Dec 12 23:30:49.292 INFO testing tperdue321/rust_basics against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 12 23:30:49.293 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-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 12 23:30:49.472 INFO [stdout] cf64713eda44e80258a35baffd65f441aa6b63101ce192cbaa4bfe83b37c38da
Dec 12 23:30:49.474 INFO running `"docker" "start" "-a" "cf64713eda44e80258a35baffd65f441aa6b63101ce192cbaa4bfe83b37c38da"`
Dec 12 23:30:49.941 INFO [stderr] usermod: no changes
Dec 12 23:30:49.972 INFO [stderr]    Compiling basics v0.1.0 (/source)
Dec 12 23:30:50.108 INFO [stderr] warning: unused variable: `a`
Dec 12 23:30:50.108 INFO [stderr]  --> src/main.rs:9:9
Dec 12 23:30:50.108 INFO [stderr]   |
Dec 12 23:30:50.108 INFO [stderr] 9 |     let a: i32 = 1;
Dec 12 23:30:50.108 INFO [stderr]   |         ^ help: consider using `_a` instead
Dec 12 23:30:50.108 INFO [stderr]   |
Dec 12 23:30:50.108 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 12 23:30:50.108 INFO [stderr] 
Dec 12 23:30:50.108 INFO [stderr] warning: variable `b` is assigned to, but never used
Dec 12 23:30:50.108 INFO [stderr]   --> src/main.rs:14:13
Dec 12 23:30:50.108 INFO [stderr]    |
Dec 12 23:30:50.108 INFO [stderr] 14 |     let mut b: i32 = 15;
Dec 12 23:30:50.108 INFO [stderr]    |             ^
Dec 12 23:30:50.108 INFO [stderr]    |
Dec 12 23:30:50.108 INFO [stderr]    = note: consider using `_b` instead
Dec 12 23:30:50.108 INFO [stderr] 
Dec 12 23:30:50.109 INFO [stderr] warning: value assigned to `b` is never read
Dec 12 23:30:50.109 INFO [stderr]   --> src/main.rs:15:5
Dec 12 23:30:50.109 INFO [stderr]    |
Dec 12 23:30:50.109 INFO [stderr] 15 |     b = 25;
Dec 12 23:30:50.109 INFO [stderr]    |     ^
Dec 12 23:30:50.109 INFO [stderr]    |
Dec 12 23:30:50.109 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 12 23:30:50.109 INFO [stderr] 
Dec 12 23:30:50.109 INFO [stderr] warning: unused variable: `x`
Dec 12 23:30:50.109 INFO [stderr]   --> src/main.rs:17:9
Dec 12 23:30:50.109 INFO [stderr]    |
Dec 12 23:30:50.109 INFO [stderr] 17 |     let x: i32; // bindings need to be given a starting val. this is bad
Dec 12 23:30:50.109 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 12 23:30:50.109 INFO [stderr] 
Dec 12 23:30:50.109 INFO [stderr] warning: value assigned to `x` is never read
Dec 12 23:30:50.109 INFO [stderr]   --> src/main.rs:38:13
Dec 12 23:30:50.109 INFO [stderr]    |
Dec 12 23:30:50.109 INFO [stderr] 38 |     let mut x: i32 = 1;
Dec 12 23:30:50.109 INFO [stderr]    |             ^
Dec 12 23:30:50.109 INFO [stderr] 
Dec 12 23:30:50.109 INFO [stderr] warning: unused variable: `y`
Dec 12 23:30:50.109 INFO [stderr]   --> src/main.rs:42:9
Dec 12 23:30:50.109 INFO [stderr]    |
Dec 12 23:30:50.109 INFO [stderr] 42 |     let y = 4;
Dec 12 23:30:50.109 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 12 23:30:50.109 INFO [stderr] 
Dec 12 23:30:50.109 INFO [stderr] warning: unused variable: `y`
Dec 12 23:30:50.109 INFO [stderr]   --> src/main.rs:45:9
Dec 12 23:30:50.109 INFO [stderr]    |
Dec 12 23:30:50.109 INFO [stderr] 45 |     let y = "I can also be bound to text!"; // `y` is now of a different type.
