Dec 05 02:43:55.529 INFO checking EdenCao/rust_learning against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 02:43:55.529 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 02:43:55.854 INFO [stdout] 3f7e8976626b031b916235fb9aa9dfabda40c4c775f600adae77f3826904ce1b
Dec 05 02:43:55.859 INFO running `"docker" "start" "-a" "3f7e8976626b031b916235fb9aa9dfabda40c4c775f600adae77f3826904ce1b"`
Dec 05 02:43:56.923 INFO [stderr] usermod: no changes
Dec 05 02:43:57.032 INFO [stderr]     Checking rust_learning v0.1.0 (/source)
Dec 05 02:43:58.441 INFO [stderr] warning: doc comment not used by rustdoc
Dec 05 02:43:58.441 INFO [stderr]   --> src/struct_ex.rs:17:3
Dec 05 02:43:58.441 INFO [stderr]    |
Dec 05 02:43:58.441 INFO [stderr] 17 |   ///
Dec 05 02:43:58.442 INFO [stderr]    |   ^^^
Dec 05 02:43:58.442 INFO [stderr]    |
Dec 05 02:43:58.442 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Dec 05 02:43:58.442 INFO [stderr] 
Dec 05 02:43:58.540 INFO [stderr] warning: unused variable: `user2`
Dec 05 02:43:58.540 INFO [stderr]   --> src/struct.rs:14:7
Dec 05 02:43:58.540 INFO [stderr]    |
Dec 05 02:43:58.540 INFO [stderr] 14 |   let user2 = User {
Dec 05 02:43:58.540 INFO [stderr]    |       ^^^^^ help: consider using `_user2` instead
Dec 05 02:43:58.540 INFO [stderr]    |
Dec 05 02:43:58.540 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:43:58.540 INFO [stderr] 
Dec 05 02:43:58.540 INFO [stderr] warning: unused variable: `black`
Dec 05 02:43:58.540 INFO [stderr]   --> src/struct.rs:20:7
Dec 05 02:43:58.540 INFO [stderr]    |
Dec 05 02:43:58.540 INFO [stderr] 20 |   let black = Color(0, 0, 0);
Dec 05 02:43:58.540 INFO [stderr]    |       ^^^^^ help: consider using `_black` instead
Dec 05 02:43:58.540 INFO [stderr] 
Dec 05 02:43:58.542 INFO [stderr] warning: field is never used: `username`
Dec 05 02:43:58.542 INFO [stderr]  --> src/struct.rs:2:3
Dec 05 02:43:58.542 INFO [stderr]   |
Dec 05 02:43:58.542 INFO [stderr] 2 |   username: String,
Dec 05 02:43:58.542 INFO [stderr]   |   ^^^^^^^^^^^^^^^^
Dec 05 02:43:58.542 INFO [stderr]   |
Dec 05 02:43:58.542 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 02:43:58.542 INFO [stderr] 
Dec 05 02:43:58.542 INFO [stderr] warning: field is never used: `email`
Dec 05 02:43:58.543 INFO [stderr]  --> src/struct.rs:3:3
Dec 05 02:43:58.543 INFO [stderr]   |
Dec 05 02:43:58.543 INFO [stderr] 3 |   email: String,
Dec 05 02:43:58.543 INFO [stderr]   |   ^^^^^^^^^^^^^
Dec 05 02:43:58.543 INFO [stderr] 
Dec 05 02:43:58.543 INFO [stderr] warning: field is never used: `sign_in_count`
Dec 05 02:43:58.543 INFO [stderr]  --> src/struct.rs:4:3
Dec 05 02:43:58.543 INFO [stderr]   |
Dec 05 02:43:58.543 INFO [stderr] 4 |   sign_in_count: u64,
Dec 05 02:43:58.543 INFO [stderr]   |   ^^^^^^^^^^^^^^^^^^
Dec 05 02:43:58.551 INFO [stderr] 
Dec 05 02:43:58.551 INFO [stderr] warning: field is never used: `active`
Dec 05 02:43:58.551 INFO [stderr]  --> src/struct.rs:5:3
Dec 05 02:43:58.551 INFO [stderr]   |
Dec 05 02:43:58.551 INFO [stderr] 5 |   active: bool
Dec 05 02:43:58.551 INFO [stderr]   |   ^^^^^^^^^^^^
Dec 05 02:43:58.551 INFO [stderr] 
Dec 05 02:44:00.871 INFO [stderr] warning: field is never used: `query`
