Oct 12 15:59:20.645 INFO checking panicbit/ross against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 15:59:20.645 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-4/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/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 15:59:21.141 INFO blam! 9cc7543265de84a0f27881efb167894f821ecae011c162c4a4e6b9c23d831da2
Oct 12 15:59:21.152 INFO running `"docker" "start" "-a" "9cc7543265de84a0f27881efb167894f821ecae011c162c4a4e6b9c23d831da2"`
Oct 12 15:59:22.220 INFO kablam! usermod: no changes
Oct 12 15:59:22.348 INFO kablam!    Compiling pest v1.0.1
Oct 12 15:59:22.361 INFO kablam!     Checking backtrace-sys v0.1.16
Oct 12 15:59:23.041 INFO kablam!     Checking backtrace v0.3.5
Oct 12 15:59:24.084 INFO kablam!    Compiling pest_derive v1.0.1
Oct 12 15:59:24.477 INFO kablam!     Checking failure v0.1.1
Oct 12 15:59:31.728 INFO kablam!     Checking ross v0.1.0 (/source)
Oct 12 15:59:32.464 INFO kablam! warning: unused `#[macro_use]` import
Oct 12 15:59:32.464 INFO kablam!  --> src/lib.rs:2:1
Oct 12 15:59:32.464 INFO kablam!   |
Oct 12 15:59:32.464 INFO kablam! 2 | #[macro_use] extern crate pest;
Oct 12 15:59:32.464 INFO kablam!   | ^^^^^^^^^^^^
Oct 12 15:59:32.464 INFO kablam!   |
Oct 12 15:59:32.464 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 15:59:32.464 INFO kablam! 
Oct 12 15:59:32.600 INFO kablam! warning: unused import: `ast::*`
Oct 12 15:59:32.600 INFO kablam!  --> src/tests.rs:1:5
Oct 12 15:59:32.600 INFO kablam!   |
Oct 12 15:59:32.600 INFO kablam! 1 | use ast::*;
Oct 12 15:59:32.600 INFO kablam!   |     ^^^^^^
Oct 12 15:59:32.600 INFO kablam!   |
Oct 12 15:59:32.600 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 15:59:32.600 INFO kablam! 
Oct 12 15:59:32.776 INFO kablam! warning: unreachable expression
Oct 12 15:59:32.776 INFO kablam!   --> src/parser.rs:32:5
Oct 12 15:59:32.776 INFO kablam!    |
Oct 12 15:59:32.776 INFO kablam! 32 |     Ok(module)
Oct 12 15:59:32.776 INFO kablam!    |     ^^^^^^^^^^
Oct 12 15:59:32.776 INFO kablam!    |
Oct 12 15:59:32.776 INFO kablam!    = note: #[warn(unreachable_code)] on by default
Oct 12 15:59:32.776 INFO kablam! 
Oct 12 15:59:32.937 INFO kablam! warning: unreachable expression
Oct 12 15:59:32.937 INFO kablam!   --> src/parser.rs:32:5
Oct 12 15:59:32.937 INFO kablam!    |
Oct 12 15:59:32.937 INFO kablam! 32 |     Ok(module)
Oct 12 15:59:32.937 INFO kablam!    |     ^^^^^^^^^^
Oct 12 15:59:32.937 INFO kablam!    |
Oct 12 15:59:32.937 INFO kablam!    = note: #[warn(unreachable_code)] on by default
Oct 12 15:59:32.938 INFO kablam! 
Oct 12 15:59:33.305 INFO kablam! warning: struct is never constructed: `Scope`
Oct 12 15:59:33.305 INFO kablam!  --> src/trans.rs:2:1
Oct 12 15:59:33.305 INFO kablam!   |
Oct 12 15:59:33.305 INFO kablam! 2 | struct Scope {
Oct 12 15:59:33.305 INFO kablam!   | ^^^^^^^^^^^^
Oct 12 15:59:33.305 INFO kablam!   |
Oct 12 15:59:33.306 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 12 15:59:33.306 INFO kablam! 
Oct 12 15:59:33.306 INFO kablam! warning: method is never used: `new`
Oct 12 15:59:33.306 INFO kablam!   --> src/trans.rs:13:5
Oct 12 15:59:33.306 INFO kablam!    |
Oct 12 15:59:33.306 INFO kablam! 13 |     fn new(available: usize) -> Self {
Oct 12 15:59:33.306 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:59:33.306 INFO kablam! 
Oct 12 15:59:33.306 INFO kablam! warning: method is never used: `alloc`
Oct 12 15:59:33.306 INFO kablam!   --> src/trans.rs:17:5
Oct 12 15:59:33.306 INFO kablam!    |
Oct 12 15:59:33.306 INFO kablam! 17 |     fn alloc(&mut self) -> Option<usize> {
Oct 12 15:59:33.306 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:59:33.306 INFO kablam! 
