Dec 05 11:51:21.689 INFO testing panicbit/ross against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 05 11:51:21.690 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt build --frozen" "-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"`
Dec 05 11:51:22.175 INFO [stdout] 4da8fb2c6078c25343ff6b157e2f18b60621cc1cbb1c28f5d0b5ce3339c4df77
Dec 05 11:51:22.177 INFO running `"docker" "start" "-a" "4da8fb2c6078c25343ff6b157e2f18b60621cc1cbb1c28f5d0b5ce3339c4df77"`
Dec 05 11:51:23.322 INFO [stderr] usermod: no changes
Dec 05 11:51:23.492 INFO [stderr]    Compiling pest v1.0.1
Dec 05 11:51:23.493 INFO [stderr]    Compiling syn v0.10.8
Dec 05 11:51:23.494 INFO [stderr]    Compiling itertools v0.7.6
Dec 05 11:51:23.497 INFO [stderr]    Compiling failure v0.1.1
Dec 05 11:51:28.100 INFO [stderr]    Compiling pest_derive v1.0.1
Dec 05 11:51:32.504 INFO [stderr]    Compiling ross v0.1.0 (/source)
Dec 05 11:51:32.874 INFO [stderr] warning: unused `#[macro_use]` import
Dec 05 11:51:32.874 INFO [stderr]  --> src/lib.rs:2:1
Dec 05 11:51:32.874 INFO [stderr]   |
Dec 05 11:51:32.874 INFO [stderr] 2 | #[macro_use] extern crate pest;
Dec 05 11:51:32.874 INFO [stderr]   | ^^^^^^^^^^^^
Dec 05 11:51:32.874 INFO [stderr]   |
Dec 05 11:51:32.874 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 11:51:32.874 INFO [stderr] 
Dec 05 11:51:33.116 INFO [stderr] warning: unreachable expression
Dec 05 11:51:33.116 INFO [stderr]   --> src/parser.rs:32:5
Dec 05 11:51:33.116 INFO [stderr]    |
Dec 05 11:51:33.116 INFO [stderr] 32 |     Ok(module)
Dec 05 11:51:33.116 INFO [stderr]    |     ^^^^^^^^^^
Dec 05 11:51:33.116 INFO [stderr]    |
Dec 05 11:51:33.116 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 05 11:51:33.116 INFO [stderr] 
Dec 05 11:51:33.550 INFO [stderr] warning: struct is never constructed: `Scope`
Dec 05 11:51:33.551 INFO [stderr]  --> src/trans.rs:2:1
Dec 05 11:51:33.551 INFO [stderr]   |
Dec 05 11:51:33.551 INFO [stderr] 2 | struct Scope {
Dec 05 11:51:33.551 INFO [stderr]   | ^^^^^^^^^^^^
Dec 05 11:51:33.551 INFO [stderr]   |
Dec 05 11:51:33.551 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 11:51:33.551 INFO [stderr] 
Dec 05 11:51:33.551 INFO [stderr] warning: method is never used: `new`
Dec 05 11:51:33.551 INFO [stderr]   --> src/trans.rs:13:5
Dec 05 11:51:33.551 INFO [stderr]    |
Dec 05 11:51:33.551 INFO [stderr] 13 |     fn new(available: usize) -> Self {
Dec 05 11:51:33.551 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 11:51:33.551 INFO [stderr] 
Dec 05 11:51:33.551 INFO [stderr] warning: method is never used: `alloc`
Dec 05 11:51:33.551 INFO [stderr]   --> src/trans.rs:17:5
Dec 05 11:51:33.551 INFO [stderr]    |
Dec 05 11:51:33.551 INFO [stderr] 17 |     fn alloc(&mut self) -> Option<usize> {
Dec 05 11:51:33.551 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 11:51:33.551 INFO [stderr] 
Dec 05 11:51:33.551 INFO [stderr] warning: function is never used: `module`
Dec 05 11:51:33.551 INFO [stderr]  --> src/validate.rs:4:1
Dec 05 11:51:33.551 INFO [stderr]   |
Dec 05 11:51:33.551 INFO [stderr] 4 | pub fn module(items: &[Item]) -> Result<(), Error> {
