Dec 11 16:57:25.840 INFO checking intrepion/example-x-rust-x-rustbyexample-com-x-std-result-try against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 16:57:25.841 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 11 16:57:26.135 INFO [stdout] db6204f7ededd24149beea459fdffb89d2136e9509ad2ea4125503674e7536de
Dec 11 16:57:26.138 INFO running `"docker" "start" "-a" "db6204f7ededd24149beea459fdffb89d2136e9509ad2ea4125503674e7536de"`
Dec 11 16:57:26.650 INFO [stderr] usermod: no changes
Dec 11 16:57:26.671 INFO [stderr]     Checking example-x-rust-x-rustbyexample-com-x-std-result-try v0.1.0 (/source)
Dec 11 16:57:26.958 INFO [stderr] warning: enum is never used: `MathError`
Dec 11 16:57:26.958 INFO [stderr]  --> src/main.rs:3:5
Dec 11 16:57:26.958 INFO [stderr]   |
Dec 11 16:57:26.958 INFO [stderr] 3 |     enum MathError {
Dec 11 16:57:26.958 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 11 16:57:26.958 INFO [stderr]   |
Dec 11 16:57:26.959 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 16:57:26.959 INFO [stderr] 
Dec 11 16:57:26.959 INFO [stderr] warning: type alias is never used: `MathResult`
Dec 11 16:57:26.959 INFO [stderr]  --> src/main.rs:9:5
Dec 11 16:57:26.959 INFO [stderr]   |
Dec 11 16:57:26.959 INFO [stderr] 9 |     type MathResult = Result<f64, MathError>;
Dec 11 16:57:26.959 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:57:26.959 INFO [stderr] 
Dec 11 16:57:26.959 INFO [stderr] warning: function is never used: `div`
Dec 11 16:57:26.959 INFO [stderr]   --> src/main.rs:11:5
Dec 11 16:57:26.959 INFO [stderr]    |
Dec 11 16:57:26.959 INFO [stderr] 11 |     fn div(x: f64, y: f64) -> MathResult {
Dec 11 16:57:26.959 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:57:26.959 INFO [stderr] 
Dec 11 16:57:26.959 INFO [stderr] warning: function is never used: `sqrt`
Dec 11 16:57:26.959 INFO [stderr]   --> src/main.rs:19:5
Dec 11 16:57:26.959 INFO [stderr]    |
Dec 11 16:57:26.959 INFO [stderr] 19 |     fn sqrt(x: f64) -> MathResult {
Dec 11 16:57:26.959 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:57:26.959 INFO [stderr] 
Dec 11 16:57:26.959 INFO [stderr] warning: function is never used: `ln`
Dec 11 16:57:26.959 INFO [stderr]   --> src/main.rs:27:5
Dec 11 16:57:26.959 INFO [stderr]    |
Dec 11 16:57:26.959 INFO [stderr] 27 |     fn ln(x: f64) -> MathResult {
Dec 11 16:57:26.959 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:57:26.959 INFO [stderr] 
Dec 11 16:57:26.961 INFO [stderr] warning: function is never used: `op_`
Dec 11 16:57:26.961 INFO [stderr]   --> src/main.rs:36:5
Dec 11 16:57:26.961 INFO [stderr]    |
Dec 11 16:57:26.961 INFO [stderr] 36 |     fn op_(x: f64, y: f64) -> MathResult {
Dec 11 16:57:26.961 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:57:26.961 INFO [stderr] 
Dec 11 16:57:26.961 INFO [stderr] warning: function is never used: `op`
Dec 11 16:57:26.961 INFO [stderr]   --> src/main.rs:46:5
Dec 11 16:57:26.961 INFO [stderr]    |
Dec 11 16:57:26.961 INFO [stderr] 46 |     pub fn op(x: f64, y: f64) {
Dec 11 16:57:26.961 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:57:26.961 INFO [stderr] 
Dec 11 16:57:26.990 INFO [stderr] warning: enum is never used: `MathError`
Dec 11 16:57:26.990 INFO [stderr]  --> src/main.rs:3:5
Dec 11 16:57:26.990 INFO [stderr]   |
Dec 11 16:57:26.990 INFO [stderr] 3 |     enum MathError {
Dec 11 16:57:26.990 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 11 16:57:26.990 INFO [stderr]   |
Dec 11 16:57:26.990 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 16:57:26.990 INFO [stderr] 
Dec 11 16:57:26.990 INFO [stderr] warning: type alias is never used: `MathResult`
Dec 11 16:57:26.990 INFO [stderr]  --> src/main.rs:9:5
Dec 11 16:57:26.990 INFO [stderr]   |
Dec 11 16:57:26.990 INFO [stderr] 9 |     type MathResult = Result<f64, MathError>;
Dec 11 16:57:26.990 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:57:26.990 INFO [stderr] 
Dec 11 16:57:26.990 INFO [stderr] warning: function is never used: `div`
Dec 11 16:57:26.990 INFO [stderr]   --> src/main.rs:11:5
Dec 11 16:57:26.990 INFO [stderr]    |
Dec 11 16:57:26.990 INFO [stderr] 11 |     fn div(x: f64, y: f64) -> MathResult {
Dec 11 16:57:26.990 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:57:26.990 INFO [stderr] 
Dec 11 16:57:26.990 INFO [stderr] warning: function is never used: `sqrt`
Dec 11 16:57:26.990 INFO [stderr]   --> src/main.rs:19:5
Dec 11 16:57:26.990 INFO [stderr]    |
Dec 11 16:57:26.990 INFO [stderr] 19 |     fn sqrt(x: f64) -> MathResult {
Dec 11 16:57:26.990 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:57:26.990 INFO [stderr] 
Dec 11 16:57:26.990 INFO [stderr] warning: function is never used: `ln`
Dec 11 16:57:26.990 INFO [stderr]   --> src/main.rs:27:5
Dec 11 16:57:26.990 INFO [stderr]    |
Dec 11 16:57:26.990 INFO [stderr] 27 |     fn ln(x: f64) -> MathResult {
Dec 11 16:57:26.990 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:57:26.990 INFO [stderr] 
Dec 11 16:57:26.990 INFO [stderr] warning: function is never used: `op_`
Dec 11 16:57:26.990 INFO [stderr]   --> src/main.rs:36:5
Dec 11 16:57:26.991 INFO [stderr]    |
Dec 11 16:57:26.991 INFO [stderr] 36 |     fn op_(x: f64, y: f64) -> MathResult {
Dec 11 16:57:26.991 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:57:26.991 INFO [stderr] 
Dec 11 16:57:26.991 INFO [stderr] warning: function is never used: `op`
Dec 11 16:57:26.991 INFO [stderr]   --> src/main.rs:46:5
Dec 11 16:57:26.991 INFO [stderr]    |
Dec 11 16:57:26.991 INFO [stderr] 46 |     pub fn op(x: f64, y: f64) {
Dec 11 16:57:26.991 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:57:26.991 INFO [stderr] 
Dec 11 16:57:27.004 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
Dec 11 16:57:27.006 INFO [stderr] su: No module specific data is present
Dec 11 16:57:27.251 INFO running `"docker" "inspect" "db6204f7ededd24149beea459fdffb89d2136e9509ad2ea4125503674e7536de"`
Dec 11 16:57:27.389 INFO running `"docker" "rm" "-f" "db6204f7ededd24149beea459fdffb89d2136e9509ad2ea4125503674e7536de"`
Dec 11 16:57:27.524 INFO [stdout] db6204f7ededd24149beea459fdffb89d2136e9509ad2ea4125503674e7536de