Oct 12 15:59:33.306 INFO kablam! warning: function is never used: `module`
Oct 12 15:59:33.306 INFO kablam!  --> src/validate.rs:4:1
Oct 12 15:59:33.306 INFO kablam!   |
Oct 12 15:59:33.306 INFO kablam! 4 | pub fn module(items: &[Item]) -> Result<(), Error> {
Oct 12 15:59:33.306 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:59:33.306 INFO kablam! 
Oct 12 15:59:33.307 INFO kablam! warning: function is never used: `static_blocks_are_unique`
Oct 12 15:59:33.307 INFO kablam!   --> src/validate.rs:12:1
Oct 12 15:59:33.307 INFO kablam!    |
Oct 12 15:59:33.307 INFO kablam! 12 | pub(crate) fn static_blocks_are_unique(items: &[Item]) -> Result<(), Error> {
Oct 12 15:59:33.307 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:59:33.307 INFO kablam! 
Oct 12 15:59:33.307 INFO kablam! warning: function is never used: `item_names_are_unique`
Oct 12 15:59:33.307 INFO kablam!   --> src/validate.rs:27:1
Oct 12 15:59:33.307 INFO kablam!    |
Oct 12 15:59:33.307 INFO kablam! 27 | pub(crate) fn item_names_are_unique(items: &[Item]) -> Result<(), Error> {
Oct 12 15:59:33.307 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:59:33.307 INFO kablam! 
Oct 12 15:59:33.308 INFO kablam! warning: function is never used: `functions_dont_recur`
Oct 12 15:59:33.308 INFO kablam!   --> src/validate.rs:42:1
Oct 12 15:59:33.308 INFO kablam!    |
Oct 12 15:59:33.308 INFO kablam! 42 | pub(crate) fn functions_dont_recur(items: &[Item]) -> Result<(), Error> {
Oct 12 15:59:33.308 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:59:33.308 INFO kablam! 
Oct 12 15:59:33.308 INFO kablam! warning: enum is never used: `ConstExpr`
Oct 12 15:59:33.308 INFO kablam!  --> src/picasso.rs:2:1
Oct 12 15:59:33.308 INFO kablam!   |
Oct 12 15:59:33.308 INFO kablam! 2 | pub enum ConstExpr {
Oct 12 15:59:33.308 INFO kablam!   | ^^^^^^^^^^^^^^^^^^
Oct 12 15:59:33.308 INFO kablam! 
Oct 12 15:59:33.308 INFO kablam! warning: enum is never used: `Register`
Oct 12 15:59:33.308 INFO kablam!  --> src/picasso.rs:7:1
Oct 12 15:59:33.308 INFO kablam!   |
Oct 12 15:59:33.308 INFO kablam! 7 | pub enum Register {
Oct 12 15:59:33.308 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Oct 12 15:59:33.308 INFO kablam! 
Oct 12 15:59:33.312 INFO kablam! warning: struct is never constructed: `Ref`
Oct 12 15:59:33.312 INFO kablam!   --> src/picasso.rs:13:1
Oct 12 15:59:33.312 INFO kablam!    |
Oct 12 15:59:33.312 INFO kablam! 13 | struct Ref {
Oct 12 15:59:33.312 INFO kablam!    | ^^^^^^^^^^
Oct 12 15:59:33.312 INFO kablam! 
Oct 12 15:59:33.312 INFO kablam! warning: struct is never constructed: `Builder`
Oct 12 15:59:33.312 INFO kablam!   --> src/picasso.rs:17:1
Oct 12 15:59:33.312 INFO kablam!    |
Oct 12 15:59:33.312 INFO kablam! 17 | struct Builder {
Oct 12 15:59:33.312 INFO kablam!    | ^^^^^^^^^^^^^^
Oct 12 15:59:33.312 INFO kablam! 
Oct 12 15:59:33.312 INFO kablam! warning: function is never used: `main`
Oct 12 15:59:33.312 INFO kablam!   --> src/lib.rs:17:1
Oct 12 15:59:33.312 INFO kablam!    |
Oct 12 15:59:33.313 INFO kablam! 17 | fn main() {
Oct 12 15:59:33.313 INFO kablam!    | ^^^^^^^^^
Oct 12 15:59:33.313 INFO kablam! 
Oct 12 15:59:33.524 INFO kablam! warning: struct is never constructed: `Scope`
Oct 12 15:59:33.524 INFO kablam!  --> src/trans.rs:2:1
Oct 12 15:59:33.524 INFO kablam!   |
Oct 12 15:59:33.524 INFO kablam! 2 | struct Scope {
Oct 12 15:59:33.524 INFO kablam!   | ^^^^^^^^^^^^
Oct 12 15:59:33.524 INFO kablam!   |
Oct 12 15:59:33.524 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 12 15:59:33.524 INFO kablam! 
