Dec 18 16:54:43.560 INFO checking duckdns-0.1.1 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 16:54:43.560 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/duckdns/0.1.1:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 16:54:43.726 INFO [stdout] 77dacc36404b90e536061edb453d0cac7b1b7d5f038cec8c2a5ca0c6ef61e37c
Dec 18 16:54:43.728 INFO running `"docker" "start" "-a" "77dacc36404b90e536061edb453d0cac7b1b7d5f038cec8c2a5ca0c6ef61e37c"`
Dec 18 16:54:44.833 INFO [stderr]    Compiling syn v0.14.9
Dec 18 16:54:44.833 INFO [stderr]     Checking error-chain v0.11.0
Dec 18 16:54:44.836 INFO [stderr]     Checking duckdns v0.1.1 (/opt/crater/workdir)
Dec 18 16:54:55.508 INFO [stderr]    Compiling derive-error-chain v0.11.2
Dec 18 16:55:00.624 INFO [stderr]     Checking dotenv v0.11.0
Dec 18 16:55:03.852 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 16:55:03.852 INFO [stderr]  --> examples/update.rs:6:5
Dec 18 16:55:03.852 INFO [stderr]   |
Dec 18 16:55:03.852 INFO [stderr] 6 | /     duckdns::DuckDns::new(token)
Dec 18 16:55:03.852 INFO [stderr] 7 | |         .domains("duckdns-rs")
Dec 18 16:55:03.852 INFO [stderr] 8 | |         .ipv4("123.45.67.89")
Dec 18 16:55:03.852 INFO [stderr] 9 | |         .update();
Dec 18 16:55:03.852 INFO [stderr]   | |__________________^
Dec 18 16:55:03.852 INFO [stderr]   |
Dec 18 16:55:03.852 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 18 16:55:03.852 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 16:55:03.852 INFO [stderr] 
Dec 18 16:55:03.883 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.36s
Dec 18 16:55:04.221 INFO running `"docker" "inspect" "77dacc36404b90e536061edb453d0cac7b1b7d5f038cec8c2a5ca0c6ef61e37c"`
Dec 18 16:55:04.348 INFO running `"docker" "rm" "-f" "77dacc36404b90e536061edb453d0cac7b1b7d5f038cec8c2a5ca0c6ef61e37c"`
Dec 18 16:55:04.476 INFO [stdout] 77dacc36404b90e536061edb453d0cac7b1b7d5f038cec8c2a5ca0c6ef61e37c