Oct 10 22:42:11.198 INFO testing gdemarcsek/learn-rust against master#0e07c4281c343e9e15a0a8fca79538ad1a8eb513 for rustdoc-test-static-cling
Oct 10 22:42:11.198 INFO running: cargo +0e07c4281c343e9e15a0a8fca79538ad1a8eb513-alt build --frozen
Oct 10 22:42:11.200 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/test-source/worker-0/rustdoc-test-static-cling/master#0e07c4281c343e9e15a0a8fca79538ad1a8eb513:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/target-dirs/rustdoc-test-static-cling/worker-0/master#0e07c4281c343e9e15a0a8fca79538ad1a8eb513:/target:rw,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" "CMD=cargo +0e07c4281c343e9e15a0a8fca79538ad1a8eb513-alt build --frozen" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "--network" "none" "crater"`
Oct 10 22:42:11.445 INFO blam! 23045b50fea73d499b3bdadb34e5bd6bbcc40c9c3ce74783e16628f7c04d88ce
Oct 10 22:42:11.448 INFO running `"docker" "start" "-a" "23045b50fea73d499b3bdadb34e5bd6bbcc40c9c3ce74783e16628f7c04d88ce"`
Oct 10 22:42:12.547 INFO kablam! usermod: no changes
Oct 10 22:42:12.614 INFO kablam!    Compiling learn-rust v0.1.0 (/source)
Oct 10 22:42:12.832 INFO kablam! warning: unused import: `std::*`
Oct 10 22:42:12.832 INFO kablam!    --> src/main.rs:297:9
Oct 10 22:42:12.832 INFO kablam!     |
Oct 10 22:42:12.832 INFO kablam! 297 |     use std::*;         // glob import from Rust's standard library
Oct 10 22:42:12.832 INFO kablam!     |         ^^^^^^
Oct 10 22:42:12.832 INFO kablam!     |
Oct 10 22:42:12.832 INFO kablam!     = note: #[warn(unused_imports)] on by default
Oct 10 22:42:12.832 INFO kablam! 
Oct 10 22:42:12.948 INFO kablam! warning: unreachable pattern
Oct 10 22:42:12.948 INFO kablam!    --> src/main.rs:269:9
Oct 10 22:42:12.949 INFO kablam!     |
Oct 10 22:42:12.949 INFO kablam! 269 |         _ => -1,    // _ is a placeholder that matches any value - if we put it as last, this will mean what the "default" label menas for "switch" in C++
Oct 10 22:42:12.949 INFO kablam!     |         ^
Oct 10 22:42:12.949 INFO kablam!     |
Oct 10 22:42:12.949 INFO kablam!     = note: #[warn(unreachable_patterns)] on by default
Oct 10 22:42:12.949 INFO kablam! 
Oct 10 22:42:12.949 INFO kablam! warning: unused variable: `x`
Oct 10 22:42:12.949 INFO kablam!   --> src/main.rs:17:9
Oct 10 22:42:12.949 INFO kablam!    |
Oct 10 22:42:12.949 INFO kablam! 17 |     let x = 42;             // (type is inferred by the compiler whenever possible)
Oct 10 22:42:12.949 INFO kablam!    |         ^ help: consider using `_x` instead
Oct 10 22:42:12.949 INFO kablam!    |
Oct 10 22:42:12.949 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 10 22:42:12.949 INFO kablam! 
Oct 10 22:42:12.949 INFO kablam! warning: variable `x` is assigned to, but never used
Oct 10 22:42:12.949 INFO kablam!   --> src/main.rs:19:13
Oct 10 22:42:12.949 INFO kablam!    |
Oct 10 22:42:12.949 INFO kablam! 19 |     let mut x = 42;         // Now 'x' is declared to be mutable, thus...
Oct 10 22:42:12.949 INFO kablam!    |             ^
Oct 10 22:42:12.949 INFO kablam!    |
Oct 10 22:42:12.949 INFO kablam!    = note: consider using `_x` instead
Oct 10 22:42:12.949 INFO kablam! 
