[INFO] updating cached repository jstnlef/rlox
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jstnlef/rlox
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jstnlef/rlox" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/jstnlef/rlox"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/jstnlef/rlox'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jstnlef/rlox" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/jstnlef/rlox"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/jstnlef/rlox'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5b2539933766d572a8c9398610d36cf33d64e0bf
[INFO] sha for GitHub repo jstnlef/rlox: 5b2539933766d572a8c9398610d36cf33d64e0bf
[INFO] validating manifest of jstnlef/rlox on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jstnlef/rlox on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jstnlef/rlox
[INFO] finished frobbing jstnlef/rlox
[INFO] frobbed toml for jstnlef/rlox written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/jstnlef/rlox/Cargo.toml
[INFO] started frobbing jstnlef/rlox
[INFO] finished frobbing jstnlef/rlox
[INFO] frobbed toml for jstnlef/rlox written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/jstnlef/rlox/Cargo.toml
[INFO] crate jstnlef/rlox already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jstnlef/rlox against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-4/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/jstnlef/rlox:/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ff30d6c4b37b434a635e9bacec1bfc05a6f01e1f5f195007fa817ee823965520
[INFO] running `"docker" "start" "-a" "ff30d6c4b37b434a635e9bacec1bfc05a6f01e1f5f195007fa817ee823965520"`
[INFO] [stderr]     Checking rlox v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lox_object.rs:10:17
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Function(Rc<Callable>),
[INFO] [stderr]    |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lox_object.rs:10:17
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Function(Rc<Callable>),
[INFO] [stderr]    |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Callable`
[INFO] [stderr]  --> src/interpreter.rs:5:29
[INFO] [stderr]   |
[INFO] [stderr] 5 | use lox_object::{LoxObject, Callable};
[INFO] [stderr]   |                             ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interpreter`
[INFO] [stderr]   --> src/native_functions.rs:13:20
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn call(&self, interpreter: &mut Interpreter, arguments: &[LoxObject]) -> RuntimeResult<LoxObject> {
[INFO] [stderr]    |                    ^^^^^^^^^^^ help: consider prefixing with an underscore: `_interpreter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arguments`
[INFO] [stderr]   --> src/native_functions.rs:13:51
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn call(&self, interpreter: &mut Interpreter, arguments: &[LoxObject]) -> RuntimeResult<LoxObject> {
[INFO] [stderr]    |                                                   ^^^^^^^^^ help: consider prefixing with an underscore: `_arguments`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Callable`
[INFO] [stderr]  --> src/interpreter.rs:5:29
[INFO] [stderr]   |
[INFO] [stderr] 5 | use lox_object::{LoxObject, Callable};
[INFO] [stderr]   |                             ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interpreter`
[INFO] [stderr]   --> src/native_functions.rs:13:20
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn call(&self, interpreter: &mut Interpreter, arguments: &[LoxObject]) -> RuntimeResult<LoxObject> {
[INFO] [stderr]    |                    ^^^^^^^^^^^ help: consider prefixing with an underscore: `_interpreter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arguments`
[INFO] [stderr]   --> src/native_functions.rs:13:51
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn call(&self, interpreter: &mut Interpreter, arguments: &[LoxObject]) -> RuntimeResult<LoxObject> {
[INFO] [stderr]    |                                                   ^^^^^^^^^ help: consider prefixing with an underscore: `_arguments`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `line_error`
[INFO] [stderr]   --> src/lox.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn line_error(&mut self, line: i32, message: &str) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `line`
[INFO] [stderr]    --> src/scanner.rs:325:5
[INFO] [stderr]     |
[INFO] [stderr] 325 |     line: i32,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `message`
[INFO] [stderr]    --> src/scanner.rs:326:5
[INFO] [stderr]     |
[INFO] [stderr] 326 |     message: String,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `globals`
[INFO] [stderr]   --> src/interpreter.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     globals: Rc<Environment>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `line_error`
[INFO] [stderr]   --> src/lox.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn line_error(&mut self, line: i32, message: &str) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `line`
[INFO] [stderr]    --> src/scanner.rs:325:5
[INFO] [stderr]     |
[INFO] [stderr] 325 |     line: i32,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `message`
[INFO] [stderr]    --> src/scanner.rs:326:5
[INFO] [stderr]     |
[INFO] [stderr] 326 |     message: String,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `globals`
[INFO] [stderr]   --> src/interpreter.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     globals: Rc<Environment>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `"docker" "inspect" "ff30d6c4b37b434a635e9bacec1bfc05a6f01e1f5f195007fa817ee823965520"`
[INFO] running `"docker" "rm" "-f" "ff30d6c4b37b434a635e9bacec1bfc05a6f01e1f5f195007fa817ee823965520"`
[INFO] [stdout] ff30d6c4b37b434a635e9bacec1bfc05a6f01e1f5f195007fa817ee823965520