Oct 13 00:57:04.777 INFO checking athorwall/parser-combinators against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 00:57:04.777 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-3/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-3/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 13 00:57:05.350 INFO blam! c3fd15de3168642c9944552d5f2325a5f1eed22f6ae080045a6e6e4ec716b166
Oct 13 00:57:05.354 INFO running `"docker" "start" "-a" "c3fd15de3168642c9944552d5f2325a5f1eed22f6ae080045a6e6e4ec716b166"`
Oct 13 00:57:06.596 INFO kablam! usermod: no changes
Oct 13 00:57:06.643 INFO kablam!     Checking parser-combinators v0.1.0 (/source)
Oct 13 00:57:07.148 INFO kablam! warning: unused variable: `value`
Oct 13 00:57:07.148 INFO kablam!   --> src/parser.rs:42:26
Oct 13 00:57:07.148 INFO kablam!    |
Oct 13 00:57:07.148 INFO kablam! 42 |                     Some(value) => {
Oct 13 00:57:07.148 INFO kablam!    |                          ^^^^^ help: consider using `_value` instead
Oct 13 00:57:07.148 INFO kablam!    |
Oct 13 00:57:07.148 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 13 00:57:07.148 INFO kablam! 
Oct 13 00:57:07.148 INFO kablam! warning: unused variable: `new_input`
Oct 13 00:57:07.148 INFO kablam!   --> src/parser.rs:43:33
Oct 13 00:57:07.148 INFO kablam!    |
Oct 13 00:57:07.148 INFO kablam! 43 |                         let mut new_input = input.clone();
Oct 13 00:57:07.148 INFO kablam!    |                                 ^^^^^^^^^ help: consider using `_new_input` instead
Oct 13 00:57:07.148 INFO kablam! 
Oct 13 00:57:07.160 INFO kablam! warning: struct is never constructed: `Parser`
Oct 13 00:57:07.160 INFO kablam!  --> src/parser.rs:3:1
Oct 13 00:57:07.160 INFO kablam!   |
Oct 13 00:57:07.160 INFO kablam! 3 | struct Parser<'a, T> {
Oct 13 00:57:07.160 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^
Oct 13 00:57:07.160 INFO kablam!   |
Oct 13 00:57:07.160 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 13 00:57:07.160 INFO kablam! 
Oct 13 00:57:07.168 INFO kablam! warning: method is never used: `parse`
Oct 13 00:57:07.168 INFO kablam!  --> src/parser.rs:8:5
Oct 13 00:57:07.168 INFO kablam!   |
Oct 13 00:57:07.168 INFO kablam! 8 |     pub fn parse(&self, input: &String) -> Result<T, String> {
Oct 13 00:57:07.168 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 00:57:07.168 INFO kablam! 
Oct 13 00:57:07.168 INFO kablam! warning: method is never used: `map`
Oct 13 00:57:07.168 INFO kablam!   --> src/parser.rs:24:5
Oct 13 00:57:07.168 INFO kablam!    |
Oct 13 00:57:07.169 INFO kablam! 24 |     pub fn map<U>(self, func: Box<Fn(&T) -> U>) -> Parser<'a, U> where T: 'a, U: 'a {
Oct 13 00:57:07.169 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 00:57:07.169 INFO kablam! 
Oct 13 00:57:07.169 INFO kablam! warning: method is never used: `one`
Oct 13 00:57:07.169 INFO kablam!   --> src/parser.rs:38:5
Oct 13 00:57:07.169 INFO kablam!    |
Oct 13 00:57:07.169 INFO kablam! 38 |     pub fn one(t: char) -> Parser<'a, char> {
Oct 13 00:57:07.169 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 00:57:07.169 INFO kablam! 
Oct 13 00:57:07.169 INFO kablam! warning: method is never used: `combine`
Oct 13 00:57:07.169 INFO kablam!   --> src/parser.rs:62:5
Oct 13 00:57:07.169 INFO kablam!    |
Oct 13 00:57:07.169 INFO kablam! 62 | /     pub fn combine<'b, U>(p1: Parser<'b, U>, p2: Parser<'b, U>) -> Parser<'b, U>
Oct 13 00:57:07.169 INFO kablam! 63 | |         where U: Copy + 'b {
Oct 13 00:57:07.169 INFO kablam! 64 | |         Parser{
Oct 13 00:57:07.169 INFO kablam! 65 | |             f: Box::from(move |input: &String| {
Oct 13 00:57:07.169 INFO kablam! ...  |
Oct 13 00:57:07.169 INFO kablam! 71 | |         }
Oct 13 00:57:07.169 INFO kablam! 72 | |     }
Oct 13 00:57:07.169 INFO kablam!    | |_____^
Oct 13 00:57:07.169 INFO kablam! 
