Nov 06 12:13:14.142 INFO checking tperdue321/rust_ownership against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 06 12:13:14.142 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-1/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/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 +24e66c28980442a48d9458f1a4f9b76cc722dc8a-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 06 12:13:14.522 INFO blam! 79c7a1ffdbc20ed3d5a1c73b9372b5535bd7e7b5ddd5847491004b4ece89deca
Nov 06 12:13:14.528 INFO running `"docker" "start" "-a" "79c7a1ffdbc20ed3d5a1c73b9372b5535bd7e7b5ddd5847491004b4ece89deca"`
Nov 06 12:13:15.841 INFO kablam! usermod: no changes
Nov 06 12:13:15.884 INFO kablam!     Checking ownership v0.1.0 (/source)
Nov 06 12:13:16.128 INFO kablam! warning: unused variable: `string`
Nov 06 12:13:16.129 INFO kablam!   --> src/main.rs:13:13
Nov 06 12:13:16.129 INFO kablam!    |
Nov 06 12:13:16.129 INFO kablam! 13 |         let string = "hello"; // string is valid from here forward
Nov 06 12:13:16.130 INFO kablam!    |             ^^^^^^ help: consider using `_string` instead
Nov 06 12:13:16.130 INFO kablam!    |
Nov 06 12:13:16.130 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 06 12:13:16.131 INFO kablam! 
Nov 06 12:13:16.131 INFO kablam! warning: unused variable: `s2`
Nov 06 12:13:16.131 INFO kablam!   --> src/main.rs:40:9
Nov 06 12:13:16.131 INFO kablam!    |
Nov 06 12:13:16.132 INFO kablam! 40 |     let s2 = s1;
Nov 06 12:13:16.132 INFO kablam!    |         ^^ help: consider using `_s2` instead
Nov 06 12:13:16.132 INFO kablam! 
Nov 06 12:13:16.133 INFO kablam! warning: unused variable: `s1`
Nov 06 12:13:16.133 INFO kablam!   --> src/main.rs:68:9
Nov 06 12:13:16.133 INFO kablam!    |
Nov 06 12:13:16.133 INFO kablam! 68 |     let s1 = gives_ownership();         // gives_ownership moves its return
Nov 06 12:13:16.134 INFO kablam!    |         ^^ help: consider using `_s1` instead
Nov 06 12:13:16.134 INFO kablam! 
Nov 06 12:13:16.134 INFO kablam! warning: unused variable: `r1`
Nov 06 12:13:16.135 INFO kablam!   --> src/main.rs:98:9
Nov 06 12:13:16.135 INFO kablam!    |
Nov 06 12:13:16.135 INFO kablam! 98 |     let r1 = &mut s2;
Nov 06 12:13:16.136 INFO kablam!    |         ^^ help: consider using `_r1` instead
Nov 06 12:13:16.136 INFO kablam! 
Nov 06 12:13:16.136 INFO kablam! warning: unused variable: `r3`
Nov 06 12:13:16.136 INFO kablam!    --> src/main.rs:107:13
Nov 06 12:13:16.137 INFO kablam!     |
Nov 06 12:13:16.137 INFO kablam! 107 |         let r3 = &mut s3;
Nov 06 12:13:16.137 INFO kablam!     |             ^^ help: consider using `_r3` instead
Nov 06 12:13:16.138 INFO kablam! 
Nov 06 12:13:16.138 INFO kablam! warning: unused variable: `r4`
Nov 06 12:13:16.140 INFO kablam!    --> src/main.rs:110:9
Nov 06 12:13:16.140 INFO kablam!     |
Nov 06 12:13:16.141 INFO kablam! 110 |     let r4 = &mut s3;
Nov 06 12:13:16.141 INFO kablam!     |         ^^ help: consider using `_r4` instead
Nov 06 12:13:16.141 INFO kablam! 
Nov 06 12:13:16.144 INFO kablam! warning: unused variable: `r1`
Nov 06 12:13:16.144 INFO kablam!    --> src/main.rs:113:9
Nov 06 12:13:16.145 INFO kablam!     |
Nov 06 12:13:16.145 INFO kablam! 113 |     let r1 = &s; // immutable ref
Nov 06 12:13:16.145 INFO kablam!     |         ^^ help: consider using `_r1` instead
Nov 06 12:13:16.145 INFO kablam! 
