[INFO] updating cached repository panicbit/ross
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/panicbit/ross
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/panicbit/ross" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/panicbit/ross"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/panicbit/ross'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/panicbit/ross" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/panicbit/ross"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/panicbit/ross'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7b21213448e2d2148eddbcb84cfbed90e28e0737
[INFO] sha for GitHub repo panicbit/ross: 7b21213448e2d2148eddbcb84cfbed90e28e0737
[INFO] validating manifest of panicbit/ross on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of panicbit/ross on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing panicbit/ross
[INFO] finished frobbing panicbit/ross
[INFO] frobbed toml for panicbit/ross written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/panicbit/ross/Cargo.toml
[INFO] started frobbing panicbit/ross
[INFO] finished frobbing panicbit/ross
[INFO] frobbed toml for panicbit/ross written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/panicbit/ross/Cargo.toml
[INFO] crate panicbit/ross already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking panicbit/ross against master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-2/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/panicbit/ross:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0a53b049c32a9e6ed6ec2d757c65eb1a2b89b64b95ed62efde2e92b108b67f17
[INFO] running `"docker" "start" "-a" "0a53b049c32a9e6ed6ec2d757c65eb1a2b89b64b95ed62efde2e92b108b67f17"`
[INFO] [stderr]    Compiling pest v1.0.1
[INFO] [stderr]     Checking itertools v0.7.6
[INFO] [stderr]     Checking backtrace-sys v0.1.16
[INFO] [stderr]     Checking backtrace v0.3.5
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]    Compiling pest_derive v1.0.1
[INFO] [stderr]     Checking ross v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #[macro_use] extern crate pest;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ast::*`
[INFO] [stderr]  --> src/tests.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ast::*;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/parser.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     Ok(module)
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/parser.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     Ok(module)
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Scope`
[INFO] [stderr]  --> src/trans.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct Scope {
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/trans.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn new(available: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `alloc`
[INFO] [stderr]   --> src/trans.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn alloc(&mut self) -> Option<usize> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `module`
[INFO] [stderr]  --> src/validate.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn module(items: &[Item]) -> Result<(), Error> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `static_blocks_are_unique`
[INFO] [stderr]   --> src/validate.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub(crate) fn static_blocks_are_unique(items: &[Item]) -> Result<(), Error> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `item_names_are_unique`
[INFO] [stderr]   --> src/validate.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub(crate) fn item_names_are_unique(items: &[Item]) -> Result<(), Error> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `functions_dont_recur`
[INFO] [stderr]   --> src/validate.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub(crate) fn functions_dont_recur(items: &[Item]) -> Result<(), Error> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ConstExpr`
[INFO] [stderr]  --> src/picasso.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub enum ConstExpr {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Register`
[INFO] [stderr]  --> src/picasso.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum Register {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Ref`
[INFO] [stderr]   --> src/picasso.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct Ref {
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Builder`
[INFO] [stderr]   --> src/picasso.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | struct Builder {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]   --> src/lib.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn main() {
[INFO] [stderr]    | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Scope`
[INFO] [stderr]  --> src/trans.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct Scope {
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/trans.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn new(available: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `alloc`
[INFO] [stderr]   --> src/trans.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn alloc(&mut self) -> Option<usize> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `module`
[INFO] [stderr]  --> src/validate.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn module(items: &[Item]) -> Result<(), Error> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `static_blocks_are_unique`
[INFO] [stderr]   --> src/validate.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub(crate) fn static_blocks_are_unique(items: &[Item]) -> Result<(), Error> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `item_names_are_unique`
[INFO] [stderr]   --> src/validate.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub(crate) fn item_names_are_unique(items: &[Item]) -> Result<(), Error> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `functions_dont_recur`
[INFO] [stderr]   --> src/validate.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub(crate) fn functions_dont_recur(items: &[Item]) -> Result<(), Error> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ConstExpr`
[INFO] [stderr]  --> src/picasso.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub enum ConstExpr {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Register`
[INFO] [stderr]  --> src/picasso.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum Register {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Ref`
[INFO] [stderr]   --> src/picasso.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct Ref {
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Builder`
[INFO] [stderr]   --> src/picasso.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | struct Builder {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.53s
[INFO] running `"docker" "inspect" "0a53b049c32a9e6ed6ec2d757c65eb1a2b89b64b95ed62efde2e92b108b67f17"`
[INFO] running `"docker" "rm" "-f" "0a53b049c32a9e6ed6ec2d757c65eb1a2b89b64b95ed62efde2e92b108b67f17"`
[INFO] [stdout] 0a53b049c32a9e6ed6ec2d757c65eb1a2b89b64b95ed62efde2e92b108b67f17