Dec 19 18:23:26.418 INFO checking daogangtang/learn-rust-lib against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 18:23:26.418 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/daogangtang/learn-rust-lib:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 18:23:26.836 INFO [stdout] a826be00e7d4bc46d98b157692ea161a88b5ea33cd0cad6ebdc93a7541639979
Dec 19 18:23:26.844 INFO running `"docker" "start" "-a" "a826be00e7d4bc46d98b157692ea161a88b5ea33cd0cad6ebdc93a7541639979"`
Dec 19 18:23:28.571 INFO [stderr]     Blocking waiting for file lock on the registry index
Dec 19 18:23:28.648 INFO [stderr]     Checking get_if_addrs v0.5.3
Dec 19 18:23:29.068 INFO [stderr]     Checking learn-rust-lib v0.1.0 (/opt/crater/workdir)
Dec 19 18:23:29.411 INFO [stderr] warning: unused imports: `Ipv4Addr`, `Ipv6Addr`
Dec 19 18:23:29.411 INFO [stderr]  --> src/get_if_addrs.rs:4:24
Dec 19 18:23:29.412 INFO [stderr]   |
Dec 19 18:23:29.412 INFO [stderr] 4 | use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
Dec 19 18:23:29.412 INFO [stderr]   |                        ^^^^^^^^  ^^^^^^^^
Dec 19 18:23:29.412 INFO [stderr]   |
Dec 19 18:23:29.412 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 18:23:29.412 INFO [stderr] 
Dec 19 18:23:29.452 INFO [stderr] warning: unreachable pattern
Dec 19 18:23:29.452 INFO [stderr]   --> src/get_if_addrs.rs:28:13
Dec 19 18:23:29.452 INFO [stderr]    |
Dec 19 18:23:29.452 INFO [stderr] 28 |             _ => (),
Dec 19 18:23:29.452 INFO [stderr]    |             ^
Dec 19 18:23:29.452 INFO [stderr]    |
Dec 19 18:23:29.452 INFO [stderr]    = note: #[warn(unreachable_patterns)] on by default
Dec 19 18:23:29.452 INFO [stderr] 
Dec 19 18:23:29.472 INFO [stderr] warning: unused imports: `Ipv4Addr`, `Ipv6Addr`
Dec 19 18:23:29.472 INFO [stderr]  --> src/get_if_addrs.rs:4:24
Dec 19 18:23:29.472 INFO [stderr]   |
Dec 19 18:23:29.472 INFO [stderr] 4 | use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
Dec 19 18:23:29.472 INFO [stderr]   |                        ^^^^^^^^  ^^^^^^^^
Dec 19 18:23:29.472 INFO [stderr]   |
Dec 19 18:23:29.472 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 18:23:29.472 INFO [stderr] 
Dec 19 18:23:29.539 INFO [stderr] warning: unreachable pattern
Dec 19 18:23:29.539 INFO [stderr]   --> src/get_if_addrs.rs:28:13
Dec 19 18:23:29.540 INFO [stderr]    |
Dec 19 18:23:29.540 INFO [stderr] 28 |             _ => (),
Dec 19 18:23:29.540 INFO [stderr]    |             ^
Dec 19 18:23:29.540 INFO [stderr]    |
Dec 19 18:23:29.540 INFO [stderr]    = note: #[warn(unreachable_patterns)] on by default
Dec 19 18:23:29.540 INFO [stderr] 
Dec 19 18:23:29.586 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
Dec 19 18:23:30.254 INFO running `"docker" "inspect" "a826be00e7d4bc46d98b157692ea161a88b5ea33cd0cad6ebdc93a7541639979"`
Dec 19 18:23:30.460 INFO running `"docker" "rm" "-f" "a826be00e7d4bc46d98b157692ea161a88b5ea33cd0cad6ebdc93a7541639979"`
Dec 19 18:23:30.654 INFO [stdout] a826be00e7d4bc46d98b157692ea161a88b5ea33cd0cad6ebdc93a7541639979