Nov 29 20:01:29.158 INFO checking raphlinus/ghilbert against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 29 20:01:29.158 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-4/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 29 20:01:29.670 INFO [stdout] 6e0b91c54abbe52b7f608bb6147b1cd464139a6a64eb7e4b8bbfdea44c9da054
Nov 29 20:01:29.670 INFO running `"docker" "start" "-a" "6e0b91c54abbe52b7f608bb6147b1cd464139a6a64eb7e4b8bbfdea44c9da054"`
Nov 29 20:01:31.319 INFO [stderr] usermod: no changes
Nov 29 20:01:31.400 INFO [stderr]     Checking union-find v0.3.1
Nov 29 20:01:31.400 INFO [stderr]     Checking serde_json v1.0.2
Nov 29 20:01:33.709 INFO [stderr]     Checking ghilbert v0.1.0 (/source)
Nov 29 20:01:34.192 INFO [stderr] warning: doc comment not used by rustdoc
Nov 29 20:01:34.192 INFO [stderr]    --> src/unify.rs:471:9
Nov 29 20:01:34.192 INFO [stderr]     |
Nov 29 20:01:34.192 INFO [stderr] 471 |         /// Maps node of bound var to set of term var nodes it can appear free in.
Nov 29 20:01:34.192 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:01:34.192 INFO [stderr]     |
Nov 29 20:01:34.192 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Nov 29 20:01:34.192 INFO [stderr] 
Nov 29 20:01:34.464 INFO [stderr] warning: doc comment not used by rustdoc
Nov 29 20:01:34.464 INFO [stderr]    --> src/unify.rs:471:9
Nov 29 20:01:34.464 INFO [stderr]     |
Nov 29 20:01:34.464 INFO [stderr] 471 |         /// Maps node of bound var to set of term var nodes it can appear free in.
Nov 29 20:01:34.464 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:01:34.464 INFO [stderr]     |
Nov 29 20:01:34.464 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Nov 29 20:01:34.464 INFO [stderr] 
Nov 29 20:01:34.860 INFO [stderr] warning: unused variable: `writer`
Nov 29 20:01:34.860 INFO [stderr]    --> src/htmlout.rs:128:39
Nov 29 20:01:34.860 INFO [stderr]     |
Nov 29 20:01:34.860 INFO [stderr] 128 |     pub fn write<W: Write>(&mut self, writer: &mut W, parser: &Parser) -> io::Result<()> {
Nov 29 20:01:34.860 INFO [stderr]     |                                       ^^^^^^ help: consider using `_writer` instead
Nov 29 20:01:34.860 INFO [stderr]     |
Nov 29 20:01:34.860 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 29 20:01:34.860 INFO [stderr] 
Nov 29 20:01:34.860 INFO [stderr] warning: unused variable: `line`
Nov 29 20:01:34.860 INFO [stderr]    --> src/htmlout.rs:371:30
Nov 29 20:01:34.860 INFO [stderr]     |
Nov 29 20:01:34.860 INFO [stderr] 371 |     fn start_line(&mut self, line: &ParseNode) {
Nov 29 20:01:34.860 INFO [stderr]     |                              ^^^^ help: consider using `_line` instead
Nov 29 20:01:34.860 INFO [stderr] 
Nov 29 20:01:34.928 INFO [stderr] warning: variable does not need to be mutable
Nov 29 20:01:34.928 INFO [stderr]    --> src/lexer.rs:132:13
Nov 29 20:01:34.928 INFO [stderr]     |
Nov 29 20:01:34.928 INFO [stderr] 132 |         let mut node = self.root.traverse(s.chars());
Nov 29 20:01:34.928 INFO [stderr]     |             ----^^^^
Nov 29 20:01:34.928 INFO [stderr]     |             |
Nov 29 20:01:34.928 INFO [stderr]     |             help: remove this `mut`
Nov 29 20:01:34.928 INFO [stderr]     |
Nov 29 20:01:34.928 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 29 20:01:34.928 INFO [stderr] 
Nov 29 20:01:35.138 INFO [stderr] warning: method is never used: `cur_info`
Nov 29 20:01:35.138 INFO [stderr]    --> src/htmlout.rs:307:5
Nov 29 20:01:35.138 INFO [stderr]     |
Nov 29 20:01:35.138 INFO [stderr] 307 |     fn cur_info(&self) -> &ThmInfo {
Nov 29 20:01:35.138 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:01:35.138 INFO [stderr]     |
Nov 29 20:01:35.138 INFO [stderr]     = note: #[warn(dead_code)] on by default
Nov 29 20:01:35.138 INFO [stderr] 
Nov 29 20:01:35.138 INFO [stderr] warning: method is never used: `get_end`