Dec 05 02:44:00.871 INFO [stderr]   --> src/read.rs:27:5
Dec 05 02:44:00.871 INFO [stderr]    |
Dec 05 02:44:00.871 INFO [stderr] 27 |     query: String,
Dec 05 02:44:00.871 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 05 02:44:00.871 INFO [stderr]    |
Dec 05 02:44:00.871 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 02:44:00.871 INFO [stderr] 
Dec 05 02:44:00.871 INFO [stderr] warning: function is never used: `search_case_insensitive`
Dec 05 02:44:00.871 INFO [stderr]   --> src/read.rs:82:1
Dec 05 02:44:00.871 INFO [stderr]    |
Dec 05 02:44:00.871 INFO [stderr] 82 | fn search_case_insensitive<'a>(query: &str, contents: &'a str) -> Vec<&'a str> {
Dec 05 02:44:00.871 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:44:00.871 INFO [stderr] 
Dec 05 02:44:01.851 INFO [stderr] warning: field is never used: `query`
Dec 05 02:44:01.851 INFO [stderr]   --> src/read.rs:27:5
Dec 05 02:44:01.851 INFO [stderr]    |
Dec 05 02:44:01.851 INFO [stderr] 27 |     query: String,
Dec 05 02:44:01.851 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 05 02:44:01.851 INFO [stderr]    |
Dec 05 02:44:01.851 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 02:44:01.851 INFO [stderr] 
Dec 05 02:44:02.016 INFO [stderr] warning: unused variable: `post`
Dec 05 02:44:02.016 INFO [stderr]   --> src/blog.rs:30:25
Dec 05 02:44:02.016 INFO [stderr]    |
Dec 05 02:44:02.016 INFO [stderr] 30 |   fn content<'a>(&self, post: &'a Post) -> &'a str {
Dec 05 02:44:02.016 INFO [stderr]    |                         ^^^^ help: consider using `_post` instead
Dec 05 02:44:02.016 INFO [stderr]    |
Dec 05 02:44:02.016 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:44:02.016 INFO [stderr] 
Dec 05 02:44:03.167 INFO [stderr] warning: unused variable: `integer`
Dec 05 02:44:03.167 INFO [stderr]   --> src/generics.rs:14:7
Dec 05 02:44:03.167 INFO [stderr]    |
Dec 05 02:44:03.167 INFO [stderr] 14 |   let integer = Point {
Dec 05 02:44:03.167 INFO [stderr]    |       ^^^^^^^ help: consider using `_integer` instead
Dec 05 02:44:03.167 INFO [stderr]    |
Dec 05 02:44:03.167 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:44:03.167 INFO [stderr] 
Dec 05 02:44:03.175 INFO [stderr] warning: field is never used: `y`
Dec 05 02:44:03.175 INFO [stderr]  --> src/generics.rs:3:3
Dec 05 02:44:03.175 INFO [stderr]   |
Dec 05 02:44:03.175 INFO [stderr] 3 |   y: T
Dec 05 02:44:03.175 INFO [stderr]   |   ^^^^
Dec 05 02:44:03.184 INFO [stderr]   |
Dec 05 02:44:03.184 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 02:44:03.184 INFO [stderr] 
Dec 05 02:44:04.475 INFO [stderr] warning: unused variable: `six`
Dec 05 02:44:04.475 INFO [stderr]   --> src/enum.rs:20:7
Dec 05 02:44:04.475 INFO [stderr]    |
Dec 05 02:44:04.475 INFO [stderr] 20 |   let six = IpAddrKind::V6;
Dec 05 02:44:04.475 INFO [stderr]    |       ^^^ help: consider using `_six` instead
Dec 05 02:44:04.475 INFO [stderr]    |
Dec 05 02:44:04.475 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:44:04.475 INFO [stderr] 
Dec 05 02:44:04.475 INFO [stderr] warning: unused variable: `home`
Dec 05 02:44:04.475 INFO [stderr]   --> src/enum.rs:27:7