Oct 10 22:42:12.949 INFO kablam! warning: value assigned to `x` is never read
Oct 10 22:42:12.949 INFO kablam!   --> src/main.rs:20:5
Oct 10 22:42:12.949 INFO kablam!    |
Oct 10 22:42:12.949 INFO kablam! 20 |     x = 21;                 // its value can be changed later on
Oct 10 22:42:12.949 INFO kablam!    |     ^
Oct 10 22:42:12.949 INFO kablam!    |
Oct 10 22:42:12.949 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 10 22:42:12.949 INFO kablam! 
Oct 10 22:42:12.949 INFO kablam! warning: unused variable: `s`
Oct 10 22:42:12.949 INFO kablam!   --> src/main.rs:40:13
Oct 10 22:42:12.949 INFO kablam!    |
Oct 10 22:42:12.949 INFO kablam! 40 |         let s = String::from("dynamically allocated string");           // s owns the allocated memory...
Oct 10 22:42:12.949 INFO kablam!    |             ^ help: consider using `_s` instead
Oct 10 22:42:12.949 INFO kablam! 
Oct 10 22:42:12.949 INFO kablam! warning: unused variable: `y`
Oct 10 22:42:12.949 INFO kablam!   --> src/main.rs:50:9
Oct 10 22:42:12.949 INFO kablam!    |
Oct 10 22:42:12.949 INFO kablam! 50 |     let y = x;          // a copy of the value of 'x'
Oct 10 22:42:12.949 INFO kablam!    |         ^ help: consider using `_y` instead
Oct 10 22:42:12.949 INFO kablam! 
Oct 10 22:42:12.949 INFO kablam! warning: unused variable: `s4`
Oct 10 22:42:12.949 INFO kablam!   --> src/main.rs:72:9
Oct 10 22:42:12.949 INFO kablam!    |
Oct 10 22:42:12.949 INFO kablam! 72 |     let s4 = gives_ownership();
Oct 10 22:42:12.949 INFO kablam!    |         ^^ help: consider using `_s4` instead
Oct 10 22:42:12.949 INFO kablam! 
Oct 10 22:42:12.949 INFO kablam! warning: unused variable: `r1`
Oct 10 22:42:12.949 INFO kablam!    --> src/main.rs:105:13
Oct 10 22:42:12.949 INFO kablam!     |
Oct 10 22:42:12.949 INFO kablam! 105 |         let r1 = &mut s1;
Oct 10 22:42:12.949 INFO kablam!     |             ^^ help: consider using `_r1` instead
Oct 10 22:42:12.949 INFO kablam! 
Oct 10 22:42:12.949 INFO kablam! warning: unused variable: `r2`
Oct 10 22:42:12.949 INFO kablam!    --> src/main.rs:110:9
Oct 10 22:42:12.949 INFO kablam!     |
Oct 10 22:42:12.949 INFO kablam! 110 |     let r2 = &s1;                   // but out of the scope of 'r1', we can create a reference again...
Oct 10 22:42:12.949 INFO kablam!     |         ^^ help: consider using `_r2` instead
Oct 10 22:42:12.949 INFO kablam! 
Oct 10 22:42:12.949 INFO kablam! warning: unused variable: `r3`
Oct 10 22:42:12.949 INFO kablam!    --> src/main.rs:111:9
Oct 10 22:42:12.949 INFO kablam!     |
Oct 10 22:42:12.949 INFO kablam! 111 |     let r3 = &s1;                   // ...even multiple immutable ones
Oct 10 22:42:12.949 INFO kablam!     |         ^^ help: consider using `_r3` instead
Oct 10 22:42:12.949 INFO kablam! 
Oct 10 22:42:12.949 INFO kablam! warning: value assigned to `slice3` is never read
Oct 10 22:42:12.949 INFO kablam!    --> src/main.rs:150:13
Oct 10 22:42:12.949 INFO kablam!     |
Oct 10 22:42:12.949 INFO kablam! 150 |     let mut slice3 = &s[1..6];
Oct 10 22:42:12.949 INFO kablam!     |             ^^^^^^
Oct 10 22:42:12.949 INFO kablam! 