Nov 29 20:01:35.138 INFO [stderr]   --> src/parser.rs:44:5
Nov 29 20:01:35.138 INFO [stderr]    |
Nov 29 20:01:35.138 INFO [stderr] 44 |     pub fn get_end(&self) -> usize {
Nov 29 20:01:35.138 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:01:35.139 INFO [stderr] 
Nov 29 20:01:35.139 INFO [stderr] warning: field is never used: `session`
Nov 29 20:01:35.139 INFO [stderr]    --> src/session.rs:566:5
Nov 29 20:01:35.139 INFO [stderr]     |
Nov 29 20:01:35.139 INFO [stderr] 566 |     session: &'b Session<'a>,
Nov 29 20:01:35.139 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:01:35.139 INFO [stderr] 
Nov 29 20:01:35.208 INFO [stderr] warning: unused variable: `writer`
Nov 29 20:01:35.208 INFO [stderr]    --> src/htmlout.rs:128:39
Nov 29 20:01:35.208 INFO [stderr]     |
Nov 29 20:01:35.208 INFO [stderr] 128 |     pub fn write<W: Write>(&mut self, writer: &mut W, parser: &Parser) -> io::Result<()> {
Nov 29 20:01:35.208 INFO [stderr]     |                                       ^^^^^^ help: consider using `_writer` instead
Nov 29 20:01:35.208 INFO [stderr]     |
Nov 29 20:01:35.209 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 29 20:01:35.209 INFO [stderr] 
Nov 29 20:01:35.210 INFO [stderr] warning: unused variable: `line`
Nov 29 20:01:35.210 INFO [stderr]    --> src/htmlout.rs:371:30
Nov 29 20:01:35.210 INFO [stderr]     |
Nov 29 20:01:35.210 INFO [stderr] 371 |     fn start_line(&mut self, line: &ParseNode) {
Nov 29 20:01:35.210 INFO [stderr]     |                              ^^^^ help: consider using `_line` instead
Nov 29 20:01:35.210 INFO [stderr] 
Nov 29 20:01:35.304 INFO [stderr] warning: variable does not need to be mutable
Nov 29 20:01:35.304 INFO [stderr]    --> src/lexer.rs:132:13
Nov 29 20:01:35.304 INFO [stderr]     |
Nov 29 20:01:35.304 INFO [stderr] 132 |         let mut node = self.root.traverse(s.chars());
Nov 29 20:01:35.304 INFO [stderr]     |             ----^^^^
Nov 29 20:01:35.304 INFO [stderr]     |             |
Nov 29 20:01:35.304 INFO [stderr]     |             help: remove this `mut`
Nov 29 20:01:35.304 INFO [stderr]     |
Nov 29 20:01:35.304 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 29 20:01:35.304 INFO [stderr] 
Nov 29 20:01:35.490 INFO [stderr] warning: method is never used: `cur_info`
Nov 29 20:01:35.490 INFO [stderr]    --> src/htmlout.rs:307:5
Nov 29 20:01:35.490 INFO [stderr]     |
Nov 29 20:01:35.490 INFO [stderr] 307 |     fn cur_info(&self) -> &ThmInfo {
Nov 29 20:01:35.490 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:01:35.490 INFO [stderr]     |
Nov 29 20:01:35.490 INFO [stderr]     = note: #[warn(dead_code)] on by default
Nov 29 20:01:35.490 INFO [stderr] 
Nov 29 20:01:35.491 INFO [stderr] warning: method is never used: `get_end`
Nov 29 20:01:35.491 INFO [stderr]   --> src/parser.rs:44:5
Nov 29 20:01:35.491 INFO [stderr]    |
Nov 29 20:01:35.491 INFO [stderr] 44 |     pub fn get_end(&self) -> usize {
Nov 29 20:01:35.491 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:01:35.491 INFO [stderr] 
Nov 29 20:01:35.491 INFO [stderr] warning: field is never used: `session`
Nov 29 20:01:35.491 INFO [stderr]    --> src/session.rs:566:5
Nov 29 20:01:35.491 INFO [stderr]     |
Nov 29 20:01:35.491 INFO [stderr] 566 |     session: &'b Session<'a>,
Nov 29 20:01:35.491 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:01:35.491 INFO [stderr] 
Nov 29 20:01:35.534 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.19s
Nov 29 20:01:35.543 INFO [stderr] su: No module specific data is present
Nov 29 20:01:36.113 INFO running `"docker" "inspect" "6e0b91c54abbe52b7f608bb6147b1cd464139a6a64eb7e4b8bbfdea44c9da054"`
Nov 29 20:01:36.272 INFO running `"docker" "rm" "-f" "6e0b91c54abbe52b7f608bb6147b1cd464139a6a64eb7e4b8bbfdea44c9da054"`
Nov 29 20:01:36.428 INFO [stdout] 6e0b91c54abbe52b7f608bb6147b1cd464139a6a64eb7e4b8bbfdea44c9da054