Nov 02 04:44:22.367 INFO checking tperdue321/rust_ownership against master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862 for pr-55517
Nov 02 04:44:22.368 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-2/master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55517/master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862:/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 +f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862-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 04:44:22.765 INFO blam! ad5ced795b2ec3206b3bcc771cd89103bc8650a8ae3365e23c1744db8a36891e
Nov 02 04:44:22.768 INFO running `"docker" "start" "-a" "ad5ced795b2ec3206b3bcc771cd89103bc8650a8ae3365e23c1744db8a36891e"`
Nov 02 04:44:24.323 INFO kablam! usermod: no changes
Nov 02 04:44:24.432 INFO kablam!     Checking ownership v0.1.0 (/source)
Nov 02 04:44:24.744 INFO kablam! warning: unused variable: `string`
Nov 02 04:44:24.745 INFO kablam!   --> src/main.rs:13:13
Nov 02 04:44:24.745 INFO kablam!    |
Nov 02 04:44:24.746 INFO kablam! 13 |         let string = "hello"; // string is valid from here forward
Nov 02 04:44:24.746 INFO kablam!    |             ^^^^^^ help: consider using `_string` instead
Nov 02 04:44:24.746 INFO kablam!    |
Nov 02 04:44:24.746 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 02 04:44:24.747 INFO kablam! 
Nov 02 04:44:24.747 INFO kablam! warning: unused variable: `s2`
Nov 02 04:44:24.747 INFO kablam!   --> src/main.rs:40:9
Nov 02 04:44:24.748 INFO kablam!    |
Nov 02 04:44:24.748 INFO kablam! 40 |     let s2 = s1;
Nov 02 04:44:24.748 INFO kablam!    |         ^^ help: consider using `_s2` instead
Nov 02 04:44:24.749 INFO kablam! 
Nov 02 04:44:24.749 INFO kablam! warning: unused variable: `s1`
Nov 02 04:44:24.749 INFO kablam!   --> src/main.rs:68:9
Nov 02 04:44:24.750 INFO kablam!    |
Nov 02 04:44:24.750 INFO kablam! 68 |     let s1 = gives_ownership();         // gives_ownership moves its return
Nov 02 04:44:24.750 INFO kablam!    |         ^^ help: consider using `_s1` instead
Nov 02 04:44:24.750 INFO kablam! 
Nov 02 04:44:24.751 INFO kablam! warning: unused variable: `r1`
Nov 02 04:44:24.751 INFO kablam!   --> src/main.rs:98:9
Nov 02 04:44:24.751 INFO kablam!    |
Nov 02 04:44:24.752 INFO kablam! 98 |     let r1 = &mut s2;
Nov 02 04:44:24.752 INFO kablam!    |         ^^ help: consider using `_r1` instead
Nov 02 04:44:24.752 INFO kablam! 
Nov 02 04:44:24.753 INFO kablam! warning: unused variable: `r3`
Nov 02 04:44:24.753 INFO kablam!    --> src/main.rs:107:13
Nov 02 04:44:24.753 INFO kablam!     |
Nov 02 04:44:24.753 INFO kablam! 107 |         let r3 = &mut s3;
Nov 02 04:44:24.754 INFO kablam!     |             ^^ help: consider using `_r3` instead
Nov 02 04:44:24.754 INFO kablam! 
Nov 02 04:44:24.754 INFO kablam! warning: unused variable: `r4`
Nov 02 04:44:24.755 INFO kablam!    --> src/main.rs:110:9
Nov 02 04:44:24.755 INFO kablam!     |
Nov 02 04:44:24.755 INFO kablam! 110 |     let r4 = &mut s3;
Nov 02 04:44:24.755 INFO kablam!     |         ^^ help: consider using `_r4` instead
Nov 02 04:44:24.756 INFO kablam! 
