Dec 19 15:41:16.765 INFO checking intrepion/example-x-rust-x-rustbyexample-com-x-std-result against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 15:41:16.765 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/intrepion/example-x-rust-x-rustbyexample-com-x-std-result:/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 15:41:16.916 INFO [stdout] 42fc59b952f101b04dc247ba6b4b943fecd14ff10d541336ff8b6661fc348822
Dec 19 15:41:16.940 INFO running `"docker" "start" "-a" "42fc59b952f101b04dc247ba6b4b943fecd14ff10d541336ff8b6661fc348822"`
Dec 19 15:41:17.536 INFO [stderr]     Checking example-x-rust-x-rustbyexample-com-x-std-result v0.1.0 (/opt/crater/workdir)
Dec 19 15:41:17.692 INFO [stderr] warning: enum is never used: `MathError`
Dec 19 15:41:17.692 INFO [stderr]  --> src/main.rs:4:5
Dec 19 15:41:17.692 INFO [stderr]   |
Dec 19 15:41:17.692 INFO [stderr] 4 |     pub enum MathError {
Dec 19 15:41:17.692 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 19 15:41:17.692 INFO [stderr]   |
Dec 19 15:41:17.692 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 15:41:17.692 INFO [stderr] 
Dec 19 15:41:17.692 INFO [stderr] warning: type alias is never used: `MathResult`
Dec 19 15:41:17.692 INFO [stderr]   --> src/main.rs:10:5
Dec 19 15:41:17.692 INFO [stderr]    |
Dec 19 15:41:17.692 INFO [stderr] 10 |     pub type MathResult = Result<f64, MathError>;
Dec 19 15:41:17.692 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:41:17.692 INFO [stderr] 
Dec 19 15:41:17.693 INFO [stderr] warning: function is never used: `div`
Dec 19 15:41:17.693 INFO [stderr]   --> src/main.rs:12:5
Dec 19 15:41:17.693 INFO [stderr]    |
Dec 19 15:41:17.693 INFO [stderr] 12 |     pub fn div(x: f64, y: f64) -> MathResult {
Dec 19 15:41:17.693 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:41:17.693 INFO [stderr] 
Dec 19 15:41:17.693 INFO [stderr] warning: function is never used: `sqrt`
Dec 19 15:41:17.693 INFO [stderr]   --> src/main.rs:23:5
Dec 19 15:41:17.693 INFO [stderr]    |
Dec 19 15:41:17.693 INFO [stderr] 23 |     pub fn sqrt(x: f64) -> MathResult {
Dec 19 15:41:17.693 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:41:17.693 INFO [stderr] 
Dec 19 15:41:17.693 INFO [stderr] warning: function is never used: `ln`
Dec 19 15:41:17.693 INFO [stderr]   --> src/main.rs:31:5
Dec 19 15:41:17.693 INFO [stderr]    |
Dec 19 15:41:17.693 INFO [stderr] 31 |     pub fn ln(x: f64) -> MathResult {
Dec 19 15:41:17.693 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:41:17.693 INFO [stderr] 
Dec 19 15:41:17.693 INFO [stderr] warning: function is never used: `op`
Dec 19 15:41:17.693 INFO [stderr]   --> src/main.rs:41:1
Dec 19 15:41:17.693 INFO [stderr]    |
Dec 19 15:41:17.693 INFO [stderr] 41 | fn op(x: f64, y: f64) -> f64 {
Dec 19 15:41:17.693 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:41:17.693 INFO [stderr] 
Dec 19 15:41:17.701 INFO [stderr] warning: enum is never used: `MathError`
Dec 19 15:41:17.701 INFO [stderr]  --> src/main.rs:4:5
Dec 19 15:41:17.701 INFO [stderr]   |
Dec 19 15:41:17.701 INFO [stderr] 4 |     pub enum MathError {
Dec 19 15:41:17.701 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 19 15:41:17.701 INFO [stderr]   |
Dec 19 15:41:17.701 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 15:41:17.701 INFO [stderr] 
Dec 19 15:41:17.701 INFO [stderr] warning: type alias is never used: `MathResult`
Dec 19 15:41:17.701 INFO [stderr]   --> src/main.rs:10:5
Dec 19 15:41:17.701 INFO [stderr]    |
Dec 19 15:41:17.701 INFO [stderr] 10 |     pub type MathResult = Result<f64, MathError>;
Dec 19 15:41:17.701 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:41:17.701 INFO [stderr] 
Dec 19 15:41:17.701 INFO [stderr] warning: function is never used: `div`
Dec 19 15:41:17.701 INFO [stderr]   --> src/main.rs:12:5
Dec 19 15:41:17.701 INFO [stderr]    |
Dec 19 15:41:17.701 INFO [stderr] 12 |     pub fn div(x: f64, y: f64) -> MathResult {
Dec 19 15:41:17.701 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:41:17.701 INFO [stderr] 
Dec 19 15:41:17.701 INFO [stderr] warning: function is never used: `sqrt`
Dec 19 15:41:17.701 INFO [stderr]   --> src/main.rs:23:5
Dec 19 15:41:17.701 INFO [stderr]    |
Dec 19 15:41:17.701 INFO [stderr] 23 |     pub fn sqrt(x: f64) -> MathResult {
Dec 19 15:41:17.701 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:41:17.701 INFO [stderr] 
Dec 19 15:41:17.701 INFO [stderr] warning: function is never used: `ln`
Dec 19 15:41:17.701 INFO [stderr]   --> src/main.rs:31:5
Dec 19 15:41:17.701 INFO [stderr]    |
Dec 19 15:41:17.701 INFO [stderr] 31 |     pub fn ln(x: f64) -> MathResult {
Dec 19 15:41:17.701 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:41:17.701 INFO [stderr] 
Dec 19 15:41:17.701 INFO [stderr] warning: function is never used: `op`
Dec 19 15:41:17.701 INFO [stderr]   --> src/main.rs:41:1
Dec 19 15:41:17.701 INFO [stderr]    |
Dec 19 15:41:17.701 INFO [stderr] 41 | fn op(x: f64, y: f64) -> f64 {
Dec 19 15:41:17.701 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:41:17.701 INFO [stderr] 
Dec 19 15:41:17.721 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.19s
Dec 19 15:41:17.948 INFO running `"docker" "inspect" "42fc59b952f101b04dc247ba6b4b943fecd14ff10d541336ff8b6661fc348822"`
Dec 19 15:41:18.014 INFO running `"docker" "rm" "-f" "42fc59b952f101b04dc247ba6b4b943fecd14ff10d541336ff8b6661fc348822"`
Dec 19 15:41:18.072 INFO [stdout] 42fc59b952f101b04dc247ba6b4b943fecd14ff10d541336ff8b6661fc348822