Dec 11 07:23:40.158 INFO checking tperdue321/rust_basics against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 07:23:40.159 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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"`
Dec 11 07:23:40.657 INFO [stdout] d9255d2bc73e91233d5c87aa0cd2bcc54acd63dd1d4c889db4287125487cf50a
Dec 11 07:23:40.660 INFO running `"docker" "start" "-a" "d9255d2bc73e91233d5c87aa0cd2bcc54acd63dd1d4c889db4287125487cf50a"`
Dec 11 07:23:41.586 INFO [stderr] usermod: no changes
Dec 11 07:23:41.624 INFO [stderr]     Checking basics v0.1.0 (/source)
Dec 11 07:23:41.764 INFO [stderr] warning: unused variable: `a`
Dec 11 07:23:41.764 INFO [stderr]  --> src/main.rs:9:9
Dec 11 07:23:41.764 INFO [stderr]   |
Dec 11 07:23:41.764 INFO [stderr] 9 |     let a: i32 = 1;
Dec 11 07:23:41.764 INFO [stderr]   |         ^ help: consider using `_a` instead
Dec 11 07:23:41.764 INFO [stderr]   |
Dec 11 07:23:41.764 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 11 07:23:41.764 INFO [stderr] 
Dec 11 07:23:41.764 INFO [stderr] warning: variable `b` is assigned to, but never used
Dec 11 07:23:41.764 INFO [stderr]   --> src/main.rs:14:13
Dec 11 07:23:41.764 INFO [stderr]    |
Dec 11 07:23:41.764 INFO [stderr] 14 |     let mut b: i32 = 15;
Dec 11 07:23:41.764 INFO [stderr]    |             ^
Dec 11 07:23:41.764 INFO [stderr]    |
Dec 11 07:23:41.764 INFO [stderr]    = note: consider using `_b` instead
Dec 11 07:23:41.764 INFO [stderr] 
Dec 11 07:23:41.764 INFO [stderr] warning: value assigned to `b` is never read
Dec 11 07:23:41.764 INFO [stderr]   --> src/main.rs:15:5
Dec 11 07:23:41.764 INFO [stderr]    |
Dec 11 07:23:41.764 INFO [stderr] 15 |     b = 25;
Dec 11 07:23:41.764 INFO [stderr]    |     ^
Dec 11 07:23:41.764 INFO [stderr]    |
Dec 11 07:23:41.764 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 11 07:23:41.764 INFO [stderr] 
Dec 11 07:23:41.764 INFO [stderr] warning: unused variable: `x`
Dec 11 07:23:41.764 INFO [stderr]   --> src/main.rs:17:9
Dec 11 07:23:41.764 INFO [stderr]    |
Dec 11 07:23:41.764 INFO [stderr] 17 |     let x: i32; // bindings need to be given a starting val. this is bad
Dec 11 07:23:41.764 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 11 07:23:41.764 INFO [stderr] 
Dec 11 07:23:41.764 INFO [stderr] warning: value assigned to `x` is never read
Dec 11 07:23:41.764 INFO [stderr]   --> src/main.rs:38:13
Dec 11 07:23:41.764 INFO [stderr]    |
Dec 11 07:23:41.764 INFO [stderr] 38 |     let mut x: i32 = 1;
Dec 11 07:23:41.764 INFO [stderr]    |             ^
Dec 11 07:23:41.765 INFO [stderr] 
Dec 11 07:23:41.765 INFO [stderr] warning: unused variable: `y`
Dec 11 07:23:41.765 INFO [stderr]   --> src/main.rs:42:9
Dec 11 07:23:41.765 INFO [stderr]    |
Dec 11 07:23:41.765 INFO [stderr] 42 |     let y = 4;
Dec 11 07:23:41.765 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 11 07:23:41.765 INFO [stderr] 
Dec 11 07:23:41.765 INFO [stderr] warning: unused variable: `y`
Dec 11 07:23:41.765 INFO [stderr]   --> src/main.rs:45:9
Dec 11 07:23:41.765 INFO [stderr]    |
Dec 11 07:23:41.765 INFO [stderr] 45 |     let y = "I can also be bound to text!"; // `y` is now of a different type.
