO [stderr]    |             ^
Dec 04 20:15:30.943 INFO [stderr]    |
Dec 04 20:15:30.943 INFO [stderr]    = note: #[warn(unreachable_patterns)] on by default
Dec 04 20:15:30.943 INFO [stderr] 
Dec 04 20:15:30.973 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.01s
Dec 04 20:15:30.977 INFO [stderr] su: No module specific data is present
Dec 04 20:15:31.890 INFO running `"docker" "inspect" "e034c50f972a241ee8871d8723620c6b5b99d79f5e4c77f094481c7b2e2d4f2e"`
Dec 04 20:15:32.183 INFO running `"docker" "rm" "-f" "e034c50f972a241ee8871d8723620c6b5b99d79f5e4c77f094481c7b2e2d4f2e"`
Dec 04 20:15:32.488 INFO [stdout] e034c50f972a241ee8871d8723620c6b5b99d79f5e4c77f094481c7b2e2d4f2e