Nov 06 12:13:16.146 INFO kablam! warning: unused variable: `r2`
Nov 06 12:13:16.148 INFO kablam!    --> src/main.rs:114:9
Nov 06 12:13:16.148 INFO kablam!     |
Nov 06 12:13:16.149 INFO kablam! 114 |     let r2 = &s; // second because as many refs can read the same data safely
Nov 06 12:13:16.149 INFO kablam!     |         ^^ help: consider using `_r2` instead
Nov 06 12:13:16.149 INFO kablam! 
Nov 06 12:13:16.149 INFO kablam! warning: unused variable: `slice`
Nov 06 12:13:16.150 INFO kablam!    --> src/main.rs:140:9
Nov 06 12:13:16.156 INFO kablam!     |
Nov 06 12:13:16.157 INFO kablam! 140 |     let slice = &s[0..2];   // same
Nov 06 12:13:16.157 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 06 12:13:16.157 INFO kablam! 
Nov 06 12:13:16.158 INFO kablam! warning: unused variable: `slice`
Nov 06 12:13:16.158 INFO kablam!    --> src/main.rs:141:9
Nov 06 12:13:16.158 INFO kablam!     |
Nov 06 12:13:16.158 INFO kablam! 141 |     let slice = &s[..2];    // same
Nov 06 12:13:16.159 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 06 12:13:16.159 INFO kablam! 
Nov 06 12:13:16.159 INFO kablam! warning: unused variable: `slice`
Nov 06 12:13:16.160 INFO kablam!    --> src/main.rs:145:9
Nov 06 12:13:16.164 INFO kablam!     |
Nov 06 12:13:16.164 INFO kablam! 145 |     let slice = &s[2..len]; // same
Nov 06 12:13:16.164 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 06 12:13:16.164 INFO kablam! 
Nov 06 12:13:16.164 INFO kablam! warning: unused variable: `slice`
Nov 06 12:13:16.164 INFO kablam!    --> src/main.rs:146:9
Nov 06 12:13:16.164 INFO kablam!     |
Nov 06 12:13:16.164 INFO kablam! 146 |     let slice = &s[2..];    // same
Nov 06 12:13:16.164 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 06 12:13:16.164 INFO kablam! 
Nov 06 12:13:16.164 INFO kablam! warning: unused variable: `slice`
Nov 06 12:13:16.164 INFO kablam!    --> src/main.rs:148:9
Nov 06 12:13:16.164 INFO kablam!     |
Nov 06 12:13:16.164 INFO kablam! 148 |     let slice = &s[0..len]; // same
Nov 06 12:13:16.164 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 06 12:13:16.164 INFO kablam! 
Nov 06 12:13:16.164 INFO kablam! warning: unused variable: `slice`
Nov 06 12:13:16.164 INFO kablam!    --> src/main.rs:149:9
Nov 06 12:13:16.164 INFO kablam!     |
Nov 06 12:13:16.164 INFO kablam! 149 |     let slice = &s[..];     // same
Nov 06 12:13:16.164 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 06 12:13:16.164 INFO kablam! 
Nov 06 12:13:16.164 INFO kablam! warning: unused variable: `slice`
Nov 06 12:13:16.164 INFO kablam!    --> src/main.rs:166:9
Nov 06 12:13:16.164 INFO kablam!     |
Nov 06 12:13:16.164 INFO kablam! 166 |     let slice = &a[0..2];
Nov 06 12:13:16.164 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 06 12:13:16.164 INFO kablam! 
Nov 06 12:13:16.164 INFO kablam! warning: variable does not need to be mutable
Nov 06 12:13:16.164 INFO kablam!    --> src/main.rs:112:9
Nov 06 12:13:16.164 INFO kablam!     |
Nov 06 12:13:16.164 INFO kablam! 112 |     let mut s = String::from("hello s");
Nov 06 12:13:16.164 INFO kablam!     |         ----^
Nov 06 12:13:16.164 INFO kablam!     |         |
Nov 06 12:13:16.164 INFO kablam!     |         help: remove this `mut`
Nov 06 12:13:16.165 INFO kablam!     |
Nov 06 12:13:16.165 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 06 12:13:16.165 INFO kablam! 