Oct 10 22:42:12.949 INFO kablam! warning: unused variable: `slice4`
Oct 10 22:42:12.949 INFO kablam!    --> src/main.rs:155:9
Oct 10 22:42:12.949 INFO kablam!     |
Oct 10 22:42:12.949 INFO kablam! 155 |     let slice4: &[i32];         // the type of each item must be 'i32'
Oct 10 22:42:12.949 INFO kablam!     |         ^^^^^^ help: consider using `_slice4` instead
Oct 10 22:42:12.949 INFO kablam! 
Oct 10 22:42:12.949 INFO kablam! warning: unused variable: `red`
Oct 10 22:42:12.950 INFO kablam!    --> src/main.rs:191:9
Oct 10 22:42:12.950 INFO kablam!     |
Oct 10 22:42:12.950 INFO kablam! 191 |     let red = RGBColor(0xff, 0x00, 0x00);
Oct 10 22:42:12.950 INFO kablam!     |         ^^^ help: consider using `_red` instead
Oct 10 22:42:12.950 INFO kablam! 
Oct 10 22:42:12.950 INFO kablam! warning: unused variable: `foreign`
Oct 10 22:42:12.950 INFO kablam!    --> src/main.rs:233:9
Oct 10 22:42:12.950 INFO kablam!     |
Oct 10 22:42:12.950 INFO kablam! 233 |     let foreign = IpAddress::V6(314159263, 123442);
Oct 10 22:42:12.950 INFO kablam!     |         ^^^^^^^ help: consider using `_foreign` instead
Oct 10 22:42:12.950 INFO kablam! 
Oct 10 22:42:12.950 INFO kablam! warning: unused variable: `some_ip`
Oct 10 22:42:12.950 INFO kablam!    --> src/main.rs:238:9
Oct 10 22:42:12.950 INFO kablam!     |
Oct 10 22:42:12.950 INFO kablam! 238 |     let some_ip = Some(home);
Oct 10 22:42:12.950 INFO kablam!     |         ^^^^^^^ help: consider using `_some_ip` instead
Oct 10 22:42:12.950 INFO kablam! 
Oct 10 22:42:12.950 INFO kablam! warning: unused variable: `absent_ip`
Oct 10 22:42:12.950 INFO kablam!    --> src/main.rs:240:9
Oct 10 22:42:12.950 INFO kablam!     |
Oct 10 22:42:12.950 INFO kablam! 240 |     let absent_ip: Option<IpAddress> = None; 
Oct 10 22:42:12.950 INFO kablam!     |         ^^^^^^^^^ help: consider using `_absent_ip` instead
Oct 10 22:42:12.950 INFO kablam! 
Oct 10 22:42:12.950 INFO kablam! warning: unused variable: `x`
Oct 10 22:42:12.950 INFO kablam!    --> src/main.rs:243:9
Oct 10 22:42:12.950 INFO kablam!     |
Oct 10 22:42:12.950 INFO kablam! 243 |     let x: i8 = 5;
Oct 10 22:42:12.950 INFO kablam!     |         ^ help: consider using `_x` instead
Oct 10 22:42:12.950 INFO kablam! 
Oct 10 22:42:12.950 INFO kablam! warning: unused variable: `y`
Oct 10 22:42:12.950 INFO kablam!    --> src/main.rs:244:9
Oct 10 22:42:12.950 INFO kablam!     |
Oct 10 22:42:12.950 INFO kablam! 244 |     let y: Option<i8> = Some(5);
Oct 10 22:42:12.950 INFO kablam!     |         ^ help: consider using `_y` instead
Oct 10 22:42:12.950 INFO kablam! 
Oct 10 22:42:12.950 INFO kablam! warning: unused variable: `retcode`
Oct 10 22:42:12.950 INFO kablam!    --> src/main.rs:259:9
Oct 10 22:42:12.950 INFO kablam!     |
Oct 10 22:42:12.950 INFO kablam! 259 |     let retcode = match error {     // match forces us to cover all possible cases
Oct 10 22:42:12.950 INFO kablam!     |         ^^^^^^^ help: consider using `_retcode` instead
Oct 10 22:42:12.950 INFO kablam! 