Dec 05 11:51:33.551 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 11:51:33.551 INFO [stderr] 
Dec 05 11:51:33.551 INFO [stderr] warning: function is never used: `static_blocks_are_unique`
Dec 05 11:51:33.551 INFO [stderr]   --> src/validate.rs:12:1
Dec 05 11:51:33.551 INFO [stderr]    |
Dec 05 11:51:33.551 INFO [stderr] 12 | pub(crate) fn static_blocks_are_unique(items: &[Item]) -> Result<(), Error> {
Dec 05 11:51:33.551 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 11:51:33.551 INFO [stderr] 
Dec 05 11:51:33.551 INFO [stderr] warning: function is never used: `item_names_are_unique`
Dec 05 11:51:33.551 INFO [stderr]   --> src/validate.rs:27:1
Dec 05 11:51:33.551 INFO [stderr]    |
Dec 05 11:51:33.551 INFO [stderr] 27 | pub(crate) fn item_names_are_unique(items: &[Item]) -> Result<(), Error> {
Dec 05 11:51:33.551 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 11:51:33.551 INFO [stderr] 
Dec 05 11:51:33.551 INFO [stderr] warning: function is never used: `functions_dont_recur`
Dec 05 11:51:33.551 INFO [stderr]   --> src/validate.rs:42:1
Dec 05 11:51:33.551 INFO [stderr]    |
Dec 05 11:51:33.551 INFO [stderr] 42 | pub(crate) fn functions_dont_recur(items: &[Item]) -> Result<(), Error> {
Dec 05 11:51:33.551 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 11:51:33.551 INFO [stderr] 
Dec 05 11:51:33.551 INFO [stderr] warning: enum is never used: `ConstExpr`
Dec 05 11:51:33.551 INFO [stderr]  --> src/picasso.rs:2:1
Dec 05 11:51:33.551 INFO [stderr]   |
Dec 05 11:51:33.551 INFO [stderr] 2 | pub enum ConstExpr {
Dec 05 11:51:33.551 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 05 11:51:33.551 INFO [stderr] 
Dec 05 11:51:33.551 INFO [stderr] warning: enum is never used: `Register`
Dec 05 11:51:33.551 INFO [stderr]  --> src/picasso.rs:7:1
Dec 05 11:51:33.551 INFO [stderr]   |
Dec 05 11:51:33.551 INFO [stderr] 7 | pub enum Register {
Dec 05 11:51:33.551 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 05 11:51:33.551 INFO [stderr] 
Dec 05 11:51:33.551 INFO [stderr] warning: struct is never constructed: `Ref`
Dec 05 11:51:33.551 INFO [stderr]   --> src/picasso.rs:13:1
Dec 05 11:51:33.551 INFO [stderr]    |
Dec 05 11:51:33.551 INFO [stderr] 13 | struct Ref {
Dec 05 11:51:33.551 INFO [stderr]    | ^^^^^^^^^^
Dec 05 11:51:33.552 INFO [stderr] 
Dec 05 11:51:33.552 INFO [stderr] warning: struct is never constructed: `Builder`
Dec 05 11:51:33.552 INFO [stderr]   --> src/picasso.rs:17:1
Dec 05 11:51:33.552 INFO [stderr]    |
Dec 05 11:51:33.552 INFO [stderr] 17 | struct Builder {
Dec 05 11:51:33.552 INFO [stderr]    | ^^^^^^^^^^^^^^
Dec 05 11:51:33.552 INFO [stderr] 
Dec 05 11:51:33.552 INFO [stderr] warning: function is never used: `main`
Dec 05 11:51:33.552 INFO [stderr]   --> src/lib.rs:17:1
Dec 05 11:51:33.552 INFO [stderr]    |
Dec 05 11:51:33.552 INFO [stderr] 17 | fn main() {
Dec 05 11:51:33.552 INFO [stderr]    | ^^^^^^^^^
Dec 05 11:51:33.552 INFO [stderr] 
Dec 05 11:51:35.503 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.14s
Dec 05 11:51:35.509 INFO [stderr] su: No module specific data is present
