Nov 01 03:44:37.750 INFO checking intrepion/example-x-rust-x-rustbyexample-com-x-std-result against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538
Nov 01 03:44:37.750 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-7/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +05812fa8c588473f03e3fa7cf59cd84f4f37c715-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 01 03:44:37.954 INFO blam! 76cf64a63817da15ff64fb2438a474e66885aa27552a9f9ccb0802092e30cbc1
Nov 01 03:44:37.955 INFO running `"docker" "start" "-a" "76cf64a63817da15ff64fb2438a474e66885aa27552a9f9ccb0802092e30cbc1"`
Nov 01 03:44:38.289 INFO kablam! usermod: no changes
Nov 01 03:44:38.323 INFO kablam!     Checking example-x-rust-x-rustbyexample-com-x-std-result v0.1.0 (/source)
Nov 01 03:44:38.636 INFO kablam! warning: enum is never used: `MathError`
Nov 01 03:44:38.636 INFO kablam!  --> src/main.rs:4:5
Nov 01 03:44:38.636 INFO kablam!   |
Nov 01 03:44:38.636 INFO kablam! 4 |     pub enum MathError {
Nov 01 03:44:38.636 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^
Nov 01 03:44:38.636 INFO kablam!   |
Nov 01 03:44:38.636 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 01 03:44:38.636 INFO kablam! 
Nov 01 03:44:38.636 INFO kablam! warning: type alias is never used: `MathResult`
Nov 01 03:44:38.636 INFO kablam!   --> src/main.rs:10:5
Nov 01 03:44:38.636 INFO kablam!    |
Nov 01 03:44:38.636 INFO kablam! 10 |     pub type MathResult = Result<f64, MathError>;
Nov 01 03:44:38.636 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 03:44:38.636 INFO kablam! 
Nov 01 03:44:38.636 INFO kablam! warning: function is never used: `div`
Nov 01 03:44:38.636 INFO kablam!   --> src/main.rs:12:5
Nov 01 03:44:38.636 INFO kablam!    |
Nov 01 03:44:38.636 INFO kablam! 12 |     pub fn div(x: f64, y: f64) -> MathResult {
Nov 01 03:44:38.636 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 03:44:38.636 INFO kablam! 
Nov 01 03:44:38.636 INFO kablam! warning: function is never used: `sqrt`
Nov 01 03:44:38.636 INFO kablam!   --> src/main.rs:23:5
Nov 01 03:44:38.636 INFO kablam!    |
Nov 01 03:44:38.636 INFO kablam! 23 |     pub fn sqrt(x: f64) -> MathResult {
Nov 01 03:44:38.636 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 03:44:38.636 INFO kablam! 
Nov 01 03:44:38.636 INFO kablam! warning: function is never used: `ln`
Nov 01 03:44:38.636 INFO kablam!   --> src/main.rs:31:5
Nov 01 03:44:38.636 INFO kablam!    |
Nov 01 03:44:38.636 INFO kablam! 31 |     pub fn ln(x: f64) -> MathResult {
Nov 01 03:44:38.636 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 03:44:38.636 INFO kablam! 
Nov 01 03:44:38.638 INFO kablam! warning: function is never used: `op`
Nov 01 03:44:38.638 INFO kablam!   --> src/main.rs:41:1
Nov 01 03:44:38.638 INFO kablam!    |
Nov 01 03:44:38.638 INFO kablam! 41 | fn op(x: f64, y: f64) -> f64 {
Nov 01 03:44:38.638 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 03:44:38.638 INFO kablam! 
Nov 01 03:44:38.714 INFO kablam! warning: enum is never used: `MathError`
Nov 01 03:44:38.714 INFO kablam!  --> src/main.rs:4:5
Nov 01 03:44:38.714 INFO kablam!   |
Nov 01 03:44:38.714 INFO kablam! 4 |     pub enum MathError {
Nov 01 03:44:38.714 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^
Nov 01 03:44:38.714 INFO kablam!   |
Nov 01 03:44:38.714 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 01 03:44:38.714 INFO kablam! 
Nov 01 03:44:38.714 INFO kablam! warning: type alias is never used: `MathResult`
Nov 01 03:44:38.715 INFO kablam!   --> src/main.rs:10:5
Nov 01 03:44:38.715 INFO kablam!    |
Nov 01 03:44:38.715 INFO kablam! 10 |     pub type MathResult = Result<f64, MathError>;
Nov 01 03:44:38.715 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 03:44:38.715 INFO kablam! 
Nov 01 03:44:38.715 INFO kablam! warning: function is never used: `div`
Nov 01 03:44:38.715 INFO kablam!   --> src/main.rs:12:5
Nov 01 03:44:38.715 INFO kablam!    |
Nov 01 03:44:38.715 INFO kablam! 12 |     pub fn div(x: f64, y: f64) -> MathResult {
Nov 01 03:44:38.715 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 03:44:38.715 INFO kablam! 
Nov 01 03:44:38.715 INFO kablam! warning: function is never used: `sqrt`
Nov 01 03:44:38.715 INFO kablam!   --> src/main.rs:23:5
Nov 01 03:44:38.715 INFO kablam!    |
Nov 01 03:44:38.715 INFO kablam! 23 |     pub fn sqrt(x: f64) -> MathResult {
Nov 01 03:44:38.715 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 03:44:38.715 INFO kablam! 
Nov 01 03:44:38.715 INFO kablam! warning: function is never used: `ln`
Nov 01 03:44:38.715 INFO kablam!   --> src/main.rs:31:5
Nov 01 03:44:38.715 INFO kablam!    |
Nov 01 03:44:38.715 INFO kablam! 31 |     pub fn ln(x: f64) -> MathResult {
Nov 01 03:44:38.715 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 03:44:38.715 INFO kablam! 
Nov 01 03:44:38.715 INFO kablam! warning: function is never used: `op`
Nov 01 03:44:38.715 INFO kablam!   --> src/main.rs:41:1
Nov 01 03:44:38.715 INFO kablam!    |
Nov 01 03:44:38.715 INFO kablam! 41 | fn op(x: f64, y: f64) -> f64 {
Nov 01 03:44:38.715 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 03:44:38.715 INFO kablam! 
Nov 01 03:44:38.727 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
Nov 01 03:44:38.732 INFO kablam! su: No module specific data is present
Nov 01 03:44:39.134 INFO running `"docker" "rm" "-f" "76cf64a63817da15ff64fb2438a474e66885aa27552a9f9ccb0802092e30cbc1"`
Nov 01 03:44:39.215 INFO blam! 76cf64a63817da15ff64fb2438a474e66885aa27552a9f9ccb0802092e30cbc1