Nov 30 11:19:31.111 INFO checking EdenCao/rust_learning against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 11:19:31.111 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-5/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 30 11:19:31.725 INFO [stdout] b3e93ddddc7f8d09aa28d83fa8d22afa12482d0e74796ecfa61c521d3fe02357
Nov 30 11:19:31.727 INFO running `"docker" "start" "-a" "b3e93ddddc7f8d09aa28d83fa8d22afa12482d0e74796ecfa61c521d3fe02357"`
Nov 30 11:19:32.284 INFO [stderr] usermod: no changes
Nov 30 11:19:32.441 INFO [stderr]     Checking rust_learning v0.1.0 (/source)
Nov 30 11:19:32.935 INFO [stderr] warning: unused variable: `post`
Nov 30 11:19:32.935 INFO [stderr]   --> src/blog.rs:30:25
Nov 30 11:19:32.935 INFO [stderr]    |
Nov 30 11:19:32.935 INFO [stderr] 30 |   fn content<'a>(&self, post: &'a Post) -> &'a str {
Nov 30 11:19:32.935 INFO [stderr]    |                         ^^^^ help: consider using `_post` instead
Nov 30 11:19:32.935 INFO [stderr]    |
Nov 30 11:19:32.935 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 11:19:32.935 INFO [stderr] 
Nov 30 11:19:33.006 INFO [stderr] warning: variable `count` is assigned to, but never used
Nov 30 11:19:33.006 INFO [stderr]   --> src/iflet.rs:20:11
Nov 30 11:19:33.006 INFO [stderr]    |
Nov 30 11:19:33.006 INFO [stderr] 20 |   let mut count = 0;
Nov 30 11:19:33.006 INFO [stderr]    |           ^^^^^
Nov 30 11:19:33.006 INFO [stderr]    |
Nov 30 11:19:33.007 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 11:19:33.007 INFO [stderr]    = note: consider using `_count` instead
Nov 30 11:19:33.007 INFO [stderr] 
Nov 30 11:19:33.007 INFO [stderr] warning: value assigned to `count` is never read
Nov 30 11:19:33.007 INFO [stderr]   --> src/iflet.rs:25:5
Nov 30 11:19:33.008 INFO [stderr]    |
Nov 30 11:19:33.008 INFO [stderr] 25 |     count += 1;
Nov 30 11:19:33.008 INFO [stderr]    |     ^^^^^
Nov 30 11:19:33.008 INFO [stderr]    |
Nov 30 11:19:33.008 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 30 11:19:33.008 INFO [stderr] 
Nov 30 11:19:33.012 INFO [stderr] warning: variant is never constructed: `Penny`
Nov 30 11:19:33.012 INFO [stderr]  --> src/iflet.rs:2:3
Nov 30 11:19:33.012 INFO [stderr]   |
Nov 30 11:19:33.012 INFO [stderr] 2 |   Penny,
Nov 30 11:19:33.013 INFO [stderr]   |   ^^^^^
Nov 30 11:19:33.013 INFO [stderr]   |
Nov 30 11:19:33.013 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 11:19:33.013 INFO [stderr] 
Nov 30 11:19:33.013 INFO [stderr] warning: variant is never constructed: `Nickel`
Nov 30 11:19:33.013 INFO [stderr]  --> src/iflet.rs:3:3
Nov 30 11:19:33.014 INFO [stderr]   |
Nov 30 11:19:33.014 INFO [stderr] 3 |   Nickel,
Nov 30 11:19:33.014 INFO [stderr]   |   ^^^^^^
Nov 30 11:19:33.014 INFO [stderr] 
Nov 30 11:19:33.014 INFO [stderr] warning: variant is never constructed: `Dime`
Nov 30 11:19:33.015 INFO [stderr]  --> src/iflet.rs:4:3
Nov 30 11:19:33.015 INFO [stderr]   |
Nov 30 11:19:33.015 INFO [stderr] 4 |   Dime,
Nov 30 11:19:33.015 INFO [stderr]   |   ^^^^
Nov 30 11:19:33.015 INFO [stderr] 
Nov 30 11:19:33.015 INFO [stderr] warning: variant is never constructed: `Alabama`
Nov 30 11:19:33.016 INFO [stderr]   --> src/iflet.rs:10:3
Nov 30 11:19:33.016 INFO [stderr]    |
Nov 30 11:19:33.016 INFO [stderr] 10 |   Alabama,
Nov 30 11:19:33.016 INFO [stderr]    |   ^^^^^^^
Nov 30 11:19:33.016 INFO [stderr] 
Nov 30 11:19:33.172 INFO [stderr] warning: unused import: `std::time::Duration`
Nov 30 11:19:33.172 INFO [stderr]  --> src/multiple_thread.rs:2:5