Dec 11 07:23:41.765 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 11 07:23:41.765 INFO [stderr] 
Dec 11 07:23:41.765 INFO [stderr] warning: unused variable: `x`
Dec 11 07:23:41.765 INFO [stderr]   --> src/main.rs:60:9
Dec 11 07:23:41.765 INFO [stderr]    |
Dec 11 07:23:41.765 INFO [stderr] 60 |     let x = return_int_plus_1(1);
Dec 11 07:23:41.765 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 11 07:23:41.771 INFO [stderr] 
Dec 11 07:23:41.772 INFO [stderr] warning: function is never used: `diverges`
Dec 11 07:23:41.772 INFO [stderr]   --> src/main.rs:93:1
Dec 11 07:23:41.772 INFO [stderr]    |
Dec 11 07:23:41.772 INFO [stderr] 93 | fn diverges() -> ! {
Dec 11 07:23:41.772 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 11 07:23:41.772 INFO [stderr]    |
Dec 11 07:23:41.772 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 07:23:41.772 INFO [stderr] 
Dec 11 07:23:41.788 INFO [stderr] warning: unused variable: `a`
Dec 11 07:23:41.788 INFO [stderr]  --> src/main.rs:9:9
Dec 11 07:23:41.788 INFO [stderr]   |
Dec 11 07:23:41.788 INFO [stderr] 9 |     let a: i32 = 1;
Dec 11 07:23:41.788 INFO [stderr]   |         ^ help: consider using `_a` instead
Dec 11 07:23:41.788 INFO [stderr]   |
Dec 11 07:23:41.788 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 11 07:23:41.788 INFO [stderr] 
Dec 11 07:23:41.788 INFO [stderr] warning: variable `b` is assigned to, but never used
Dec 11 07:23:41.788 INFO [stderr]   --> src/main.rs:14:13
Dec 11 07:23:41.788 INFO [stderr]    |
Dec 11 07:23:41.788 INFO [stderr] 14 |     let mut b: i32 = 15;
Dec 11 07:23:41.788 INFO [stderr]    |             ^
Dec 11 07:23:41.788 INFO [stderr]    |
Dec 11 07:23:41.788 INFO [stderr]    = note: consider using `_b` instead
Dec 11 07:23:41.789 INFO [stderr] 
Dec 11 07:23:41.789 INFO [stderr] warning: value assigned to `b` is never read
Dec 11 07:23:41.789 INFO [stderr]   --> src/main.rs:15:5
Dec 11 07:23:41.789 INFO [stderr]    |
Dec 11 07:23:41.789 INFO [stderr] 15 |     b = 25;
Dec 11 07:23:41.789 INFO [stderr]    |     ^
Dec 11 07:23:41.789 INFO [stderr]    |
Dec 11 07:23:41.789 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 11 07:23:41.789 INFO [stderr] 
Dec 11 07:23:41.789 INFO [stderr] warning: unused variable: `x`
Dec 11 07:23:41.789 INFO [stderr]   --> src/main.rs:17:9
Dec 11 07:23:41.789 INFO [stderr]    |
Dec 11 07:23:41.789 INFO [stderr] 17 |     let x: i32; // bindings need to be given a starting val. this is bad
Dec 11 07:23:41.789 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 11 07:23:41.789 INFO [stderr] 
Dec 11 07:23:41.789 INFO [stderr] warning: value assigned to `x` is never read
Dec 11 07:23:41.789 INFO [stderr]   --> src/main.rs:38:13
Dec 11 07:23:41.789 INFO [stderr]    |
Dec 11 07:23:41.789 INFO [stderr] 38 |     let mut x: i32 = 1;
Dec 11 07:23:41.789 INFO [stderr]    |             ^
Dec 11 07:23:41.789 INFO [stderr] 
Dec 11 07:23:41.789 INFO [stderr] warning: unused variable: `y`
Dec 11 07:23:41.789 INFO [stderr]   --> src/main.rs:42:9
Dec 11 07:23:41.789 INFO [stderr]    |
Dec 11 07:23:41.789 INFO [stderr] 42 |     let y = 4;
Dec 11 07:23:41.789 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 11 07:23:41.789 INFO [stderr] 
Dec 11 07:23:41.789 INFO [stderr] warning: unused variable: `y`
Dec 11 07:23:41.789 INFO [stderr]   --> src/main.rs:45:9
Dec 11 07:23:41.789 INFO [stderr]    |
Dec 11 07:23:41.789 INFO [stderr] 45 |     let y = "I can also be bound to text!"; // `y` is now of a different type.
Dec 11 07:23:41.789 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 11 07:23:41.789 INFO [stderr] 
Dec 11 07:23:41.789 INFO [stderr] warning: unused variable: `x`
Dec 11 07:23:41.789 INFO [stderr]   --> src/main.rs:60:9
Dec 11 07:23:41.789 INFO [stderr]    |
Dec 11 07:23:41.789 INFO [stderr] 60 |     let x = return_int_plus_1(1);
Dec 11 07:23:41.789 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 11 07:23:41.789 INFO [stderr] 
Dec 11 07:23:41.795 INFO [stderr] warning: function is never used: `diverges`
Dec 11 07:23:41.795 INFO [stderr]   --> src/main.rs:93:1
Dec 11 07:23:41.795 INFO [stderr]    |
Dec 11 07:23:41.795 INFO [stderr] 93 | fn diverges() -> ! {
Dec 11 07:23:41.795 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 11 07:23:41.795 INFO [stderr]    |
Dec 11 07:23:41.795 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 07:23:41.795 INFO [stderr] 
Dec 11 07:23:41.818 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
Dec 11 07:23:41.820 INFO [stderr] su: No module specific data is present
Dec 11 07:23:42.173 INFO running `"docker" "inspect" "d9255d2bc73e91233d5c87aa0cd2bcc54acd63dd1d4c889db4287125487cf50a"`
Dec 11 07:23:42.337 INFO running `"docker" "rm" "-f" "d9255d2bc73e91233d5c87aa0cd2bcc54acd63dd1d4c889db4287125487cf50a"`
Dec 11 07:23:42.463 INFO [stdout] d9255d2bc73e91233d5c87aa0cd2bcc54acd63dd1d4c889db4287125487cf50a