Dec 11 12:08:52.500 INFO checking panicbit/ross against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 12:08:52.500 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 11 12:08:52.920 INFO [stdout] cf1af2e6f2128d51f46a20695e191da5259d3d1560145fc5eb90227d085661bf
Dec 11 12:08:52.922 INFO running `"docker" "start" "-a" "cf1af2e6f2128d51f46a20695e191da5259d3d1560145fc5eb90227d085661bf"`
Dec 11 12:08:54.316 INFO [stderr] usermod: no changes
Dec 11 12:08:54.424 INFO [stderr]     Checking libc v0.2.35
Dec 11 12:08:54.424 INFO [stderr]    Compiling pest v1.0.1
Dec 11 12:08:54.424 INFO [stderr]    Compiling syn v0.10.8
Dec 11 12:08:54.424 INFO [stderr]     Checking itertools v0.7.6
Dec 11 12:08:57.682 INFO [stderr]     Checking backtrace-sys v0.1.16
Dec 11 12:08:58.168 INFO [stderr]     Checking backtrace v0.3.5
Dec 11 12:08:59.304 INFO [stderr]     Checking failure v0.1.1
Dec 11 12:09:02.871 INFO [stderr]    Compiling pest_derive v1.0.1
Dec 11 12:09:07.332 INFO [stderr]     Checking ross v0.1.0 (/source)
Dec 11 12:09:07.987 INFO [stderr] warning: unused `#[macro_use]` import
Dec 11 12:09:07.987 INFO [stderr]  --> src/lib.rs:2:1
Dec 11 12:09:07.987 INFO [stderr]   |
Dec 11 12:09:07.988 INFO [stderr] 2 | #[macro_use] extern crate pest;
Dec 11 12:09:07.988 INFO [stderr]   | ^^^^^^^^^^^^
Dec 11 12:09:07.988 INFO [stderr]   |
Dec 11 12:09:07.988 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 12:09:07.988 INFO [stderr] 
Dec 11 12:09:08.076 INFO [stderr] warning: unused import: `ast::*`
Dec 11 12:09:08.076 INFO [stderr]  --> src/tests.rs:1:5
Dec 11 12:09:08.076 INFO [stderr]   |
Dec 11 12:09:08.076 INFO [stderr] 1 | use ast::*;
Dec 11 12:09:08.076 INFO [stderr]   |     ^^^^^^
Dec 11 12:09:08.076 INFO [stderr]   |
Dec 11 12:09:08.076 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 12:09:08.076 INFO [stderr] 
Dec 11 12:09:08.268 INFO [stderr] warning: unreachable expression
Dec 11 12:09:08.268 INFO [stderr]   --> src/parser.rs:32:5
Dec 11 12:09:08.268 INFO [stderr]    |
Dec 11 12:09:08.268 INFO [stderr] 32 |     Ok(module)
Dec 11 12:09:08.268 INFO [stderr]    |     ^^^^^^^^^^
Dec 11 12:09:08.268 INFO [stderr]    |
Dec 11 12:09:08.268 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 11 12:09:08.268 INFO [stderr] 
Dec 11 12:09:08.392 INFO [stderr] warning: unreachable expression
Dec 11 12:09:08.392 INFO [stderr]   --> src/parser.rs:32:5
Dec 11 12:09:08.392 INFO [stderr]    |
Dec 11 12:09:08.392 INFO [stderr] 32 |     Ok(module)
Dec 11 12:09:08.392 INFO [stderr]    |     ^^^^^^^^^^
Dec 11 12:09:08.392 INFO [stderr]    |
Dec 11 12:09:08.392 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 11 12:09:08.392 INFO [stderr] 
Dec 11 12:09:08.896 INFO [stderr] warning: struct is never constructed: `Scope`
Dec 11 12:09:08.897 INFO [stderr]  --> src/trans.rs:2:1
Dec 11 12:09:08.897 INFO [stderr]   |
Dec 11 12:09:08.897 INFO [stderr] 2 | struct Scope {
Dec 11 12:09:08.898 INFO [stderr]   | ^^^^^^^^^^^^
Dec 11 12:09:08.898 INFO [stderr]   |
Dec 11 12:09:08.898 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 12:09:08.898 INFO [stderr] 
Dec 11 12:09:08.898 INFO [stderr] warning: method is never used: `new`
Dec 11 12:09:08.898 INFO [stderr]   --> src/trans.rs:13:5
Dec 11 12:09:08.898 INFO [stderr]    |
Dec 11 12:09:08.898 INFO [stderr] 13 |     fn new(available: usize) -> Self {
Dec 11 12:09:08.898 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:09:08.898 INFO [stderr] 
Dec 11 12:09:08.898 INFO [stderr] warning: method is never used: `alloc`
Dec 11 12:09:08.898 INFO [stderr]   --> src/trans.rs:17:5
Dec 11 12:09:08.898 INFO [stderr]    |
Dec 11 12:09:08.898 INFO [stderr] 17 |     fn alloc(&mut self) -> Option<usize> {
Dec 11 12:09:08.898 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:09:08.898 INFO [stderr] 
