Dec 19 20:15:23.601 INFO checking aspera-non-spernit/fancy against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 20:15:23.601 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/aspera-non-spernit/fancy:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 20:15:24.152 INFO [stdout] 875c27617c68f56585bd31de85ab7939148886330a7f0410a80f657b1df36f24
Dec 19 20:15:24.158 INFO running `"docker" "start" "-a" "875c27617c68f56585bd31de85ab7939148886330a7f0410a80f657b1df36f24"`
Dec 19 20:15:25.932 INFO [stderr]     Checking unix_socket v0.5.0
Dec 19 20:15:26.421 INFO [stderr]     Checking syslog v3.3.0
Dec 19 20:15:26.920 INFO [stderr]     Checking fancy v0.1.0 (/opt/crater/workdir)
Dec 19 20:15:30.060 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:15:30.061 INFO [stderr]   --> examples/default.rs:16:5
Dec 19 20:15:30.061 INFO [stderr]    |
Dec 19 20:15:30.061 INFO [stderr] 16 |     logger.send(Severity::LOG_INFO, ["Fancy: ", &env.description, " loaded"].concat());
Dec 19 20:15:30.061 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:15:30.061 INFO [stderr]    |
Dec 19 20:15:30.061 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 20:15:30.061 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:15:30.061 INFO [stderr] 
Dec 19 20:15:30.061 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:15:30.061 INFO [stderr]   --> examples/default.rs:42:17
Dec 19 20:15:30.061 INFO [stderr]    |
Dec 19 20:15:30.061 INFO [stderr] 42 |                 logger.send(Severity::LOG_INFO, ["Fancy: ", "adjusting Fan ", &pipe.fan.id, " to ", &(step.rpm.to_string()), " rpm"].concat());
Dec 19 20:15:30.061 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:15:30.061 INFO [stderr]    |
Dec 19 20:15:30.061 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:15:30.061 INFO [stderr] 
Dec 19 20:15:30.121 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.31s
Dec 19 20:15:30.928 INFO running `"docker" "inspect" "875c27617c68f56585bd31de85ab7939148886330a7f0410a80f657b1df36f24"`
Dec 19 20:15:31.296 INFO running `"docker" "rm" "-f" "875c27617c68f56585bd31de85ab7939148886330a7f0410a80f657b1df36f24"`
Dec 19 20:15:31.688 INFO [stdout] 875c27617c68f56585bd31de85ab7939148886330a7f0410a80f657b1df36f24