Oct 13 00:57:07.169 INFO kablam! warning: method is never used: `option`
Oct 13 00:57:07.169 INFO kablam!   --> src/parser.rs:75:5
Oct 13 00:57:07.169 INFO kablam!    |
Oct 13 00:57:07.169 INFO kablam! 75 | /     pub fn option<'b, U>(p1: Parser<'b, U>, p2: Parser<'b, U>) -> Parser<'b, U>
Oct 13 00:57:07.169 INFO kablam! 76 | |         where U: Copy + 'b {
Oct 13 00:57:07.169 INFO kablam! 77 | |         Parser{
Oct 13 00:57:07.169 INFO kablam! 78 | |             f: Box::from(move |input: &String| {
Oct 13 00:57:07.169 INFO kablam! ...  |
Oct 13 00:57:07.169 INFO kablam! 86 | |         }
Oct 13 00:57:07.169 INFO kablam! 87 | |     }
Oct 13 00:57:07.169 INFO kablam!    | |_____^
Oct 13 00:57:07.169 INFO kablam! 
Oct 13 00:57:07.169 INFO kablam! warning: method is never used: `bind`
Oct 13 00:57:07.169 INFO kablam!    --> src/parser.rs:90:5
Oct 13 00:57:07.169 INFO kablam!     |
Oct 13 00:57:07.169 INFO kablam! 90  | /     pub fn bind<'b, U, V>(p1: Parser<'b, U>, p2: Box<Fn(U) -> Parser<'b, V>>) -> Parser<'b, V>
Oct 13 00:57:07.169 INFO kablam! 91  | |         where U: Copy + 'b, V: 'b {
Oct 13 00:57:07.169 INFO kablam! 92  | |         Parser{
Oct 13 00:57:07.169 INFO kablam! 93  | |             f: Box::from(move |input: &String| {
Oct 13 00:57:07.169 INFO kablam! ...   |
Oct 13 00:57:07.169 INFO kablam! 100 | |         }
Oct 13 00:57:07.169 INFO kablam! 101 | |     }
Oct 13 00:57:07.169 INFO kablam!     | |_____^
Oct 13 00:57:07.169 INFO kablam! 
Oct 13 00:57:07.560 INFO kablam! warning: unused variable: `value`
Oct 13 00:57:07.560 INFO kablam!   --> src/parser.rs:42:26
Oct 13 00:57:07.560 INFO kablam!    |
Oct 13 00:57:07.560 INFO kablam! 42 |                     Some(value) => {
Oct 13 00:57:07.560 INFO kablam!    |                          ^^^^^ help: consider using `_value` instead
Oct 13 00:57:07.560 INFO kablam!    |
Oct 13 00:57:07.560 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 13 00:57:07.560 INFO kablam! 
Oct 13 00:57:07.560 INFO kablam! warning: unused variable: `new_input`
Oct 13 00:57:07.560 INFO kablam!   --> src/parser.rs:43:33
Oct 13 00:57:07.560 INFO kablam!    |
Oct 13 00:57:07.560 INFO kablam! 43 |                         let mut new_input = input.clone();
Oct 13 00:57:07.560 INFO kablam!    |                                 ^^^^^^^^^ help: consider using `_new_input` instead
Oct 13 00:57:07.560 INFO kablam! 
Oct 13 00:57:07.592 INFO kablam! warning: variable does not need to be mutable
Oct 13 00:57:07.592 INFO kablam!    --> src/parser.rs:153:21
Oct 13 00:57:07.592 INFO kablam!     |
Oct 13 00:57:07.592 INFO kablam! 153 |                 let mut s = a.to_string();
Oct 13 00:57:07.592 INFO kablam!     |                     ----^
Oct 13 00:57:07.592 INFO kablam!     |                     |
Oct 13 00:57:07.592 INFO kablam!     |                     help: remove this `mut`
Oct 13 00:57:07.592 INFO kablam!     |
Oct 13 00:57:07.592 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 13 00:57:07.592 INFO kablam! 
Oct 13 00:57:07.592 INFO kablam! warning: variable does not need to be mutable
Oct 13 00:57:07.592 INFO kablam!    --> src/parser.rs:153:21
Oct 13 00:57:07.592 INFO kablam!     |
Oct 13 00:57:07.592 INFO kablam! 153 |                 let mut s = a.to_string();
Oct 13 00:57:07.592 INFO kablam!     |                     ----^
Oct 13 00:57:07.592 INFO kablam!     |                     |
Oct 13 00:57:07.592 INFO kablam!     |                     help: remove this `mut`
Oct 13 00:57:07.592 INFO kablam! 
Oct 13 00:57:07.633 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
Oct 13 00:57:07.635 INFO kablam! su: No module specific data is present
Oct 13 00:57:08.944 INFO running `"docker" "rm" "-f" "c3fd15de3168642c9944552d5f2325a5f1eed22f6ae080045a6e6e4ec716b166"`
Oct 13 00:57:09.224 INFO blam! c3fd15de3168642c9944552d5f2325a5f1eed22f6ae080045a6e6e4ec716b166