Dec 11 12:09:08.898 INFO [stderr] warning: function is never used: `module`
Dec 11 12:09:08.898 INFO [stderr]  --> src/validate.rs:4:1
Dec 11 12:09:08.898 INFO [stderr]   |
Dec 11 12:09:08.898 INFO [stderr] 4 | pub fn module(items: &[Item]) -> Result<(), Error> {
Dec 11 12:09:08.898 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:09:08.898 INFO [stderr] 
Dec 11 12:09:08.898 INFO [stderr] warning: function is never used: `static_blocks_are_unique`
Dec 11 12:09:08.898 INFO [stderr]   --> src/validate.rs:12:1
Dec 11 12:09:08.898 INFO [stderr]    |
Dec 11 12:09:08.898 INFO [stderr] 12 | pub(crate) fn static_blocks_are_unique(items: &[Item]) -> Result<(), Error> {
Dec 11 12:09:08.898 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:09:08.898 INFO [stderr] 
Dec 11 12:09:08.898 INFO [stderr] warning: function is never used: `item_names_are_unique`
Dec 11 12:09:08.898 INFO [stderr]   --> src/validate.rs:27:1
Dec 11 12:09:08.898 INFO [stderr]    |
Dec 11 12:09:08.898 INFO [stderr] 27 | pub(crate) fn item_names_are_unique(items: &[Item]) -> Result<(), Error> {
Dec 11 12:09:08.898 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:09:08.898 INFO [stderr] 
Dec 11 12:09:08.898 INFO [stderr] warning: function is never used: `functions_dont_recur`
Dec 11 12:09:08.898 INFO [stderr]   --> src/validate.rs:42:1
Dec 11 12:09:08.898 INFO [stderr]    |
Dec 11 12:09:08.898 INFO [stderr] 42 | pub(crate) fn functions_dont_recur(items: &[Item]) -> Result<(), Error> {
Dec 11 12:09:08.898 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:09:08.898 INFO [stderr] 
Dec 11 12:09:08.898 INFO [stderr] warning: enum is never used: `ConstExpr`
Dec 11 12:09:08.898 INFO [stderr]  --> src/picasso.rs:2:1
Dec 11 12:09:08.898 INFO [stderr]   |
Dec 11 12:09:08.898 INFO [stderr] 2 | pub enum ConstExpr {
Dec 11 12:09:08.898 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 11 12:09:08.898 INFO [stderr] 
Dec 11 12:09:08.898 INFO [stderr] warning: enum is never used: `Register`
Dec 11 12:09:08.898 INFO [stderr]  --> src/picasso.rs:7:1
Dec 11 12:09:08.898 INFO [stderr]   |
Dec 11 12:09:08.898 INFO [stderr] 7 | pub enum Register {
Dec 11 12:09:08.898 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 11 12:09:08.898 INFO [stderr] 
Dec 11 12:09:08.898 INFO [stderr] warning: struct is never constructed: `Ref`
Dec 11 12:09:08.898 INFO [stderr]   --> src/picasso.rs:13:1
Dec 11 12:09:08.898 INFO [stderr]    |
Dec 11 12:09:08.898 INFO [stderr] 13 | struct Ref {
Dec 11 12:09:08.898 INFO [stderr]    | ^^^^^^^^^^
Dec 11 12:09:08.898 INFO [stderr] 
Dec 11 12:09:08.898 INFO [stderr] warning: struct is never constructed: `Builder`
Dec 11 12:09:08.898 INFO [stderr]   --> src/picasso.rs:17:1
Dec 11 12:09:08.898 INFO [stderr]    |
Dec 11 12:09:08.898 INFO [stderr] 17 | struct Builder {
Dec 11 12:09:08.898 INFO [stderr]    | ^^^^^^^^^^^^^^
Dec 11 12:09:08.898 INFO [stderr] 
Dec 11 12:09:08.900 INFO [stderr] warning: function is never used: `main`
Dec 11 12:09:08.900 INFO [stderr]   --> src/lib.rs:17:1
Dec 11 12:09:08.900 INFO [stderr]    |
Dec 11 12:09:08.900 INFO [stderr] 17 | fn main() {
Dec 11 12:09:08.900 INFO [stderr]    | ^^^^^^^^^
Dec 11 12:09:08.900 INFO [stderr] 
Dec 11 12:09:09.136 INFO [stderr] warning: struct is never constructed: `Scope`
Dec 11 12:09:09.136 INFO [stderr]  --> src/trans.rs:2:1
Dec 11 12:09:09.136 INFO [stderr]   |
Dec 11 12:09:09.136 INFO [stderr] 2 | struct Scope {
Dec 11 12:09:09.136 INFO [stderr]   | ^^^^^^^^^^^^
Dec 11 12:09:09.136 INFO [stderr]   |
Dec 11 12:09:09.136 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 12:09:09.136 INFO [stderr] 
Dec 11 12:09:09.136 INFO [stderr] warning: method is never used: `new`
Dec 11 12:09:09.136 INFO [stderr]   --> src/trans.rs:13:5
Dec 11 12:09:09.136 INFO [stderr]    |
Dec 11 12:09:09.136 INFO [stderr] 13 |     fn new(available: usize) -> Self {
