Dec 13 07:55:42.442 INFO testing panicbit/ross against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 07:55:42.442 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 07:55:42.829 INFO [stdout] 3b694b2a218d242c85d1d9a5f38e034e06a788ef14fdac82256c04936a77eedf
Dec 13 07:55:42.881 INFO running `"docker" "start" "-a" "3b694b2a218d242c85d1d9a5f38e034e06a788ef14fdac82256c04936a77eedf"`
Dec 13 07:55:44.139 INFO [stderr] usermod: no changes
Dec 13 07:55:44.223 INFO [stderr]    Compiling pest v1.0.1
Dec 13 07:55:44.223 INFO [stderr]    Compiling itertools v0.7.6
Dec 13 07:55:44.223 INFO [stderr]    Compiling backtrace-sys v0.1.16
Dec 13 07:55:44.963 INFO [stderr]    Compiling backtrace v0.3.5
Dec 13 07:55:45.772 INFO [stderr]    Compiling pest_derive v1.0.1
Dec 13 07:55:46.198 INFO [stderr]    Compiling failure v0.1.1
Dec 13 07:55:50.832 INFO [stderr]    Compiling ross v0.1.0 (/source)
Dec 13 07:55:51.299 INFO [stderr] warning: unused `#[macro_use]` import
Dec 13 07:55:51.299 INFO [stderr]  --> src/lib.rs:2:1
Dec 13 07:55:51.299 INFO [stderr]   |
Dec 13 07:55:51.299 INFO [stderr] 2 | #[macro_use] extern crate pest;
Dec 13 07:55:51.299 INFO [stderr]   | ^^^^^^^^^^^^
Dec 13 07:55:51.299 INFO [stderr]   |
Dec 13 07:55:51.299 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 07:55:51.299 INFO [stderr] 
Dec 13 07:55:51.571 INFO [stderr] warning: unreachable expression
Dec 13 07:55:51.571 INFO [stderr]   --> src/parser.rs:32:5
Dec 13 07:55:51.571 INFO [stderr]    |
Dec 13 07:55:51.571 INFO [stderr] 32 |     Ok(module)
Dec 13 07:55:51.571 INFO [stderr]    |     ^^^^^^^^^^
Dec 13 07:55:51.571 INFO [stderr]    |
Dec 13 07:55:51.571 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 13 07:55:51.571 INFO [stderr] 
Dec 13 07:55:52.019 INFO [stderr] warning: struct is never constructed: `Scope`
Dec 13 07:55:52.019 INFO [stderr]  --> src/trans.rs:2:1
Dec 13 07:55:52.019 INFO [stderr]   |
Dec 13 07:55:52.019 INFO [stderr] 2 | struct Scope {
Dec 13 07:55:52.019 INFO [stderr]   | ^^^^^^^^^^^^
Dec 13 07:55:52.019 INFO [stderr]   |
Dec 13 07:55:52.019 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 13 07:55:52.019 INFO [stderr] 
Dec 13 07:55:52.019 INFO [stderr] warning: method is never used: `new`
Dec 13 07:55:52.019 INFO [stderr]   --> src/trans.rs:13:5
Dec 13 07:55:52.019 INFO [stderr]    |
Dec 13 07:55:52.019 INFO [stderr] 13 |     fn new(available: usize) -> Self {
Dec 13 07:55:52.019 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 07:55:52.019 INFO [stderr] 
Dec 13 07:55:52.019 INFO [stderr] warning: method is never used: `alloc`
Dec 13 07:55:52.019 INFO [stderr]   --> src/trans.rs:17:5
Dec 13 07:55:52.019 INFO [stderr]    |
Dec 13 07:55:52.019 INFO [stderr] 17 |     fn alloc(&mut self) -> Option<usize> {
Dec 13 07:55:52.019 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 07:55:52.019 INFO [stderr] 
Dec 13 07:55:52.019 INFO [stderr] warning: function is never used: `module`
Dec 13 07:55:52.019 INFO [stderr]  --> src/validate.rs:4:1
Dec 13 07:55:52.019 INFO [stderr]   |