Oct 10 22:42:12.950 INFO kablam! warning: variable does not need to be mutable
Oct 10 22:42:12.950 INFO kablam!    --> src/main.rs:139:9
Oct 10 22:42:12.950 INFO kablam!     |
Oct 10 22:42:12.950 INFO kablam! 139 |     let mut s = String::from("hello world");
Oct 10 22:42:12.950 INFO kablam!     |         ----^
Oct 10 22:42:12.950 INFO kablam!     |         |
Oct 10 22:42:12.950 INFO kablam!     |         help: remove this `mut`
Oct 10 22:42:12.950 INFO kablam!     |
Oct 10 22:42:12.950 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 10 22:42:12.950 INFO kablam! 
Oct 10 22:42:12.971 INFO kablam! warning: variant is never constructed: `NetworkError`
Oct 10 22:42:12.971 INFO kablam!    --> src/main.rs:252:9
Oct 10 22:42:12.971 INFO kablam!     |
Oct 10 22:42:12.971 INFO kablam! 252 |         NetworkError,
Oct 10 22:42:12.971 INFO kablam!     |         ^^^^^^^^^^^^
Oct 10 22:42:12.971 INFO kablam!     |
Oct 10 22:42:12.971 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 10 22:42:12.971 INFO kablam! 
Oct 10 22:42:12.971 INFO kablam! warning: variant is never constructed: `SerilizationError`
Oct 10 22:42:12.971 INFO kablam!    --> src/main.rs:253:9
Oct 10 22:42:12.971 INFO kablam!     |
Oct 10 22:42:12.971 INFO kablam! 253 |         SerilizationError(String),
Oct 10 22:42:12.971 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 10 22:42:12.971 INFO kablam! 
Oct 10 22:42:12.971 INFO kablam! warning: function is never used: `closures`
Oct 10 22:42:12.971 INFO kablam!    --> src/main.rs:310:1
Oct 10 22:42:12.971 INFO kablam!     |
Oct 10 22:42:12.971 INFO kablam! 310 | fn closures() {
Oct 10 22:42:12.971 INFO kablam!     | ^^^^^^^^^^^^^
Oct 10 22:42:12.971 INFO kablam! 
Oct 10 22:42:12.971 INFO kablam! warning: variable `className` should have a snake case name such as `class_name`
Oct 10 22:42:12.971 INFO kablam!    --> src/main.rs:264:41
Oct 10 22:42:12.971 INFO kablam!     |
Oct 10 22:42:12.971 INFO kablam! 264 |         RPCCallError::SerilizationError(className) => {
Oct 10 22:42:12.971 INFO kablam!     |                                         ^^^^^^^^^
Oct 10 22:42:12.971 INFO kablam!     |
Oct 10 22:42:12.971 INFO kablam!     = note: #[warn(non_snake_case)] on by default
Oct 10 22:42:12.971 INFO kablam! 
Oct 10 22:42:13.484 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
Oct 10 22:42:13.488 INFO kablam! su: No module specific data is present
Oct 10 22:42:13.935 INFO running `"docker" "rm" "-f" "23045b50fea73d499b3bdadb34e5bd6bbcc40c9c3ce74783e16628f7c04d88ce"`
Oct 10 22:42:14.308 INFO blam! 23045b50fea73d499b3bdadb34e5bd6bbcc40c9c3ce74783e16628f7c04d88ce
Oct 10 22:42:14.317 INFO running: cargo +0e07c4281c343e9e15a0a8fca79538ad1a8eb513-alt test --frozen --no-run
Oct 10 22:42:14.318 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/test-source/worker-0/rustdoc-test-static-cling/master#0e07c4281c343e9e15a0a8fca79538ad1a8eb513:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/target-dirs/rustdoc-test-static-cling/worker-0/master#0e07c4281c343e9e15a0a8fca79538ad1a8eb513:/target:rw,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" "CMD=cargo +0e07c4281c343e9e15a0a8fca79538ad1a8eb513-alt test --frozen --no-run" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "--network" "none" "crater"`
Oct 10 22:42:14.759 INFO blam! bc6d8c3eceecd3bf3964a3522ebbfd39fab1ce0b6299c58bdd31d41d44c841cb
Oct 10 22:42:14.762 INFO running `"docker" "start" "-a" "bc6d8c3eceecd3bf3964a3522ebbfd39fab1ce0b6299c58bdd31d41d44c841cb"`
Oct 10 22:42:15.752 INFO kablam! usermod: no changes
Oct 10 22:42:15.791 INFO kablam!    Compiling learn-rust v0.1.0 (/source)
Oct 10 22:42:15.908 INFO kablam! warning: unused import: `std::*`
Oct 10 22:42:15.908 INFO kablam!    --> src/main.rs:297:9
Oct 10 22:42:15.908 INFO kablam!     |
Oct 10 22:42:15.908 INFO kablam! 297 |     use std::*;         // glob import from Rust's standard library
Oct 10 22:42:15.908 INFO kablam!     |         ^^^^^^
Oct 10 22:42:15.908 INFO kablam!     |
Oct 10 22:42:15.908 INFO kablam!     = note: #[warn(unused_imports)] on by default
Oct 10 22:42:15.908 INFO kablam! 