Dec 05 02:44:04.475 INFO [stderr]    |
Dec 05 02:44:04.475 INFO [stderr] 27 |   let home = IpAddr {
Dec 05 02:44:04.475 INFO [stderr]    |       ^^^^ help: consider using `_home` instead
Dec 05 02:44:04.475 INFO [stderr] 
Dec 05 02:44:04.475 INFO [stderr] warning: unused variable: `op_type`
Dec 05 02:44:04.475 INFO [stderr]   --> src/enum.rs:35:10
Dec 05 02:44:04.475 INFO [stderr]    |
Dec 05 02:44:04.475 INFO [stderr] 35 | fn route(op_type: IpAddrKind) { }
Dec 05 02:44:04.475 INFO [stderr]    |          ^^^^^^^ help: consider using `_op_type` instead
Dec 05 02:44:04.475 INFO [stderr] 
Dec 05 02:44:04.515 INFO [stderr] warning: field is never used: `kind`
Dec 05 02:44:04.515 INFO [stderr]   --> src/enum.rs:14:3
Dec 05 02:44:04.515 INFO [stderr]    |
Dec 05 02:44:04.515 INFO [stderr] 14 |   kind: IpAddrKind,
Dec 05 02:44:04.515 INFO [stderr]    |   ^^^^^^^^^^^^^^^^
Dec 05 02:44:04.515 INFO [stderr]    |
Dec 05 02:44:04.515 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 02:44:04.515 INFO [stderr] 
Dec 05 02:44:04.515 INFO [stderr] warning: field is never used: `address`
Dec 05 02:44:04.515 INFO [stderr]   --> src/enum.rs:15:3
Dec 05 02:44:04.515 INFO [stderr]    |
Dec 05 02:44:04.515 INFO [stderr] 15 |   address: String
Dec 05 02:44:04.515 INFO [stderr]    |   ^^^^^^^^^^^^^^^
Dec 05 02:44:04.515 INFO [stderr] 
Dec 05 02:44:05.123 INFO [stderr] warning: unused variable: `six`
Dec 05 02:44:05.123 INFO [stderr]   --> src/enum.rs:20:7
Dec 05 02:44:05.123 INFO [stderr]    |
Dec 05 02:44:05.123 INFO [stderr] 20 |   let six = IpAddrKind::V6;
Dec 05 02:44:05.123 INFO [stderr]    |       ^^^ help: consider using `_six` instead
Dec 05 02:44:05.123 INFO [stderr]    |
Dec 05 02:44:05.123 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:44:05.123 INFO [stderr] 
Dec 05 02:44:05.123 INFO [stderr] warning: unused variable: `home`
Dec 05 02:44:05.123 INFO [stderr]   --> src/enum.rs:27:7
Dec 05 02:44:05.123 INFO [stderr]    |
Dec 05 02:44:05.123 INFO [stderr] 27 |   let home = IpAddr {
Dec 05 02:44:05.123 INFO [stderr]    |       ^^^^ help: consider using `_home` instead
Dec 05 02:44:05.123 INFO [stderr] 
Dec 05 02:44:05.123 INFO [stderr] warning: unused variable: `op_type`
Dec 05 02:44:05.123 INFO [stderr]   --> src/enum.rs:35:10
Dec 05 02:44:05.123 INFO [stderr]    |
Dec 05 02:44:05.123 INFO [stderr] 35 | fn route(op_type: IpAddrKind) { }
Dec 05 02:44:05.123 INFO [stderr]    |          ^^^^^^^ help: consider using `_op_type` instead
Dec 05 02:44:05.123 INFO [stderr] 
Dec 05 02:44:05.147 INFO [stderr] warning: field is never used: `kind`
Dec 05 02:44:05.147 INFO [stderr]   --> src/enum.rs:14:3
Dec 05 02:44:05.147 INFO [stderr]    |
Dec 05 02:44:05.147 INFO [stderr] 14 |   kind: IpAddrKind,
Dec 05 02:44:05.147 INFO [stderr]    |   ^^^^^^^^^^^^^^^^
Dec 05 02:44:05.147 INFO [stderr]    |
Dec 05 02:44:05.147 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 02:44:05.147 INFO [stderr] 
Dec 05 02:44:05.147 INFO [stderr] warning: field is never used: `address`
Dec 05 02:44:05.147 INFO [stderr]   --> src/enum.rs:15:3
Dec 05 02:44:05.147 INFO [stderr]    |
Dec 05 02:44:05.147 INFO [stderr] 15 |   address: String