Nov 30 11:19:33.172 INFO [stderr]   |
Nov 30 11:19:33.172 INFO [stderr] 2 | use std::time::Duration;
Nov 30 11:19:33.172 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Nov 30 11:19:33.172 INFO [stderr]   |
Nov 30 11:19:33.172 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 11:19:33.172 INFO [stderr] 
Nov 30 11:19:33.206 INFO [stderr] warning: unused import: `std::rc::Rc`
Nov 30 11:19:33.206 INFO [stderr]  --> src/shared_mem.rs:1:5
Nov 30 11:19:33.206 INFO [stderr]   |
Nov 30 11:19:33.206 INFO [stderr] 1 | use std::rc::Rc;
Nov 30 11:19:33.207 INFO [stderr]   |     ^^^^^^^^^^^
Nov 30 11:19:33.207 INFO [stderr]   |
Nov 30 11:19:33.207 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 11:19:33.207 INFO [stderr] 
Nov 30 11:19:33.490 INFO [stderr] warning: variable `count` is assigned to, but never used
Nov 30 11:19:33.490 INFO [stderr]   --> src/iflet.rs:20:11
Nov 30 11:19:33.490 INFO [stderr]    |
Nov 30 11:19:33.490 INFO [stderr] 20 |   let mut count = 0;
Nov 30 11:19:33.490 INFO [stderr]    |           ^^^^^
Nov 30 11:19:33.494 INFO [stderr]    |
Nov 30 11:19:33.494 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 11:19:33.494 INFO [stderr]    = note: consider using `_count` instead
Nov 30 11:19:33.494 INFO [stderr] 
Nov 30 11:19:33.494 INFO [stderr] warning: value assigned to `count` is never read
Nov 30 11:19:33.494 INFO [stderr]   --> src/iflet.rs:25:5
Nov 30 11:19:33.494 INFO [stderr]    |
Nov 30 11:19:33.494 INFO [stderr] 25 |     count += 1;
Nov 30 11:19:33.494 INFO [stderr]    |     ^^^^^
Nov 30 11:19:33.494 INFO [stderr]    |
Nov 30 11:19:33.494 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 30 11:19:33.494 INFO [stderr] 
Nov 30 11:19:33.496 INFO [stderr] warning: variant is never constructed: `Penny`
Nov 30 11:19:33.496 INFO [stderr]  --> src/iflet.rs:2:3
Nov 30 11:19:33.496 INFO [stderr]   |
Nov 30 11:19:33.496 INFO [stderr] 2 |   Penny,
Nov 30 11:19:33.496 INFO [stderr]   |   ^^^^^
Nov 30 11:19:33.505 INFO [stderr]   |
Nov 30 11:19:33.505 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 11:19:33.505 INFO [stderr] 
Nov 30 11:19:33.505 INFO [stderr] warning: variant is never constructed: `Nickel`
Nov 30 11:19:33.505 INFO [stderr]  --> src/iflet.rs:3:3
Nov 30 11:19:33.505 INFO [stderr]   |
Nov 30 11:19:33.505 INFO [stderr] 3 |   Nickel,
Nov 30 11:19:33.505 INFO [stderr]   |   ^^^^^^
Nov 30 11:19:33.505 INFO [stderr] 
Nov 30 11:19:33.505 INFO [stderr] warning: variant is never constructed: `Dime`
Nov 30 11:19:33.505 INFO [stderr]  --> src/iflet.rs:4:3
Nov 30 11:19:33.505 INFO [stderr]   |
Nov 30 11:19:33.505 INFO [stderr] 4 |   Dime,
Nov 30 11:19:33.505 INFO [stderr]   |   ^^^^
Nov 30 11:19:33.505 INFO [stderr] 
Nov 30 11:19:33.505 INFO [stderr] warning: variant is never constructed: `Alabama`
Nov 30 11:19:33.505 INFO [stderr]   --> src/iflet.rs:10:3
Nov 30 11:19:33.505 INFO [stderr]    |
Nov 30 11:19:33.505 INFO [stderr] 10 |   Alabama,
Nov 30 11:19:33.505 INFO [stderr]    |   ^^^^^^^
Nov 30 11:19:33.505 INFO [stderr] 
Nov 30 11:19:33.807 INFO [stderr] warning: doc comment not used by rustdoc
Nov 30 11:19:33.807 INFO [stderr]   --> src/struct_ex.rs:17:3
Nov 30 11:19:33.807 INFO [stderr]    |
Nov 30 11:19:33.807 INFO [stderr] 17 |   ///
Nov 30 11:19:33.807 INFO [stderr]    |   ^^^
Nov 30 11:19:33.807 INFO [stderr]    |
Nov 30 11:19:33.807 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Nov 30 11:19:33.807 INFO [stderr] 
Nov 30 11:19:33.860 INFO [stderr] warning: unused variable: `six`
Nov 30 11:19:33.860 INFO [stderr]   --> src/enum.rs:20:7