Oct 10 22:42:15.987 INFO kablam! warning: unreachable pattern
Oct 10 22:42:15.987 INFO kablam!    --> src/main.rs:269:9
Oct 10 22:42:15.987 INFO kablam!     |
Oct 10 22:42:15.987 INFO kablam! 269 |         _ => -1,    // _ is a placeholder that matches any value - if we put it as last, this will mean what the "default" label menas for "switch" in C++
Oct 10 22:42:15.987 INFO kablam!     |         ^
Oct 10 22:42:15.987 INFO kablam!     |
Oct 10 22:42:15.987 INFO kablam!     = note: #[warn(unreachable_patterns)] on by default
Oct 10 22:42:15.987 INFO kablam! 
Oct 10 22:42:15.987 INFO kablam! warning: unused variable: `x`
Oct 10 22:42:15.987 INFO kablam!   --> src/main.rs:17:9
Oct 10 22:42:15.987 INFO kablam!    |
Oct 10 22:42:15.987 INFO kablam! 17 |     let x = 42;             // (type is inferred by the compiler whenever possible)
Oct 10 22:42:15.987 INFO kablam!    |         ^ help: consider using `_x` instead
Oct 10 22:42:15.988 INFO kablam!    |
Oct 10 22:42:15.988 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 10 22:42:15.988 INFO kablam! 
Oct 10 22:42:15.988 INFO kablam! warning: variable `x` is assigned to, but never used
Oct 10 22:42:15.988 INFO kablam!   --> src/main.rs:19:13
Oct 10 22:42:15.988 INFO kablam!    |
Oct 10 22:42:15.988 INFO kablam! 19 |     let mut x = 42;         // Now 'x' is declared to be mutable, thus...
Oct 10 22:42:15.988 INFO kablam!    |             ^
Oct 10 22:42:15.988 INFO kablam!    |
Oct 10 22:42:15.988 INFO kablam!    = note: consider using `_x` instead
Oct 10 22:42:15.988 INFO kablam! 
Oct 10 22:42:15.988 INFO kablam! warning: value assigned to `x` is never read
Oct 10 22:42:15.988 INFO kablam!   --> src/main.rs:20:5
Oct 10 22:42:15.988 INFO kablam!    |
Oct 10 22:42:15.988 INFO kablam! 20 |     x = 21;                 // its value can be changed later on
Oct 10 22:42:15.988 INFO kablam!    |     ^
Oct 10 22:42:15.988 INFO kablam!    |
Oct 10 22:42:15.988 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 10 22:42:15.988 INFO kablam! 
Oct 10 22:42:15.988 INFO kablam! warning: unused variable: `s`
Oct 10 22:42:15.988 INFO kablam!   --> src/main.rs:40:13
Oct 10 22:42:15.988 INFO kablam!    |
Oct 10 22:42:15.988 INFO kablam! 40 |         let s = String::from("dynamically allocated string");           // s owns the allocated memory...
Oct 10 22:42:15.988 INFO kablam!    |             ^ help: consider using `_s` instead
Oct 10 22:42:15.988 INFO kablam! 
