Oct 26 19:04:51.044 INFO checking tperdue321/rust_ownership against try#19f01b935b91481fd445b16b533d2f87661bf12e for pr-55192-2 Oct 26 19:04:51.044 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-4/try#19f01b935b91481fd445b16b533d2f87661bf12e:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-55192-2/try#19f01b935b91481fd445b16b533d2f87661bf12e:/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 +19f01b935b91481fd445b16b533d2f87661bf12e-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"` Oct 26 19:04:51.508 INFO blam! f4260285070b79ce8286187518f18dca5c9e5bcdfefa61da7714f1fee4097143 Oct 26 19:04:51.512 INFO running `"docker" "start" "-a" "f4260285070b79ce8286187518f18dca5c9e5bcdfefa61da7714f1fee4097143"` Oct 26 19:04:53.167 INFO kablam! usermod: no changes Oct 26 19:04:53.219 INFO kablam! Checking ownership v0.1.0 (/source) Oct 26 19:04:53.454 INFO kablam! warning: unused variable: `string` Oct 26 19:04:53.455 INFO kablam! --> src/main.rs:13:13 Oct 26 19:04:53.455 INFO kablam! | Oct 26 19:04:53.455 INFO kablam! 13 | let string = "hello"; // string is valid from here forward Oct 26 19:04:53.456 INFO kablam! | ^^^^^^ help: consider using `_string` instead Oct 26 19:04:53.457 INFO kablam! | Oct 26 19:04:53.457 INFO kablam! = note: #[warn(unused_variables)] on by default Oct 26 19:04:53.458 INFO kablam! Oct 26 19:04:53.458 INFO kablam! warning: unused variable: `s2` Oct 26 19:04:53.459 INFO kablam! --> src/main.rs:40:9 Oct 26 19:04:53.459 INFO kablam! | Oct 26 19:04:53.460 INFO kablam! 40 | let s2 = s1; Oct 26 19:04:53.460 INFO kablam! | ^^ help: consider using `_s2` instead Oct 26 19:04:53.461 INFO kablam! Oct 26 19:04:53.461 INFO kablam! warning: unused variable: `s1` Oct 26 19:04:53.462 INFO kablam! --> src/main.rs:68:9 Oct 26 19:04:53.462 INFO kablam! | Oct 26 19:04:53.463 INFO kablam! 68 | let s1 = gives_ownership(); // gives_ownership moves its return Oct 26 19:04:53.463 INFO kablam! | ^^ help: consider using `_s1` instead Oct 26 19:04:53.464 INFO kablam! Oct 26 19:04:53.464 INFO kablam! warning: unused variable: `r1` Oct 26 19:04:53.465 INFO kablam! --> src/main.rs:98:9 Oct 26 19:04:53.465 INFO kablam! | Oct 26 19:04:53.466 INFO kablam! 98 | let r1 = &mut s2; Oct 26 19:04:53.466 INFO kablam! | ^^ help: consider using `_r1` instead Oct 26 19:04:53.467 INFO kablam! Oct 26 19:04:53.471 INFO kablam! warning: unused variable: `r3` Oct 26 19:04:53.471 INFO kablam! --> src/main.rs:107:13 Oct 26 19:04:53.471 INFO kablam! | Oct 26 19:04:53.471 INFO kablam! 107 | let r3 = &mut s3; Oct 26 19:04:53.471 INFO kablam! | ^^ help: consider using `_r3` instead Oct 26 19:04:53.471 INFO kablam! Oct 26 19:04:53.471 INFO kablam! warning: unused variable: `r4` Oct 26 19:04:53.471 INFO kablam! --> src/main.rs:110:9 Oct 26 19:04:53.471 INFO kablam! | Oct 26 19:04:53.471 INFO kablam! 110 | let r4 = &mut s3; Oct 26 19:04:53.471 INFO kablam! | ^^ help: consider using `_r4` instead Oct 26 19:04:53.471 INFO kablam! Oct 26 19:04:53.471 INFO kablam! warning: unused variable: `r1` Oct 26 19:04:53.471 INFO kablam! --> src/main.rs:113:9 Oct 26 19:04:53.471 INFO kablam! | Oct 26 19:04:53.471 INFO kablam! 