Nov 30 11:19:33.861 INFO [stderr]    |
Nov 30 11:19:33.861 INFO [stderr] 20 |   let six = IpAddrKind::V6;
Nov 30 11:19:33.861 INFO [stderr]    |       ^^^ help: consider using `_six` instead
Nov 30 11:19:33.861 INFO [stderr]    |
Nov 30 11:19:33.861 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 11:19:33.861 INFO [stderr] 
Nov 30 11:19:33.861 INFO [stderr] warning: unused variable: `home`
Nov 30 11:19:33.861 INFO [stderr]   --> src/enum.rs:27:7
Nov 30 11:19:33.861 INFO [stderr]    |
Nov 30 11:19:33.861 INFO [stderr] 27 |   let home = IpAddr {
Nov 30 11:19:33.861 INFO [stderr]    |       ^^^^ help: consider using `_home` instead
Nov 30 11:19:33.861 INFO [stderr] 
Nov 30 11:19:33.864 INFO [stderr] warning: unused variable: `op_type`
Nov 30 11:19:33.864 INFO [stderr]   --> src/enum.rs:35:10
Nov 30 11:19:33.864 INFO [stderr]    |
Nov 30 11:19:33.864 INFO [stderr] 35 | fn route(op_type: IpAddrKind) { }
Nov 30 11:19:33.864 INFO [stderr]    |          ^^^^^^^ help: consider using `_op_type` instead
Nov 30 11:19:33.864 INFO [stderr] 
Nov 30 11:19:33.866 INFO [stderr] warning: field is never used: `kind`
Nov 30 11:19:33.866 INFO [stderr]   --> src/enum.rs:14:3
Nov 30 11:19:33.866 INFO [stderr]    |
Nov 30 11:19:33.866 INFO [stderr] 14 |   kind: IpAddrKind,
Nov 30 11:19:33.866 INFO [stderr]    |   ^^^^^^^^^^^^^^^^
Nov 30 11:19:33.866 INFO [stderr]    |
Nov 30 11:19:33.866 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 11:19:33.866 INFO [stderr] 
Nov 30 11:19:33.866 INFO [stderr] warning: field is never used: `address`
Nov 30 11:19:33.866 INFO [stderr]   --> src/enum.rs:15:3
Nov 30 11:19:33.866 INFO [stderr]    |
Nov 30 11:19:33.866 INFO [stderr] 15 |   address: String
Nov 30 11:19:33.866 INFO [stderr]    |   ^^^^^^^^^^^^^^^
Nov 30 11:19:33.866 INFO [stderr] 
Nov 30 11:19:34.004 INFO [stderr] warning: doc comment not used by rustdoc
Nov 30 11:19:34.004 INFO [stderr]   --> src/struct_ex.rs:17:3
Nov 30 11:19:34.004 INFO [stderr]    |
Nov 30 11:19:34.005 INFO [stderr] 17 |   ///
Nov 30 11:19:34.005 INFO [stderr]    |   ^^^
Nov 30 11:19:34.005 INFO [stderr]    |
Nov 30 11:19:34.005 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Nov 30 11:19:34.006 INFO [stderr] 
Nov 30 11:19:34.427 INFO [stderr] warning: unused import: `std::time::Duration`
Nov 30 11:19:34.427 INFO [stderr]  --> src/multiple_thread.rs:2:5
Nov 30 11:19:34.427 INFO [stderr]   |
Nov 30 11:19:34.428 INFO [stderr] 2 | use std::time::Duration;
Nov 30 11:19:34.428 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Nov 30 11:19:34.428 INFO [stderr]   |
Nov 30 11:19:34.428 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 11:19:34.428 INFO [stderr] 
Nov 30 11:19:34.551 INFO [stderr] warning: variable does not need to be mutable
Nov 30 11:19:34.552 INFO [stderr]  --> src/slice.rs:2:7
Nov 30 11:19:34.552 INFO [stderr]   |
Nov 30 11:19:34.552 INFO [stderr] 2 |   let mut s = String::from("hello world");
Nov 30 11:19:34.552 INFO [stderr]   |       ----^
Nov 30 11:19:34.553 INFO [stderr]   |       |
Nov 30 11:19:34.553 INFO [stderr]   |       help: remove this `mut`
Nov 30 11:19:34.553 INFO [stderr]   |
Nov 30 11:19:34.553 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Nov 30 11:19:34.553 INFO [stderr] 
Nov 30 11:19:34.561 INFO [stderr] warning: unused variable: `user2`
Nov 30 11:19:34.561 INFO [stderr]   --> src/struct.rs:14:7
Nov 30 11:19:34.561 INFO [stderr]    |
Nov 30 11:19:34.561 INFO [stderr] 14 |   let user2 = User {
Nov 30 11:19:34.561 INFO [stderr]    |       ^^^^^ help: consider using `_user2` instead
