Dec 05 03:08:56.928 INFO checking CarloMicieli/rust_tutorial against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 03:08:56.929 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 05 03:08:57.187 INFO [stdout] c67054e3d286004bf733f04f89fc6df8a262324eabd96ad5e79510963e0cd538
Dec 05 03:08:57.191 INFO running `"docker" "start" "-a" "c67054e3d286004bf733f04f89fc6df8a262324eabd96ad5e79510963e0cd538"`
Dec 05 03:08:58.095 INFO [stderr] usermod: no changes
Dec 05 03:08:58.139 INFO [stderr]     Checking rust_tutorial v0.1.0 (/source)
Dec 05 03:08:58.624 INFO [stderr] warning: unused import: `super::*`
Dec 05 03:08:58.624 INFO [stderr]  --> src/collections/arrays.rs:4:9
Dec 05 03:08:58.624 INFO [stderr]   |
Dec 05 03:08:58.624 INFO [stderr] 4 |     use super::*;
Dec 05 03:08:58.624 INFO [stderr]   |         ^^^^^^^^
Dec 05 03:08:58.624 INFO [stderr]   |
Dec 05 03:08:58.624 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 03:08:58.624 INFO [stderr] 
Dec 05 03:08:58.624 INFO [stderr] warning: unused import: `super::*`
Dec 05 03:08:58.624 INFO [stderr]  --> src/collections/vectors.rs:4:9
Dec 05 03:08:58.624 INFO [stderr]   |
Dec 05 03:08:58.624 INFO [stderr] 4 |     use super::*;
Dec 05 03:08:58.624 INFO [stderr]   |         ^^^^^^^^
Dec 05 03:08:58.624 INFO [stderr] 
Dec 05 03:08:58.633 INFO [stderr] warning: function is never used: `thruth`
Dec 05 03:08:58.633 INFO [stderr]  --> src/control_flow/ifs.rs:1:1
Dec 05 03:08:58.633 INFO [stderr]   |
Dec 05 03:08:58.633 INFO [stderr] 1 | pub fn thruth(x: i32) -> bool {
Dec 05 03:08:58.633 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:08:58.633 INFO [stderr]   |
Dec 05 03:08:58.633 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 03:08:58.633 INFO [stderr] 
Dec 05 03:08:58.633 INFO [stderr] warning: function is never used: `if_as_expression`
Dec 05 03:08:58.633 INFO [stderr]  --> src/control_flow/ifs.rs:9:1
Dec 05 03:08:58.633 INFO [stderr]   |
Dec 05 03:08:58.633 INFO [stderr] 9 | pub fn if_as_expression(x: i32) -> &'static str {
Dec 05 03:08:58.633 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:08:58.633 INFO [stderr] 
Dec 05 03:08:58.633 INFO [stderr] warning: function is never used: `sum`
Dec 05 03:08:58.633 INFO [stderr]  --> src/control_flow/loops.rs:2:1
Dec 05 03:08:58.633 INFO [stderr]   |
Dec 05 03:08:58.633 INFO [stderr] 2 | pub fn sum(from: i32, to: i32) -> i32 {
Dec 05 03:08:58.633 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:08:58.633 INFO [stderr] 
Dec 05 03:08:58.633 INFO [stderr] warning: function is never used: `sum2`
Dec 05 03:08:58.633 INFO [stderr]   --> src/control_flow/loops.rs:15:1
Dec 05 03:08:58.633 INFO [stderr]    |
Dec 05 03:08:58.633 INFO [stderr] 15 | pub fn sum2(from: i32, to: i32) -> i32 {
Dec 05 03:08:58.633 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:08:58.633 INFO [stderr] 
Dec 05 03:08:58.633 INFO [stderr] warning: function is never used: `sum3`
Dec 05 03:08:58.633 INFO [stderr]   --> src/control_flow/loops.rs:24:1
Dec 05 03:08:58.633 INFO [stderr]    |
Dec 05 03:08:58.634 INFO [stderr] 24 | pub fn sum3(from: i32, to: i32) -> i32 {
Dec 05 03:08:58.634 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:08:58.634 INFO [stderr] 
Dec 05 03:08:58.634 INFO [stderr] warning: variant is never constructed: `Val`
Dec 05 03:08:58.634 INFO [stderr]  --> src/custom_types/expressions.rs:5:5
Dec 05 03:08:58.634 INFO [stderr]   |
Dec 05 03:08:58.634 INFO [stderr] 5 |     Val { n: i32 },
Dec 05 03:08:58.634 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 05 03:08:58.634 INFO [stderr] 
Dec 05 03:08:58.634 INFO [stderr] warning: variant is never constructed: `Variable`
Dec 05 03:08:58.634 INFO [stderr]  --> src/custom_types/expressions.rs:6:5
