Dec 19 07:37:16.320 INFO checking takayahilton/Validation against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 07:37:16.320 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/takayahilton/Validation:/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 07:37:16.772 INFO [stdout] 1c5862d51339198ead2cf1df5ae1d28390b93feb0b557164c8a57255574d7e6f
Dec 19 07:37:16.780 INFO running `"docker" "start" "-a" "1c5862d51339198ead2cf1df5ae1d28390b93feb0b557164c8a57255574d7e6f"`
Dec 19 07:37:18.335 INFO [stderr]     Checking validation v0.1.0 (/opt/crater/workdir)
Dec 19 07:37:18.652 INFO [stderr] warning: method is never used: `map`
Dec 19 07:37:18.652 INFO [stderr]  --> src/main.rs:9:5
Dec 19 07:37:18.652 INFO [stderr]   |
Dec 19 07:37:18.652 INFO [stderr] 9 |     fn map<B, F: FnOnce(A) -> B>(self, func: F) -> Validation<B, E> {
Dec 19 07:37:18.652 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:37:18.652 INFO [stderr]   |
Dec 19 07:37:18.652 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 07:37:18.653 INFO [stderr] 
Dec 19 07:37:18.653 INFO [stderr] warning: method is never used: `flat_map`
Dec 19 07:37:18.653 INFO [stderr]   --> src/main.rs:25:5
Dec 19 07:37:18.653 INFO [stderr]    |
Dec 19 07:37:18.653 INFO [stderr] 25 |     fn flat_map<B, F: FnOnce(A) -> Validation<B, E>>(self, func: F) -> Validation<B, E> {
Dec 19 07:37:18.653 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:37:18.653 INFO [stderr] 
Dec 19 07:37:18.694 INFO [stderr] warning: method is never used: `map`
Dec 19 07:37:18.694 INFO [stderr]  --> src/main.rs:9:5
Dec 19 07:37:18.694 INFO [stderr]   |
Dec 19 07:37:18.694 INFO [stderr] 9 |     fn map<B, F: FnOnce(A) -> B>(self, func: F) -> Validation<B, E> {
Dec 19 07:37:18.694 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:37:18.694 INFO [stderr]   |
Dec 19 07:37:18.694 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 07:37:18.694 INFO [stderr] 
Dec 19 07:37:18.694 INFO [stderr] warning: method is never used: `flat_map`
Dec 19 07:37:18.695 INFO [stderr]   --> src/main.rs:25:5
Dec 19 07:37:18.695 INFO [stderr]    |
Dec 19 07:37:18.695 INFO [stderr] 25 |     fn flat_map<B, F: FnOnce(A) -> Validation<B, E>>(self, func: F) -> Validation<B, E> {
Dec 19 07:37:18.695 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:37:18.695 INFO [stderr] 
Dec 19 07:37:18.731 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
Dec 19 07:37:19.738 INFO running `"docker" "inspect" "1c5862d51339198ead2cf1df5ae1d28390b93feb0b557164c8a57255574d7e6f"`
Dec 19 07:37:20.008 INFO running `"docker" "rm" "-f" "1c5862d51339198ead2cf1df5ae1d28390b93feb0b557164c8a57255574d7e6f"`
Dec 19 07:37:20.304 INFO [stdout] 1c5862d51339198ead2cf1df5ae1d28390b93feb0b557164c8a57255574d7e6f