Dec 13 07:55:52.019 INFO [stderr] 4 | pub fn module(items: &[Item]) -> Result<(), Error> {
Dec 13 07:55:52.019 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 07:55:52.019 INFO [stderr] 
Dec 13 07:55:52.019 INFO [stderr] warning: function is never used: `static_blocks_are_unique`
Dec 13 07:55:52.019 INFO [stderr]   --> src/validate.rs:12:1
Dec 13 07:55:52.019 INFO [stderr]    |
Dec 13 07:55:52.019 INFO [stderr] 12 | pub(crate) fn static_blocks_are_unique(items: &[Item]) -> Result<(), Error> {
Dec 13 07:55:52.019 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 07:55:52.019 INFO [stderr] 
Dec 13 07:55:52.019 INFO [stderr] warning: function is never used: `item_names_are_unique`
Dec 13 07:55:52.019 INFO [stderr]   --> src/validate.rs:27:1
Dec 13 07:55:52.019 INFO [stderr]    |
Dec 13 07:55:52.019 INFO [stderr] 27 | pub(crate) fn item_names_are_unique(items: &[Item]) -> Result<(), Error> {
Dec 13 07:55:52.019 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 07:55:52.019 INFO [stderr] 
Dec 13 07:55:52.019 INFO [stderr] warning: function is never used: `functions_dont_recur`
Dec 13 07:55:52.019 INFO [stderr]   --> src/validate.rs:42:1
Dec 13 07:55:52.019 INFO [stderr]    |
Dec 13 07:55:52.020 INFO [stderr] 42 | pub(crate) fn functions_dont_recur(items: &[Item]) -> Result<(), Error> {
Dec 13 07:55:52.020 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 07:55:52.020 INFO [stderr] 
Dec 13 07:55:52.020 INFO [stderr] warning: enum is never used: `ConstExpr`
Dec 13 07:55:52.020 INFO [stderr]  --> src/picasso.rs:2:1
Dec 13 07:55:52.020 INFO [stderr]   |
Dec 13 07:55:52.020 INFO [stderr] 2 | pub enum ConstExpr {
Dec 13 07:55:52.020 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 13 07:55:52.020 INFO [stderr] 
Dec 13 07:55:52.020 INFO [stderr] warning: enum is never used: `Register`
Dec 13 07:55:52.020 INFO [stderr]  --> src/picasso.rs:7:1
Dec 13 07:55:52.020 INFO [stderr]   |
Dec 13 07:55:52.020 INFO [stderr] 7 | pub enum Register {
Dec 13 07:55:52.020 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 13 07:55:52.020 INFO [stderr] 
Dec 13 07:55:52.020 INFO [stderr] warning: struct is never constructed: `Ref`
Dec 13 07:55:52.020 INFO [stderr]   --> src/picasso.rs:13:1
Dec 13 07:55:52.020 INFO [stderr]    |
Dec 13 07:55:52.020 INFO [stderr] 13 | struct Ref {
Dec 13 07:55:52.020 INFO [stderr]    | ^^^^^^^^^^
Dec 13 07:55:52.020 INFO [stderr] 
Dec 13 07:55:52.020 INFO [stderr] warning: struct is never constructed: `Builder`
Dec 13 07:55:52.020 INFO [stderr]   --> src/picasso.rs:17:1
Dec 13 07:55:52.020 INFO [stderr]    |
Dec 13 07:55:52.020 INFO [stderr] 17 | struct Builder {
Dec 13 07:55:52.020 INFO [stderr]    | ^^^^^^^^^^^^^^
Dec 13 07:55:52.020 INFO [stderr] 
Dec 13 07:55:52.020 INFO [stderr] warning: function is never used: `main`
Dec 13 07:55:52.020 INFO [stderr]   --> src/lib.rs:17:1
Dec 13 07:55:52.020 INFO [stderr]    |
Dec 13 07:55:52.020 INFO [stderr] 17 | fn main() {
Dec 13 07:55:52.020 INFO [stderr]    | ^^^^^^^^^
Dec 13 07:55:52.020 INFO [stderr] 
Dec 13 07:55:53.780 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.66s