Oct 10 22:42:15.988 INFO kablam! warning: unused variable: `y`
Oct 10 22:42:15.988 INFO kablam!   --> src/main.rs:50:9
Oct 10 22:42:15.988 INFO kablam!    |
Oct 10 22:42:15.988 INFO kablam! 50 |     let y = x;          // a copy of the value of 'x'
Oct 10 22:42:15.988 INFO kablam!    |         ^ help: consider using `_y` instead
Oct 10 22:42:15.996 INFO kablam! 
Oct 10 22:42:15.996 INFO kablam! warning: unused variable: `s4`
Oct 10 22:42:15.996 INFO kablam!   --> src/main.rs:72:9
Oct 10 22:42:15.996 INFO kablam!    |
Oct 10 22:42:15.996 INFO kablam! 72 |     let s4 = gives_ownership();
Oct 10 22:42:15.996 INFO kablam!    |         ^^ help: consider using `_s4` instead
Oct 10 22:42:15.996 INFO kablam! 
Oct 10 22:42:15.996 INFO kablam! warning: unused variable: `r1`
Oct 10 22:42:15.996 INFO kablam!    --> src/main.rs:105:13
Oct 10 22:42:15.996 INFO kablam!     |
Oct 10 22:42:15.996 INFO kablam! 105 |         let r1 = &mut s1;
Oct 10 22:42:15.996 INFO kablam!     |             ^^ help: consider using `_r1` instead
Oct 10 22:42:15.996 INFO kablam! 
Oct 10 22:42:15.996 INFO kablam! warning: unused variable: `r2`
Oct 10 22:42:15.996 INFO kablam!    --> src/main.rs:110:9
Oct 10 22:42:15.996 INFO kablam!     |
Oct 10 22:42:15.996 INFO kablam! 110 |     let r2 = &s1;                   // but out of the scope of 'r1', we can create a reference again...
Oct 10 22:42:15.996 INFO kablam!     |         ^^ help: consider using `_r2` instead
Oct 10 22:42:15.996 INFO kablam! 
Oct 10 22:42:15.996 INFO kablam! warning: unused variable: `r3`
Oct 10 22:42:15.996 INFO kablam!    --> src/main.rs:111:9
Oct 10 22:42:15.996 INFO kablam!     |
Oct 10 22:42:15.996 INFO kablam! 111 |     let r3 = &s1;                   // ...even multiple immutable ones
Oct 10 22:42:15.996 INFO kablam!     |         ^^ help: consider using `_r3` instead
Oct 10 22:42:15.996 INFO kablam! 
Oct 10 22:42:15.996 INFO kablam! warning: value assigned to `slice3` is never read
Oct 10 22:42:15.996 INFO kablam!    --> src/main.rs:150:13
Oct 10 22:42:15.996 INFO kablam!     |
Oct 10 22:42:15.996 INFO kablam! 150 |     let mut slice3 = &s[1..6];
Oct 10 22:42:15.996 INFO kablam!     |             ^^^^^^
Oct 10 22:42:15.996 INFO kablam! 
Oct 10 22:42:15.996 INFO kablam! warning: unused variable: `slice4`
Oct 10 22:42:15.996 INFO kablam!    --> src/main.rs:155:9
Oct 10 22:42:15.996 INFO kablam!     |
Oct 10 22:42:15.996 INFO kablam! 155 |     let slice4: &[i32];         // the type of each item must be 'i32'
Oct 10 22:42:15.996 INFO kablam!     |         ^^^^^^ help: consider using `_slice4` instead
Oct 10 22:42:15.996 INFO kablam! 
Oct 10 22:42:15.996 INFO kablam! warning: unused variable: `red`
Oct 10 22:42:15.996 INFO kablam!    --> src/main.rs:191:9
Oct 10 22:42:15.996 INFO kablam!     |
Oct 10 22:42:15.996 INFO kablam! 191 |     let red = RGBColor(0xff, 0x00, 0x00);
Oct 10 22:42:15.996 INFO kablam!     |         ^^^ help: consider using `_red` instead
Oct 10 22:42:15.996 INFO kablam! 