Dec 05 02:44:05.147 INFO [stderr]    |   ^^^^^^^^^^^^^^^
Dec 05 02:44:05.147 INFO [stderr] 
Dec 05 02:44:07.367 INFO [stderr] warning: variable does not need to be mutable
Dec 05 02:44:07.367 INFO [stderr]  --> src/slice.rs:2:7
Dec 05 02:44:07.367 INFO [stderr]   |
Dec 05 02:44:07.367 INFO [stderr] 2 |   let mut s = String::from("hello world");
Dec 05 02:44:07.367 INFO [stderr]   |       ----^
Dec 05 02:44:07.367 INFO [stderr]   |       |
Dec 05 02:44:07.367 INFO [stderr]   |       help: remove this `mut`
Dec 05 02:44:07.383 INFO [stderr]   |
Dec 05 02:44:07.383 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 05 02:44:07.383 INFO [stderr] 
Dec 05 02:44:08.135 INFO [stderr] warning: doc comment not used by rustdoc
Dec 05 02:44:08.135 INFO [stderr]   --> src/struct_ex.rs:17:3
Dec 05 02:44:08.135 INFO [stderr]    |
Dec 05 02:44:08.135 INFO [stderr] 17 |   ///
Dec 05 02:44:08.135 INFO [stderr]    |   ^^^
Dec 05 02:44:08.171 INFO [stderr]    |
Dec 05 02:44:08.171 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Dec 05 02:44:08.171 INFO [stderr] 
Dec 05 02:44:09.679 INFO [stderr] warning: unused import: `std::rc::Rc`
Dec 05 02:44:09.679 INFO [stderr]  --> src/shared_mem.rs:1:5
Dec 05 02:44:09.679 INFO [stderr]   |
Dec 05 02:44:09.679 INFO [stderr] 1 | use std::rc::Rc;
Dec 05 02:44:09.679 INFO [stderr]   |     ^^^^^^^^^^^
Dec 05 02:44:09.684 INFO [stderr]   |
Dec 05 02:44:09.684 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 02:44:09.684 INFO [stderr] 
Dec 05 02:44:10.126 INFO [stderr] warning: unused variable: `six`
Dec 05 02:44:10.126 INFO [stderr]   --> src/match.rs:25:7
Dec 05 02:44:10.126 INFO [stderr]    |
Dec 05 02:44:10.126 INFO [stderr] 25 |   let six = plus_one(five);
Dec 05 02:44:10.126 INFO [stderr]    |       ^^^ help: consider using `_six` instead
Dec 05 02:44:10.126 INFO [stderr]    |
Dec 05 02:44:10.126 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:44:10.126 INFO [stderr] 
Dec 05 02:44:10.126 INFO [stderr] warning: unused variable: `none`
Dec 05 02:44:10.126 INFO [stderr]   --> src/match.rs:26:7
Dec 05 02:44:10.126 INFO [stderr]    |
Dec 05 02:44:10.126 INFO [stderr] 26 |   let none = plus_one(None);
Dec 05 02:44:10.126 INFO [stderr]    |       ^^^^ help: consider using `_none` instead
Dec 05 02:44:10.126 INFO [stderr] 
Dec 05 02:44:10.128 INFO [stderr] warning: variant is never constructed: `Penny`
Dec 05 02:44:10.128 INFO [stderr]  --> src/match.rs:2:3
Dec 05 02:44:10.128 INFO [stderr]   |
Dec 05 02:44:10.128 INFO [stderr] 2 |   Penny,
Dec 05 02:44:10.128 INFO [stderr]   |   ^^^^^
Dec 05 02:44:10.128 INFO [stderr]   |
Dec 05 02:44:10.128 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 02:44:10.128 INFO [stderr] 
Dec 05 02:44:10.128 INFO [stderr] warning: variant is never constructed: `Nickel`
Dec 05 02:44:10.128 INFO [stderr]  --> src/match.rs:3:3
Dec 05 02:44:10.128 INFO [stderr]   |
Dec 05 02:44:10.128 INFO [stderr] 3 |   Nickel,
Dec 05 02:44:10.128 INFO [stderr]   |   ^^^^^^
Dec 05 02:44:10.128 INFO [stderr] 
Dec 05 02:44:10.128 INFO [stderr] warning: variant is never constructed: `Dime`
Dec 05 02:44:10.128 INFO [stderr]  --> src/match.rs:4:3
Dec 05 02:44:10.128 INFO [stderr]   |