Dec 05 03:08:58.634 INFO [stderr]   |
Dec 05 03:08:58.634 INFO [stderr] 6 |     Variable { name: String, exp: Box<Exp> },
Dec 05 03:08:58.634 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:08:58.634 INFO [stderr] 
Dec 05 03:08:58.634 INFO [stderr] warning: variant is never constructed: `Sum`
Dec 05 03:08:58.634 INFO [stderr]  --> src/custom_types/expressions.rs:7:5
Dec 05 03:08:58.634 INFO [stderr]   |
Dec 05 03:08:58.634 INFO [stderr] 7 |     Sum { lhs: Box<Exp>, rhs: Box<Exp> },
Dec 05 03:08:58.634 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:08:58.634 INFO [stderr] 
Dec 05 03:08:58.634 INFO [stderr] warning: method is never used: `constant`
Dec 05 03:08:58.634 INFO [stderr]   --> src/custom_types/expressions.rs:22:5
Dec 05 03:08:58.634 INFO [stderr]    |
Dec 05 03:08:58.634 INFO [stderr] 22 |     pub fn constant(val: i32) -> Exp {
Dec 05 03:08:58.634 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:08:58.634 INFO [stderr] 
Dec 05 03:08:58.634 INFO [stderr] warning: method is never used: `variable`
Dec 05 03:08:58.634 INFO [stderr]   --> src/custom_types/expressions.rs:29:5
Dec 05 03:08:58.634 INFO [stderr]    |
Dec 05 03:08:58.634 INFO [stderr] 29 |     pub fn variable(name: &str, exp: Exp) -> Exp {
Dec 05 03:08:58.634 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:08:58.634 INFO [stderr] 
Dec 05 03:08:58.634 INFO [stderr] warning: method is never used: `sum`
Dec 05 03:08:58.634 INFO [stderr]   --> src/custom_types/expressions.rs:36:5
Dec 05 03:08:58.634 INFO [stderr]    |
Dec 05 03:08:58.634 INFO [stderr] 36 |     pub fn sum(lhs: Exp, rhs: Exp) -> Exp {
Dec 05 03:08:58.634 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:08:58.634 INFO [stderr] 
Dec 05 03:08:58.634 INFO [stderr] warning: method is never used: `eval`
Dec 05 03:08:58.634 INFO [stderr]   --> src/custom_types/expressions.rs:43:5
Dec 05 03:08:58.634 INFO [stderr]    |
Dec 05 03:08:58.634 INFO [stderr] 43 |     pub fn eval(exp: &Exp) -> i32 {
Dec 05 03:08:58.634 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:08:58.634 INFO [stderr] 
Dec 05 03:08:58.634 INFO [stderr] warning: method is never used: `numerator`
Dec 05 03:08:58.634 INFO [stderr]   --> src/custom_types/rational.rs:26:5
Dec 05 03:08:58.634 INFO [stderr]    |
Dec 05 03:08:58.634 INFO [stderr] 26 |     pub fn numerator(&self) -> i32 {
Dec 05 03:08:58.634 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:08:58.634 INFO [stderr] 
Dec 05 03:08:58.634 INFO [stderr] warning: method is never used: `denominator`
Dec 05 03:08:58.634 INFO [stderr]   --> src/custom_types/rational.rs:30:5
Dec 05 03:08:58.634 INFO [stderr]    |
Dec 05 03:08:58.634 INFO [stderr] 30 |     pub fn denominator(&self) -> i32 {
Dec 05 03:08:58.634 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:08:58.634 INFO [stderr] 
Dec 05 03:08:58.634 INFO [stderr] warning: method is never used: `from`
Dec 05 03:08:58.634 INFO [stderr]   --> src/custom_types/rational.rs:35:5
Dec 05 03:08:58.634 INFO [stderr]    |
Dec 05 03:08:58.634 INFO [stderr] 35 |     pub fn from(num: i32) -> Rational {
Dec 05 03:08:58.634 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:08:58.634 INFO [stderr] 
Dec 05 03:08:58.634 INFO [stderr] warning: function is never used: `sum`
Dec 05 03:08:58.634 INFO [stderr]  --> src/functions/functions.rs:1:1
Dec 05 03:08:58.634 INFO [stderr]   |
Dec 05 03:08:58.634 INFO [stderr] 1 | fn sum(a: i32, b: i32) -> i32 {
Dec 05 03:08:58.634 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:08:58.634 INFO [stderr] 
Dec 05 03:08:58.634 INFO [stderr] warning: variant is never constructed: `DividedByZero`
Dec 05 03:08:58.634 INFO [stderr]  --> src/functions/functions.rs:7:5
Dec 05 03:08:58.634 INFO [stderr]   |