Dec 12 23:30:50.109 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 12 23:30:50.109 INFO [stderr] 
Dec 12 23:30:50.109 INFO [stderr] warning: unused variable: `x`
Dec 12 23:30:50.109 INFO [stderr]   --> src/main.rs:60:9
Dec 12 23:30:50.109 INFO [stderr]    |
Dec 12 23:30:50.109 INFO [stderr] 60 |     let x = return_int_plus_1(1);
Dec 12 23:30:50.109 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 12 23:30:50.109 INFO [stderr] 
Dec 12 23:30:50.119 INFO [stderr] warning: function is never used: `diverges`
Dec 12 23:30:50.119 INFO [stderr]   --> src/main.rs:93:1
Dec 12 23:30:50.119 INFO [stderr]    |
Dec 12 23:30:50.119 INFO [stderr] 93 | fn diverges() -> ! {
Dec 12 23:30:50.119 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 12 23:30:50.119 INFO [stderr]    |
Dec 12 23:30:50.119 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 23:30:50.119 INFO [stderr] 
Dec 12 23:30:50.293 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
Dec 12 23:30:50.296 INFO [stderr] su: No module specific data is present
Dec 12 23:30:50.635 INFO running `"docker" "inspect" "cf64713eda44e80258a35baffd65f441aa6b63101ce192cbaa4bfe83b37c38da"`
Dec 12 23:30:50.752 INFO running `"docker" "rm" "-f" "cf64713eda44e80258a35baffd65f441aa6b63101ce192cbaa4bfe83b37c38da"`
Dec 12 23:30:50.871 INFO [stdout] cf64713eda44e80258a35baffd65f441aa6b63101ce192cbaa4bfe83b37c38da
Dec 12 23:30:50.874 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-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 12 23:30:51.110 INFO [stdout] 5c9934d1bc373092701a4854b96b9f32ac4679f24aab69d79ba70635960a70ba
Dec 12 23:30:51.112 INFO running `"docker" "start" "-a" "5c9934d1bc373092701a4854b96b9f32ac4679f24aab69d79ba70635960a70ba"`
Dec 12 23:30:51.507 INFO [stderr] usermod: no changes
Dec 12 23:30:51.535 INFO [stderr]    Compiling basics v0.1.0 (/source)
Dec 12 23:30:51.682 INFO [stderr] warning: unused variable: `a`
Dec 12 23:30:51.682 INFO [stderr]  --> src/main.rs:9:9
Dec 12 23:30:51.682 INFO [stderr]   |
Dec 12 23:30:51.682 INFO [stderr] 9 |     let a: i32 = 1;
Dec 12 23:30:51.682 INFO [stderr]   |         ^ help: consider using `_a` instead
Dec 12 23:30:51.682 INFO [stderr]   |
Dec 12 23:30:51.682 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 12 23:30:51.682 INFO [stderr] 
Dec 12 23:30:51.682 INFO [stderr] warning: variable `b` is assigned to, but never used
Dec 12 23:30:51.682 INFO [stderr]   --> src/main.rs:14:13
Dec 12 23:30:51.682 INFO [stderr]    |
Dec 12 23:30:51.682 INFO [stderr] 14 |     let mut b: i32 = 15;
Dec 12 23:30:51.682 INFO [stderr]    |             ^
Dec 12 23:30:51.682 INFO [stderr]    |
Dec 12 23:30:51.682 INFO [stderr]    = note: consider using `_b` instead
Dec 12 23:30:51.682 INFO [stderr] 
Dec 12 23:30:51.682 INFO [stderr] warning: value assigned to `b` is never read
Dec 12 23:30:51.682 INFO [stderr]   --> src/main.rs:15:5
Dec 12 23:30:51.682 INFO [stderr]    |
Dec 12 23:30:51.682 INFO [stderr] 15 |     b = 25;
Dec 12 23:30:51.682 INFO [stderr]    |     ^
Dec 12 23:30:51.682 INFO [stderr]    |
Dec 12 23:30:51.682 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 12 23:30:51.682 INFO [stderr] 
Dec 12 23:30:51.682 INFO [stderr] warning: unused variable: `x`
Dec 12 23:30:51.682 INFO [stderr]   --> src/main.rs:17:9
Dec 12 23:30:51.682 INFO [stderr]    |
Dec 12 23:30:51.682 INFO [stderr] 17 |     let x: i32; // bindings need to be given a starting val. this is bad
Dec 12 23:30:51.682 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 12 23:30:51.682 INFO [stderr] 
Dec 12 23:30:51.682 INFO [stderr] warning: value assigned to `x` is never read
Dec 12 23:30:51.682 INFO [stderr]   --> src/main.rs:38:13
Dec 12 23:30:51.682 INFO [stderr]    |
Dec 12 23:30:51.683 INFO [stderr] 38 |     let mut x: i32 = 1;
Dec 12 23:30:51.683 INFO [stderr]    |             ^
Dec 12 23:30:51.683 INFO [stderr] 
Dec 12 23:30:51.683 INFO [stderr] warning: unused variable: `y`
Dec 12 23:30:51.683 INFO [stderr]   --> src/main.rs:42:9
Dec 12 23:30:51.683 INFO [stderr]    |
Dec 12 23:30:51.683 INFO [stderr] 42 |     let y = 4;
Dec 12 23:30:51.683 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 12 23:30:51.683 INFO [stderr] 
Dec 12 23:30:51.683 INFO [stderr] warning: unused variable: `y`
Dec 12 23:30:51.683 INFO [stderr]   --> src/main.rs:45:9
Dec 12 23:30:51.683 INFO [stderr]    |
Dec 12 23:30:51.683 INFO [stderr] 45 |     let y = "I can also be bound to text!"; // `y` is now of a different type.