Nov 30 11:19:34.561 INFO [stderr]    |
Nov 30 11:19:34.561 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 11:19:34.561 INFO [stderr] 
Nov 30 11:19:34.561 INFO [stderr] warning: unused variable: `black`
Nov 30 11:19:34.561 INFO [stderr]   --> src/struct.rs:20:7
Nov 30 11:19:34.561 INFO [stderr]    |
Nov 30 11:19:34.561 INFO [stderr] 20 |   let black = Color(0, 0, 0);
Nov 30 11:19:34.561 INFO [stderr]    |       ^^^^^ help: consider using `_black` instead
Nov 30 11:19:34.561 INFO [stderr] 
Nov 30 11:19:34.563 INFO [stderr] warning: field is never used: `username`
Nov 30 11:19:34.563 INFO [stderr]  --> src/struct.rs:2:3
Nov 30 11:19:34.563 INFO [stderr]   |
Nov 30 11:19:34.563 INFO [stderr] 2 |   username: String,
Nov 30 11:19:34.563 INFO [stderr]   |   ^^^^^^^^^^^^^^^^
Nov 30 11:19:34.563 INFO [stderr]   |
Nov 30 11:19:34.564 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 11:19:34.564 INFO [stderr] 
Nov 30 11:19:34.564 INFO [stderr] warning: field is never used: `email`
Nov 30 11:19:34.564 INFO [stderr]  --> src/struct.rs:3:3
Nov 30 11:19:34.564 INFO [stderr]   |
Nov 30 11:19:34.564 INFO [stderr] 3 |   email: String,
Nov 30 11:19:34.564 INFO [stderr]   |   ^^^^^^^^^^^^^
Nov 30 11:19:34.564 INFO [stderr] 
Nov 30 11:19:34.564 INFO [stderr] warning: field is never used: `sign_in_count`
Nov 30 11:19:34.564 INFO [stderr]  --> src/struct.rs:4:3
Nov 30 11:19:34.564 INFO [stderr]   |
Nov 30 11:19:34.564 INFO [stderr] 4 |   sign_in_count: u64,
Nov 30 11:19:34.564 INFO [stderr]   |   ^^^^^^^^^^^^^^^^^^
Nov 30 11:19:34.564 INFO [stderr] 
Nov 30 11:19:34.564 INFO [stderr] warning: field is never used: `active`
Nov 30 11:19:34.564 INFO [stderr]  --> src/struct.rs:5:3
Nov 30 11:19:34.564 INFO [stderr]   |
Nov 30 11:19:34.564 INFO [stderr] 5 |   active: bool
Nov 30 11:19:34.564 INFO [stderr]   |   ^^^^^^^^^^^^
Nov 30 11:19:34.564 INFO [stderr] 
Nov 30 11:19:34.668 INFO [stderr] warning: field is never used: `query`
Nov 30 11:19:34.668 INFO [stderr]   --> src/read.rs:27:5
Nov 30 11:19:34.668 INFO [stderr]    |
Nov 30 11:19:34.668 INFO [stderr] 27 |     query: String,
Nov 30 11:19:34.668 INFO [stderr]    |     ^^^^^^^^^^^^^
Nov 30 11:19:34.668 INFO [stderr]    |
Nov 30 11:19:34.668 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 11:19:34.668 INFO [stderr] 
Nov 30 11:19:34.669 INFO [stderr] warning: function is never used: `search_case_insensitive`
Nov 30 11:19:34.669 INFO [stderr]   --> src/read.rs:82:1
Nov 30 11:19:34.669 INFO [stderr]    |
Nov 30 11:19:34.669 INFO [stderr] 82 | fn search_case_insensitive<'a>(query: &str, contents: &'a str) -> Vec<&'a str> {
Nov 30 11:19:34.669 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:19:34.669 INFO [stderr] 
Nov 30 11:19:34.808 INFO [stderr] warning: unused variable: `s6`
Nov 30 11:19:34.809 INFO [stderr]   --> src/owner.rs:19:7
Nov 30 11:19:34.809 INFO [stderr]    |
Nov 30 11:19:34.809 INFO [stderr] 19 |   let s6 = s5;
Nov 30 11:19:34.809 INFO [stderr]    |       ^^ help: consider using `_s6` instead
Nov 30 11:19:34.809 INFO [stderr]    |
Nov 30 11:19:34.809 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 11:19:34.809 INFO [stderr] 
Nov 30 11:19:34.809 INFO [stderr] warning: function is never used: `gives_ownership`
Nov 30 11:19:34.809 INFO [stderr]   --> src/owner.rs:37:1
Nov 30 11:19:34.809 INFO [stderr]    |
Nov 30 11:19:34.809 INFO [stderr] 37 | fn gives_ownership() -> String {
Nov 30 11:19:34.809 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:19:34.809 INFO [stderr]    |