Nov 06 12:13:16.184 INFO kablam! warning: unused variable: `string`
Nov 06 12:13:16.184 INFO kablam!   --> src/main.rs:13:13
Nov 06 12:13:16.184 INFO kablam!    |
Nov 06 12:13:16.184 INFO kablam! 13 |         let string = "hello"; // string is valid from here forward
Nov 06 12:13:16.184 INFO kablam!    |             ^^^^^^ help: consider using `_string` instead
Nov 06 12:13:16.184 INFO kablam!    |
Nov 06 12:13:16.184 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 06 12:13:16.184 INFO kablam! 
Nov 06 12:13:16.184 INFO kablam! warning: unused variable: `s2`
Nov 06 12:13:16.184 INFO kablam!   --> src/main.rs:40:9
Nov 06 12:13:16.184 INFO kablam!    |
Nov 06 12:13:16.184 INFO kablam! 40 |     let s2 = s1;
Nov 06 12:13:16.184 INFO kablam!    |         ^^ help: consider using `_s2` instead
Nov 06 12:13:16.184 INFO kablam! 
Nov 06 12:13:16.184 INFO kablam! warning: unused variable: `s1`
Nov 06 12:13:16.184 INFO kablam!   --> src/main.rs:68:9
Nov 06 12:13:16.184 INFO kablam!    |
Nov 06 12:13:16.184 INFO kablam! 68 |     let s1 = gives_ownership();         // gives_ownership moves its return
Nov 06 12:13:16.184 INFO kablam!    |         ^^ help: consider using `_s1` instead
Nov 06 12:13:16.184 INFO kablam! 
Nov 06 12:13:16.192 INFO kablam! warning: unused variable: `r1`
Nov 06 12:13:16.192 INFO kablam!   --> src/main.rs:98:9
Nov 06 12:13:16.192 INFO kablam!    |
Nov 06 12:13:16.192 INFO kablam! 98 |     let r1 = &mut s2;
Nov 06 12:13:16.192 INFO kablam!    |         ^^ help: consider using `_r1` instead
Nov 06 12:13:16.192 INFO kablam! 
Nov 06 12:13:16.192 INFO kablam! warning: unused variable: `r3`
Nov 06 12:13:16.192 INFO kablam!    --> src/main.rs:107:13
Nov 06 12:13:16.192 INFO kablam!     |
Nov 06 12:13:16.192 INFO kablam! 107 |         let r3 = &mut s3;
Nov 06 12:13:16.192 INFO kablam!     |             ^^ help: consider using `_r3` instead
Nov 06 12:13:16.192 INFO kablam! 
Nov 06 12:13:16.192 INFO kablam! warning: unused variable: `r4`
Nov 06 12:13:16.192 INFO kablam!    --> src/main.rs:110:9
Nov 06 12:13:16.192 INFO kablam!     |
Nov 06 12:13:16.192 INFO kablam! 110 |     let r4 = &mut s3;
Nov 06 12:13:16.192 INFO kablam!     |         ^^ help: consider using `_r4` instead
Nov 06 12:13:16.192 INFO kablam! 
Nov 06 12:13:16.192 INFO kablam! warning: unused variable: `r1`
Nov 06 12:13:16.192 INFO kablam!    --> src/main.rs:113:9
Nov 06 12:13:16.192 INFO kablam!     |
Nov 06 12:13:16.192 INFO kablam! 113 |     let r1 = &s; // immutable ref
Nov 06 12:13:16.192 INFO kablam!     |         ^^ help: consider using `_r1` instead
Nov 06 12:13:16.192 INFO kablam! 
Nov 06 12:13:16.192 INFO kablam! warning: unused variable: `r2`
Nov 06 12:13:16.192 INFO kablam!    --> src/main.rs:114:9
Nov 06 12:13:16.192 INFO kablam!     |
Nov 06 12:13:16.192 INFO kablam! 114 |     let r2 = &s; // second because as many refs can read the same data safely
Nov 06 12:13:16.192 INFO kablam!     |         ^^ help: consider using `_r2` instead
Nov 06 12:13:16.192 INFO kablam! 
