Dec 05 02:43:58.336 INFO checking EdenCao/rust_learning against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 02:43:58.336 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 05 02:43:58.865 INFO [stdout] 631e9a23aa5134f92a97e9b0141c0b48bb2bbf3da807fc03f975bb68e46fab1a
Dec 05 02:43:58.868 INFO running `"docker" "start" "-a" "631e9a23aa5134f92a97e9b0141c0b48bb2bbf3da807fc03f975bb68e46fab1a"`
Dec 05 02:44:00.235 INFO [stderr] usermod: no changes
Dec 05 02:44:00.451 INFO [stderr]     Checking rust_learning v0.1.0 (/source)
Dec 05 02:44:03.343 INFO [stderr] warning: unused import: `std::rc::Rc`
Dec 05 02:44:03.343 INFO [stderr]  --> src/shared_mem.rs:1:5
Dec 05 02:44:03.344 INFO [stderr]   |
Dec 05 02:44:03.344 INFO [stderr] 1 | use std::rc::Rc;
Dec 05 02:44:03.344 INFO [stderr]   |     ^^^^^^^^^^^
Dec 05 02:44:03.345 INFO [stderr]   |
Dec 05 02:44:03.345 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 02:44:03.345 INFO [stderr] 
Dec 05 02:44:03.392 INFO [stderr] warning: doc comment not used by rustdoc
Dec 05 02:44:03.392 INFO [stderr]   --> src/struct_ex.rs:17:3
Dec 05 02:44:03.393 INFO [stderr]    |
Dec 05 02:44:03.393 INFO [stderr] 17 |   ///
Dec 05 02:44:03.393 INFO [stderr]    |   ^^^
Dec 05 02:44:03.400 INFO [stderr]    |
Dec 05 02:44:03.400 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Dec 05 02:44:03.400 INFO [stderr] 
Dec 05 02:44:04.282 INFO [stderr] warning: unused variable: `six`
Dec 05 02:44:04.282 INFO [stderr]   --> src/enum.rs:20:7
Dec 05 02:44:04.282 INFO [stderr]    |
Dec 05 02:44:04.282 INFO [stderr] 20 |   let six = IpAddrKind::V6;
Dec 05 02:44:04.282 INFO [stderr]    |       ^^^ help: consider using `_six` instead
Dec 05 02:44:04.282 INFO [stderr]    |
Dec 05 02:44:04.282 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:44:04.282 INFO [stderr] 
Dec 05 02:44:04.282 INFO [stderr] warning: unused variable: `home`
Dec 05 02:44:04.282 INFO [stderr]   --> src/enum.rs:27:7
Dec 05 02:44:04.282 INFO [stderr]    |
Dec 05 02:44:04.282 INFO [stderr] 27 |   let home = IpAddr {
Dec 05 02:44:04.282 INFO [stderr]    |       ^^^^ help: consider using `_home` instead
Dec 05 02:44:04.282 INFO [stderr] 
Dec 05 02:44:04.282 INFO [stderr] warning: unused variable: `op_type`
Dec 05 02:44:04.282 INFO [stderr]   --> src/enum.rs:35:10
Dec 05 02:44:04.282 INFO [stderr]    |
Dec 05 02:44:04.282 INFO [stderr] 35 | fn route(op_type: IpAddrKind) { }
Dec 05 02:44:04.282 INFO [stderr]    |          ^^^^^^^ help: consider using `_op_type` instead
Dec 05 02:44:04.282 INFO [stderr] 
Dec 05 02:44:04.282 INFO [stderr] warning: field is never used: `kind`
Dec 05 02:44:04.282 INFO [stderr]   --> src/enum.rs:14:3
Dec 05 02:44:04.282 INFO [stderr]    |
Dec 05 02:44:04.282 INFO [stderr] 14 |   kind: IpAddrKind,
Dec 05 02:44:04.282 INFO [stderr]    |   ^^^^^^^^^^^^^^^^
Dec 05 02:44:04.282 INFO [stderr]    |
Dec 05 02:44:04.282 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 02:44:04.282 INFO [stderr] 
Dec 05 02:44:04.282 INFO [stderr] warning: field is never used: `address`