Dec 05 02:44:10.128 INFO [stderr] 4 |   Dime,
Dec 05 02:44:10.128 INFO [stderr]   |   ^^^^
Dec 05 02:44:10.128 INFO [stderr] 
Dec 05 02:44:10.128 INFO [stderr] warning: variant is never constructed: `Alabama`
Dec 05 02:44:10.128 INFO [stderr]   --> src/match.rs:10:3
Dec 05 02:44:10.128 INFO [stderr]    |
Dec 05 02:44:10.128 INFO [stderr] 10 |   Alabama,
Dec 05 02:44:10.128 INFO [stderr]    |   ^^^^^^^
Dec 05 02:44:10.128 INFO [stderr] 
Dec 05 02:44:10.235 INFO [stderr] warning: unused import: `std::time::Duration`
Dec 05 02:44:10.235 INFO [stderr]  --> src/multiple_thread.rs:2:5
Dec 05 02:44:10.235 INFO [stderr]   |
Dec 05 02:44:10.235 INFO [stderr] 2 | use std::time::Duration;
Dec 05 02:44:10.235 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 05 02:44:10.263 INFO [stderr]   |
Dec 05 02:44:10.263 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 02:44:10.263 INFO [stderr] 
Dec 05 02:44:12.055 INFO [stderr] warning: unused variable: `s6`
Dec 05 02:44:12.055 INFO [stderr]   --> src/owner.rs:19:7
Dec 05 02:44:12.055 INFO [stderr]    |
Dec 05 02:44:12.055 INFO [stderr] 19 |   let s6 = s5;
Dec 05 02:44:12.055 INFO [stderr]    |       ^^ help: consider using `_s6` instead
Dec 05 02:44:12.063 INFO [stderr]    |
Dec 05 02:44:12.064 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:44:12.064 INFO [stderr] 
Dec 05 02:44:12.088 INFO [stderr] warning: function is never used: `gives_ownership`
Dec 05 02:44:12.088 INFO [stderr]   --> src/owner.rs:37:1
Dec 05 02:44:12.088 INFO [stderr]    |
Dec 05 02:44:12.088 INFO [stderr] 37 | fn gives_ownership() -> String {
Dec 05 02:44:12.088 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:44:12.099 INFO [stderr]    |
Dec 05 02:44:12.099 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 02:44:12.099 INFO [stderr] 
Dec 05 02:44:12.287 INFO [stderr] warning: unused variable: `s6`
Dec 05 02:44:12.287 INFO [stderr]   --> src/owner.rs:19:7
Dec 05 02:44:12.287 INFO [stderr]    |
Dec 05 02:44:12.287 INFO [stderr] 19 |   let s6 = s5;
Dec 05 02:44:12.287 INFO [stderr]    |       ^^ help: consider using `_s6` instead
Dec 05 02:44:12.291 INFO [stderr]    |
Dec 05 02:44:12.291 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:44:12.291 INFO [stderr] 
Dec 05 02:44:12.343 INFO [stderr] warning: function is never used: `gives_ownership`
Dec 05 02:44:12.343 INFO [stderr]   --> src/owner.rs:37:1
Dec 05 02:44:12.343 INFO [stderr]    |
Dec 05 02:44:12.343 INFO [stderr] 37 | fn gives_ownership() -> String {
Dec 05 02:44:12.343 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:44:12.343 INFO [stderr]    |
Dec 05 02:44:12.343 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 02:44:12.343 INFO [stderr] 
Dec 05 02:44:12.371 INFO [stderr] error[E0601]: `main` function not found in crate `refcall`
Dec 05 02:44:12.371 INFO [stderr]   |
Dec 05 02:44:12.371 INFO [stderr]   = note: consider adding a `main` function to `src/refcall.rs`
Dec 05 02:44:12.371 INFO [stderr] 
Dec 05 02:44:12.435 INFO [stderr] error: aborting due to previous error
Dec 05 02:44:12.435 INFO [stderr] 
Dec 05 02:44:12.435 INFO [stderr] For more information about this error, try `rustc --explain E0601`.
