Nov 02 04:44:22.296 INFO checking tperdue321/rust_ownership against try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7 for pr-55517
Nov 02 04:44:22.296 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-7/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55517/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/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 +dc8b02d6f1e93f212fc39844ea688b634b4a03c7-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 02 04:44:22.694 INFO blam! 171181584ae3d063fcbe1130786bcf61fc37cce3bfc81b1291fe447324a7da73
Nov 02 04:44:22.700 INFO running `"docker" "start" "-a" "171181584ae3d063fcbe1130786bcf61fc37cce3bfc81b1291fe447324a7da73"`
Nov 02 04:44:24.376 INFO kablam! usermod: no changes
Nov 02 04:44:24.484 INFO kablam!     Checking ownership v0.1.0 (/source)
Nov 02 04:44:24.876 INFO kablam! warning: unused variable: `string`
Nov 02 04:44:24.876 INFO kablam!   --> src/main.rs:13:13
Nov 02 04:44:24.876 INFO kablam!    |
Nov 02 04:44:24.876 INFO kablam! 13 |         let string = "hello"; // string is valid from here forward
Nov 02 04:44:24.876 INFO kablam!    |             ^^^^^^ help: consider using `_string` instead
Nov 02 04:44:24.876 INFO kablam!    |
Nov 02 04:44:24.876 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 02 04:44:24.876 INFO kablam! 
Nov 02 04:44:24.876 INFO kablam! warning: unused variable: `s2`
Nov 02 04:44:24.876 INFO kablam!   --> src/main.rs:40:9
Nov 02 04:44:24.876 INFO kablam!    |
Nov 02 04:44:24.876 INFO kablam! 40 |     let s2 = s1;
Nov 02 04:44:24.876 INFO kablam!    |         ^^ help: consider using `_s2` instead
Nov 02 04:44:24.876 INFO kablam! 
Nov 02 04:44:24.876 INFO kablam! warning: unused variable: `s1`
Nov 02 04:44:24.876 INFO kablam!   --> src/main.rs:68:9
Nov 02 04:44:24.876 INFO kablam!    |
Nov 02 04:44:24.876 INFO kablam! 68 |     let s1 = gives_ownership();         // gives_ownership moves its return
Nov 02 04:44:24.876 INFO kablam!    |         ^^ help: consider using `_s1` instead
Nov 02 04:44:24.876 INFO kablam! 
Nov 02 04:44:24.876 INFO kablam! warning: unused variable: `r1`
Nov 02 04:44:24.876 INFO kablam!   --> src/main.rs:98:9
Nov 02 04:44:24.876 INFO kablam!    |
Nov 02 04:44:24.876 INFO kablam! 98 |     let r1 = &mut s2;
Nov 02 04:44:24.876 INFO kablam!    |         ^^ help: consider using `_r1` instead
Nov 02 04:44:24.876 INFO kablam! 
Nov 02 04:44:24.876 INFO kablam! warning: unused variable: `r3`
Nov 02 04:44:24.876 INFO kablam!    --> src/main.rs:107:13
Nov 02 04:44:24.876 INFO kablam!     |
Nov 02 04:44:24.876 INFO kablam! 107 |         let r3 = &mut s3;
Nov 02 04:44:24.876 INFO kablam!     |             ^^ help: consider using `_r3` instead
Nov 02 04:44:24.876 INFO kablam! 
Nov 02 04:44:24.876 INFO kablam! warning: unused variable: `r4`
Nov 02 04:44:24.876 INFO kablam!    --> src/main.rs:110:9
Nov 02 04:44:24.876 INFO kablam!     |
Nov 02 04:44:24.876 INFO kablam! 110 |     let r4 = &mut s3;
Nov 02 04:44:24.876 INFO kablam!     |         ^^ help: consider using `_r4` instead
Nov 02 04:44:24.876 INFO kablam! 
Nov 02 04:44:24.876 INFO kablam! warning: unused variable: `r1`
Nov 02 04:44:24.876 INFO kablam!    --> src/main.rs:113:9
Nov 02 04:44:24.877 INFO kablam!     |
Nov 02 04:44:24.877 INFO kablam! 113 |     let r1 = &s; // immutable ref
Nov 02 04:44:24.877 INFO kablam!     |         ^^ help: consider using `_r1` instead
Nov 02 04:44:24.877 INFO kablam! 
Nov 02 04:44:24.877 INFO kablam! warning: unused variable: `r2`
Nov 02 04:44:24.877 INFO kablam!    --> src/main.rs:114:9
Nov 02 04:44:24.877 INFO kablam!     |
Nov 02 04:44:24.877 INFO kablam! 114 |     let r2 = &s; // second because as many refs can read the same data safely
Nov 02 04:44:24.877 INFO kablam!     |         ^^ help: consider using `_r2` instead
Nov 02 04:44:24.877 INFO kablam! 
Nov 02 04:44:24.877 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.877 INFO kablam!    --> src/main.rs:140:9
Nov 02 04:44:24.877 INFO kablam!     |
Nov 02 04:44:24.877 INFO kablam! 140 |     let slice = &s[0..2];   // same
Nov 02 04:44:24.877 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.877 INFO kablam! 
