Oct 12 15:17:26.421 INFO checking raphlinus/ghilbert against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 15:17:26.421 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-2/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-2/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 12 15:17:27.029 INFO blam! 61f897dc7d596cb662d2796ed44de197680a123f4b63f09947ad4b1a07c4c3e9
Oct 12 15:17:27.031 INFO running `"docker" "start" "-a" "61f897dc7d596cb662d2796ed44de197680a123f4b63f09947ad4b1a07c4c3e9"`
Oct 12 15:17:29.408 INFO kablam! usermod: no changes
Oct 12 15:17:29.492 INFO kablam!     Checking union-find v0.3.1
Oct 12 15:17:29.508 INFO kablam!     Checking serde_json v1.0.2
Oct 12 15:17:32.321 INFO kablam!     Checking ghilbert v0.1.0 (/source)
Oct 12 15:17:32.763 INFO kablam! warning: doc comment not used by rustdoc
Oct 12 15:17:32.763 INFO kablam!    --> src/unify.rs:471:9
Oct 12 15:17:32.763 INFO kablam!     |
Oct 12 15:17:32.763 INFO kablam! 471 |         /// Maps node of bound var to set of term var nodes it can appear free in.
Oct 12 15:17:32.763 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:17:32.763 INFO kablam!     |
Oct 12 15:17:32.763 INFO kablam!     = note: #[warn(unused_doc_comments)] on by default
Oct 12 15:17:32.763 INFO kablam! 
Oct 12 15:17:33.037 INFO kablam! warning: doc comment not used by rustdoc
Oct 12 15:17:33.037 INFO kablam!    --> src/unify.rs:471:9
Oct 12 15:17:33.037 INFO kablam!     |
Oct 12 15:17:33.038 INFO kablam! 471 |         /// Maps node of bound var to set of term var nodes it can appear free in.
Oct 12 15:17:33.038 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:17:33.038 INFO kablam!     |
Oct 12 15:17:33.038 INFO kablam!     = note: #[warn(unused_doc_comments)] on by default
Oct 12 15:17:33.038 INFO kablam! 
Oct 12 15:17:33.526 INFO kablam! warning: unused variable: `writer`
Oct 12 15:17:33.526 INFO kablam!    --> src/htmlout.rs:128:39
Oct 12 15:17:33.526 INFO kablam!     |
Oct 12 15:17:33.526 INFO kablam! 128 |     pub fn write<W: Write>(&mut self, writer: &mut W, parser: &Parser) -> io::Result<()> {
Oct 12 15:17:33.527 INFO kablam!     |                                       ^^^^^^ help: consider using `_writer` instead
Oct 12 15:17:33.527 INFO kablam!     |
Oct 12 15:17:33.527 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 12 15:17:33.527 INFO kablam! 
Oct 12 15:17:33.527 INFO kablam! warning: unused variable: `line`
Oct 12 15:17:33.527 INFO kablam!    --> src/htmlout.rs:371:30
Oct 12 15:17:33.527 INFO kablam!     |
Oct 12 15:17:33.527 INFO kablam! 371 |     fn start_line(&mut self, line: &ParseNode) {
Oct 12 15:17:33.527 INFO kablam!     |                              ^^^^ help: consider using `_line` instead
Oct 12 15:17:33.527 INFO kablam! 
Oct 12 15:17:33.628 INFO kablam! warning: variable does not need to be mutable
Oct 12 15:17:33.628 INFO kablam!    --> src/lexer.rs:132:13
Oct 12 15:17:33.628 INFO kablam!     |
Oct 12 15:17:33.628 INFO kablam! 132 |         let mut node = self.root.traverse(s.chars());
Oct 12 15:17:33.628 INFO kablam!     |             ----^^^^
Oct 12 15:17:33.628 INFO kablam!     |             |
Oct 12 15:17:33.628 INFO kablam!     |             help: remove this `mut`
Oct 12 15:17:33.628 INFO kablam!     |
Oct 12 15:17:33.628 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 12 15:17:33.628 INFO kablam! 
Oct 12 15:17:33.792 INFO kablam! warning: unused variable: `writer`
Oct 12 15:17:33.792 INFO kablam!    --> src/htmlout.rs:128:39
Oct 12 15:17:33.792 INFO kablam!     |
Oct 12 15:17:33.792 INFO kablam! 128 |     pub fn write<W: Write>(&mut self, writer: &mut W, parser: &Parser) -> io::Result<()> {
Oct 12 15:17:33.792 INFO kablam!     |                                       ^^^^^^ help: consider using `_writer` instead
Oct 12 15:17:33.792 INFO kablam!     |
Oct 12 15:17:33.792 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 12 15:17:33.792 INFO kablam! 