Dec 05 02:44:12.455 INFO [stderr] error: Could not compile `rust_learning`.
Dec 05 02:44:12.455 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 05 02:44:12.813 INFO [stderr] warning: unused variable: `six`
Dec 05 02:44:12.813 INFO [stderr]   --> src/match.rs:25:7
Dec 05 02:44:12.813 INFO [stderr]    |
Dec 05 02:44:12.813 INFO [stderr] 25 |   let six = plus_one(five);
Dec 05 02:44:12.813 INFO [stderr]    |       ^^^ help: consider using `_six` instead
Dec 05 02:44:12.827 INFO [stderr]    |
Dec 05 02:44:12.827 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:44:12.827 INFO [stderr] 
Dec 05 02:44:12.827 INFO [stderr] warning: unused variable: `none`
Dec 05 02:44:12.827 INFO [stderr]   --> src/match.rs:26:7
Dec 05 02:44:12.827 INFO [stderr]    |
Dec 05 02:44:12.827 INFO [stderr] 26 |   let none = plus_one(None);
Dec 05 02:44:12.827 INFO [stderr]    |       ^^^^ help: consider using `_none` instead
Dec 05 02:44:12.827 INFO [stderr] 
Dec 05 02:44:12.859 INFO [stderr] warning: variant is never constructed: `Penny`
Dec 05 02:44:12.859 INFO [stderr]  --> src/match.rs:2:3
Dec 05 02:44:12.859 INFO [stderr]   |
Dec 05 02:44:12.859 INFO [stderr] 2 |   Penny,
Dec 05 02:44:12.859 INFO [stderr]   |   ^^^^^
Dec 05 02:44:12.859 INFO [stderr]   |
Dec 05 02:44:12.859 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 02:44:12.859 INFO [stderr] 
Dec 05 02:44:12.859 INFO [stderr] warning: variant is never constructed: `Nickel`
Dec 05 02:44:12.859 INFO [stderr]  --> src/match.rs:3:3
Dec 05 02:44:12.859 INFO [stderr]   |
Dec 05 02:44:12.859 INFO [stderr] 3 |   Nickel,
Dec 05 02:44:12.859 INFO [stderr]   |   ^^^^^^
Dec 05 02:44:12.859 INFO [stderr] 
Dec 05 02:44:12.859 INFO [stderr] warning: variant is never constructed: `Dime`
Dec 05 02:44:12.859 INFO [stderr]  --> src/match.rs:4:3
Dec 05 02:44:12.859 INFO [stderr]   |
Dec 05 02:44:12.859 INFO [stderr] 4 |   Dime,
Dec 05 02:44:12.859 INFO [stderr]   |   ^^^^
Dec 05 02:44:12.859 INFO [stderr] 
Dec 05 02:44:12.859 INFO [stderr] warning: variant is never constructed: `Alabama`
Dec 05 02:44:12.859 INFO [stderr]   --> src/match.rs:10:3
Dec 05 02:44:12.859 INFO [stderr]    |
Dec 05 02:44:12.859 INFO [stderr] 10 |   Alabama,
Dec 05 02:44:12.859 INFO [stderr]    |   ^^^^^^^
Dec 05 02:44:12.859 INFO [stderr] 
Dec 05 02:44:13.260 INFO [stderr] warning: unused variable: `post`
Dec 05 02:44:13.260 INFO [stderr]   --> src/blog.rs:30:25
Dec 05 02:44:13.260 INFO [stderr]    |
Dec 05 02:44:13.260 INFO [stderr] 30 |   fn content<'a>(&self, post: &'a Post) -> &'a str {
Dec 05 02:44:13.260 INFO [stderr]    |                         ^^^^ help: consider using `_post` instead
Dec 05 02:44:13.260 INFO [stderr]    |
Dec 05 02:44:13.260 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:44:13.260 INFO [stderr] 
