Dec 19 20:07:59.358 INFO checking azengard/hello-rust against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 20:07:59.358 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/azengard/hello-rust:/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 20:07:59.914 INFO [stdout] fff8f64b35adc5bad997ffb08047ee9380274136c21bde7ebc6d793c0f18ef47
Dec 19 20:07:59.916 INFO running `"docker" "start" "-a" "fff8f64b35adc5bad997ffb08047ee9380274136c21bde7ebc6d793c0f18ef47"`
Dec 19 20:08:01.596 INFO [stderr]     Checking hello-rust v0.1.0 (/opt/crater/workdir)
Dec 19 20:08:02.000 INFO [stderr] warning: struct is never constructed: `Nil`
Dec 19 20:08:02.000 INFO [stderr]   --> src/main.rs:80:1
Dec 19 20:08:02.000 INFO [stderr]    |
Dec 19 20:08:02.000 INFO [stderr] 80 | struct Nil; // unit struct
Dec 19 20:08:02.000 INFO [stderr]    | ^^^^^^^^^^^
Dec 19 20:08:02.000 INFO [stderr]    |
Dec 19 20:08:02.000 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 20:08:02.000 INFO [stderr] 
Dec 19 20:08:02.000 INFO [stderr] warning: struct is never constructed: `Pair`
Dec 19 20:08:02.000 INFO [stderr]   --> src/main.rs:82:1
Dec 19 20:08:02.000 INFO [stderr]    |
Dec 19 20:08:02.000 INFO [stderr] 82 | struct Pair(i32, f32); //tuple struct
Dec 19 20:08:02.000 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:08:02.000 INFO [stderr] 
Dec 19 20:08:02.076 INFO [stderr] warning: struct is never constructed: `Nil`
Dec 19 20:08:02.079 INFO [stderr]   --> src/main.rs:80:1
Dec 19 20:08:02.079 INFO [stderr]    |
Dec 19 20:08:02.079 INFO [stderr] 80 | struct Nil; // unit struct
Dec 19 20:08:02.079 INFO [stderr]    | ^^^^^^^^^^^
Dec 19 20:08:02.079 INFO [stderr]    |
Dec 19 20:08:02.079 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 20:08:02.079 INFO [stderr] 
Dec 19 20:08:02.079 INFO [stderr] warning: struct is never constructed: `Pair`
Dec 19 20:08:02.079 INFO [stderr]   --> src/main.rs:82:1
Dec 19 20:08:02.079 INFO [stderr]    |
Dec 19 20:08:02.079 INFO [stderr] 82 | struct Pair(i32, f32); //tuple struct
Dec 19 20:08:02.079 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:08:02.079 INFO [stderr] 
Dec 19 20:08:02.114 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Dec 19 20:08:02.728 INFO running `"docker" "inspect" "fff8f64b35adc5bad997ffb08047ee9380274136c21bde7ebc6d793c0f18ef47"`
Dec 19 20:08:02.987 INFO running `"docker" "rm" "-f" "fff8f64b35adc5bad997ffb08047ee9380274136c21bde7ebc6d793c0f18ef47"`
Dec 19 20:08:03.308 INFO [stdout] fff8f64b35adc5bad997ffb08047ee9380274136c21bde7ebc6d793c0f18ef47