Nov 29 16:11:05.593 INFO checking tperdue321/rust_basics against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 16:11:05.593 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-4/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 29 16:11:06.012 INFO [stdout] c7372e228ded21edcec18b2b21fecf3947c1052983bbe9d5f66da7545b9ca982
Nov 29 16:11:06.014 INFO running `"docker" "start" "-a" "c7372e228ded21edcec18b2b21fecf3947c1052983bbe9d5f66da7545b9ca982"`
Nov 29 16:11:07.256 INFO [stderr] usermod: no changes
Nov 29 16:11:07.324 INFO [stderr]     Checking basics v0.1.0 (/source)
Nov 29 16:11:07.608 INFO [stderr] warning: unused variable: `a`
Nov 29 16:11:07.608 INFO [stderr]  --> src/main.rs:9:9
Nov 29 16:11:07.608 INFO [stderr]   |
Nov 29 16:11:07.608 INFO [stderr] 9 |     let a: i32 = 1;
Nov 29 16:11:07.608 INFO [stderr]   |         ^ help: consider using `_a` instead
Nov 29 16:11:07.608 INFO [stderr]   |
Nov 29 16:11:07.608 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 29 16:11:07.608 INFO [stderr] 
Nov 29 16:11:07.608 INFO [stderr] warning: variable `b` is assigned to, but never used
Nov 29 16:11:07.608 INFO [stderr]   --> src/main.rs:14:13
Nov 29 16:11:07.608 INFO [stderr]    |
Nov 29 16:11:07.608 INFO [stderr] 14 |     let mut b: i32 = 15;
Nov 29 16:11:07.608 INFO [stderr]    |             ^
Nov 29 16:11:07.608 INFO [stderr]    |
Nov 29 16:11:07.608 INFO [stderr]    = note: consider using `_b` instead
Nov 29 16:11:07.608 INFO [stderr] 
Nov 29 16:11:07.608 INFO [stderr] warning: value assigned to `b` is never read
Nov 29 16:11:07.608 INFO [stderr]   --> src/main.rs:15:5
Nov 29 16:11:07.608 INFO [stderr]    |
Nov 29 16:11:07.608 INFO [stderr] 15 |     b = 25;
Nov 29 16:11:07.608 INFO [stderr]    |     ^
Nov 29 16:11:07.608 INFO [stderr]    |
Nov 29 16:11:07.608 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 29 16:11:07.608 INFO [stderr] 
Nov 29 16:11:07.608 INFO [stderr] warning: unused variable: `x`
Nov 29 16:11:07.608 INFO [stderr]   --> src/main.rs:17:9
Nov 29 16:11:07.608 INFO [stderr]    |
Nov 29 16:11:07.608 INFO [stderr] 17 |     let x: i32; // bindings need to be given a starting val. this is bad
Nov 29 16:11:07.608 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 29 16:11:07.608 INFO [stderr] 
Nov 29 16:11:07.608 INFO [stderr] warning: value assigned to `x` is never read
Nov 29 16:11:07.608 INFO [stderr]   --> src/main.rs:38:13
Nov 29 16:11:07.608 INFO [stderr]    |
Nov 29 16:11:07.608 INFO [stderr] 38 |     let mut x: i32 = 1;
Nov 29 16:11:07.608 INFO [stderr]    |             ^
Nov 29 16:11:07.608 INFO [stderr] 
Nov 29 16:11:07.608 INFO [stderr] warning: unused variable: `y`
Nov 29 16:11:07.608 INFO [stderr]   --> src/main.rs:42:9
Nov 29 16:11:07.608 INFO [stderr]    |
Nov 29 16:11:07.608 INFO [stderr] 42 |     let y = 4;
Nov 29 16:11:07.608 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 29 16:11:07.608 INFO [stderr] 
Nov 29 16:11:07.608 INFO [stderr] warning: unused variable: `y`
Nov 29 16:11:07.608 INFO [stderr]   --> src/main.rs:45:9
Nov 29 16:11:07.608 INFO [stderr]    |
Nov 29 16:11:07.608 INFO [stderr] 45 |     let y = "I can also be bound to text!"; // `y` is now of a different type.