Dec 05 02:44:04.282 INFO [stderr]   --> src/enum.rs:15:3
Dec 05 02:44:04.282 INFO [stderr]    |
Dec 05 02:44:04.282 INFO [stderr] 15 |   address: String
Dec 05 02:44:04.282 INFO [stderr]    |   ^^^^^^^^^^^^^^^
Dec 05 02:44:04.282 INFO [stderr] 
Dec 05 02:44:06.523 INFO [stderr] warning: unused variable: `integer`
Dec 05 02:44:06.523 INFO [stderr]   --> src/generics.rs:14:7
Dec 05 02:44:06.523 INFO [stderr]    |
Dec 05 02:44:06.523 INFO [stderr] 14 |   let integer = Point {
Dec 05 02:44:06.523 INFO [stderr]    |       ^^^^^^^ help: consider using `_integer` instead
Dec 05 02:44:06.523 INFO [stderr]    |
Dec 05 02:44:06.523 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:44:06.523 INFO [stderr] 
Dec 05 02:44:06.567 INFO [stderr] warning: field is never used: `y`
Dec 05 02:44:06.567 INFO [stderr]  --> src/generics.rs:3:3
Dec 05 02:44:06.567 INFO [stderr]   |
Dec 05 02:44:06.567 INFO [stderr] 3 |   y: T
Dec 05 02:44:06.567 INFO [stderr]   |   ^^^^
Dec 05 02:44:06.611 INFO [stderr]   |
Dec 05 02:44:06.611 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 02:44:06.611 INFO [stderr] 
Dec 05 02:44:06.895 INFO [stderr] warning: unused variable: `integer`
Dec 05 02:44:06.895 INFO [stderr]   --> src/generics.rs:14:7
Dec 05 02:44:06.895 INFO [stderr]    |
Dec 05 02:44:06.895 INFO [stderr] 14 |   let integer = Point {
Dec 05 02:44:06.895 INFO [stderr]    |       ^^^^^^^ help: consider using `_integer` instead
Dec 05 02:44:06.899 INFO [stderr]    |
Dec 05 02:44:06.899 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:44:06.899 INFO [stderr] 
Dec 05 02:44:06.907 INFO [stderr] warning: field is never used: `y`
Dec 05 02:44:06.907 INFO [stderr]  --> src/generics.rs:3:3
Dec 05 02:44:06.907 INFO [stderr]   |
Dec 05 02:44:06.907 INFO [stderr] 3 |   y: T
Dec 05 02:44:06.907 INFO [stderr]   |   ^^^^
Dec 05 02:44:06.907 INFO [stderr]   |
Dec 05 02:44:06.907 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 02:44:06.907 INFO [stderr] 
Dec 05 02:44:09.543 INFO [stderr] warning: variable does not need to be mutable
Dec 05 02:44:09.543 INFO [stderr]  --> src/slice.rs:2:7
Dec 05 02:44:09.544 INFO [stderr]   |
Dec 05 02:44:09.544 INFO [stderr] 2 |   let mut s = String::from("hello world");
Dec 05 02:44:09.544 INFO [stderr]   |       ----^
Dec 05 02:44:09.545 INFO [stderr]   |       |
Dec 05 02:44:09.545 INFO [stderr]   |       help: remove this `mut`
Dec 05 02:44:09.551 INFO [stderr]   |
Dec 05 02:44:09.551 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 05 02:44:09.551 INFO [stderr] 
Dec 05 02:44:09.599 INFO [stderr] error[E0601]: `main` function not found in crate `refcall`
Dec 05 02:44:09.599 INFO [stderr]   |
Dec 05 02:44:09.599 INFO [stderr]   = note: consider adding a `main` function to `src/refcall.rs`
Dec 05 02:44:09.599 INFO [stderr] 
Dec 05 02:44:09.715 INFO [stderr] error: aborting due to previous error
Dec 05 02:44:09.715 INFO [stderr] 
Dec 05 02:44:09.715 INFO [stderr] For more information about this error, try `rustc --explain E0601`.
Dec 05 02:44:09.747 INFO [stderr] error: Could not compile `rust_learning`.