Dec 05 02:44:13.261 INFO [stderr] warning: variable does not need to be mutable
Dec 05 02:44:13.261 INFO [stderr]  --> src/slice.rs:2:7
Dec 05 02:44:13.261 INFO [stderr]   |
Dec 05 02:44:13.261 INFO [stderr] 2 |   let mut s = String::from("hello world");
Dec 05 02:44:13.261 INFO [stderr]   |       ----^
Dec 05 02:44:13.261 INFO [stderr]   |       |
Dec 05 02:44:13.261 INFO [stderr]   |       help: remove this `mut`
Dec 05 02:44:13.261 INFO [stderr]   |
Dec 05 02:44:13.261 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 05 02:44:13.261 INFO [stderr] 
Dec 05 02:44:13.523 INFO [stderr] warning: variable `count` is assigned to, but never used
Dec 05 02:44:13.523 INFO [stderr]   --> src/iflet.rs:20:11
Dec 05 02:44:13.523 INFO [stderr]    |
Dec 05 02:44:13.523 INFO [stderr] 20 |   let mut count = 0;
Dec 05 02:44:13.523 INFO [stderr]    |           ^^^^^
Dec 05 02:44:13.527 INFO [stderr]    |
Dec 05 02:44:13.527 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:44:13.527 INFO [stderr]    = note: consider using `_count` instead
Dec 05 02:44:13.527 INFO [stderr] 
Dec 05 02:44:13.527 INFO [stderr] warning: value assigned to `count` is never read
Dec 05 02:44:13.527 INFO [stderr]   --> src/iflet.rs:25:5
Dec 05 02:44:13.527 INFO [stderr]    |
Dec 05 02:44:13.527 INFO [stderr] 25 |     count += 1;
Dec 05 02:44:13.527 INFO [stderr]    |     ^^^^^
Dec 05 02:44:13.528 INFO [stderr]    |
Dec 05 02:44:13.528 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 05 02:44:13.528 INFO [stderr] 
Dec 05 02:44:13.532 INFO [stderr] warning: variant is never constructed: `Penny`
Dec 05 02:44:13.532 INFO [stderr]  --> src/iflet.rs:2:3
Dec 05 02:44:13.532 INFO [stderr]   |
Dec 05 02:44:13.532 INFO [stderr] 2 |   Penny,
Dec 05 02:44:13.532 INFO [stderr]   |   ^^^^^
Dec 05 02:44:13.532 INFO [stderr]   |
Dec 05 02:44:13.533 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 02:44:13.533 INFO [stderr] 
Dec 05 02:44:13.533 INFO [stderr] warning: variant is never constructed: `Nickel`
Dec 05 02:44:13.533 INFO [stderr]  --> src/iflet.rs:3:3
Dec 05 02:44:13.533 INFO [stderr]   |
Dec 05 02:44:13.533 INFO [stderr] 3 |   Nickel,
Dec 05 02:44:13.533 INFO [stderr]   |   ^^^^^^
Dec 05 02:44:13.533 INFO [stderr] 
Dec 05 02:44:13.539 INFO [stderr] warning: variant is never constructed: `Dime`
Dec 05 02:44:13.539 INFO [stderr]  --> src/iflet.rs:4:3
Dec 05 02:44:13.539 INFO [stderr]   |
Dec 05 02:44:13.539 INFO [stderr] 4 |   Dime,
Dec 05 02:44:13.539 INFO [stderr]   |   ^^^^
Dec 05 02:44:13.539 INFO [stderr] 
Dec 05 02:44:13.539 INFO [stderr] warning: variant is never constructed: `Alabama`
Dec 05 02:44:13.539 INFO [stderr]   --> src/iflet.rs:10:3
Dec 05 02:44:13.539 INFO [stderr]    |
Dec 05 02:44:13.539 INFO [stderr] 10 |   Alabama,
Dec 05 02:44:13.539 INFO [stderr]    |   ^^^^^^^