Nov 02 04:44:24.760 INFO kablam! warning: unused variable: `r1`
Nov 02 04:44:24.760 INFO kablam!    --> src/main.rs:113:9
Nov 02 04:44:24.761 INFO kablam!     |
Nov 02 04:44:24.761 INFO kablam! 113 |     let r1 = &s; // immutable ref
Nov 02 04:44:24.761 INFO kablam!     |         ^^ help: consider using `_r1` instead
Nov 02 04:44:24.762 INFO kablam! 
Nov 02 04:44:24.762 INFO kablam! warning: unused variable: `r2`
Nov 02 04:44:24.762 INFO kablam!    --> src/main.rs:114:9
Nov 02 04:44:24.763 INFO kablam!     |
Nov 02 04:44:24.763 INFO kablam! 114 |     let r2 = &s; // second because as many refs can read the same data safely
Nov 02 04:44:24.763 INFO kablam!     |         ^^ help: consider using `_r2` instead
Nov 02 04:44:24.763 INFO kablam! 
Nov 02 04:44:24.764 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.764 INFO kablam!    --> src/main.rs:140:9
Nov 02 04:44:24.764 INFO kablam!     |
Nov 02 04:44:24.765 INFO kablam! 140 |     let slice = &s[0..2];   // same
Nov 02 04:44:24.765 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.765 INFO kablam! 
Nov 02 04:44:24.766 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.766 INFO kablam!    --> src/main.rs:141:9
Nov 02 04:44:24.766 INFO kablam!     |
Nov 02 04:44:24.766 INFO kablam! 141 |     let slice = &s[..2];    // same
Nov 02 04:44:24.767 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.767 INFO kablam! 
Nov 02 04:44:24.767 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.768 INFO kablam!    --> src/main.rs:145:9
Nov 02 04:44:24.768 INFO kablam!     |
Nov 02 04:44:24.768 INFO kablam! 145 |     let slice = &s[2..len]; // same
Nov 02 04:44:24.768 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.769 INFO kablam! 
Nov 02 04:44:24.769 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.769 INFO kablam!    --> src/main.rs:146:9
Nov 02 04:44:24.770 INFO kablam!     |
Nov 02 04:44:24.770 INFO kablam! 146 |     let slice = &s[2..];    // same
Nov 02 04:44:24.770 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.771 INFO kablam! 
Nov 02 04:44:24.771 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.771 INFO kablam!    --> src/main.rs:148:9
Nov 02 04:44:24.771 INFO kablam!     |
Nov 02 04:44:24.772 INFO kablam! 148 |     let slice = &s[0..len]; // same
Nov 02 04:44:24.776 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.776 INFO kablam! 
Nov 02 04:44:24.777 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.777 INFO kablam!    --> src/main.rs:149:9
Nov 02 04:44:24.777 INFO kablam!     |
Nov 02 04:44:24.778 INFO kablam! 149 |     let slice = &s[..];     // same
Nov 02 04:44:24.778 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.778 INFO kablam! 
Nov 02 04:44:24.778 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.779 INFO kablam!    --> src/main.rs:166:9
Nov 02 04:44:24.779 INFO kablam!     |
Nov 02 04:44:24.779 INFO kablam! 166 |     let slice = &a[0..2];
Nov 02 04:44:24.779 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.780 INFO kablam! 
Nov 02 04:44:24.780 INFO kablam! warning: variable does not need to be mutable
Nov 02 04:44:24.780 INFO kablam!    --> src/main.rs:112:9
Nov 02 04:44:24.781 INFO kablam!     |
Nov 02 04:44:24.781 INFO kablam! 112 |     let mut s = String::from("hello s");
Nov 02 04:44:24.781 INFO kablam!     |         ----^
Nov 02 04:44:24.781 INFO kablam!     |         |
Nov 02 04:44:24.782 INFO kablam!     |         help: remove this `mut`
Nov 02 04:44:24.782 INFO kablam!     |
Nov 02 04:44:24.782 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 02 04:44:24.783 INFO kablam! 