Dec 11 12:09:09.136 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:09:09.136 INFO [stderr] 
Dec 11 12:09:09.136 INFO [stderr] warning: method is never used: `alloc`
Dec 11 12:09:09.136 INFO [stderr]   --> src/trans.rs:17:5
Dec 11 12:09:09.136 INFO [stderr]    |
Dec 11 12:09:09.136 INFO [stderr] 17 |     fn alloc(&mut self) -> Option<usize> {
Dec 11 12:09:09.136 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:09:09.136 INFO [stderr] 
Dec 11 12:09:09.136 INFO [stderr] warning: function is never used: `module`
Dec 11 12:09:09.136 INFO [stderr]  --> src/validate.rs:4:1
Dec 11 12:09:09.136 INFO [stderr]   |
Dec 11 12:09:09.136 INFO [stderr] 4 | pub fn module(items: &[Item]) -> Result<(), Error> {
Dec 11 12:09:09.136 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:09:09.136 INFO [stderr] 
Dec 11 12:09:09.136 INFO [stderr] warning: function is never used: `static_blocks_are_unique`
Dec 11 12:09:09.136 INFO [stderr]   --> src/validate.rs:12:1
Dec 11 12:09:09.136 INFO [stderr]    |
Dec 11 12:09:09.136 INFO [stderr] 12 | pub(crate) fn static_blocks_are_unique(items: &[Item]) -> Result<(), Error> {
Dec 11 12:09:09.136 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:09:09.136 INFO [stderr] 
Dec 11 12:09:09.136 INFO [stderr] warning: function is never used: `item_names_are_unique`
Dec 11 12:09:09.136 INFO [stderr]   --> src/validate.rs:27:1
Dec 11 12:09:09.136 INFO [stderr]    |
Dec 11 12:09:09.136 INFO [stderr] 27 | pub(crate) fn item_names_are_unique(items: &[Item]) -> Result<(), Error> {
Dec 11 12:09:09.136 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:09:09.136 INFO [stderr] 
Dec 11 12:09:09.136 INFO [stderr] warning: function is never used: `functions_dont_recur`
Dec 11 12:09:09.136 INFO [stderr]   --> src/validate.rs:42:1
Dec 11 12:09:09.136 INFO [stderr]    |
Dec 11 12:09:09.136 INFO [stderr] 42 | pub(crate) fn functions_dont_recur(items: &[Item]) -> Result<(), Error> {
Dec 11 12:09:09.137 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:09:09.137 INFO [stderr] 
Dec 11 12:09:09.137 INFO [stderr] warning: enum is never used: `ConstExpr`
Dec 11 12:09:09.137 INFO [stderr]  --> src/picasso.rs:2:1
Dec 11 12:09:09.137 INFO [stderr]   |
Dec 11 12:09:09.137 INFO [stderr] 2 | pub enum ConstExpr {
Dec 11 12:09:09.137 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 11 12:09:09.137 INFO [stderr] 
Dec 11 12:09:09.137 INFO [stderr] warning: enum is never used: `Register`
Dec 11 12:09:09.137 INFO [stderr]  --> src/picasso.rs:7:1
Dec 11 12:09:09.137 INFO [stderr]   |
Dec 11 12:09:09.137 INFO [stderr] 7 | pub enum Register {
Dec 11 12:09:09.137 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 11 12:09:09.137 INFO [stderr] 
Dec 11 12:09:09.137 INFO [stderr] warning: struct is never constructed: `Ref`
Dec 11 12:09:09.137 INFO [stderr]   --> src/picasso.rs:13:1
Dec 11 12:09:09.137 INFO [stderr]    |
Dec 11 12:09:09.137 INFO [stderr] 13 | struct Ref {
Dec 11 12:09:09.137 INFO [stderr]    | ^^^^^^^^^^
Dec 11 12:09:09.137 INFO [stderr] 
Dec 11 12:09:09.137 INFO [stderr] warning: struct is never constructed: `Builder`
Dec 11 12:09:09.137 INFO [stderr]   --> src/picasso.rs:17:1
Dec 11 12:09:09.137 INFO [stderr]    |
Dec 11 12:09:09.137 INFO [stderr] 17 | struct Builder {
Dec 11 12:09:09.137 INFO [stderr]    | ^^^^^^^^^^^^^^
Dec 11 12:09:09.137 INFO [stderr] 
Dec 11 12:09:09.780 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.43s
Dec 11 12:09:09.798 INFO [stderr] su: No module specific data is present
Dec 11 12:09:10.354 INFO running `"docker" "inspect" "cf1af2e6f2128d51f46a20695e191da5259d3d1560145fc5eb90227d085661bf"`
Dec 11 12:09:10.626 INFO running `"docker" "rm" "-f" "cf1af2e6f2128d51f46a20695e191da5259d3d1560145fc5eb90227d085661bf"`
Dec 11 12:09:10.944 INFO [stdout] cf1af2e6f2128d51f46a20695e191da5259d3d1560145fc5eb90227d085661bf