Nov 02 04:44:24.877 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.877 INFO kablam!    --> src/main.rs:141:9
Nov 02 04:44:24.877 INFO kablam!     |
Nov 02 04:44:24.877 INFO kablam! 141 |     let slice = &s[..2];    // same
Nov 02 04:44:24.877 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.877 INFO kablam! 
Nov 02 04:44:24.877 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.877 INFO kablam!    --> src/main.rs:145:9
Nov 02 04:44:24.877 INFO kablam!     |
Nov 02 04:44:24.877 INFO kablam! 145 |     let slice = &s[2..len]; // same
Nov 02 04:44:24.877 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.877 INFO kablam! 
Nov 02 04:44:24.877 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.877 INFO kablam!    --> src/main.rs:146:9
Nov 02 04:44:24.877 INFO kablam!     |
Nov 02 04:44:24.877 INFO kablam! 146 |     let slice = &s[2..];    // same
Nov 02 04:44:24.877 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.877 INFO kablam! 
Nov 02 04:44:24.877 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.877 INFO kablam!    --> src/main.rs:148:9
Nov 02 04:44:24.877 INFO kablam!     |
Nov 02 04:44:24.877 INFO kablam! 148 |     let slice = &s[0..len]; // same
Nov 02 04:44:24.877 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.877 INFO kablam! 
Nov 02 04:44:24.877 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.877 INFO kablam!    --> src/main.rs:149:9
Nov 02 04:44:24.877 INFO kablam!     |
Nov 02 04:44:24.877 INFO kablam! 149 |     let slice = &s[..];     // same
Nov 02 04:44:24.877 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.877 INFO kablam! 
Nov 02 04:44:24.877 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.877 INFO kablam!    --> src/main.rs:166:9
Nov 02 04:44:24.877 INFO kablam!     |
Nov 02 04:44:24.877 INFO kablam! 166 |     let slice = &a[0..2];
Nov 02 04:44:24.877 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.877 INFO kablam! 
Nov 02 04:44:24.904 INFO kablam! warning: variable does not need to be mutable
Nov 02 04:44:24.904 INFO kablam!    --> src/main.rs:112:9
Nov 02 04:44:24.904 INFO kablam!     |
Nov 02 04:44:24.904 INFO kablam! 112 |     let mut s = String::from("hello s");
Nov 02 04:44:24.904 INFO kablam!     |         ----^
Nov 02 04:44:24.904 INFO kablam!     |         |
Nov 02 04:44:24.904 INFO kablam!     |         help: remove this `mut`
Nov 02 04:44:24.904 INFO kablam!     |
Nov 02 04:44:24.904 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 02 04:44:24.904 INFO kablam! 
Nov 02 04:44:24.924 INFO kablam! warning: unused variable: `string`
Nov 02 04:44:24.924 INFO kablam!   --> src/main.rs:13:13
Nov 02 04:44:24.924 INFO kablam!    |
Nov 02 04:44:24.924 INFO kablam! 13 |         let string = "hello"; // string is valid from here forward
Nov 02 04:44:24.924 INFO kablam!    |             ^^^^^^ help: consider using `_string` instead
Nov 02 04:44:24.924 INFO kablam!    |
Nov 02 04:44:24.924 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 02 04:44:24.924 INFO kablam! 
Nov 02 04:44:24.924 INFO kablam! warning: unused variable: `s2`
Nov 02 04:44:24.924 INFO kablam!   --> src/main.rs:40:9
Nov 02 04:44:24.924 INFO kablam!    |
Nov 02 04:44:24.924 INFO kablam! 40 |     let s2 = s1;
Nov 02 04:44:24.924 INFO kablam!    |         ^^ help: consider using `_s2` instead
Nov 02 04:44:24.924 INFO kablam! 
Nov 02 04:44:24.924 INFO kablam! warning: unused variable: `s1`
Nov 02 04:44:24.924 INFO kablam!   --> src/main.rs:68:9
Nov 02 04:44:24.924 INFO kablam!    |
Nov 02 04:44:24.924 INFO kablam! 68 |     let s1 = gives_ownership();         // gives_ownership moves its return
Nov 02 04:44:24.924 INFO kablam!    |         ^^ help: consider using `_s1` instead
Nov 02 04:44:24.924 INFO kablam! 
Nov 02 04:44:24.924 INFO kablam! warning: unused variable: `r1`
Nov 02 04:44:24.924 INFO kablam!   --> src/main.rs:98:9
Nov 02 04:44:24.924 INFO kablam!    |
Nov 02 04:44:24.924 INFO kablam! 98 |     let r1 = &mut s2;
Nov 02 04:44:24.924 INFO kablam!    |         ^^ help: consider using `_r1` instead
Nov 02 04:44:24.924 INFO kablam! 
Nov 02 04:44:24.924 INFO kablam! warning: unused variable: `r3`
Nov 02 04:44:24.924 INFO kablam!    --> src/main.rs:107:13
Nov 02 04:44:24.924 INFO kablam!     |
Nov 02 04:44:24.924 INFO kablam! 107 |         let r3 = &mut s3;
Nov 02 04:44:24.924 INFO kablam!     |             ^^ help: consider using `_r3` instead
Nov 02 04:44:24.924 INFO kablam! 