Dec 12 23:30:51.683 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 12 23:30:51.683 INFO [stderr] 
Dec 12 23:30:51.683 INFO [stderr] warning: unused variable: `x`
Dec 12 23:30:51.683 INFO [stderr]   --> src/main.rs:60:9
Dec 12 23:30:51.683 INFO [stderr]    |
Dec 12 23:30:51.683 INFO [stderr] 60 |     let x = return_int_plus_1(1);
Dec 12 23:30:51.683 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 12 23:30:51.683 INFO [stderr] 
Dec 12 23:30:51.683 INFO [stderr] warning: function is never used: `diverges`
Dec 12 23:30:51.683 INFO [stderr]   --> src/main.rs:93:1
Dec 12 23:30:51.683 INFO [stderr]    |
Dec 12 23:30:51.683 INFO [stderr] 93 | fn diverges() -> ! {
Dec 12 23:30:51.683 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 12 23:30:51.683 INFO [stderr]    |
Dec 12 23:30:51.683 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 23:30:51.683 INFO [stderr] 
Dec 12 23:30:51.943 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
Dec 12 23:30:51.944 INFO [stderr] su: No module specific data is present
Dec 12 23:30:52.223 INFO running `"docker" "inspect" "5c9934d1bc373092701a4854b96b9f32ac4679f24aab69d79ba70635960a70ba"`
Dec 12 23:30:52.369 INFO running `"docker" "rm" "-f" "5c9934d1bc373092701a4854b96b9f32ac4679f24aab69d79ba70635960a70ba"`
Dec 12 23:30:52.502 INFO [stdout] 5c9934d1bc373092701a4854b96b9f32ac4679f24aab69d79ba70635960a70ba
Dec 12 23:30:52.678 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen" "-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 12 23:30:52.955 INFO [stdout] b10655eecfaaf163cff6d147c2556a9ea301e57366316398ae1155ce13a5ed3d
Dec 12 23:30:53.025 INFO running `"docker" "start" "-a" "b10655eecfaaf163cff6d147c2556a9ea301e57366316398ae1155ce13a5ed3d"`
Dec 12 23:30:53.740 INFO [stderr] usermod: no changes
Dec 12 23:30:53.747 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 12 23:30:53.748 INFO [stderr]      Running /target/debug/deps/basics-2985b1cffb370169
Dec 12 23:30:53.752 INFO [stdout] 
Dec 12 23:30:53.752 INFO [stdout] running 0 tests
Dec 12 23:30:53.752 INFO [stdout] 
Dec 12 23:30:53.752 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 12 23:30:53.752 INFO [stdout] 
Dec 12 23:30:53.754 INFO [stderr] su: No module specific data is present
Dec 12 23:30:54.023 INFO running `"docker" "inspect" "b10655eecfaaf163cff6d147c2556a9ea301e57366316398ae1155ce13a5ed3d"`
Dec 12 23:30:54.120 INFO running `"docker" "rm" "-f" "b10655eecfaaf163cff6d147c2556a9ea301e57366316398ae1155ce13a5ed3d"`
Dec 12 23:30:54.223 INFO [stdout] b10655eecfaaf163cff6d147c2556a9ea301e57366316398ae1155ce13a5ed3d