Nov 30 11:44:51.266 INFO checking CarloMicieli/rust_tutorial against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 11:44:51.266 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-1/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 30 11:44:51.496 INFO [stdout] 5e88841c6b90c093d3449cee43b5b32b56241f3bf29f987304fe696149969d13
Nov 30 11:44:51.498 INFO running `"docker" "start" "-a" "5e88841c6b90c093d3449cee43b5b32b56241f3bf29f987304fe696149969d13"`
Nov 30 11:44:52.355 INFO [stderr] usermod: no changes
Nov 30 11:44:52.404 INFO [stderr]     Checking rust_tutorial v0.1.0 (/source)
Nov 30 11:44:53.240 INFO [stderr] warning: unused import: `super::*`
Nov 30 11:44:53.240 INFO [stderr]  --> src/collections/arrays.rs:4:9
Nov 30 11:44:53.240 INFO [stderr]   |
Nov 30 11:44:53.240 INFO [stderr] 4 |     use super::*;
Nov 30 11:44:53.240 INFO [stderr]   |         ^^^^^^^^
Nov 30 11:44:53.240 INFO [stderr]   |
Nov 30 11:44:53.240 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 11:44:53.241 INFO [stderr] 
Nov 30 11:44:53.241 INFO [stderr] warning: unused import: `super::*`
Nov 30 11:44:53.241 INFO [stderr]  --> src/collections/vectors.rs:4:9
Nov 30 11:44:53.241 INFO [stderr]   |
Nov 30 11:44:53.241 INFO [stderr] 4 |     use super::*;
Nov 30 11:44:53.241 INFO [stderr]   |         ^^^^^^^^
Nov 30 11:44:53.241 INFO [stderr] 
Nov 30 11:44:53.546 INFO [stderr] warning: function is never used: `thruth`
Nov 30 11:44:53.546 INFO [stderr]  --> src/control_flow/ifs.rs:1:1
Nov 30 11:44:53.546 INFO [stderr]   |
Nov 30 11:44:53.546 INFO [stderr] 1 | pub fn thruth(x: i32) -> bool {
Nov 30 11:44:53.546 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:44:53.546 INFO [stderr]   |
Nov 30 11:44:53.546 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 11:44:53.546 INFO [stderr] 
Nov 30 11:44:53.546 INFO [stderr] warning: function is never used: `if_as_expression`
Nov 30 11:44:53.546 INFO [stderr]  --> src/control_flow/ifs.rs:9:1
Nov 30 11:44:53.546 INFO [stderr]   |
Nov 30 11:44:53.546 INFO [stderr] 9 | pub fn if_as_expression(x: i32) -> &'static str {
Nov 30 11:44:53.546 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:44:53.546 INFO [stderr] 
Nov 30 11:44:53.546 INFO [stderr] warning: function is never used: `sum`
Nov 30 11:44:53.546 INFO [stderr]  --> src/control_flow/loops.rs:2:1
Nov 30 11:44:53.546 INFO [stderr]   |
Nov 30 11:44:53.546 INFO [stderr] 2 | pub fn sum(from: i32, to: i32) -> i32 {
Nov 30 11:44:53.546 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:44:53.546 INFO [stderr] 
Nov 30 11:44:53.546 INFO [stderr] warning: function is never used: `sum2`
Nov 30 11:44:53.546 INFO [stderr]   --> src/control_flow/loops.rs:15:1
Nov 30 11:44:53.546 INFO [stderr]    |
Nov 30 11:44:53.546 INFO [stderr] 15 | pub fn sum2(from: i32, to: i32) -> i32 {
Nov 30 11:44:53.546 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:44:53.546 INFO [stderr] 
Nov 30 11:44:53.546 INFO [stderr] warning: function is never used: `sum3`
Nov 30 11:44:53.546 INFO [stderr]   --> src/control_flow/loops.rs:24:1
Nov 30 11:44:53.546 INFO [stderr]    |
Nov 30 11:44:53.546 INFO [stderr] 24 | pub fn sum3(from: i32, to: i32) -> i32 {
Nov 30 11:44:53.546 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:44:53.547 INFO [stderr] 
Nov 30 11:44:53.547 INFO [stderr] warning: variant is never constructed: `Val`
Nov 30 11:44:53.547 INFO [stderr]  --> src/custom_types/expressions.rs:5:5
Nov 30 11:44:53.547 INFO [stderr]   |
Nov 30 11:44:53.547 INFO [stderr] 5 |     Val { n: i32 },
Nov 30 11:44:53.547 INFO [stderr]   |     ^^^^^^^^^^^^^^
Nov 30 11:44:53.547 INFO [stderr] 
Nov 30 11:44:53.547 INFO [stderr] warning: variant is never constructed: `Variable`