Nov 02 04:44:24.924 INFO kablam! warning: unused variable: `r4`
Nov 02 04:44:24.924 INFO kablam!    --> src/main.rs:110:9
Nov 02 04:44:24.924 INFO kablam!     |
Nov 02 04:44:24.924 INFO kablam! 110 |     let r4 = &mut s3;
Nov 02 04:44:24.924 INFO kablam!     |         ^^ help: consider using `_r4` instead
Nov 02 04:44:24.924 INFO kablam! 
Nov 02 04:44:24.924 INFO kablam! warning: unused variable: `r1`
Nov 02 04:44:24.924 INFO kablam!    --> src/main.rs:113:9
Nov 02 04:44:24.924 INFO kablam!     |
Nov 02 04:44:24.924 INFO kablam! 113 |     let r1 = &s; // immutable ref
Nov 02 04:44:24.924 INFO kablam!     |         ^^ help: consider using `_r1` instead
Nov 02 04:44:24.924 INFO kablam! 
Nov 02 04:44:24.924 INFO kablam! warning: unused variable: `r2`
Nov 02 04:44:24.925 INFO kablam!    --> src/main.rs:114:9
Nov 02 04:44:24.925 INFO kablam!     |
Nov 02 04:44:24.925 INFO kablam! 114 |     let r2 = &s; // second because as many refs can read the same data safely
Nov 02 04:44:24.925 INFO kablam!     |         ^^ help: consider using `_r2` instead
Nov 02 04:44:24.925 INFO kablam! 
Nov 02 04:44:24.925 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.925 INFO kablam!    --> src/main.rs:140:9
Nov 02 04:44:24.925 INFO kablam!     |
Nov 02 04:44:24.925 INFO kablam! 140 |     let slice = &s[0..2];   // same
Nov 02 04:44:24.925 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.925 INFO kablam! 
Nov 02 04:44:24.925 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.925 INFO kablam!    --> src/main.rs:141:9
Nov 02 04:44:24.925 INFO kablam!     |
Nov 02 04:44:24.925 INFO kablam! 141 |     let slice = &s[..2];    // same
Nov 02 04:44:24.925 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.925 INFO kablam! 
Nov 02 04:44:24.925 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.925 INFO kablam!    --> src/main.rs:145:9
Nov 02 04:44:24.925 INFO kablam!     |
Nov 02 04:44:24.925 INFO kablam! 145 |     let slice = &s[2..len]; // same
Nov 02 04:44:24.925 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.925 INFO kablam! 
Nov 02 04:44:24.925 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.925 INFO kablam!    --> src/main.rs:146:9
Nov 02 04:44:24.925 INFO kablam!     |
Nov 02 04:44:24.925 INFO kablam! 146 |     let slice = &s[2..];    // same
Nov 02 04:44:24.925 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.925 INFO kablam! 
Nov 02 04:44:24.925 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.925 INFO kablam!    --> src/main.rs:148:9
Nov 02 04:44:24.925 INFO kablam!     |
Nov 02 04:44:24.925 INFO kablam! 148 |     let slice = &s[0..len]; // same
Nov 02 04:44:24.925 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.925 INFO kablam! 
Nov 02 04:44:24.925 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.925 INFO kablam!    --> src/main.rs:149:9
Nov 02 04:44:24.925 INFO kablam!     |
Nov 02 04:44:24.925 INFO kablam! 149 |     let slice = &s[..];     // same
Nov 02 04:44:24.925 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.925 INFO kablam! 
Nov 02 04:44:24.925 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.925 INFO kablam!    --> src/main.rs:166:9
Nov 02 04:44:24.925 INFO kablam!     |
Nov 02 04:44:24.925 INFO kablam! 166 |     let slice = &a[0..2];
Nov 02 04:44:24.925 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.925 INFO kablam! 
Nov 02 04:44:24.953 INFO kablam! warning: variable does not need to be mutable
Nov 02 04:44:24.953 INFO kablam!    --> src/main.rs:112:9
Nov 02 04:44:24.953 INFO kablam!     |
Nov 02 04:44:24.953 INFO kablam! 112 |     let mut s = String::from("hello s");
Nov 02 04:44:24.953 INFO kablam!     |         ----^
Nov 02 04:44:24.953 INFO kablam!     |         |
Nov 02 04:44:24.953 INFO kablam!     |         help: remove this `mut`
Nov 02 04:44:24.953 INFO kablam!     |
Nov 02 04:44:24.953 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 02 04:44:24.953 INFO kablam! 
Nov 02 04:44:25.000 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
Nov 02 04:44:25.008 INFO kablam! su: No module specific data is present
Nov 02 04:44:25.904 INFO running `"docker" "rm" "-f" "171181584ae3d063fcbe1130786bcf61fc37cce3bfc81b1291fe447324a7da73"`
Nov 02 04:44:26.184 INFO blam! 171181584ae3d063fcbe1130786bcf61fc37cce3bfc81b1291fe447324a7da73