113 | let r1 = &s; // immutable ref Oct 26 19:04:53.471 INFO kablam! | ^^ help: consider using `_r1` instead Oct 26 19:04:53.471 INFO kablam! Oct 26 19:04:53.471 INFO kablam! warning: unused variable: `r2` Oct 26 19:04:53.471 INFO kablam! --> src/main.rs:114:9 Oct 26 19:04:53.471 INFO kablam! | Oct 26 19:04:53.471 INFO kablam! 114 | let r2 = &s; // second because as many refs can read the same data safely Oct 26 19:04:53.471 INFO kablam! | ^^ help: consider using `_r2` instead Oct 26 19:04:53.471 INFO kablam! Oct 26 19:04:53.471 INFO kablam! warning: unused variable: `slice` Oct 26 19:04:53.471 INFO kablam! --> src/main.rs:140:9 Oct 26 19:04:53.471 INFO kablam! | Oct 26 19:04:53.471 INFO kablam! 140 | let slice = &s[0..2]; // same Oct 26 19:04:53.471 INFO kablam! | ^^^^^ help: consider using `_slice` instead Oct 26 19:04:53.471 INFO kablam! Oct 26 19:04:53.471 INFO kablam! warning: unused variable: `slice` Oct 26 19:04:53.471 INFO kablam! --> src/main.rs:141:9 Oct 26 19:04:53.471 INFO kablam! | Oct 26 19:04:53.471 INFO kablam! 141 | let slice = &s[..2]; // same Oct 26 19:04:53.471 INFO kablam! | ^^^^^ help: consider using `_slice` instead Oct 26 19:04:53.471 INFO kablam! Oct 26 19:04:53.471 INFO kablam! warning: unused variable: `slice` Oct 26 19:04:53.471 INFO kablam! --> src/main.rs:145:9 Oct 26 19:04:53.471 INFO kablam! | Oct 26 19:04:53.471 INFO kablam! 145 | let slice = &s[2..len]; // same Oct 26 19:04:53.471 INFO kablam! | ^^^^^ help: consider using `_slice` instead Oct 26 19:04:53.471 INFO kablam! Oct 26 19:04:53.471 INFO kablam! warning: unused variable: `slice` Oct 26 19:04:53.471 INFO kablam! --> src/main.rs:146:9 Oct 26 19:04:53.471 INFO kablam! | Oct 26 19:04:53.471 INFO kablam! 146 | let slice = &s[2..]; // same Oct 26 19:04:53.471 INFO kablam! | ^^^^^ help: consider using `_slice` instead Oct 26 19:04:53.471 INFO kablam! Oct 26 19:04:53.471 INFO kablam! warning: unused variable: `slice` Oct 26 19:04:53.471 INFO kablam! --> src/main.rs:148:9 Oct 26 19:04:53.471 INFO kablam! | Oct 26 19:04:53.471 INFO kablam! 148 | let slice = &s[0..len]; // same Oct 26 19:04:53.471 INFO kablam! | ^^^^^ help: consider using `_slice` instead Oct 26 19:04:53.471 INFO kablam! Oct 26 19:04:53.471 INFO kablam! warning: unused variable: `slice` Oct 26 19:04:53.471 INFO kablam! --> src/main.rs:149:9 Oct 26 19:04:53.471 INFO kablam! | Oct 26 19:04:53.471 INFO kablam! 149 | let slice = &s[..]; // same Oct 26 19:04:53.471 INFO kablam! | ^^^^^ help: consider using `_slice` instead Oct 26 19:04:53.471 INFO kablam! Oct 26 19:04:53.471 INFO kablam! warning: unused variable: `slice` Oct 26 19:04:53.471 INFO kablam! --> src/main.rs:166:9 Oct 26 19:04:53.471 INFO kablam! | Oct 26 19:04:53.471 INFO kablam! 166 | let slice = &a[0..2]; Oct 26 19:04:53.471 INFO kablam! | ^^^^^ help: consider using `_slice` instead Oct 26 19:04:53.471 INFO kablam! Oct 26 19:04:53.487 INFO kablam! warning: variable does not need to be mutable Oct 26 19:04:53.487 INFO kablam! --> src/main.rs:112:9 Oct 26 19:04:53.487 INFO kablam! | Oct 26 19:04:53.487 INFO kablam! 