[INFO] updating cached repository fplust/rlox
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fplust/rlox
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fplust/rlox" "work/ex/beta-1.38-1/sources/1.37.0/gh/fplust/rlox"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/fplust/rlox'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fplust/rlox" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fplust/rlox"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fplust/rlox'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a500cf7a1918d23bf48c7a78527405dc52e6df6f
[INFO] sha for GitHub repo fplust/rlox: a500cf7a1918d23bf48c7a78527405dc52e6df6f
[INFO] validating manifest of fplust/rlox on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fplust/rlox on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fplust/rlox
[INFO] finished frobbing fplust/rlox
[INFO] frobbed toml for fplust/rlox written to work/ex/beta-1.38-1/sources/1.37.0/gh/fplust/rlox/Cargo.toml
[INFO] started frobbing fplust/rlox
[INFO] finished frobbing fplust/rlox
[INFO] frobbed toml for fplust/rlox written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fplust/rlox/Cargo.toml
[INFO] crate fplust/rlox already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing fplust/rlox against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fplust/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] ffe1333a5ebca87e7151c41bf99841ee77afefca9b9b1be69c9f232392489185
[INFO] running `"docker" "start" "-a" "ffe1333a5ebca87e7151c41bf99841ee77afefca9b9b1be69c9f232392489185"`
[INFO] [stderr]    Compiling lox v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/scanner.rs:120:16
[INFO] [stderr]     |
[INFO] [stderr] 120 |             '0'...'9' => self.number(),
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/scanner.rs:126:16
[INFO] [stderr]     |
[INFO] [stderr] 126 |             'a'...'z' | 'A'...'Z' | '_' => self.identifier(),
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/scanner.rs:126:28
[INFO] [stderr]     |
[INFO] [stderr] 126 |             'a'...'z' | 'A'...'Z' | '_' => self.identifier(),
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/scanner.rs:158:16
[INFO] [stderr]     |
[INFO] [stderr] 158 |             '0'...'9' => true,
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/scanner.rs:164:16
[INFO] [stderr]     |
[INFO] [stderr] 164 |             'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/scanner.rs:164:28
[INFO] [stderr]     |
[INFO] [stderr] 164 |             'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/bin/gen_ast.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufWriter`, `Write`
[INFO] [stderr]  --> src/bin/gen_ast.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{BufWriter, Write};
[INFO] [stderr]   |               ^^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]    --> src/interpreter.rs:292:34
[INFO] [stderr]     |
[INFO] [stderr] 292 |     fn visit_get_expr(&mut self, expr: &Get) -> RTResult {
[INFO] [stderr]     |                                  ^^^^ help: consider prefixing with an underscore: `_expr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interpreter`
[INFO] [stderr]   --> src/lox_class.rs:20:20
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn call(&self, interpreter: &mut Interpreter, arguments: Vec<Object>) -> RTResult {
[INFO] [stderr]    |                    ^^^^^^^^^^^ help: consider prefixing with an underscore: `_interpreter`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arguments`
[INFO] [stderr]   --> src/lox_class.rs:20:51
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn call(&self, interpreter: &mut Interpreter, arguments: Vec<Object>) -> RTResult {
[INFO] [stderr]    |                                                   ^^^^^^^^^ help: consider prefixing with an underscore: `_arguments`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/lox_instance.rs:18:16
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn get(name: &String) -> Object {
[INFO] [stderr]    |                ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `synchronize`
[INFO] [stderr]    --> src/parser.rs:422:5
[INFO] [stderr]     |
[INFO] [stderr] 422 |     fn synchronize(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]   --> src/lox_instance.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn get(name: &String) -> Object {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.00s