Dec 13 07:55:53.788 INFO [stderr] su: No module specific data is present
Dec 13 07:55:54.064 INFO running `"docker" "inspect" "3b694b2a218d242c85d1d9a5f38e034e06a788ef14fdac82256c04936a77eedf"`
Dec 13 07:55:54.260 INFO running `"docker" "rm" "-f" "3b694b2a218d242c85d1d9a5f38e034e06a788ef14fdac82256c04936a77eedf"`
Dec 13 07:55:54.382 INFO [stdout] 3b694b2a218d242c85d1d9a5f38e034e06a788ef14fdac82256c04936a77eedf
Dec 13 07:55:54.649 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 07:55:54.952 INFO [stdout] f619cecf5e18107b16e769c46f551d0c47a27a84f92e1154ab998e4f68bb0af0
Dec 13 07:55:54.956 INFO running `"docker" "start" "-a" "f619cecf5e18107b16e769c46f551d0c47a27a84f92e1154ab998e4f68bb0af0"`
Dec 13 07:55:55.730 INFO [stderr] usermod: no changes
Dec 13 07:55:55.760 INFO [stderr]    Compiling ross v0.1.0 (/source)
Dec 13 07:55:56.300 INFO [stderr] warning: unused import: `ast::*`
Dec 13 07:55:56.300 INFO [stderr]  --> src/tests.rs:1:5
Dec 13 07:55:56.300 INFO [stderr]   |
Dec 13 07:55:56.300 INFO [stderr] 1 | use ast::*;
Dec 13 07:55:56.300 INFO [stderr]   |     ^^^^^^
Dec 13 07:55:56.300 INFO [stderr]   |
Dec 13 07:55:56.300 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 07:55:56.300 INFO [stderr] 
Dec 13 07:55:56.619 INFO [stderr] warning: unreachable expression
Dec 13 07:55:56.619 INFO [stderr]   --> src/parser.rs:32:5
Dec 13 07:55:56.619 INFO [stderr]    |
Dec 13 07:55:56.619 INFO [stderr] 32 |     Ok(module)
Dec 13 07:55:56.619 INFO [stderr]    |     ^^^^^^^^^^
Dec 13 07:55:56.619 INFO [stderr]    |
Dec 13 07:55:56.699 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 13 07:55:56.700 INFO [stderr] 
Dec 13 07:55:57.078 INFO [stderr] warning: struct is never constructed: `Scope`
Dec 13 07:55:57.078 INFO [stderr]  --> src/trans.rs:2:1
Dec 13 07:55:57.078 INFO [stderr]   |
Dec 13 07:55:57.078 INFO [stderr] 2 | struct Scope {
Dec 13 07:55:57.078 INFO [stderr]   | ^^^^^^^^^^^^
Dec 13 07:55:57.078 INFO [stderr]   |
Dec 13 07:55:57.078 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 13 07:55:57.078 INFO [stderr] 
Dec 13 07:55:57.078 INFO [stderr] warning: method is never used: `new`
Dec 13 07:55:57.078 INFO [stderr]   --> src/trans.rs:13:5
Dec 13 07:55:57.078 INFO [stderr]    |
Dec 13 07:55:57.078 INFO [stderr] 13 |     fn new(available: usize) -> Self {
Dec 13 07:55:57.078 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 07:55:57.078 INFO [stderr] 
Dec 13 07:55:57.078 INFO [stderr] warning: method is never used: `alloc`
Dec 13 07:55:57.078 INFO [stderr]   --> src/trans.rs:17:5
Dec 13 07:55:57.078 INFO [stderr]    |
Dec 13 07:55:57.078 INFO [stderr] 17 |     fn alloc(&mut self) -> Option<usize> {
Dec 13 07:55:57.078 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 07:55:57.078 INFO [stderr] 
Dec 13 07:55:57.078 INFO [stderr] warning: function is never used: `module`
Dec 13 07:55:57.078 INFO [stderr]  --> src/validate.rs:4:1
Dec 13 07:55:57.078 INFO [stderr]   |
Dec 13 07:55:57.078 INFO [stderr] 4 | pub fn module(items: &[Item]) -> Result<(), Error> {
Dec 13 07:55:57.079 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 07:55:57.079 INFO [stderr] 