112 | let mut s = String::from("hello s"); Oct 26 19:04:53.487 INFO kablam! | ----^ Oct 26 19:04:53.487 INFO kablam! | | Oct 26 19:04:53.487 INFO kablam! | help: remove this `mut` Oct 26 19:04:53.487 INFO kablam! | Oct 26 19:04:53.487 INFO kablam! = note: #[warn(unused_mut)] on by default Oct 26 19:04:53.487 INFO kablam! Oct 26 19:04:53.679 INFO kablam! warning: unused variable: `string` Oct 26 19:04:53.679 INFO kablam! --> src/main.rs:13:13 Oct 26 19:04:53.679 INFO kablam! | Oct 26 19:04:53.679 INFO kablam! 13 | let string = "hello"; // string is valid from here forward Oct 26 19:04:53.679 INFO kablam! | ^^^^^^ help: consider using `_string` instead Oct 26 19:04:53.679 INFO kablam! | Oct 26 19:04:53.679 INFO kablam! = note: #[warn(unused_variables)] on by default Oct 26 19:04:53.679 INFO kablam! Oct 26 19:04:53.679 INFO kablam! warning: unused variable: `s2` Oct 26 19:04:53.679 INFO kablam! --> src/main.rs:40:9 Oct 26 19:04:53.679 INFO kablam! | Oct 26 19:04:53.679 INFO kablam! 40 | let s2 = s1; Oct 26 19:04:53.679 INFO kablam! | ^^ help: consider using `_s2` instead Oct 26 19:04:53.679 INFO kablam! Oct 26 19:04:53.679 INFO kablam! warning: unused variable: `s1` Oct 26 19:04:53.679 INFO kablam! --> src/main.rs:68:9 Oct 26 19:04:53.679 INFO kablam! | Oct 26 19:04:53.679 INFO kablam! 68 | let s1 = gives_ownership(); // gives_ownership moves its return Oct 26 19:04:53.679 INFO kablam! | ^^ help: consider using `_s1` instead Oct 26 19:04:53.679 INFO kablam! Oct 26 19:04:53.679 INFO kablam! warning: unused variable: `r1` Oct 26 19:04:53.679 INFO kablam! --> src/main.rs:98:9 Oct 26 19:04:53.679 INFO kablam! | Oct 26 19:04:53.679 INFO kablam! 98 | let r1 = &mut s2; Oct 26 19:04:53.679 INFO kablam! | ^^ help: consider using `_r1` instead Oct 26 19:04:53.679 INFO kablam! Oct 26 19:04:53.679 INFO kablam! warning: unused variable: `r3` Oct 26 19:04:53.679 INFO kablam! --> src/main.rs:107:13 Oct 26 19:04:53.679 INFO kablam! | Oct 26 19:04:53.679 INFO kablam! 107 | let r3 = &mut s3; Oct 26 19:04:53.679 INFO kablam! | ^^ help: consider using `_r3` instead Oct 26 19:04:53.679 INFO kablam! Oct 26 19:04:53.679 INFO kablam! warning: unused variable: `r4` Oct 26 19:04:53.679 INFO kablam! --> src/main.rs:110:9 Oct 26 19:04:53.679 INFO kablam! | Oct 26 19:04:53.679 INFO kablam! 110 | let r4 = &mut s3; Oct 26 19:04:53.679 INFO kablam! | ^^ help: consider using `_r4` instead Oct 26 19:04:53.679 INFO kablam! Oct 26 19:04:53.679 INFO kablam! warning: unused variable: `r1` Oct 26 19:04:53.679 INFO kablam! --> src/main.rs:113:9 Oct 26 19:04:53.679 INFO kablam! | Oct 26 19:04:53.680 INFO kablam! 113 | let r1 = &s; // immutable ref Oct 26 19:04:53.680 INFO kablam! | ^^ help: consider using `_r1` instead Oct 26 19:04:53.680 INFO kablam! Oct 26 19:04:53.680 INFO kablam! warning: unused variable: `r2` Oct 26 19:04:53.680 INFO kablam! --> src/main.rs:114:9 Oct 26 19:04:53.680 INFO kablam! | Oct 26 19:04:53.680 INFO kablam! 114 | let r2 = &s; // second because as many refs can read the same data safely Oct 26 19:04:53.680 INFO kablam! | ^^ help: consider using `_r2` instead Oct 26 19:04:53.680 INFO kablam! Oct 26 19:04:53.680 INFO kablam! warning: unused variable: `slice` Oct 26 19:04:53.680 INFO kablam! --> src/main.rs:140:9 Oct 26 19:04:53.680 INFO kablam! | Oct 26 19:04:53.680 INFO kablam! 