[INFO] running `"docker" "inspect" "ffe1333a5ebca87e7151c41bf99841ee77afefca9b9b1be69c9f232392489185"`
[INFO] running `"docker" "rm" "-f" "ffe1333a5ebca87e7151c41bf99841ee77afefca9b9b1be69c9f232392489185"`
[INFO] [stdout] ffe1333a5ebca87e7151c41bf99841ee77afefca9b9b1be69c9f232392489185
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fplust/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4844ec2d17f70a0f4be1e341eeeb0af22bf1d128d4f8eab6559283b3fa7f9f6b
[INFO] running `"docker" "start" "-a" "4844ec2d17f70a0f4be1e341eeeb0af22bf1d128d4f8eab6559283b3fa7f9f6b"`
[INFO] [stderr]    Compiling lox v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/bin/gen_ast.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufWriter`, `Write`
[INFO] [stderr]  --> src/bin/gen_ast.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{BufWriter, Write};
[INFO] [stderr]   |               ^^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/scanner.rs:120:16
[INFO] [stderr]     |
[INFO] [stderr] 120 |             '0'...'9' => self.number(),
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/scanner.rs:126:16
[INFO] [stderr]     |
[INFO] [stderr] 126 |             'a'...'z' | 'A'...'Z' | '_' => self.identifier(),
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/scanner.rs:126:28
[INFO] [stderr]     |
[INFO] [stderr] 126 |             'a'...'z' | 'A'...'Z' | '_' => self.identifier(),
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/scanner.rs:158:16
[INFO] [stderr]     |
[INFO] [stderr] 158 |             '0'...'9' => true,
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/scanner.rs:164:16
[INFO] [stderr]     |
[INFO] [stderr] 164 |             'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/scanner.rs:164:28
[INFO] [stderr]     |
[INFO] [stderr] 164 |             'a'...'z' | 'A'...'Z' | '_' => true,
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]    --> src/interpreter.rs:292:34
[INFO] [stderr]     |
[INFO] [stderr] 292 |     fn visit_get_expr(&mut self, expr: &Get) -> RTResult {
[INFO] [stderr]     |                                  ^^^^ help: consider prefixing with an underscore: `_expr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interpreter`
[INFO] [stderr]   --> src/lox_class.rs:20:20
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn call(&self, interpreter: &mut Interpreter, arguments: Vec<Object>) -> RTResult {
[INFO] [stderr]    |                    ^^^^^^^^^^^ help: consider prefixing with an underscore: `_interpreter`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arguments`
[INFO] [stderr]   --> src/lox_class.rs:20:51
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn call(&self, interpreter: &mut Interpreter, arguments: Vec<Object>) -> RTResult {
[INFO] [stderr]    |                                                   ^^^^^^^^^ help: consider prefixing with an underscore: `_arguments`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/lox_instance.rs:18:16
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn get(name: &String) -> Object {
[INFO] [stderr]    |                ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `synchronize`
[INFO] [stderr]    --> src/parser.rs:422:5
[INFO] [stderr]     |
[INFO] [stderr] 422 |     fn synchronize(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]   --> src/lox_instance.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn get(name: &String) -> Object {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `"docker" "inspect" "4844ec2d17f70a0f4be1e341eeeb0af22bf1d128d4f8eab6559283b3fa7f9f6b"`
[INFO] running `"docker" "rm" "-f" "4844ec2d17f70a0f4be1e341eeeb0af22bf1d128d4f8eab6559283b3fa7f9f6b"`
[INFO] [stdout] 4844ec2d17f70a0f4be1e341eeeb0af22bf1d128d4f8eab6559283b3fa7f9f6b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fplust/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 88f42d0a9f667f3ed4b9e4801fa2862d0085cd5cdaa89286b8706e48a1a0d35c
[INFO] running `"docker" "start" "-a" "88f42d0a9f667f3ed4b9e4801fa2862d0085cd5cdaa89286b8706e48a1a0d35c"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/gen_ast-bb4807cf9a617ccc
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lox-22368d3aaf248193
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "88f42d0a9f667f3ed4b9e4801fa2862d0085cd5cdaa89286b8706e48a1a0d35c"`
[INFO] running `"docker" "rm" "-f" "88f42d0a9f667f3ed4b9e4801fa2862d0085cd5cdaa89286b8706e48a1a0d35c"`
[INFO] [stdout] 88f42d0a9f667f3ed4b9e4801fa2862d0085cd5cdaa89286b8706e48a1a0d35c