Nov 30 11:19:34.809 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 11:19:34.809 INFO [stderr] 
Nov 30 11:19:35.276 INFO [stderr] warning: unused variable: `integer`
Nov 30 11:19:35.276 INFO [stderr]   --> src/generics.rs:14:7
Nov 30 11:19:35.276 INFO [stderr]    |
Nov 30 11:19:35.276 INFO [stderr] 14 |   let integer = Point {
Nov 30 11:19:35.276 INFO [stderr]    |       ^^^^^^^ help: consider using `_integer` instead
Nov 30 11:19:35.276 INFO [stderr]    |
Nov 30 11:19:35.276 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 11:19:35.276 INFO [stderr] 
Nov 30 11:19:35.280 INFO [stderr] warning: field is never used: `y`
Nov 30 11:19:35.282 INFO [stderr]  --> src/generics.rs:3:3
Nov 30 11:19:35.282 INFO [stderr]   |
Nov 30 11:19:35.282 INFO [stderr] 3 |   y: T
Nov 30 11:19:35.282 INFO [stderr]   |   ^^^^
Nov 30 11:19:35.282 INFO [stderr]   |
Nov 30 11:19:35.282 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 11:19:35.282 INFO [stderr] 
Nov 30 11:19:36.029 INFO [stderr] warning: unused variable: `six`
Nov 30 11:19:36.029 INFO [stderr]   --> src/match.rs:25:7
Nov 30 11:19:36.029 INFO [stderr]    |
Nov 30 11:19:36.029 INFO [stderr] 25 |   let six = plus_one(five);
Nov 30 11:19:36.029 INFO [stderr]    |       ^^^ help: consider using `_six` instead
Nov 30 11:19:36.029 INFO [stderr]    |
Nov 30 11:19:36.029 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 11:19:36.029 INFO [stderr] 
Nov 30 11:19:36.029 INFO [stderr] warning: unused variable: `none`
Nov 30 11:19:36.029 INFO [stderr]   --> src/match.rs:26:7
Nov 30 11:19:36.029 INFO [stderr]    |
Nov 30 11:19:36.029 INFO [stderr] 26 |   let none = plus_one(None);
Nov 30 11:19:36.029 INFO [stderr]    |       ^^^^ help: consider using `_none` instead
Nov 30 11:19:36.029 INFO [stderr] 
Nov 30 11:19:36.034 INFO [stderr] warning: variant is never constructed: `Penny`
Nov 30 11:19:36.034 INFO [stderr]  --> src/match.rs:2:3
Nov 30 11:19:36.034 INFO [stderr]   |
Nov 30 11:19:36.034 INFO [stderr] 2 |   Penny,
Nov 30 11:19:36.034 INFO [stderr]   |   ^^^^^
Nov 30 11:19:36.034 INFO [stderr]   |
Nov 30 11:19:36.034 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 11:19:36.034 INFO [stderr] 
Nov 30 11:19:36.034 INFO [stderr] warning: variant is never constructed: `Nickel`
Nov 30 11:19:36.034 INFO [stderr]  --> src/match.rs:3:3
Nov 30 11:19:36.034 INFO [stderr]   |
Nov 30 11:19:36.034 INFO [stderr] 3 |   Nickel,
Nov 30 11:19:36.034 INFO [stderr]   |   ^^^^^^
Nov 30 11:19:36.034 INFO [stderr] 
Nov 30 11:19:36.034 INFO [stderr] warning: variant is never constructed: `Dime`
Nov 30 11:19:36.034 INFO [stderr]  --> src/match.rs:4:3
Nov 30 11:19:36.034 INFO [stderr]   |
Nov 30 11:19:36.034 INFO [stderr] 4 |   Dime,
Nov 30 11:19:36.034 INFO [stderr]   |   ^^^^
Nov 30 11:19:36.034 INFO [stderr] 
Nov 30 11:19:36.034 INFO [stderr] warning: variant is never constructed: `Alabama`
Nov 30 11:19:36.034 INFO [stderr]   --> src/match.rs:10:3
Nov 30 11:19:36.034 INFO [stderr]    |
Nov 30 11:19:36.034 INFO [stderr] 10 |   Alabama,
Nov 30 11:19:36.034 INFO [stderr]    |   ^^^^^^^
Nov 30 11:19:36.034 INFO [stderr] 
Nov 30 11:19:36.300 INFO [stderr] warning: unused variable: `post`
Nov 30 11:19:36.300 INFO [stderr]   --> src/blog.rs:30:25
Nov 30 11:19:36.300 INFO [stderr]    |
Nov 30 11:19:36.300 INFO [stderr] 30 |   fn content<'a>(&self, post: &'a Post) -> &'a str {
Nov 30 11:19:36.300 INFO [stderr]    |                         ^^^^ help: consider using `_post` instead
Nov 30 11:19:36.300 INFO [stderr]    |