Dec 05 03:08:58.635 INFO [stderr] 7 |     DividedByZero,
Dec 05 03:08:58.635 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 05 03:08:58.635 INFO [stderr] 
Dec 05 03:08:58.635 INFO [stderr] warning: function is never used: `div`
Dec 05 03:08:58.635 INFO [stderr]   --> src/functions/functions.rs:10:1
Dec 05 03:08:58.635 INFO [stderr]    |
Dec 05 03:08:58.635 INFO [stderr] 10 | fn div(a: i32, b: i32) -> Result<i32, DivError> {
Dec 05 03:08:58.635 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:08:58.635 INFO [stderr] 
Dec 05 03:08:58.635 INFO [stderr] warning: function is never used: `fib`
Dec 05 03:08:58.635 INFO [stderr]   --> src/functions/functions.rs:18:1
Dec 05 03:08:58.635 INFO [stderr]    |
Dec 05 03:08:58.635 INFO [stderr] 18 | pub fn fib(n: i32) -> i32 {
Dec 05 03:08:58.635 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:08:58.635 INFO [stderr] 
Dec 05 03:08:58.635 INFO [stderr] warning: function is never used: `max`
Dec 05 03:08:58.635 INFO [stderr]   --> src/functions/functions.rs:28:1
Dec 05 03:08:58.635 INFO [stderr]    |
Dec 05 03:08:58.635 INFO [stderr] 28 | / fn max<T>(a: T, b: T) -> T
Dec 05 03:08:58.635 INFO [stderr] 29 | | where
Dec 05 03:08:58.635 INFO [stderr] 30 | |     T: PartialOrd,
Dec 05 03:08:58.635 INFO [stderr] 31 | | {
Dec 05 03:08:58.635 INFO [stderr] ...  |
Dec 05 03:08:58.635 INFO [stderr] 36 | |     }
Dec 05 03:08:58.635 INFO [stderr] 37 | | }
Dec 05 03:08:58.635 INFO [stderr]    | |_^
Dec 05 03:08:58.635 INFO [stderr] 
Dec 05 03:08:58.635 INFO [stderr] warning: function is never used: `hello`
Dec 05 03:08:58.635 INFO [stderr]  --> src/primitive_types/strings.rs:2:1
Dec 05 03:08:58.635 INFO [stderr]   |
Dec 05 03:08:58.635 INFO [stderr] 2 | fn hello(name: &str) -> String {
Dec 05 03:08:58.635 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:08:58.635 INFO [stderr] 
Dec 05 03:08:58.646 INFO [stderr] warning: the `d:` in this pattern is redundant
Dec 05 03:08:58.646 INFO [stderr]   --> src/custom_types/rational.rs:80:30
Dec 05 03:08:58.646 INFO [stderr]    |
Dec 05 03:08:58.646 INFO [stderr] 80 |         let Rational { n: c, d: d } = other;
Dec 05 03:08:58.646 INFO [stderr]    |                              --^^
Dec 05 03:08:58.646 INFO [stderr]    |                              |
Dec 05 03:08:58.646 INFO [stderr]    |                              help: remove this
Dec 05 03:08:58.646 INFO [stderr]    |
Dec 05 03:08:58.646 INFO [stderr]    = note: #[warn(non_shorthand_field_patterns)] on by default
Dec 05 03:08:58.646 INFO [stderr] 
Dec 05 03:08:58.998 INFO [stderr] warning: the `d:` in this pattern is redundant
Dec 05 03:08:58.998 INFO [stderr]   --> src/custom_types/rational.rs:80:30
Dec 05 03:08:58.998 INFO [stderr]    |
Dec 05 03:08:58.998 INFO [stderr] 80 |         let Rational { n: c, d: d } = other;
Dec 05 03:08:58.998 INFO [stderr]    |                              --^^
Dec 05 03:08:58.998 INFO [stderr]    |                              |
Dec 05 03:08:58.998 INFO [stderr]    |                              help: remove this
Dec 05 03:08:58.998 INFO [stderr]    |
Dec 05 03:08:58.998 INFO [stderr]    = note: #[warn(non_shorthand_field_patterns)] on by default
Dec 05 03:08:58.998 INFO [stderr] 
Dec 05 03:08:59.035 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
Dec 05 03:08:59.037 INFO [stderr] su: No module specific data is present
Dec 05 03:08:59.332 INFO running `"docker" "inspect" "c67054e3d286004bf733f04f89fc6df8a262324eabd96ad5e79510963e0cd538"`
Dec 05 03:08:59.440 INFO running `"docker" "rm" "-f" "c67054e3d286004bf733f04f89fc6df8a262324eabd96ad5e79510963e0cd538"`
Dec 05 03:08:59.535 INFO [stdout] c67054e3d286004bf733f04f89fc6df8a262324eabd96ad5e79510963e0cd538