Nov 28 10:17:55.483 INFO checking YoshikuniJujo/learn_rust against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 10:17:55.484 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-3/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 28 10:17:56.017 INFO [stdout] 4c2898aac3ac1dea9e146bea029a6a860f1c04b591ff3adacc3a4227d97148b9
Nov 28 10:17:56.026 INFO running `"docker" "start" "-a" "4c2898aac3ac1dea9e146bea029a6a860f1c04b591ff3adacc3a4227d97148b9"`
Nov 28 10:17:57.820 INFO [stderr] usermod: no changes
Nov 28 10:17:57.941 INFO [stderr]     Checking learn_rust v0.1.0 (/source)
Nov 28 10:18:00.472 INFO [stderr] warning: value assigned to `x` is never read
Nov 28 10:18:00.473 INFO [stderr]  --> src/mutability.rs:9:10
Nov 28 10:18:00.474 INFO [stderr]   |
Nov 28 10:18:00.475 INFO [stderr] 9 |     let mut x = 5;
Nov 28 10:18:00.475 INFO [stderr]   |             ^
Nov 28 10:18:00.476 INFO [stderr]   |
Nov 28 10:18:00.476 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Nov 28 10:18:00.477 INFO [stderr] 
Nov 28 10:18:00.477 INFO [stderr] warning: variable `y` is assigned to, but never used
Nov 28 10:18:00.478 INFO [stderr]   --> src/mutability.rs:13:10
Nov 28 10:18:00.478 INFO [stderr]    |
Nov 28 10:18:00.479 INFO [stderr] 13 |     let mut y = &mut x;
Nov 28 10:18:00.480 INFO [stderr]    |             ^
Nov 28 10:18:00.480 INFO [stderr]    |
Nov 28 10:18:00.481 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 10:18:00.481 INFO [stderr]    = note: consider using `_y` instead
Nov 28 10:18:00.482 INFO [stderr] 
Nov 28 10:18:00.482 INFO [stderr] warning: value assigned to `y` is never read
Nov 28 10:18:00.483 INFO [stderr]   --> src/mutability.rs:14:2
Nov 28 10:18:00.483 INFO [stderr]    |
Nov 28 10:18:00.484 INFO [stderr] 14 |     y = &mut z;
Nov 28 10:18:00.484 INFO [stderr]    |     ^
Nov 28 10:18:00.484 INFO [stderr] 
Nov 28 10:18:00.505 INFO [stderr] warning: field is never used: `x`
Nov 28 10:18:00.505 INFO [stderr]  --> src/mutability.rs:4:2
Nov 28 10:18:00.505 INFO [stderr]   |
Nov 28 10:18:00.505 INFO [stderr] 4 |     x: i32,
Nov 28 10:18:00.505 INFO [stderr]   |     ^^^^^^
Nov 28 10:18:00.505 INFO [stderr]   |
Nov 28 10:18:00.506 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 28 10:18:00.506 INFO [stderr] 
Nov 28 10:18:00.602 INFO [stderr] warning: function is never used: `foo`
Nov 28 10:18:00.603 INFO [stderr]   --> src/ownership.rs:26:1
Nov 28 10:18:00.603 INFO [stderr]    |
Nov 28 10:18:00.603 INFO [stderr] 26 | fn foo(v: Vec<i32>) -> Vec<i32> {
Nov 28 10:18:00.603 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:18:00.603 INFO [stderr]    |
Nov 28 10:18:00.603 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 10:18:00.603 INFO [stderr] 
Nov 28 10:18:01.040 INFO [stderr] warning: function is never used: `foo`
Nov 28 10:18:01.040 INFO [stderr]   --> src/ownership.rs:26:1
Nov 28 10:18:01.040 INFO [stderr]    |
Nov 28 10:18:01.040 INFO [stderr] 26 | fn foo(v: Vec<i32>) -> Vec<i32> {
Nov 28 10:18:01.040 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:18:01.040 INFO [stderr]    |
Nov 28 10:18:01.040 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 10:18:01.040 INFO [stderr] 
Nov 28 10:18:02.938 INFO [stderr] warning: value assigned to `x` is never read
Nov 28 10:18:02.939 INFO [stderr]  --> src/mutability.rs:9:10
Nov 28 10:18:02.939 INFO [stderr]   |
Nov 28 10:18:02.939 INFO [stderr] 9 |     let mut x = 5;
Nov 28 10:18:02.939 INFO [stderr]   |             ^
Nov 28 10:18:02.940 INFO [stderr]   |
Nov 28 10:18:02.940 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Nov 28 10:18:02.940 INFO [stderr] 
Nov 28 10:18:02.940 INFO [stderr] warning: variable `y` is assigned to, but never used
Nov 28 10:18:02.941 INFO [stderr]   --> src/mutability.rs:13:10
Nov 28 10:18:02.941 INFO [stderr]    |
Nov 28 10:18:02.941 INFO [stderr] 13 |     let mut y = &mut x;
Nov 28 10:18:02.942 INFO [stderr]    |             ^
Nov 28 10:18:02.942 INFO [stderr]    |
Nov 28 10:18:02.942 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 10:18:02.942 INFO [stderr]    = note: consider using `_y` instead
Nov 28 10:18:02.943 INFO [stderr] 
Nov 28 10:18:02.943 INFO [stderr] warning: value assigned to `y` is never read
Nov 28 10:18:02.943 INFO [stderr]   --> src/mutability.rs:14:2
Nov 28 10:18:02.944 INFO [stderr]    |
Nov 28 10:18:02.944 INFO [stderr] 14 |     y = &mut z;
Nov 28 10:18:02.944 INFO [stderr]    |     ^
Nov 28 10:18:02.945 INFO [stderr] 
Nov 28 10:18:02.962 INFO [stderr] warning: field is never used: `x`
Nov 28 10:18:02.962 INFO [stderr]  --> src/mutability.rs:4:2
Nov 28 10:18:02.963 INFO [stderr]   |
Nov 28 10:18:02.963 INFO [stderr] 4 |     x: i32,
Nov 28 10:18:02.963 INFO [stderr]   |     ^^^^^^
Nov 28 10:18:02.969 INFO [stderr]   |
Nov 28 10:18:02.969 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 28 10:18:02.969 INFO [stderr] 
Nov 28 10:18:04.190 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.34s
Nov 28 10:18:04.204 INFO [stderr] su: No module specific data is present
Nov 28 10:18:04.626 INFO running `"docker" "inspect" "4c2898aac3ac1dea9e146bea029a6a860f1c04b591ff3adacc3a4227d97148b9"`
Nov 28 10:18:04.823 INFO running `"docker" "rm" "-f" "4c2898aac3ac1dea9e146bea029a6a860f1c04b591ff3adacc3a4227d97148b9"`
Nov 28 10:18:05.140 INFO [stdout] 4c2898aac3ac1dea9e146bea029a6a860f1c04b591ff3adacc3a4227d97148b9