Oct 10 22:42:15.996 INFO kablam! warning: unused variable: `foreign`
Oct 10 22:42:15.996 INFO kablam!    --> src/main.rs:233:9
Oct 10 22:42:15.996 INFO kablam!     |
Oct 10 22:42:15.996 INFO kablam! 233 |     let foreign = IpAddress::V6(314159263, 123442);
Oct 10 22:42:15.996 INFO kablam!     |         ^^^^^^^ help: consider using `_foreign` instead
Oct 10 22:42:15.996 INFO kablam! 
Oct 10 22:42:15.997 INFO kablam! warning: unused variable: `some_ip`
Oct 10 22:42:15.997 INFO kablam!    --> src/main.rs:238:9
Oct 10 22:42:15.997 INFO kablam!     |
Oct 10 22:42:15.997 INFO kablam! 238 |     let some_ip = Some(home);
Oct 10 22:42:15.997 INFO kablam!     |         ^^^^^^^ help: consider using `_some_ip` instead
Oct 10 22:42:15.997 INFO kablam! 
Oct 10 22:42:15.997 INFO kablam! warning: unused variable: `absent_ip`
Oct 10 22:42:15.997 INFO kablam!    --> src/main.rs:240:9
Oct 10 22:42:15.997 INFO kablam!     |
Oct 10 22:42:15.997 INFO kablam! 240 |     let absent_ip: Option<IpAddress> = None; 
Oct 10 22:42:15.997 INFO kablam!     |         ^^^^^^^^^ help: consider using `_absent_ip` instead
Oct 10 22:42:15.997 INFO kablam! 
Oct 10 22:42:15.997 INFO kablam! warning: unused variable: `x`
Oct 10 22:42:15.997 INFO kablam!    --> src/main.rs:243:9
Oct 10 22:42:15.997 INFO kablam!     |
Oct 10 22:42:15.997 INFO kablam! 243 |     let x: i8 = 5;
Oct 10 22:42:15.997 INFO kablam!     |         ^ help: consider using `_x` instead
Oct 10 22:42:15.997 INFO kablam! 
Oct 10 22:42:15.997 INFO kablam! warning: unused variable: `y`
Oct 10 22:42:15.997 INFO kablam!    --> src/main.rs:244:9
Oct 10 22:42:15.997 INFO kablam!     |
Oct 10 22:42:15.997 INFO kablam! 244 |     let y: Option<i8> = Some(5);
Oct 10 22:42:15.997 INFO kablam!     |         ^ help: consider using `_y` instead
Oct 10 22:42:15.997 INFO kablam! 
Oct 10 22:42:15.997 INFO kablam! warning: unused variable: `retcode`
Oct 10 22:42:15.997 INFO kablam!    --> src/main.rs:259:9
Oct 10 22:42:15.997 INFO kablam!     |
Oct 10 22:42:15.997 INFO kablam! 259 |     let retcode = match error {     // match forces us to cover all possible cases
Oct 10 22:42:15.997 INFO kablam!     |         ^^^^^^^ help: consider using `_retcode` instead
Oct 10 22:42:15.997 INFO kablam! 
Oct 10 22:42:16.020 INFO kablam! warning: variable does not need to be mutable
Oct 10 22:42:16.020 INFO kablam!    --> src/main.rs:139:9
Oct 10 22:42:16.020 INFO kablam!     |
Oct 10 22:42:16.020 INFO kablam! 139 |     let mut s = String::from("hello world");
Oct 10 22:42:16.020 INFO kablam!     |         ----^
Oct 10 22:42:16.020 INFO kablam!     |         |
Oct 10 22:42:16.020 INFO kablam!     |         help: remove this `mut`
Oct 10 22:42:16.020 INFO kablam!     |
Oct 10 22:42:16.020 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 10 22:42:16.020 INFO kablam! 
Oct 10 22:42:16.020 INFO kablam! warning: variant is never constructed: `NetworkError`
Oct 10 22:42:16.020 INFO kablam!    --> src/main.rs:252:9
Oct 10 22:42:16.020 INFO kablam!     |
Oct 10 22:42:16.020 INFO kablam! 252 |         NetworkError,
Oct 10 22:42:16.020 INFO kablam!     |         ^^^^^^^^^^^^
Oct 10 22:42:16.020 INFO kablam!     |
Oct 10 22:42:16.020 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 10 22:42:16.020 INFO kablam! 