Dec 05 11:51:35.825 INFO running `"docker" "inspect" "4da8fb2c6078c25343ff6b157e2f18b60621cc1cbb1c28f5d0b5ce3339c4df77"`
Dec 05 11:51:35.893 INFO running `"docker" "rm" "-f" "4da8fb2c6078c25343ff6b157e2f18b60621cc1cbb1c28f5d0b5ce3339c4df77"`
Dec 05 11:51:36.006 INFO [stdout] 4da8fb2c6078c25343ff6b157e2f18b60621cc1cbb1c28f5d0b5ce3339c4df77
Dec 05 11:51:36.010 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --frozen --no-run" "-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"`
Dec 05 11:51:36.216 INFO [stdout] d36f4ee042cff15f4d9d0b9352f4315547801193a259a2c74c5e241cb4febc8e
Dec 05 11:51:36.218 INFO running `"docker" "start" "-a" "d36f4ee042cff15f4d9d0b9352f4315547801193a259a2c74c5e241cb4febc8e"`
Dec 05 11:51:36.665 INFO [stderr] usermod: no changes
Dec 05 11:51:36.708 INFO [stderr]    Compiling ross v0.1.0 (/source)
Dec 05 11:51:37.141 INFO [stderr] warning: unused import: `ast::*`
Dec 05 11:51:37.141 INFO [stderr]  --> src/tests.rs:1:5
Dec 05 11:51:37.141 INFO [stderr]   |
Dec 05 11:51:37.141 INFO [stderr] 1 | use ast::*;
Dec 05 11:51:37.141 INFO [stderr]   |     ^^^^^^
Dec 05 11:51:37.141 INFO [stderr]   |
Dec 05 11:51:37.141 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 11:51:37.141 INFO [stderr] 
Dec 05 11:51:37.408 INFO [stderr] warning: unreachable expression
Dec 05 11:51:37.408 INFO [stderr]   --> src/parser.rs:32:5
Dec 05 11:51:37.408 INFO [stderr]    |
Dec 05 11:51:37.408 INFO [stderr] 32 |     Ok(module)
Dec 05 11:51:37.408 INFO [stderr]    |     ^^^^^^^^^^
Dec 05 11:51:37.408 INFO [stderr]    |
Dec 05 11:51:37.408 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 05 11:51:37.408 INFO [stderr] 
Dec 05 11:51:37.781 INFO [stderr] warning: struct is never constructed: `Scope`
Dec 05 11:51:37.781 INFO [stderr]  --> src/trans.rs:2:1
Dec 05 11:51:37.781 INFO [stderr]   |
Dec 05 11:51:37.781 INFO [stderr] 2 | struct Scope {
Dec 05 11:51:37.781 INFO [stderr]   | ^^^^^^^^^^^^
Dec 05 11:51:37.781 INFO [stderr]   |
Dec 05 11:51:37.781 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 11:51:37.781 INFO [stderr] 
Dec 05 11:51:37.781 INFO [stderr] warning: method is never used: `new`
Dec 05 11:51:37.781 INFO [stderr]   --> src/trans.rs:13:5
Dec 05 11:51:37.781 INFO [stderr]    |
Dec 05 11:51:37.781 INFO [stderr] 13 |     fn new(available: usize) -> Self {
Dec 05 11:51:37.781 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 11:51:37.781 INFO [stderr] 
Dec 05 11:51:37.781 INFO [stderr] warning: method is never used: `alloc`
Dec 05 11:51:37.781 INFO [stderr]   --> src/trans.rs:17:5
Dec 05 11:51:37.781 INFO [stderr]    |
Dec 05 11:51:37.781 INFO [stderr] 17 |     fn alloc(&mut self) -> Option<usize> {
Dec 05 11:51:37.781 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 11:51:37.781 INFO [stderr] 
Dec 05 11:51:37.781 INFO [stderr] warning: function is never used: `module`
Dec 05 11:51:37.781 INFO [stderr]  --> src/validate.rs:4:1
Dec 05 11:51:37.781 INFO [stderr]   |
Dec 05 11:51:37.781 INFO [stderr] 4 | pub fn module(items: &[Item]) -> Result<(), Error> {