Nov 30 11:19:36.304 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 11:19:36.304 INFO [stderr] 
Nov 30 11:19:36.667 INFO [stderr] warning: variable does not need to be mutable
Nov 30 11:19:36.667 INFO [stderr]  --> src/slice.rs:2:7
Nov 30 11:19:36.667 INFO [stderr]   |
Nov 30 11:19:36.667 INFO [stderr] 2 |   let mut s = String::from("hello world");
Nov 30 11:19:36.667 INFO [stderr]   |       ----^
Nov 30 11:19:36.667 INFO [stderr]   |       |
Nov 30 11:19:36.667 INFO [stderr]   |       help: remove this `mut`
Nov 30 11:19:36.667 INFO [stderr]   |
Nov 30 11:19:36.667 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Nov 30 11:19:36.667 INFO [stderr] 
Nov 30 11:19:37.732 INFO [stderr] warning: unused variable: `six`
Nov 30 11:19:37.732 INFO [stderr]   --> src/enum.rs:20:7
Nov 30 11:19:37.732 INFO [stderr]    |
Nov 30 11:19:37.732 INFO [stderr] 20 |   let six = IpAddrKind::V6;
Nov 30 11:19:37.732 INFO [stderr]    |       ^^^ help: consider using `_six` instead
Nov 30 11:19:37.732 INFO [stderr]    |
Nov 30 11:19:37.732 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 11:19:37.732 INFO [stderr] 
Nov 30 11:19:37.732 INFO [stderr] warning: unused variable: `home`
Nov 30 11:19:37.732 INFO [stderr]   --> src/enum.rs:27:7
Nov 30 11:19:37.732 INFO [stderr]    |
Nov 30 11:19:37.732 INFO [stderr] 27 |   let home = IpAddr {
Nov 30 11:19:37.732 INFO [stderr]    |       ^^^^ help: consider using `_home` instead
Nov 30 11:19:37.732 INFO [stderr] 
Nov 30 11:19:37.732 INFO [stderr] warning: unused variable: `op_type`
Nov 30 11:19:37.732 INFO [stderr]   --> src/enum.rs:35:10
Nov 30 11:19:37.732 INFO [stderr]    |
Nov 30 11:19:37.732 INFO [stderr] 35 | fn route(op_type: IpAddrKind) { }
Nov 30 11:19:37.732 INFO [stderr]    |          ^^^^^^^ help: consider using `_op_type` instead
Nov 30 11:19:37.732 INFO [stderr] 
Nov 30 11:19:37.744 INFO [stderr] warning: field is never used: `kind`
Nov 30 11:19:37.744 INFO [stderr]   --> src/enum.rs:14:3
Nov 30 11:19:37.744 INFO [stderr]    |
Nov 30 11:19:37.744 INFO [stderr] 14 |   kind: IpAddrKind,
Nov 30 11:19:37.744 INFO [stderr]    |   ^^^^^^^^^^^^^^^^
Nov 30 11:19:37.744 INFO [stderr]    |
Nov 30 11:19:37.744 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 11:19:37.744 INFO [stderr] 
Nov 30 11:19:37.744 INFO [stderr] warning: field is never used: `address`
Nov 30 11:19:37.744 INFO [stderr]   --> src/enum.rs:15:3
Nov 30 11:19:37.744 INFO [stderr]    |
Nov 30 11:19:37.744 INFO [stderr] 15 |   address: String
Nov 30 11:19:37.744 INFO [stderr]    |   ^^^^^^^^^^^^^^^
Nov 30 11:19:37.744 INFO [stderr] 
Nov 30 11:19:38.019 INFO [stderr] warning: unused import: `std::rc::Rc`
Nov 30 11:19:38.019 INFO [stderr]  --> src/shared_mem.rs:1:5
Nov 30 11:19:38.019 INFO [stderr]   |
Nov 30 11:19:38.019 INFO [stderr] 1 | use std::rc::Rc;
Nov 30 11:19:38.019 INFO [stderr]   |     ^^^^^^^^^^^
Nov 30 11:19:38.036 INFO [stderr]   |
Nov 30 11:19:38.044 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 11:19:38.044 INFO [stderr] 
Nov 30 11:19:38.255 INFO [stderr] warning: unused variable: `user2`
Nov 30 11:19:38.256 INFO [stderr]   --> src/struct.rs:14:7
Nov 30 11:19:38.256 INFO [stderr]    |
Nov 30 11:19:38.256 INFO [stderr] 14 |   let user2 = User {
Nov 30 11:19:38.257 INFO [stderr]    |       ^^^^^ help: consider using `_user2` instead
Nov 30 11:19:38.257 INFO [stderr]    |
Nov 30 11:19:38.257 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 11:19:38.258 INFO [stderr] 
Nov 30 11:19:38.258 INFO [stderr] warning: unused variable: `black`