140 | let slice = &s[0..2]; // same Oct 26 19:04:53.680 INFO kablam! | ^^^^^ help: consider using `_slice` instead Oct 26 19:04:53.680 INFO kablam! Oct 26 19:04:53.680 INFO kablam! warning: unused variable: `slice` Oct 26 19:04:53.680 INFO kablam! --> src/main.rs:141:9 Oct 26 19:04:53.680 INFO kablam! | Oct 26 19:04:53.680 INFO kablam! 141 | let slice = &s[..2]; // same Oct 26 19:04:53.680 INFO kablam! | ^^^^^ help: consider using `_slice` instead Oct 26 19:04:53.680 INFO kablam! Oct 26 19:04:53.680 INFO kablam! warning: unused variable: `slice` Oct 26 19:04:53.680 INFO kablam! --> src/main.rs:145:9 Oct 26 19:04:53.680 INFO kablam! | Oct 26 19:04:53.680 INFO kablam! 145 | let slice = &s[2..len]; // same Oct 26 19:04:53.680 INFO kablam! | ^^^^^ help: consider using `_slice` instead Oct 26 19:04:53.680 INFO kablam! Oct 26 19:04:53.680 INFO kablam! warning: unused variable: `slice` Oct 26 19:04:53.680 INFO kablam! --> src/main.rs:146:9 Oct 26 19:04:53.680 INFO kablam! | Oct 26 19:04:53.680 INFO kablam! 146 | let slice = &s[2..]; // same Oct 26 19:04:53.680 INFO kablam! | ^^^^^ help: consider using `_slice` instead Oct 26 19:04:53.680 INFO kablam! Oct 26 19:04:53.680 INFO kablam! warning: unused variable: `slice` Oct 26 19:04:53.680 INFO kablam! --> src/main.rs:148:9 Oct 26 19:04:53.680 INFO kablam! | Oct 26 19:04:53.680 INFO kablam! 148 | let slice = &s[0..len]; // same Oct 26 19:04:53.680 INFO kablam! | ^^^^^ help: consider using `_slice` instead Oct 26 19:04:53.680 INFO kablam! Oct 26 19:04:53.680 INFO kablam! warning: unused variable: `slice` Oct 26 19:04:53.680 INFO kablam! --> src/main.rs:149:9 Oct 26 19:04:53.680 INFO kablam! | Oct 26 19:04:53.680 INFO kablam! 149 | let slice = &s[..]; // same Oct 26 19:04:53.680 INFO kablam! | ^^^^^ help: consider using `_slice` instead Oct 26 19:04:53.680 INFO kablam! Oct 26 19:04:53.680 INFO kablam! warning: unused variable: `slice` Oct 26 19:04:53.680 INFO kablam! --> src/main.rs:166:9 Oct 26 19:04:53.680 INFO kablam! | Oct 26 19:04:53.680 INFO kablam! 166 | let slice = &a[0..2]; Oct 26 19:04:53.680 INFO kablam! | ^^^^^ help: consider using `_slice` instead Oct 26 19:04:53.680 INFO kablam! Oct 26 19:04:53.693 INFO kablam! warning: variable does not need to be mutable Oct 26 19:04:53.693 INFO kablam! --> src/main.rs:112:9 Oct 26 19:04:53.693 INFO kablam! | Oct 26 19:04:53.694 INFO kablam! 112 | let mut s = String::from("hello s"); Oct 26 19:04:53.694 INFO kablam! | ----^ Oct 26 19:04:53.694 INFO kablam! | | Oct 26 19:04:53.694 INFO kablam! | help: remove this `mut` Oct 26 19:04:53.694 INFO kablam! | Oct 26 19:04:53.694 INFO kablam! = note: #[warn(unused_mut)] on by default Oct 26 19:04:53.694 INFO kablam! Oct 26 19:04:53.743 INFO kablam! Finished dev [unoptimized + debuginfo] target(s) in 0.56s Oct 26 19:04:53.748 INFO kablam! su: No module specific data is present Oct 26 19:04:54.512 INFO running `"docker" "rm" "-f" "f4260285070b79ce8286187518f18dca5c9e5bcdfefa61da7714f1fee4097143"` Oct 26 19:04:54.853 INFO blam! f4260285070b79ce8286187518f18dca5c9e5bcdfefa61da7714f1fee4097143