Dec 05 11:51:37.781 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 11:51:37.781 INFO [stderr] 
Dec 05 11:51:37.781 INFO [stderr] warning: function is never used: `static_blocks_are_unique`
Dec 05 11:51:37.781 INFO [stderr]   --> src/validate.rs:12:1
Dec 05 11:51:37.781 INFO [stderr]    |
Dec 05 11:51:37.781 INFO [stderr] 12 | pub(crate) fn static_blocks_are_unique(items: &[Item]) -> Result<(), Error> {
Dec 05 11:51:37.781 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 11:51:37.781 INFO [stderr] 
Dec 05 11:51:37.781 INFO [stderr] warning: function is never used: `item_names_are_unique`
Dec 05 11:51:37.781 INFO [stderr]   --> src/validate.rs:27:1
Dec 05 11:51:37.781 INFO [stderr]    |
Dec 05 11:51:37.781 INFO [stderr] 27 | pub(crate) fn item_names_are_unique(items: &[Item]) -> Result<(), Error> {
Dec 05 11:51:37.781 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 11:51:37.781 INFO [stderr] 
Dec 05 11:51:37.781 INFO [stderr] warning: function is never used: `functions_dont_recur`
Dec 05 11:51:37.781 INFO [stderr]   --> src/validate.rs:42:1
Dec 05 11:51:37.781 INFO [stderr]    |
Dec 05 11:51:37.781 INFO [stderr] 42 | pub(crate) fn functions_dont_recur(items: &[Item]) -> Result<(), Error> {
Dec 05 11:51:37.781 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 11:51:37.781 INFO [stderr] 
Dec 05 11:51:37.782 INFO [stderr] warning: enum is never used: `ConstExpr`
Dec 05 11:51:37.782 INFO [stderr]  --> src/picasso.rs:2:1
Dec 05 11:51:37.782 INFO [stderr]   |
Dec 05 11:51:37.782 INFO [stderr] 2 | pub enum ConstExpr {
Dec 05 11:51:37.782 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 05 11:51:37.782 INFO [stderr] 
Dec 05 11:51:37.782 INFO [stderr] warning: enum is never used: `Register`
Dec 05 11:51:37.782 INFO [stderr]  --> src/picasso.rs:7:1
Dec 05 11:51:37.782 INFO [stderr]   |
Dec 05 11:51:37.782 INFO [stderr] 7 | pub enum Register {
Dec 05 11:51:37.782 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 05 11:51:37.782 INFO [stderr] 
Dec 05 11:51:37.782 INFO [stderr] warning: struct is never constructed: `Ref`
Dec 05 11:51:37.782 INFO [stderr]   --> src/picasso.rs:13:1
Dec 05 11:51:37.782 INFO [stderr]    |
Dec 05 11:51:37.782 INFO [stderr] 13 | struct Ref {
Dec 05 11:51:37.782 INFO [stderr]    | ^^^^^^^^^^
Dec 05 11:51:37.782 INFO [stderr] 
Dec 05 11:51:37.782 INFO [stderr] warning: struct is never constructed: `Builder`
Dec 05 11:51:37.782 INFO [stderr]   --> src/picasso.rs:17:1
Dec 05 11:51:37.782 INFO [stderr]    |
Dec 05 11:51:37.782 INFO [stderr] 17 | struct Builder {
Dec 05 11:51:37.782 INFO [stderr]    | ^^^^^^^^^^^^^^
Dec 05 11:51:37.782 INFO [stderr] 
Dec 05 11:51:38.816 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.12s
Dec 05 11:51:38.816 INFO [stderr] su: No module specific data is present
Dec 05 11:51:39.272 INFO running `"docker" "inspect" "d36f4ee042cff15f4d9d0b9352f4315547801193a259a2c74c5e241cb4febc8e"`
Dec 05 11:51:39.524 INFO running `"docker" "rm" "-f" "d36f4ee042cff15f4d9d0b9352f4315547801193a259a2c74c5e241cb4febc8e"`
Dec 05 11:51:39.892 INFO [stdout] d36f4ee042cff15f4d9d0b9352f4315547801193a259a2c74c5e241cb4febc8e