Nov 30 11:19:38.258 INFO [stderr]   --> src/struct.rs:20:7
Nov 30 11:19:38.259 INFO [stderr]    |
Nov 30 11:19:38.259 INFO [stderr] 20 |   let black = Color(0, 0, 0);
Nov 30 11:19:38.259 INFO [stderr]    |       ^^^^^ help: consider using `_black` instead
Nov 30 11:19:38.259 INFO [stderr] 
Nov 30 11:19:38.264 INFO [stderr] warning: field is never used: `username`
Nov 30 11:19:38.264 INFO [stderr]  --> src/struct.rs:2:3
Nov 30 11:19:38.264 INFO [stderr]   |
Nov 30 11:19:38.264 INFO [stderr] 2 |   username: String,
Nov 30 11:19:38.264 INFO [stderr]   |   ^^^^^^^^^^^^^^^^
Nov 30 11:19:38.264 INFO [stderr]   |
Nov 30 11:19:38.264 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 11:19:38.264 INFO [stderr] 
Nov 30 11:19:38.265 INFO [stderr] warning: field is never used: `email`
Nov 30 11:19:38.265 INFO [stderr]  --> src/struct.rs:3:3
Nov 30 11:19:38.265 INFO [stderr]   |
Nov 30 11:19:38.265 INFO [stderr] 3 |   email: String,
Nov 30 11:19:38.265 INFO [stderr]   |   ^^^^^^^^^^^^^
Nov 30 11:19:38.265 INFO [stderr] 
Nov 30 11:19:38.265 INFO [stderr] warning: field is never used: `sign_in_count`
Nov 30 11:19:38.265 INFO [stderr]  --> src/struct.rs:4:3
Nov 30 11:19:38.265 INFO [stderr]   |
Nov 30 11:19:38.265 INFO [stderr] 4 |   sign_in_count: u64,
Nov 30 11:19:38.265 INFO [stderr]   |   ^^^^^^^^^^^^^^^^^^
Nov 30 11:19:38.265 INFO [stderr] 
Nov 30 11:19:38.265 INFO [stderr] warning: field is never used: `active`
Nov 30 11:19:38.265 INFO [stderr]  --> src/struct.rs:5:3
Nov 30 11:19:38.265 INFO [stderr]   |
Nov 30 11:19:38.265 INFO [stderr] 5 |   active: bool
Nov 30 11:19:38.265 INFO [stderr]   |   ^^^^^^^^^^^^
Nov 30 11:19:38.265 INFO [stderr] 
Nov 30 11:19:39.374 INFO [stderr] warning: unused variable: `six`
Nov 30 11:19:39.374 INFO [stderr]   --> src/match.rs:25:7
Nov 30 11:19:39.374 INFO [stderr]    |
Nov 30 11:19:39.374 INFO [stderr] 25 |   let six = plus_one(five);
Nov 30 11:19:39.374 INFO [stderr]    |       ^^^ help: consider using `_six` instead
Nov 30 11:19:39.374 INFO [stderr]    |
Nov 30 11:19:39.374 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 11:19:39.374 INFO [stderr] 
Nov 30 11:19:39.374 INFO [stderr] warning: unused variable: `none`
Nov 30 11:19:39.374 INFO [stderr]   --> src/match.rs:26:7
Nov 30 11:19:39.374 INFO [stderr]    |
Nov 30 11:19:39.374 INFO [stderr] 26 |   let none = plus_one(None);
Nov 30 11:19:39.374 INFO [stderr]    |       ^^^^ help: consider using `_none` instead
Nov 30 11:19:39.374 INFO [stderr] 
Nov 30 11:19:39.379 INFO [stderr] warning: variant is never constructed: `Penny`
Nov 30 11:19:39.380 INFO [stderr]  --> src/match.rs:2:3
Nov 30 11:19:39.380 INFO [stderr]   |
Nov 30 11:19:39.380 INFO [stderr] 2 |   Penny,
Nov 30 11:19:39.381 INFO [stderr]   |   ^^^^^
Nov 30 11:19:39.383 INFO [stderr]   |
Nov 30 11:19:39.384 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 11:19:39.384 INFO [stderr] 
Nov 30 11:19:39.385 INFO [stderr] warning: variant is never constructed: `Nickel`
Nov 30 11:19:39.385 INFO [stderr]  --> src/match.rs:3:3
Nov 30 11:19:39.385 INFO [stderr]   |
Nov 30 11:19:39.386 INFO [stderr] 3 |   Nickel,
Nov 30 11:19:39.386 INFO [stderr]   |   ^^^^^^
Nov 30 11:19:39.386 INFO [stderr] 
Nov 30 11:19:39.386 INFO [stderr] warning: variant is never constructed: `Dime`
Nov 30 11:19:39.387 INFO [stderr]  --> src/match.rs:4:3
Nov 30 11:19:39.387 INFO [stderr]   |
Nov 30 11:19:39.387 INFO [stderr] 4 |   Dime,
Nov 30 11:19:39.387 INFO [stderr]   |   ^^^^
Nov 30 11:19:39.388 INFO [stderr] 
Nov 30 11:19:39.388 INFO [stderr] warning: variant is never constructed: `Alabama`