Oct 12 15:17:33.792 INFO kablam! warning: unused variable: `line`
Oct 12 15:17:33.792 INFO kablam!    --> src/htmlout.rs:371:30
Oct 12 15:17:33.792 INFO kablam!     |
Oct 12 15:17:33.792 INFO kablam! 371 |     fn start_line(&mut self, line: &ParseNode) {
Oct 12 15:17:33.792 INFO kablam!     |                              ^^^^ help: consider using `_line` instead
Oct 12 15:17:33.792 INFO kablam! 
Oct 12 15:17:33.816 INFO kablam! warning: method is never used: `cur_info`
Oct 12 15:17:33.816 INFO kablam!    --> src/htmlout.rs:307:5
Oct 12 15:17:33.816 INFO kablam!     |
Oct 12 15:17:33.816 INFO kablam! 307 |     fn cur_info(&self) -> &ThmInfo {
Oct 12 15:17:33.816 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:17:33.816 INFO kablam!     |
Oct 12 15:17:33.816 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 12 15:17:33.816 INFO kablam! 
Oct 12 15:17:33.816 INFO kablam! warning: method is never used: `get_end`
Oct 12 15:17:33.816 INFO kablam!   --> src/parser.rs:44:5
Oct 12 15:17:33.816 INFO kablam!    |
Oct 12 15:17:33.816 INFO kablam! 44 |     pub fn get_end(&self) -> usize {
Oct 12 15:17:33.816 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:17:33.816 INFO kablam! 
Oct 12 15:17:33.816 INFO kablam! warning: field is never used: `session`
Oct 12 15:17:33.816 INFO kablam!    --> src/session.rs:566:5
Oct 12 15:17:33.816 INFO kablam!     |
Oct 12 15:17:33.816 INFO kablam! 566 |     session: &'b Session<'a>,
Oct 12 15:17:33.816 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:17:33.816 INFO kablam! 
Oct 12 15:17:33.912 INFO kablam! warning: variable does not need to be mutable
Oct 12 15:17:33.912 INFO kablam!    --> src/lexer.rs:132:13
Oct 12 15:17:33.912 INFO kablam!     |
Oct 12 15:17:33.912 INFO kablam! 132 |         let mut node = self.root.traverse(s.chars());
Oct 12 15:17:33.912 INFO kablam!     |             ----^^^^
Oct 12 15:17:33.912 INFO kablam!     |             |
Oct 12 15:17:33.912 INFO kablam!     |             help: remove this `mut`
Oct 12 15:17:33.912 INFO kablam!     |
Oct 12 15:17:33.912 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 12 15:17:33.912 INFO kablam! 
Oct 12 15:17:34.148 INFO kablam! warning: method is never used: `cur_info`
Oct 12 15:17:34.148 INFO kablam!    --> src/htmlout.rs:307:5
Oct 12 15:17:34.148 INFO kablam!     |
Oct 12 15:17:34.148 INFO kablam! 307 |     fn cur_info(&self) -> &ThmInfo {
Oct 12 15:17:34.148 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:17:34.148 INFO kablam!     |
Oct 12 15:17:34.148 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 12 15:17:34.148 INFO kablam! 
Oct 12 15:17:34.148 INFO kablam! warning: method is never used: `get_end`
Oct 12 15:17:34.148 INFO kablam!   --> src/parser.rs:44:5
Oct 12 15:17:34.148 INFO kablam!    |
Oct 12 15:17:34.148 INFO kablam! 44 |     pub fn get_end(&self) -> usize {
Oct 12 15:17:34.148 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:17:34.148 INFO kablam! 
Oct 12 15:17:34.148 INFO kablam! warning: field is never used: `session`
Oct 12 15:17:34.148 INFO kablam!    --> src/session.rs:566:5
Oct 12 15:17:34.148 INFO kablam!     |
Oct 12 15:17:34.148 INFO kablam! 566 |     session: &'b Session<'a>,
Oct 12 15:17:34.148 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:17:34.148 INFO kablam! 
Oct 12 15:17:34.188 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.76s
Oct 12 15:17:34.195 INFO kablam! su: No module specific data is present
Oct 12 15:17:34.907 INFO running `"docker" "rm" "-f" "61f897dc7d596cb662d2796ed44de197680a123f4b63f09947ad4b1a07c4c3e9"`
Oct 12 15:17:35.208 INFO blam! 61f897dc7d596cb662d2796ed44de197680a123f4b63f09947ad4b1a07c4c3e9