Nov 30 11:44:53.547 INFO [stderr]  --> src/custom_types/expressions.rs:6:5
Nov 30 11:44:53.547 INFO [stderr]   |
Nov 30 11:44:53.547 INFO [stderr] 6 |     Variable { name: String, exp: Box<Exp> },
Nov 30 11:44:53.547 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:44:53.547 INFO [stderr] 
Nov 30 11:44:53.547 INFO [stderr] warning: variant is never constructed: `Sum`
Nov 30 11:44:53.547 INFO [stderr]  --> src/custom_types/expressions.rs:7:5
Nov 30 11:44:53.547 INFO [stderr]   |
Nov 30 11:44:53.547 INFO [stderr] 7 |     Sum { lhs: Box<Exp>, rhs: Box<Exp> },
Nov 30 11:44:53.547 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:44:53.547 INFO [stderr] 
Nov 30 11:44:53.547 INFO [stderr] warning: method is never used: `constant`
Nov 30 11:44:53.547 INFO [stderr]   --> src/custom_types/expressions.rs:22:5
Nov 30 11:44:53.547 INFO [stderr]    |
Nov 30 11:44:53.547 INFO [stderr] 22 |     pub fn constant(val: i32) -> Exp {
Nov 30 11:44:53.547 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:44:53.547 INFO [stderr] 
Nov 30 11:44:53.547 INFO [stderr] warning: method is never used: `variable`
Nov 30 11:44:53.547 INFO [stderr]   --> src/custom_types/expressions.rs:29:5
Nov 30 11:44:53.547 INFO [stderr]    |
Nov 30 11:44:53.547 INFO [stderr] 29 |     pub fn variable(name: &str, exp: Exp) -> Exp {
Nov 30 11:44:53.547 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:44:53.547 INFO [stderr] 
Nov 30 11:44:53.547 INFO [stderr] warning: method is never used: `sum`
Nov 30 11:44:53.547 INFO [stderr]   --> src/custom_types/expressions.rs:36:5
Nov 30 11:44:53.547 INFO [stderr]    |
Nov 30 11:44:53.547 INFO [stderr] 36 |     pub fn sum(lhs: Exp, rhs: Exp) -> Exp {
Nov 30 11:44:53.547 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:44:53.547 INFO [stderr] 
Nov 30 11:44:53.547 INFO [stderr] warning: method is never used: `eval`
Nov 30 11:44:53.547 INFO [stderr]   --> src/custom_types/expressions.rs:43:5
Nov 30 11:44:53.547 INFO [stderr]    |
Nov 30 11:44:53.547 INFO [stderr] 43 |     pub fn eval(exp: &Exp) -> i32 {
Nov 30 11:44:53.547 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:44:53.547 INFO [stderr] 
Nov 30 11:44:53.547 INFO [stderr] warning: method is never used: `numerator`
Nov 30 11:44:53.547 INFO [stderr]   --> src/custom_types/rational.rs:26:5
Nov 30 11:44:53.547 INFO [stderr]    |
Nov 30 11:44:53.547 INFO [stderr] 26 |     pub fn numerator(&self) -> i32 {
Nov 30 11:44:53.547 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:44:53.547 INFO [stderr] 
Nov 30 11:44:53.547 INFO [stderr] warning: method is never used: `denominator`
Nov 30 11:44:53.547 INFO [stderr]   --> src/custom_types/rational.rs:30:5
Nov 30 11:44:53.547 INFO [stderr]    |
Nov 30 11:44:53.547 INFO [stderr] 30 |     pub fn denominator(&self) -> i32 {
Nov 30 11:44:53.547 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:44:53.548 INFO [stderr] 
Nov 30 11:44:53.548 INFO [stderr] warning: method is never used: `from`
Nov 30 11:44:53.548 INFO [stderr]   --> src/custom_types/rational.rs:35:5
Nov 30 11:44:53.548 INFO [stderr]    |
Nov 30 11:44:53.548 INFO [stderr] 35 |     pub fn from(num: i32) -> Rational {
Nov 30 11:44:53.548 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:44:53.548 INFO [stderr] 
Nov 30 11:44:53.548 INFO [stderr] warning: function is never used: `sum`
Nov 30 11:44:53.548 INFO [stderr]  --> src/functions/functions.rs:1:1
Nov 30 11:44:53.548 INFO [stderr]   |
Nov 30 11:44:53.548 INFO [stderr] 1 | fn sum(a: i32, b: i32) -> i32 {
Nov 30 11:44:53.548 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:44:53.548 INFO [stderr] 
Nov 30 11:44:53.548 INFO [stderr] warning: variant is never constructed: `DividedByZero`
Nov 30 11:44:53.548 INFO [stderr]  --> src/functions/functions.rs:7:5