Dec 05 02:44:13.539 INFO [stderr] 
Dec 05 02:44:13.903 INFO [stderr] warning: variable `count` is assigned to, but never used
Dec 05 02:44:13.903 INFO [stderr]   --> src/iflet.rs:20:11
Dec 05 02:44:13.903 INFO [stderr]    |
Dec 05 02:44:13.903 INFO [stderr] 20 |   let mut count = 0;
Dec 05 02:44:13.903 INFO [stderr]    |           ^^^^^
Dec 05 02:44:13.903 INFO [stderr]    |
Dec 05 02:44:13.903 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:44:13.903 INFO [stderr]    = note: consider using `_count` instead
Dec 05 02:44:13.903 INFO [stderr] 
Dec 05 02:44:13.903 INFO [stderr] warning: value assigned to `count` is never read
Dec 05 02:44:13.903 INFO [stderr]   --> src/iflet.rs:25:5
Dec 05 02:44:13.903 INFO [stderr]    |
Dec 05 02:44:13.903 INFO [stderr] 25 |     count += 1;
Dec 05 02:44:13.903 INFO [stderr]    |     ^^^^^
Dec 05 02:44:13.903 INFO [stderr]    |
Dec 05 02:44:13.903 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 05 02:44:13.903 INFO [stderr] 
Dec 05 02:44:13.903 INFO [stderr] warning: variant is never constructed: `Penny`
Dec 05 02:44:13.903 INFO [stderr]  --> src/iflet.rs:2:3
Dec 05 02:44:13.903 INFO [stderr]   |
Dec 05 02:44:13.903 INFO [stderr] 2 |   Penny,
Dec 05 02:44:13.903 INFO [stderr]   |   ^^^^^
Dec 05 02:44:13.903 INFO [stderr]   |
Dec 05 02:44:13.903 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 02:44:13.903 INFO [stderr] 
Dec 05 02:44:13.903 INFO [stderr] warning: variant is never constructed: `Nickel`
Dec 05 02:44:13.906 INFO [stderr]  --> src/iflet.rs:3:3
Dec 05 02:44:13.907 INFO [stderr]   |
Dec 05 02:44:13.907 INFO [stderr] 3 |   Nickel,
Dec 05 02:44:13.907 INFO [stderr]   |   ^^^^^^
Dec 05 02:44:13.907 INFO [stderr] 
Dec 05 02:44:13.907 INFO [stderr] warning: variant is never constructed: `Dime`
Dec 05 02:44:13.907 INFO [stderr]  --> src/iflet.rs:4:3
Dec 05 02:44:13.907 INFO [stderr]   |
Dec 05 02:44:13.907 INFO [stderr] 4 |   Dime,
Dec 05 02:44:13.907 INFO [stderr]   |   ^^^^
Dec 05 02:44:13.907 INFO [stderr] 
Dec 05 02:44:13.907 INFO [stderr] warning: variant is never constructed: `Alabama`
Dec 05 02:44:13.907 INFO [stderr]   --> src/iflet.rs:10:3
Dec 05 02:44:13.907 INFO [stderr]    |
Dec 05 02:44:13.907 INFO [stderr] 10 |   Alabama,
Dec 05 02:44:13.907 INFO [stderr]    |   ^^^^^^^
Dec 05 02:44:13.907 INFO [stderr] 
Dec 05 02:44:13.924 INFO [stderr] error: build failed
Dec 05 02:44:13.931 INFO [stderr] su: No module specific data is present
Dec 05 02:44:14.519 INFO running `"docker" "inspect" "3f7e8976626b031b916235fb9aa9dfabda40c4c775f600adae77f3826904ce1b"`
Dec 05 02:44:14.833 INFO running `"docker" "rm" "-f" "3f7e8976626b031b916235fb9aa9dfabda40c4c775f600adae77f3826904ce1b"`
Dec 05 02:44:15.139 INFO [stdout] 3f7e8976626b031b916235fb9aa9dfabda40c4c775f600adae77f3826904ce1b