Nov 02 04:44:24.951 INFO kablam! warning: unused variable: `string`
Nov 02 04:44:24.951 INFO kablam!   --> src/main.rs:13:13
Nov 02 04:44:24.951 INFO kablam!    |
Nov 02 04:44:24.951 INFO kablam! 13 |         let string = "hello"; // string is valid from here forward
Nov 02 04:44:24.951 INFO kablam!    |             ^^^^^^ help: consider using `_string` instead
Nov 02 04:44:24.951 INFO kablam!    |
Nov 02 04:44:24.951 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 02 04:44:24.951 INFO kablam! 
Nov 02 04:44:24.951 INFO kablam! warning: unused variable: `s2`
Nov 02 04:44:24.951 INFO kablam!   --> src/main.rs:40:9
Nov 02 04:44:24.951 INFO kablam!    |
Nov 02 04:44:24.951 INFO kablam! 40 |     let s2 = s1;
Nov 02 04:44:24.951 INFO kablam!    |         ^^ help: consider using `_s2` instead
Nov 02 04:44:24.951 INFO kablam! 
Nov 02 04:44:24.953 INFO kablam! warning: unused variable: `s1`
Nov 02 04:44:24.953 INFO kablam!   --> src/main.rs:68:9
Nov 02 04:44:24.953 INFO kablam!    |
Nov 02 04:44:24.953 INFO kablam! 68 |     let s1 = gives_ownership();         // gives_ownership moves its return
Nov 02 04:44:24.953 INFO kablam!    |         ^^ help: consider using `_s1` instead
Nov 02 04:44:24.953 INFO kablam! 
Nov 02 04:44:24.953 INFO kablam! warning: unused variable: `r1`
Nov 02 04:44:24.953 INFO kablam!   --> src/main.rs:98:9
Nov 02 04:44:24.953 INFO kablam!    |
Nov 02 04:44:24.953 INFO kablam! 98 |     let r1 = &mut s2;
Nov 02 04:44:24.953 INFO kablam!    |         ^^ help: consider using `_r1` instead
Nov 02 04:44:24.953 INFO kablam! 
Nov 02 04:44:24.953 INFO kablam! warning: unused variable: `r3`
Nov 02 04:44:24.953 INFO kablam!    --> src/main.rs:107:13
Nov 02 04:44:24.953 INFO kablam!     |
Nov 02 04:44:24.953 INFO kablam! 107 |         let r3 = &mut s3;
Nov 02 04:44:24.953 INFO kablam!     |             ^^ help: consider using `_r3` instead
Nov 02 04:44:24.953 INFO kablam! 
Nov 02 04:44:24.953 INFO kablam! warning: unused variable: `r4`
Nov 02 04:44:24.953 INFO kablam!    --> src/main.rs:110:9
Nov 02 04:44:24.953 INFO kablam!     |
Nov 02 04:44:24.953 INFO kablam! 110 |     let r4 = &mut s3;
Nov 02 04:44:24.953 INFO kablam!     |         ^^ help: consider using `_r4` instead
Nov 02 04:44:24.953 INFO kablam! 
Nov 02 04:44:24.953 INFO kablam! warning: unused variable: `r1`
Nov 02 04:44:24.953 INFO kablam!    --> src/main.rs:113:9
Nov 02 04:44:24.953 INFO kablam!     |
Nov 02 04:44:24.953 INFO kablam! 113 |     let r1 = &s; // immutable ref
Nov 02 04:44:24.953 INFO kablam!     |         ^^ help: consider using `_r1` instead
Nov 02 04:44:24.953 INFO kablam! 
Nov 02 04:44:24.954 INFO kablam! warning: unused variable: `r2`
Nov 02 04:44:24.954 INFO kablam!    --> src/main.rs:114:9
Nov 02 04:44:24.954 INFO kablam!     |
Nov 02 04:44:24.954 INFO kablam! 114 |     let r2 = &s; // second because as many refs can read the same data safely
Nov 02 04:44:24.954 INFO kablam!     |         ^^ help: consider using `_r2` instead
Nov 02 04:44:24.954 INFO kablam! 
