Oct 31 22:45:53.226 INFO checking raphlinus/ghilbert against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Oct 31 22:45:53.226 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-1/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 31 22:45:53.694 INFO blam! bed9e2b0105d5130ef646036d8530580023f402058a6cbade597add9c1ef6bdc
Oct 31 22:45:53.695 INFO running `"docker" "start" "-a" "bed9e2b0105d5130ef646036d8530580023f402058a6cbade597add9c1ef6bdc"`
Oct 31 22:45:55.565 INFO kablam! usermod: no changes
Oct 31 22:45:55.638 INFO kablam!     Checking union-find v0.3.1
Oct 31 22:45:55.638 INFO kablam!     Checking serde_json v1.0.2
Oct 31 22:45:58.302 INFO kablam!     Checking ghilbert v0.1.0 (/source)
Oct 31 22:45:59.052 INFO kablam! warning: doc comment not used by rustdoc
Oct 31 22:45:59.052 INFO kablam!    --> src/unify.rs:471:9
Oct 31 22:45:59.052 INFO kablam!     |
Oct 31 22:45:59.052 INFO kablam! 471 |         /// Maps node of bound var to set of term var nodes it can appear free in.
Oct 31 22:45:59.052 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:45:59.052 INFO kablam!     |
Oct 31 22:45:59.052 INFO kablam!     = note: #[warn(unused_doc_comments)] on by default
Oct 31 22:45:59.052 INFO kablam! 
Oct 31 22:45:59.272 INFO kablam! warning: doc comment not used by rustdoc
Oct 31 22:45:59.272 INFO kablam!    --> src/unify.rs:471:9
Oct 31 22:45:59.272 INFO kablam!     |
Oct 31 22:45:59.272 INFO kablam! 471 |         /// Maps node of bound var to set of term var nodes it can appear free in.
Oct 31 22:45:59.272 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:45:59.272 INFO kablam!     |
Oct 31 22:45:59.272 INFO kablam!     = note: #[warn(unused_doc_comments)] on by default
Oct 31 22:45:59.272 INFO kablam! 
Oct 31 22:46:00.137 INFO kablam! warning: unused variable: `writer`
Oct 31 22:46:00.138 INFO kablam!    --> src/htmlout.rs:128:39
Oct 31 22:46:00.138 INFO kablam!     |
Oct 31 22:46:00.138 INFO kablam! 128 |     pub fn write<W: Write>(&mut self, writer: &mut W, parser: &Parser) -> io::Result<()> {
Oct 31 22:46:00.138 INFO kablam!     |                                       ^^^^^^ help: consider using `_writer` instead
Oct 31 22:46:00.138 INFO kablam!     |
Oct 31 22:46:00.138 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 31 22:46:00.138 INFO kablam! 
Oct 31 22:46:00.139 INFO kablam! warning: unused variable: `line`
Oct 31 22:46:00.139 INFO kablam!    --> src/htmlout.rs:371:30
Oct 31 22:46:00.139 INFO kablam!     |
Oct 31 22:46:00.139 INFO kablam! 371 |     fn start_line(&mut self, line: &ParseNode) {
Oct 31 22:46:00.139 INFO kablam!     |                              ^^^^ help: consider using `_line` instead
Oct 31 22:46:00.139 INFO kablam! 
Oct 31 22:46:00.216 INFO kablam! warning: variable does not need to be mutable
Oct 31 22:46:00.216 INFO kablam!    --> src/lexer.rs:132:13
Oct 31 22:46:00.216 INFO kablam!     |
Oct 31 22:46:00.216 INFO kablam! 132 |         let mut node = self.root.traverse(s.chars());
Oct 31 22:46:00.216 INFO kablam!     |             ----^^^^
Oct 31 22:46:00.216 INFO kablam!     |             |
Oct 31 22:46:00.216 INFO kablam!     |             help: remove this `mut`
Oct 31 22:46:00.217 INFO kablam!     |
Oct 31 22:46:00.217 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 31 22:46:00.217 INFO kablam! 
Oct 31 22:46:00.304 INFO kablam! warning: unused variable: `writer`
Oct 31 22:46:00.304 INFO kablam!    --> src/htmlout.rs:128:39
Oct 31 22:46:00.304 INFO kablam!     |
Oct 31 22:46:00.304 INFO kablam! 128 |     pub fn write<W: Write>(&mut self, writer: &mut W, parser: &Parser) -> io::Result<()> {
Oct 31 22:46:00.304 INFO kablam!     |                                       ^^^^^^ help: consider using `_writer` instead
Oct 31 22:46:00.304 INFO kablam!     |
Oct 31 22:46:00.304 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 31 22:46:00.304 INFO kablam! 