Oct 12 15:59:33.524 INFO kablam! warning: method is never used: `new`
Oct 12 15:59:33.524 INFO kablam!   --> src/trans.rs:13:5
Oct 12 15:59:33.524 INFO kablam!    |
Oct 12 15:59:33.524 INFO kablam! 13 |     fn new(available: usize) -> Self {
Oct 12 15:59:33.524 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:59:33.524 INFO kablam! 
Oct 12 15:59:33.524 INFO kablam! warning: method is never used: `alloc`
Oct 12 15:59:33.524 INFO kablam!   --> src/trans.rs:17:5
Oct 12 15:59:33.524 INFO kablam!    |
Oct 12 15:59:33.524 INFO kablam! 17 |     fn alloc(&mut self) -> Option<usize> {
Oct 12 15:59:33.524 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:59:33.524 INFO kablam! 
Oct 12 15:59:33.524 INFO kablam! warning: function is never used: `module`
Oct 12 15:59:33.524 INFO kablam!  --> src/validate.rs:4:1
Oct 12 15:59:33.524 INFO kablam!   |
Oct 12 15:59:33.524 INFO kablam! 4 | pub fn module(items: &[Item]) -> Result<(), Error> {
Oct 12 15:59:33.524 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:59:33.524 INFO kablam! 
Oct 12 15:59:33.528 INFO kablam! warning: function is never used: `static_blocks_are_unique`
Oct 12 15:59:33.529 INFO kablam!   --> src/validate.rs:12:1
Oct 12 15:59:33.529 INFO kablam!    |
Oct 12 15:59:33.529 INFO kablam! 12 | pub(crate) fn static_blocks_are_unique(items: &[Item]) -> Result<(), Error> {
Oct 12 15:59:33.529 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:59:33.530 INFO kablam! 
Oct 12 15:59:33.530 INFO kablam! warning: function is never used: `item_names_are_unique`
Oct 12 15:59:33.530 INFO kablam!   --> src/validate.rs:27:1
Oct 12 15:59:33.530 INFO kablam!    |
Oct 12 15:59:33.531 INFO kablam! 27 | pub(crate) fn item_names_are_unique(items: &[Item]) -> Result<(), Error> {
Oct 12 15:59:33.531 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:59:33.531 INFO kablam! 
Oct 12 15:59:33.531 INFO kablam! warning: function is never used: `functions_dont_recur`
Oct 12 15:59:33.532 INFO kablam!   --> src/validate.rs:42:1
Oct 12 15:59:33.532 INFO kablam!    |
Oct 12 15:59:33.532 INFO kablam! 42 | pub(crate) fn functions_dont_recur(items: &[Item]) -> Result<(), Error> {
Oct 12 15:59:33.532 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:59:33.533 INFO kablam! 
Oct 12 15:59:33.533 INFO kablam! warning: enum is never used: `ConstExpr`
Oct 12 15:59:33.533 INFO kablam!  --> src/picasso.rs:2:1
Oct 12 15:59:33.533 INFO kablam!   |
Oct 12 15:59:33.534 INFO kablam! 2 | pub enum ConstExpr {
Oct 12 15:59:33.534 INFO kablam!   | ^^^^^^^^^^^^^^^^^^
Oct 12 15:59:33.534 INFO kablam! 
Oct 12 15:59:33.534 INFO kablam! warning: enum is never used: `Register`
Oct 12 15:59:33.534 INFO kablam!  --> src/picasso.rs:7:1
Oct 12 15:59:33.535 INFO kablam!   |
Oct 12 15:59:33.535 INFO kablam! 7 | pub enum Register {
Oct 12 15:59:33.535 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Oct 12 15:59:33.535 INFO kablam! 
Oct 12 15:59:33.536 INFO kablam! warning: struct is never constructed: `Ref`
Oct 12 15:59:33.536 INFO kablam!   --> src/picasso.rs:13:1
Oct 12 15:59:33.536 INFO kablam!    |
Oct 12 15:59:33.536 INFO kablam! 13 | struct Ref {
Oct 12 15:59:33.537 INFO kablam!    | ^^^^^^^^^^
Oct 12 15:59:33.537 INFO kablam! 
Oct 12 15:59:33.537 INFO kablam! warning: struct is never constructed: `Builder`
Oct 12 15:59:33.538 INFO kablam!   --> src/picasso.rs:17:1
Oct 12 15:59:33.538 INFO kablam!    |
Oct 12 15:59:33.538 INFO kablam! 17 | struct Builder {
Oct 12 15:59:33.538 INFO kablam!    | ^^^^^^^^^^^^^^
Oct 12 15:59:33.538 INFO kablam! 
Oct 12 15:59:34.090 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 11.84s
Oct 12 15:59:34.100 INFO kablam! su: No module specific data is present
Oct 12 15:59:34.527 INFO running `"docker" "rm" "-f" "9cc7543265de84a0f27881efb167894f821ecae011c162c4a4e6b9c23d831da2"`
Oct 12 15:59:34.769 INFO blam! 9cc7543265de84a0f27881efb167894f821ecae011c162c4a4e6b9c23d831da2