Nov 02 04:44:24.954 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.954 INFO kablam!    --> src/main.rs:140:9
Nov 02 04:44:24.954 INFO kablam!     |
Nov 02 04:44:24.954 INFO kablam! 140 |     let slice = &s[0..2];   // same
Nov 02 04:44:24.954 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.954 INFO kablam! 
Nov 02 04:44:24.954 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.954 INFO kablam!    --> src/main.rs:141:9
Nov 02 04:44:24.954 INFO kablam!     |
Nov 02 04:44:24.954 INFO kablam! 141 |     let slice = &s[..2];    // same
Nov 02 04:44:24.954 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.954 INFO kablam! 
Nov 02 04:44:24.954 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.954 INFO kablam!    --> src/main.rs:145:9
Nov 02 04:44:24.954 INFO kablam!     |
Nov 02 04:44:24.954 INFO kablam! 145 |     let slice = &s[2..len]; // same
Nov 02 04:44:24.954 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.954 INFO kablam! 
Nov 02 04:44:24.954 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.954 INFO kablam!    --> src/main.rs:146:9
Nov 02 04:44:24.954 INFO kablam!     |
Nov 02 04:44:24.954 INFO kablam! 146 |     let slice = &s[2..];    // same
Nov 02 04:44:24.954 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.954 INFO kablam! 
Nov 02 04:44:24.954 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.954 INFO kablam!    --> src/main.rs:148:9
Nov 02 04:44:24.954 INFO kablam!     |
Nov 02 04:44:24.954 INFO kablam! 148 |     let slice = &s[0..len]; // same
Nov 02 04:44:24.954 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.954 INFO kablam! 
Nov 02 04:44:24.954 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.954 INFO kablam!    --> src/main.rs:149:9
Nov 02 04:44:24.954 INFO kablam!     |
Nov 02 04:44:24.954 INFO kablam! 149 |     let slice = &s[..];     // same
Nov 02 04:44:24.954 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.954 INFO kablam! 
Nov 02 04:44:24.955 INFO kablam! warning: unused variable: `slice`
Nov 02 04:44:24.955 INFO kablam!    --> src/main.rs:166:9
Nov 02 04:44:24.955 INFO kablam!     |
Nov 02 04:44:24.955 INFO kablam! 166 |     let slice = &a[0..2];
Nov 02 04:44:24.955 INFO kablam!     |         ^^^^^ help: consider using `_slice` instead
Nov 02 04:44:24.955 INFO kablam! 
Nov 02 04:44:24.992 INFO kablam! warning: variable does not need to be mutable
Nov 02 04:44:24.992 INFO kablam!    --> src/main.rs:112:9
Nov 02 04:44:24.992 INFO kablam!     |
Nov 02 04:44:24.992 INFO kablam! 112 |     let mut s = String::from("hello s");
Nov 02 04:44:24.992 INFO kablam!     |         ----^
Nov 02 04:44:24.992 INFO kablam!     |         |
Nov 02 04:44:24.992 INFO kablam!     |         help: remove this `mut`
Nov 02 04:44:24.992 INFO kablam!     |
Nov 02 04:44:24.992 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 02 04:44:24.992 INFO kablam! 
Nov 02 04:44:25.032 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
Nov 02 04:44:25.035 INFO kablam! su: No module specific data is present
Nov 02 04:44:25.842 INFO running `"docker" "rm" "-f" "ad5ced795b2ec3206b3bcc771cd89103bc8650a8ae3365e23c1744db8a36891e"`
Nov 02 04:44:26.174 INFO blam! ad5ced795b2ec3206b3bcc771cd89103bc8650a8ae3365e23c1744db8a36891e