Dec 13 07:55:57.079 INFO [stderr] warning: function is never used: `static_blocks_are_unique`
Dec 13 07:55:57.079 INFO [stderr]   --> src/validate.rs:12:1
Dec 13 07:55:57.079 INFO [stderr]    |
Dec 13 07:55:57.079 INFO [stderr] 12 | pub(crate) fn static_blocks_are_unique(items: &[Item]) -> Result<(), Error> {
Dec 13 07:55:57.079 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 07:55:57.079 INFO [stderr] 
Dec 13 07:55:57.079 INFO [stderr] warning: function is never used: `item_names_are_unique`
Dec 13 07:55:57.079 INFO [stderr]   --> src/validate.rs:27:1
Dec 13 07:55:57.079 INFO [stderr]    |
Dec 13 07:55:57.079 INFO [stderr] 27 | pub(crate) fn item_names_are_unique(items: &[Item]) -> Result<(), Error> {
Dec 13 07:55:57.079 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 07:55:57.079 INFO [stderr] 
Dec 13 07:55:57.079 INFO [stderr] warning: function is never used: `functions_dont_recur`
Dec 13 07:55:57.079 INFO [stderr]   --> src/validate.rs:42:1
Dec 13 07:55:57.079 INFO [stderr]    |
Dec 13 07:55:57.079 INFO [stderr] 42 | pub(crate) fn functions_dont_recur(items: &[Item]) -> Result<(), Error> {
Dec 13 07:55:57.172 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 07:55:57.172 INFO [stderr] 
Dec 13 07:55:57.172 INFO [stderr] warning: enum is never used: `ConstExpr`
Dec 13 07:55:57.172 INFO [stderr]  --> src/picasso.rs:2:1
Dec 13 07:55:57.172 INFO [stderr]   |
Dec 13 07:55:57.172 INFO [stderr] 2 | pub enum ConstExpr {
Dec 13 07:55:57.172 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 13 07:55:57.172 INFO [stderr] 
Dec 13 07:55:57.172 INFO [stderr] warning: enum is never used: `Register`
Dec 13 07:55:57.172 INFO [stderr]  --> src/picasso.rs:7:1
Dec 13 07:55:57.172 INFO [stderr]   |
Dec 13 07:55:57.172 INFO [stderr] 7 | pub enum Register {
Dec 13 07:55:57.172 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 13 07:55:57.172 INFO [stderr] 
Dec 13 07:55:57.172 INFO [stderr] warning: struct is never constructed: `Ref`
Dec 13 07:55:57.172 INFO [stderr]   --> src/picasso.rs:13:1
Dec 13 07:55:57.172 INFO [stderr]    |
Dec 13 07:55:57.172 INFO [stderr] 13 | struct Ref {
Dec 13 07:55:57.172 INFO [stderr]    | ^^^^^^^^^^
Dec 13 07:55:57.172 INFO [stderr] 
Dec 13 07:55:57.172 INFO [stderr] warning: struct is never constructed: `Builder`
Dec 13 07:55:57.172 INFO [stderr]   --> src/picasso.rs:17:1
Dec 13 07:55:57.172 INFO [stderr]    |
Dec 13 07:55:57.172 INFO [stderr] 17 | struct Builder {
Dec 13 07:55:57.172 INFO [stderr]    | ^^^^^^^^^^^^^^
Dec 13 07:55:57.172 INFO [stderr] 
Dec 13 07:55:58.487 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.76s
Dec 13 07:55:58.490 INFO [stderr] su: No module specific data is present
Dec 13 07:55:58.903 INFO running `"docker" "inspect" "f619cecf5e18107b16e769c46f551d0c47a27a84f92e1154ab998e4f68bb0af0"`
Dec 13 07:55:59.163 INFO running `"docker" "rm" "-f" "f619cecf5e18107b16e769c46f551d0c47a27a84f92e1154ab998e4f68bb0af0"`
Dec 13 07:55:59.443 INFO [stdout] f619cecf5e18107b16e769c46f551d0c47a27a84f92e1154ab998e4f68bb0af0