Nov 30 11:19:39.389 INFO [stderr]   --> src/match.rs:10:3
Nov 30 11:19:39.389 INFO [stderr]    |
Nov 30 11:19:39.389 INFO [stderr] 10 |   Alabama,
Nov 30 11:19:39.389 INFO [stderr]    |   ^^^^^^^
Nov 30 11:19:39.390 INFO [stderr] 
Nov 30 11:19:40.150 INFO [stderr] warning: field is never used: `query`
Nov 30 11:19:40.150 INFO [stderr]   --> src/read.rs:27:5
Nov 30 11:19:40.150 INFO [stderr]    |
Nov 30 11:19:40.150 INFO [stderr] 27 |     query: String,
Nov 30 11:19:40.150 INFO [stderr]    |     ^^^^^^^^^^^^^
Nov 30 11:19:40.160 INFO [stderr]    |
Nov 30 11:19:40.160 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 11:19:40.160 INFO [stderr] 
Nov 30 11:19:40.199 INFO [stderr] warning: unused variable: `s6`
Nov 30 11:19:40.199 INFO [stderr]   --> src/owner.rs:19:7
Nov 30 11:19:40.200 INFO [stderr]    |
Nov 30 11:19:40.200 INFO [stderr] 19 |   let s6 = s5;
Nov 30 11:19:40.200 INFO [stderr]    |       ^^ help: consider using `_s6` instead
Nov 30 11:19:40.202 INFO [stderr]    |
Nov 30 11:19:40.203 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 11:19:40.203 INFO [stderr] 
Nov 30 11:19:40.211 INFO [stderr] warning: function is never used: `gives_ownership`
Nov 30 11:19:40.212 INFO [stderr]   --> src/owner.rs:37:1
Nov 30 11:19:40.213 INFO [stderr]    |
Nov 30 11:19:40.214 INFO [stderr] 37 | fn gives_ownership() -> String {
Nov 30 11:19:40.214 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:19:40.265 INFO [stderr]    |
Nov 30 11:19:40.265 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 11:19:40.265 INFO [stderr] 
Nov 30 11:19:40.916 INFO [stderr] warning: unused variable: `integer`
Nov 30 11:19:40.916 INFO [stderr]   --> src/generics.rs:14:7
Nov 30 11:19:40.917 INFO [stderr]    |
Nov 30 11:19:40.917 INFO [stderr] 14 |   let integer = Point {
Nov 30 11:19:40.917 INFO [stderr]    |       ^^^^^^^ help: consider using `_integer` instead
Nov 30 11:19:40.917 INFO [stderr]    |
Nov 30 11:19:40.918 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 11:19:40.918 INFO [stderr] 
Nov 30 11:19:40.968 INFO [stderr] warning: field is never used: `y`
Nov 30 11:19:40.969 INFO [stderr]  --> src/generics.rs:3:3
Nov 30 11:19:40.969 INFO [stderr]   |
Nov 30 11:19:40.969 INFO [stderr] 3 |   y: T
Nov 30 11:19:40.969 INFO [stderr]   |   ^^^^
Nov 30 11:19:40.972 INFO [stderr]   |
Nov 30 11:19:40.973 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 11:19:40.973 INFO [stderr] 
Nov 30 11:19:41.633 INFO [stderr] error[E0601]: `main` function not found in crate `refcall`
Nov 30 11:19:41.633 INFO [stderr]   |
Nov 30 11:19:41.633 INFO [stderr]   = note: consider adding a `main` function to `src/refcall.rs`
Nov 30 11:19:41.633 INFO [stderr] 
Nov 30 11:19:41.670 INFO [stderr] error: aborting due to previous error
Nov 30 11:19:41.670 INFO [stderr] 
Nov 30 11:19:41.670 INFO [stderr] For more information about this error, try `rustc --explain E0601`.
Nov 30 11:19:41.681 INFO [stderr] error: Could not compile `rust_learning`.
Nov 30 11:19:41.682 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 30 11:19:42.102 INFO [stderr] error: build failed
Nov 30 11:19:42.104 INFO [stderr] su: No module specific data is present
Nov 30 11:19:44.071 INFO running `"docker" "inspect" "b3e93ddddc7f8d09aa28d83fa8d22afa12482d0e74796ecfa61c521d3fe02357"`
Nov 30 11:19:44.376 INFO running `"docker" "rm" "-f" "b3e93ddddc7f8d09aa28d83fa8d22afa12482d0e74796ecfa61c521d3fe02357"`
Nov 30 11:19:44.655 INFO [stdout] b3e93ddddc7f8d09aa28d83fa8d22afa12482d0e74796ecfa61c521d3fe02357