Dec 05 02:44:09.747 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 05 02:44:09.927 INFO [stderr] warning: unused import: `std::rc::Rc`
Dec 05 02:44:09.927 INFO [stderr]  --> src/shared_mem.rs:1:5
Dec 05 02:44:09.927 INFO [stderr]   |
Dec 05 02:44:09.927 INFO [stderr] 1 | use std::rc::Rc;
Dec 05 02:44:09.927 INFO [stderr]   |     ^^^^^^^^^^^
Dec 05 02:44:09.927 INFO [stderr]   |
Dec 05 02:44:09.927 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 02:44:09.927 INFO [stderr] 
Dec 05 02:44:10.818 INFO [stderr] warning: variable does not need to be mutable
Dec 05 02:44:10.818 INFO [stderr]  --> src/slice.rs:2:7
Dec 05 02:44:10.818 INFO [stderr]   |
Dec 05 02:44:10.818 INFO [stderr] 2 |   let mut s = String::from("hello world");
Dec 05 02:44:10.818 INFO [stderr]   |       ----^
Dec 05 02:44:10.818 INFO [stderr]   |       |
Dec 05 02:44:10.818 INFO [stderr]   |       help: remove this `mut`
Dec 05 02:44:10.831 INFO [stderr]   |
Dec 05 02:44:10.831 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 05 02:44:10.831 INFO [stderr] 
Dec 05 02:44:11.195 INFO [stderr] warning: unused variable: `user2`
Dec 05 02:44:11.195 INFO [stderr]   --> src/struct.rs:14:7
Dec 05 02:44:11.195 INFO [stderr]    |
Dec 05 02:44:11.195 INFO [stderr] 14 |   let user2 = User {
Dec 05 02:44:11.195 INFO [stderr]    |       ^^^^^ help: consider using `_user2` instead
Dec 05 02:44:11.195 INFO [stderr]    |
Dec 05 02:44:11.195 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:44:11.195 INFO [stderr] 
Dec 05 02:44:11.195 INFO [stderr] warning: unused variable: `black`
Dec 05 02:44:11.195 INFO [stderr]   --> src/struct.rs:20:7
Dec 05 02:44:11.195 INFO [stderr]    |
Dec 05 02:44:11.195 INFO [stderr] 20 |   let black = Color(0, 0, 0);
Dec 05 02:44:11.195 INFO [stderr]    |       ^^^^^ help: consider using `_black` instead
Dec 05 02:44:11.195 INFO [stderr] 
Dec 05 02:44:11.214 INFO [stderr] warning: field is never used: `username`
Dec 05 02:44:11.214 INFO [stderr]  --> src/struct.rs:2:3
Dec 05 02:44:11.214 INFO [stderr]   |
Dec 05 02:44:11.214 INFO [stderr] 2 |   username: String,
Dec 05 02:44:11.214 INFO [stderr]   |   ^^^^^^^^^^^^^^^^
Dec 05 02:44:11.214 INFO [stderr]   |
Dec 05 02:44:11.214 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 02:44:11.214 INFO [stderr] 
Dec 05 02:44:11.214 INFO [stderr] warning: field is never used: `email`
Dec 05 02:44:11.214 INFO [stderr]  --> src/struct.rs:3:3
Dec 05 02:44:11.214 INFO [stderr]   |
Dec 05 02:44:11.214 INFO [stderr] 3 |   email: String,
Dec 05 02:44:11.214 INFO [stderr]   |   ^^^^^^^^^^^^^
Dec 05 02:44:11.214 INFO [stderr] 
Dec 05 02:44:11.214 INFO [stderr] warning: field is never used: `sign_in_count`
Dec 05 02:44:11.214 INFO [stderr]  --> src/struct.rs:4:3
Dec 05 02:44:11.214 INFO [stderr]   |
Dec 05 02:44:11.214 INFO [stderr] 4 |   sign_in_count: u64,
Dec 05 02:44:11.214 INFO [stderr]   |   ^^^^^^^^^^^^^^^^^^
Dec 05 02:44:11.214 INFO [stderr] 
Dec 05 02:44:11.214 INFO [stderr] warning: field is never used: `active`
Dec 05 02:44:11.214 INFO [stderr]  --> src/struct.rs:5:3
Dec 05 02:44:11.214 INFO [stderr]   |
Dec 05 02:44:11.214 INFO [stderr] 5 |   active: bool
Dec 05 02:44:11.214 INFO [stderr]   |   ^^^^^^^^^^^^
Dec 05 02:44:11.214 INFO [stderr] 
Dec 05 02:44:11.517 INFO [stderr] error: build failed
Dec 05 02:44:11.520 INFO [stderr] su: No module specific data is present
Dec 05 02:44:12.341 INFO running `"docker" "inspect" "631e9a23aa5134f92a97e9b0141c0b48bb2bbf3da807fc03f975bb68e46fab1a"`
Dec 05 02:44:12.553 INFO running `"docker" "rm" "-f" "631e9a23aa5134f92a97e9b0141c0b48bb2bbf3da807fc03f975bb68e46fab1a"`
Dec 05 02:44:12.923 INFO [stdout] 631e9a23aa5134f92a97e9b0141c0b48bb2bbf3da807fc03f975bb68e46fab1a