Oct 31 22:46:00.304 INFO kablam! warning: unused variable: `line`
Oct 31 22:46:00.304 INFO kablam!    --> src/htmlout.rs:371:30
Oct 31 22:46:00.304 INFO kablam!     |
Oct 31 22:46:00.304 INFO kablam! 371 |     fn start_line(&mut self, line: &ParseNode) {
Oct 31 22:46:00.312 INFO kablam!     |                              ^^^^ help: consider using `_line` instead
Oct 31 22:46:00.312 INFO kablam! 
Oct 31 22:46:00.424 INFO kablam! warning: variable does not need to be mutable
Oct 31 22:46:00.425 INFO kablam!    --> src/lexer.rs:132:13
Oct 31 22:46:00.425 INFO kablam!     |
Oct 31 22:46:00.425 INFO kablam! 132 |         let mut node = self.root.traverse(s.chars());
Oct 31 22:46:00.426 INFO kablam!     |             ----^^^^
Oct 31 22:46:00.426 INFO kablam!     |             |
Oct 31 22:46:00.426 INFO kablam!     |             help: remove this `mut`
Oct 31 22:46:00.426 INFO kablam!     |
Oct 31 22:46:00.427 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 31 22:46:00.427 INFO kablam! 
Oct 31 22:46:00.488 INFO kablam! warning: method is never used: `cur_info`
Oct 31 22:46:00.489 INFO kablam!    --> src/htmlout.rs:307:5
Oct 31 22:46:00.489 INFO kablam!     |
Oct 31 22:46:00.489 INFO kablam! 307 |     fn cur_info(&self) -> &ThmInfo {
Oct 31 22:46:00.489 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:46:00.490 INFO kablam!     |
Oct 31 22:46:00.490 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 31 22:46:00.490 INFO kablam! 
Oct 31 22:46:00.491 INFO kablam! warning: method is never used: `get_end`
Oct 31 22:46:00.491 INFO kablam!   --> src/parser.rs:44:5
Oct 31 22:46:00.491 INFO kablam!    |
Oct 31 22:46:00.492 INFO kablam! 44 |     pub fn get_end(&self) -> usize {
Oct 31 22:46:00.492 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:46:00.492 INFO kablam! 
Oct 31 22:46:00.493 INFO kablam! warning: field is never used: `session`
Oct 31 22:46:00.493 INFO kablam!    --> src/session.rs:566:5
Oct 31 22:46:00.496 INFO kablam!     |
Oct 31 22:46:00.496 INFO kablam! 566 |     session: &'b Session<'a>,
Oct 31 22:46:00.497 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:46:00.497 INFO kablam! 
Oct 31 22:46:00.689 INFO kablam! warning: method is never used: `cur_info`
Oct 31 22:46:00.689 INFO kablam!    --> src/htmlout.rs:307:5
Oct 31 22:46:00.689 INFO kablam!     |
Oct 31 22:46:00.689 INFO kablam! 307 |     fn cur_info(&self) -> &ThmInfo {
Oct 31 22:46:00.689 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:46:00.689 INFO kablam!     |
Oct 31 22:46:00.689 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 31 22:46:00.690 INFO kablam! 
Oct 31 22:46:00.690 INFO kablam! warning: method is never used: `get_end`
Oct 31 22:46:00.690 INFO kablam!   --> src/parser.rs:44:5
Oct 31 22:46:00.690 INFO kablam!    |
Oct 31 22:46:00.690 INFO kablam! 44 |     pub fn get_end(&self) -> usize {
Oct 31 22:46:00.690 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:46:00.691 INFO kablam! 
Oct 31 22:46:00.691 INFO kablam! warning: field is never used: `session`
Oct 31 22:46:00.691 INFO kablam!    --> src/session.rs:566:5
Oct 31 22:46:00.691 INFO kablam!     |
Oct 31 22:46:00.691 INFO kablam! 566 |     session: &'b Session<'a>,
Oct 31 22:46:00.691 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:46:00.691 INFO kablam! 
Oct 31 22:46:00.740 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.14s
Oct 31 22:46:00.740 INFO kablam! su: No module specific data is present
Oct 31 22:46:01.828 INFO running `"docker" "rm" "-f" "bed9e2b0105d5130ef646036d8530580023f402058a6cbade597add9c1ef6bdc"`
Oct 31 22:46:02.156 INFO blam! bed9e2b0105d5130ef646036d8530580023f402058a6cbade597add9c1ef6bdc