Nov 06 12:13:16.192 INFO kablam! warning: unused variable: `slice`
Nov 06 12:13:16.192 INFO kablam!    --> src/main.rs:140:9
Nov 06 12:13:16.192 INFO kablam!     |
Nov 06 12:13:16.192 INFO kablam! 140 |     let slice = &s[0..2];   // same
Nov 06 12:13:16.192 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 06 12:13:16.192 INFO kablam! 
Nov 06 12:13:16.192 INFO kablam! warning: unused variable: `slice`
Nov 06 12:13:16.192 INFO kablam!    --> src/main.rs:141:9
Nov 06 12:13:16.192 INFO kablam!     |
Nov 06 12:13:16.192 INFO kablam! 141 |     let slice = &s[..2];    // same
Nov 06 12:13:16.192 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 06 12:13:16.192 INFO kablam! 
Nov 06 12:13:16.192 INFO kablam! warning: unused variable: `slice`
Nov 06 12:13:16.192 INFO kablam!    --> src/main.rs:145:9
Nov 06 12:13:16.192 INFO kablam!     |
Nov 06 12:13:16.192 INFO kablam! 145 |     let slice = &s[2..len]; // same
Nov 06 12:13:16.192 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 06 12:13:16.192 INFO kablam! 
Nov 06 12:13:16.193 INFO kablam! warning: unused variable: `slice`
Nov 06 12:13:16.193 INFO kablam!    --> src/main.rs:146:9
Nov 06 12:13:16.193 INFO kablam!     |
Nov 06 12:13:16.193 INFO kablam! 146 |     let slice = &s[2..];    // same
Nov 06 12:13:16.193 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 06 12:13:16.193 INFO kablam! 
Nov 06 12:13:16.193 INFO kablam! warning: unused variable: `slice`
Nov 06 12:13:16.193 INFO kablam!    --> src/main.rs:148:9
Nov 06 12:13:16.193 INFO kablam!     |
Nov 06 12:13:16.193 INFO kablam! 148 |     let slice = &s[0..len]; // same
Nov 06 12:13:16.193 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 06 12:13:16.193 INFO kablam! 
Nov 06 12:13:16.193 INFO kablam! warning: unused variable: `slice`
Nov 06 12:13:16.193 INFO kablam!    --> src/main.rs:149:9
Nov 06 12:13:16.193 INFO kablam!     |
Nov 06 12:13:16.193 INFO kablam! 149 |     let slice = &s[..];     // same
Nov 06 12:13:16.193 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 06 12:13:16.193 INFO kablam! 
Nov 06 12:13:16.193 INFO kablam! warning: unused variable: `slice`
Nov 06 12:13:16.193 INFO kablam!    --> src/main.rs:166:9
Nov 06 12:13:16.193 INFO kablam!     |
Nov 06 12:13:16.193 INFO kablam! 166 |     let slice = &a[0..2];
Nov 06 12:13:16.193 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 06 12:13:16.193 INFO kablam! 
Nov 06 12:13:16.205 INFO kablam! warning: variable does not need to be mutable
Nov 06 12:13:16.205 INFO kablam!    --> src/main.rs:112:9
Nov 06 12:13:16.205 INFO kablam!     |
Nov 06 12:13:16.205 INFO kablam! 112 |     let mut s = String::from("hello s");
Nov 06 12:13:16.205 INFO kablam!     |         ----^
Nov 06 12:13:16.205 INFO kablam!     |         |
Nov 06 12:13:16.205 INFO kablam!     |         help: remove this `mut`
Nov 06 12:13:16.205 INFO kablam!     |
Nov 06 12:13:16.205 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 06 12:13:16.205 INFO kablam! 
Nov 06 12:13:16.257 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
Nov 06 12:13:16.257 INFO kablam! su: No module specific data is present
Nov 06 12:13:17.011 INFO running `"docker" "rm" "-f" "79c7a1ffdbc20ed3d5a1c73b9372b5535bd7e7b5ddd5847491004b4ece89deca"`
Nov 06 12:13:17.332 INFO blam! 79c7a1ffdbc20ed3d5a1c73b9372b5535bd7e7b5ddd5847491004b4ece89deca