Nov 30 11:44:53.548 INFO [stderr]   |
Nov 30 11:44:53.548 INFO [stderr] 7 |     DividedByZero,
Nov 30 11:44:53.548 INFO [stderr]   |     ^^^^^^^^^^^^^
Nov 30 11:44:53.548 INFO [stderr] 
Nov 30 11:44:53.548 INFO [stderr] warning: function is never used: `div`
Nov 30 11:44:53.548 INFO [stderr]   --> src/functions/functions.rs:10:1
Nov 30 11:44:53.548 INFO [stderr]    |
Nov 30 11:44:53.548 INFO [stderr] 10 | fn div(a: i32, b: i32) -> Result<i32, DivError> {
Nov 30 11:44:53.548 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:44:53.548 INFO [stderr] 
Nov 30 11:44:53.548 INFO [stderr] warning: function is never used: `fib`
Nov 30 11:44:53.548 INFO [stderr]   --> src/functions/functions.rs:18:1
Nov 30 11:44:53.548 INFO [stderr]    |
Nov 30 11:44:53.548 INFO [stderr] 18 | pub fn fib(n: i32) -> i32 {
Nov 30 11:44:53.548 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:44:53.548 INFO [stderr] 
Nov 30 11:44:53.548 INFO [stderr] warning: function is never used: `max`
Nov 30 11:44:53.548 INFO [stderr]   --> src/functions/functions.rs:28:1
Nov 30 11:44:53.548 INFO [stderr]    |
Nov 30 11:44:53.548 INFO [stderr] 28 | / fn max<T>(a: T, b: T) -> T
Nov 30 11:44:53.548 INFO [stderr] 29 | | where
Nov 30 11:44:53.548 INFO [stderr] 30 | |     T: PartialOrd,
Nov 30 11:44:53.548 INFO [stderr] 31 | | {
Nov 30 11:44:53.548 INFO [stderr] ...  |
Nov 30 11:44:53.548 INFO [stderr] 36 | |     }
Nov 30 11:44:53.548 INFO [stderr] 37 | | }
Nov 30 11:44:53.548 INFO [stderr]    | |_^
Nov 30 11:44:53.548 INFO [stderr] 
Nov 30 11:44:53.548 INFO [stderr] warning: function is never used: `hello`
Nov 30 11:44:53.548 INFO [stderr]  --> src/primitive_types/strings.rs:2:1
Nov 30 11:44:53.548 INFO [stderr]   |
Nov 30 11:44:53.548 INFO [stderr] 2 | fn hello(name: &str) -> String {
Nov 30 11:44:53.548 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:44:53.548 INFO [stderr] 
Nov 30 11:44:53.558 INFO [stderr] warning: the `d:` in this pattern is redundant
Nov 30 11:44:53.558 INFO [stderr]   --> src/custom_types/rational.rs:80:30
Nov 30 11:44:53.558 INFO [stderr]    |
Nov 30 11:44:53.558 INFO [stderr] 80 |         let Rational { n: c, d: d } = other;
Nov 30 11:44:53.558 INFO [stderr]    |                              --^^
Nov 30 11:44:53.558 INFO [stderr]    |                              |
Nov 30 11:44:53.558 INFO [stderr]    |                              help: remove this
Nov 30 11:44:53.558 INFO [stderr]    |
Nov 30 11:44:53.558 INFO [stderr]    = note: #[warn(non_shorthand_field_patterns)] on by default
Nov 30 11:44:53.558 INFO [stderr] 
Nov 30 11:44:53.912 INFO [stderr] warning: the `d:` in this pattern is redundant
Nov 30 11:44:53.912 INFO [stderr]   --> src/custom_types/rational.rs:80:30
Nov 30 11:44:53.912 INFO [stderr]    |
Nov 30 11:44:53.912 INFO [stderr] 80 |         let Rational { n: c, d: d } = other;
Nov 30 11:44:53.912 INFO [stderr]    |                              --^^
Nov 30 11:44:53.912 INFO [stderr]    |                              |
Nov 30 11:44:53.912 INFO [stderr]    |                              help: remove this
Nov 30 11:44:53.912 INFO [stderr]    |
Nov 30 11:44:53.912 INFO [stderr]    = note: #[warn(non_shorthand_field_patterns)] on by default
Nov 30 11:44:53.912 INFO [stderr] 
Nov 30 11:44:53.934 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
Nov 30 11:44:53.935 INFO [stderr] su: No module specific data is present
Nov 30 11:44:54.606 INFO running `"docker" "inspect" "5e88841c6b90c093d3449cee43b5b32b56241f3bf29f987304fe696149969d13"`
Nov 30 11:44:54.876 INFO running `"docker" "rm" "-f" "5e88841c6b90c093d3449cee43b5b32b56241f3bf29f987304fe696149969d13"`
Nov 30 11:44:55.084 INFO [stdout] 5e88841c6b90c093d3449cee43b5b32b56241f3bf29f987304fe696149969d13