Nov 29 16:11:07.608 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 29 16:11:07.608 INFO [stderr] 
Nov 29 16:11:07.608 INFO [stderr] warning: unused variable: `x`
Nov 29 16:11:07.608 INFO [stderr]   --> src/main.rs:60:9
Nov 29 16:11:07.608 INFO [stderr]    |
Nov 29 16:11:07.608 INFO [stderr] 60 |     let x = return_int_plus_1(1);
Nov 29 16:11:07.608 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 29 16:11:07.608 INFO [stderr] 
Nov 29 16:11:07.608 INFO [stderr] warning: function is never used: `diverges`
Nov 29 16:11:07.608 INFO [stderr]   --> src/main.rs:93:1
Nov 29 16:11:07.608 INFO [stderr]    |
Nov 29 16:11:07.608 INFO [stderr] 93 | fn diverges() -> ! {
Nov 29 16:11:07.608 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Nov 29 16:11:07.608 INFO [stderr]    |
Nov 29 16:11:07.608 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 16:11:07.608 INFO [stderr] 
Nov 29 16:11:07.616 INFO [stderr] warning: unused variable: `a`
Nov 29 16:11:07.616 INFO [stderr]  --> src/main.rs:9:9
Nov 29 16:11:07.616 INFO [stderr]   |
Nov 29 16:11:07.616 INFO [stderr] 9 |     let a: i32 = 1;
Nov 29 16:11:07.616 INFO [stderr]   |         ^ help: consider using `_a` instead
Nov 29 16:11:07.616 INFO [stderr]   |
Nov 29 16:11:07.616 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 29 16:11:07.616 INFO [stderr] 
Nov 29 16:11:07.616 INFO [stderr] warning: variable `b` is assigned to, but never used
Nov 29 16:11:07.616 INFO [stderr]   --> src/main.rs:14:13
Nov 29 16:11:07.616 INFO [stderr]    |
Nov 29 16:11:07.616 INFO [stderr] 14 |     let mut b: i32 = 15;
Nov 29 16:11:07.616 INFO [stderr]    |             ^
Nov 29 16:11:07.616 INFO [stderr]    |
Nov 29 16:11:07.616 INFO [stderr]    = note: consider using `_b` instead
Nov 29 16:11:07.616 INFO [stderr] 
Nov 29 16:11:07.616 INFO [stderr] warning: value assigned to `b` is never read
Nov 29 16:11:07.616 INFO [stderr]   --> src/main.rs:15:5
Nov 29 16:11:07.616 INFO [stderr]    |
Nov 29 16:11:07.616 INFO [stderr] 15 |     b = 25;
Nov 29 16:11:07.616 INFO [stderr]    |     ^
Nov 29 16:11:07.616 INFO [stderr]    |
Nov 29 16:11:07.616 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 29 16:11:07.616 INFO [stderr] 
Nov 29 16:11:07.616 INFO [stderr] warning: unused variable: `x`
Nov 29 16:11:07.616 INFO [stderr]   --> src/main.rs:17:9
Nov 29 16:11:07.616 INFO [stderr]    |
Nov 29 16:11:07.616 INFO [stderr] 17 |     let x: i32; // bindings need to be given a starting val. this is bad
Nov 29 16:11:07.616 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 29 16:11:07.616 INFO [stderr] 
Nov 29 16:11:07.616 INFO [stderr] warning: value assigned to `x` is never read
Nov 29 16:11:07.616 INFO [stderr]   --> src/main.rs:38:13
Nov 29 16:11:07.616 INFO [stderr]    |
Nov 29 16:11:07.616 INFO [stderr] 38 |     let mut x: i32 = 1;
Nov 29 16:11:07.616 INFO [stderr]    |             ^
Nov 29 16:11:07.616 INFO [stderr] 
Nov 29 16:11:07.616 INFO [stderr] warning: unused variable: `y`
Nov 29 16:11:07.616 INFO [stderr]   --> src/main.rs:42:9
Nov 29 16:11:07.616 INFO [stderr]    |
Nov 29 16:11:07.616 INFO [stderr] 42 |     let y = 4;
Nov 29 16:11:07.616 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 29 16:11:07.616 INFO [stderr] 
Nov 29 16:11:07.616 INFO [stderr] warning: unused variable: `y`
Nov 29 16:11:07.616 INFO [stderr]   --> src/main.rs:45:9
Nov 29 16:11:07.616 INFO [stderr]    |
Nov 29 16:11:07.616 INFO [stderr] 45 |     let y = "I can also be bound to text!"; // `y` is now of a different type.
Nov 29 16:11:07.616 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 29 16:11:07.616 INFO [stderr] 
Nov 29 16:11:07.616 INFO [stderr] warning: unused variable: `x`
Nov 29 16:11:07.616 INFO [stderr]   --> src/main.rs:60:9
Nov 29 16:11:07.616 INFO [stderr]    |
Nov 29 16:11:07.616 INFO [stderr] 60 |     let x = return_int_plus_1(1);
Nov 29 16:11:07.616 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 29 16:11:07.616 INFO [stderr] 
Nov 29 16:11:07.628 INFO [stderr] warning: function is never used: `diverges`
Nov 29 16:11:07.628 INFO [stderr]   --> src/main.rs:93:1
Nov 29 16:11:07.628 INFO [stderr]    |
Nov 29 16:11:07.628 INFO [stderr] 93 | fn diverges() -> ! {
Nov 29 16:11:07.628 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Nov 29 16:11:07.628 INFO [stderr]    |
Nov 29 16:11:07.628 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 16:11:07.628 INFO [stderr] 
Nov 29 16:11:07.660 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
Nov 29 16:11:07.660 INFO [stderr] su: No module specific data is present
Nov 29 16:11:08.258 INFO running `"docker" "inspect" "c7372e228ded21edcec18b2b21fecf3947c1052983bbe9d5f66da7545b9ca982"`
Nov 29 16:11:08.376 INFO running `"docker" "rm" "-f" "c7372e228ded21edcec18b2b21fecf3947c1052983bbe9d5f66da7545b9ca982"`
Nov 29 16:11:08.489 INFO [stdout] c7372e228ded21edcec18b2b21fecf3947c1052983bbe9d5f66da7545b9ca982