[INFO] updating cached repository krstoff/error
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/krstoff/error
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/krstoff/error" "work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/krstoff/error"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/krstoff/error'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/krstoff/error" "work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/krstoff/error"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/krstoff/error'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6979828654a6a9a3ed97e2ba0390518a667839c8
[INFO] sha for GitHub repo krstoff/error: 6979828654a6a9a3ed97e2ba0390518a667839c8
[INFO] validating manifest of krstoff/error on toolchain master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of krstoff/error on toolchain try#29640c57b5f92febba0e40c50cb863c9a7ede51d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing krstoff/error
[INFO] finished frobbing krstoff/error
[INFO] frobbed toml for krstoff/error written to work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/krstoff/error/Cargo.toml
[INFO] started frobbing krstoff/error
[INFO] finished frobbing krstoff/error
[INFO] frobbed toml for krstoff/error written to work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/krstoff/error/Cargo.toml
[INFO] crate krstoff/error has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking krstoff/error against master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039 for pr-57745
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57745/worker-0/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/krstoff/error:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8e8a6edfd7bb7e0184c4e57a39607970e27fc508cbdf0bf84d738479b781cbe7
[INFO] running `"docker" "start" "-a" "8e8a6edfd7bb7e0184c4e57a39607970e27fc508cbdf0bf84d738479b781cbe7"`
[INFO] [stderr]     Checking error v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: private type `parse::parse::BinOp` in public interface (error E0446)
[INFO] [stderr]   --> src/parse/parse.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |         op: BinOp,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(private_in_public)] on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: private type `parse::parse::UnOp` in public interface (error E0446)
[INFO] [stderr]   --> src/parse/parse.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |         op: UnOp,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print`
[INFO] [stderr]   --> src/parse/lex.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn print(&self, string_pool: &StringPool) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Statement`
[INFO] [stderr]    --> src/parse/parse.rs:152:1
[INFO] [stderr]     |
[INFO] [stderr] 152 | pub enum Statement {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `statement`
[INFO] [stderr]    --> src/parse/parse.rs:156:1
[INFO] [stderr]     |
[INFO] [stderr] 156 | pub fn statement(token_stream: &mut TokenStream) -> Box<Statement> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: private type `parse::parse::BinOp` in public interface (error E0446)
[INFO] [stderr]   --> src/parse/parse.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |         op: BinOp,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(private_in_public)] on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: private type `parse::parse::UnOp` in public interface (error E0446)
[INFO] [stderr]   --> src/parse/parse.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |         op: UnOp,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print`
[INFO] [stderr]   --> src/parse/lex.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn print(&self, string_pool: &StringPool) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Statement`
[INFO] [stderr]    --> src/parse/parse.rs:152:1
[INFO] [stderr]     |
[INFO] [stderr] 152 | pub enum Statement {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `statement`
[INFO] [stderr]    --> src/parse/parse.rs:156:1
[INFO] [stderr]     |
[INFO] [stderr] 156 | pub fn statement(token_stream: &mut TokenStream) -> Box<Statement> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "8e8a6edfd7bb7e0184c4e57a39607970e27fc508cbdf0bf84d738479b781cbe7"`
[INFO] running `"docker" "rm" "-f" "8e8a6edfd7bb7e0184c4e57a39607970e27fc508cbdf0bf84d738479b781cbe7"`
[INFO] [stdout] 8e8a6edfd7bb7e0184c4e57a39607970e27fc508cbdf0bf84d738479b781cbe7