[INFO] cloning repository NikitaSmall/rust_rpn
[INFO] running `"git" "clone" "--bare" "git://github.com/NikitaSmall/rust_rpn.git" "work/cache/sources/gh/NikitaSmall/rust_rpn"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/NikitaSmall/rust_rpn'...
[INFO] running `"git" "clone" "work/cache/sources/gh/NikitaSmall/rust_rpn" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/NikitaSmall/rust_rpn"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/NikitaSmall/rust_rpn'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/NikitaSmall/rust_rpn" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/NikitaSmall/rust_rpn"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/NikitaSmall/rust_rpn'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 34a83739d911b80bb25319db4149fbd4084660a3
[INFO] sha for GitHub repo NikitaSmall/rust_rpn: 34a83739d911b80bb25319db4149fbd4084660a3
[INFO] validating manifest of NikitaSmall/rust_rpn on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of NikitaSmall/rust_rpn on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing NikitaSmall/rust_rpn
[INFO] finished frobbing NikitaSmall/rust_rpn
[INFO] frobbed toml for NikitaSmall/rust_rpn written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/NikitaSmall/rust_rpn/Cargo.toml
[INFO] started frobbing NikitaSmall/rust_rpn
[INFO] finished frobbing NikitaSmall/rust_rpn
[INFO] frobbed toml for NikitaSmall/rust_rpn written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/NikitaSmall/rust_rpn/Cargo.toml
[INFO] crate NikitaSmall/rust_rpn already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] building NikitaSmall/rust_rpn against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/NikitaSmall/rust_rpn:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] 9c23510e06f2df51d07c028b7cad46b2aaafce0c4e550490dc9aa6d707fa9547
[INFO] running `"docker" "start" "-a" "9c23510e06f2df51d07c028b7cad46b2aaafce0c4e550490dc9aa6d707fa9547"`
[INFO] [stderr]    Compiling rpn v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `raw`
[INFO] [stderr]   --> src/converter.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     raw: String,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `prededence`
[INFO] [stderr]   --> src/converter.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     prededence: HashMap<Stackable, i8>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `convert`
[INFO] [stderr]   --> src/converter.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn convert(raw: String) -> Converter {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `process`
[INFO] [stderr]   --> src/converter.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn process(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `"docker" "inspect" "9c23510e06f2df51d07c028b7cad46b2aaafce0c4e550490dc9aa6d707fa9547"`
[INFO] running `"docker" "rm" "-f" "9c23510e06f2df51d07c028b7cad46b2aaafce0c4e550490dc9aa6d707fa9547"`
[INFO] [stdout] 9c23510e06f2df51d07c028b7cad46b2aaafce0c4e550490dc9aa6d707fa9547
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/NikitaSmall/rust_rpn:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] df577019653e4b9cba97ad8f8642cffedd0407c5a80bdda986a01770354157f8
[INFO] running `"docker" "start" "-a" "df577019653e4b9cba97ad8f8642cffedd0407c5a80bdda986a01770354157f8"`
[INFO] [stderr]    Compiling rpn v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/converter.rs:95:13
[INFO] [stderr]    |
[INFO] [stderr] 95 |         let mut converter = Converter::convert(example_string);
[INFO] [stderr]    |             ----^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/converter.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let mut converter = Converter::convert(example_string);
[INFO] [stderr]     |             ----^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.62s
[INFO] running `"docker" "inspect" "df577019653e4b9cba97ad8f8642cffedd0407c5a80bdda986a01770354157f8"`
[INFO] running `"docker" "rm" "-f" "df577019653e4b9cba97ad8f8642cffedd0407c5a80bdda986a01770354157f8"`
[INFO] [stdout] df577019653e4b9cba97ad8f8642cffedd0407c5a80bdda986a01770354157f8