Oct 10 22:42:16.020 INFO kablam! warning: variant is never constructed: `SerilizationError`
Oct 10 22:42:16.020 INFO kablam!    --> src/main.rs:253:9
Oct 10 22:42:16.020 INFO kablam!     |
Oct 10 22:42:16.020 INFO kablam! 253 |         SerilizationError(String),
Oct 10 22:42:16.020 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 10 22:42:16.020 INFO kablam! 
Oct 10 22:42:16.020 INFO kablam! warning: function is never used: `closures`
Oct 10 22:42:16.020 INFO kablam!    --> src/main.rs:310:1
Oct 10 22:42:16.020 INFO kablam!     |
Oct 10 22:42:16.020 INFO kablam! 310 | fn closures() {
Oct 10 22:42:16.020 INFO kablam!     | ^^^^^^^^^^^^^
Oct 10 22:42:16.020 INFO kablam! 
Oct 10 22:42:16.020 INFO kablam! warning: variable `className` should have a snake case name such as `class_name`
Oct 10 22:42:16.020 INFO kablam!    --> src/main.rs:264:41
Oct 10 22:42:16.020 INFO kablam!     |
Oct 10 22:42:16.020 INFO kablam! 264 |         RPCCallError::SerilizationError(className) => {
Oct 10 22:42:16.020 INFO kablam!     |                                         ^^^^^^^^^
Oct 10 22:42:16.020 INFO kablam!     |
Oct 10 22:42:16.020 INFO kablam!     = note: #[warn(non_snake_case)] on by default
Oct 10 22:42:16.020 INFO kablam! 
Oct 10 22:42:16.412 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
Oct 10 22:42:16.414 INFO kablam! su: No module specific data is present
Oct 10 22:42:16.946 INFO running `"docker" "rm" "-f" "bc6d8c3eceecd3bf3964a3522ebbfd39fab1ce0b6299c58bdd31d41d44c841cb"`
Oct 10 22:42:17.256 INFO blam! bc6d8c3eceecd3bf3964a3522ebbfd39fab1ce0b6299c58bdd31d41d44c841cb
Oct 10 22:42:17.257 INFO running: cargo +0e07c4281c343e9e15a0a8fca79538ad1a8eb513-alt test --frozen
Oct 10 22:42:17.257 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/test-source/worker-0/rustdoc-test-static-cling/master#0e07c4281c343e9e15a0a8fca79538ad1a8eb513:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/target-dirs/rustdoc-test-static-cling/worker-0/master#0e07c4281c343e9e15a0a8fca79538ad1a8eb513:/target:rw,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" "CMD=cargo +0e07c4281c343e9e15a0a8fca79538ad1a8eb513-alt test --frozen" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "--network" "none" "crater"`
Oct 10 22:42:17.700 INFO blam! ca5b29924032eb9b5c10be187fd8d9004fc524b083ea5ab220714ad5f2ded3ee
Oct 10 22:42:17.712 INFO running `"docker" "start" "-a" "ca5b29924032eb9b5c10be187fd8d9004fc524b083ea5ab220714ad5f2ded3ee"`
Oct 10 22:42:19.033 INFO kablam! usermod: no changes
Oct 10 22:42:19.086 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Oct 10 22:42:19.089 INFO kablam!      Running /target/debug/deps/learn_rust-2414fc84b1ed024d
Oct 10 22:42:19.110 INFO blam! 
Oct 10 22:42:19.111 INFO blam! running 0 tests
Oct 10 22:42:19.112 INFO blam! 
Oct 10 22:42:19.112 INFO blam! test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Oct 10 22:42:19.112 INFO blam! 
Oct 10 22:42:19.116 INFO kablam! su: No module specific data is present
Oct 10 22:42:19.817 INFO running `"docker" "rm" "-f" "ca5b29924032eb9b5c10be187fd8d9004fc524b083ea5ab220714ad5f2ded3ee"`
Oct 10 22:42:20.086 INFO blam! ca5b29924032eb9b5c10be187fd8d9004fc524b083ea5ab220714ad5f2ded3ee