[INFO] updating cached repository EmmaLa/MonkeyInterpreter [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/EmmaLa/MonkeyInterpreter [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/EmmaLa/MonkeyInterpreter" "work/ex/beta-1.38-1/sources/1.37.0/gh/EmmaLa/MonkeyInterpreter"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/EmmaLa/MonkeyInterpreter'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/EmmaLa/MonkeyInterpreter" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/EmmaLa/MonkeyInterpreter"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/EmmaLa/MonkeyInterpreter'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 538fab97895b45c362be501f897eecf95811dcf0 [INFO] sha for GitHub repo EmmaLa/MonkeyInterpreter: 538fab97895b45c362be501f897eecf95811dcf0 [INFO] validating manifest of EmmaLa/MonkeyInterpreter 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 EmmaLa/MonkeyInterpreter 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 EmmaLa/MonkeyInterpreter [INFO] finished frobbing EmmaLa/MonkeyInterpreter [INFO] frobbed toml for EmmaLa/MonkeyInterpreter written to work/ex/beta-1.38-1/sources/1.37.0/gh/EmmaLa/MonkeyInterpreter/Cargo.toml [INFO] started frobbing EmmaLa/MonkeyInterpreter [INFO] finished frobbing EmmaLa/MonkeyInterpreter [INFO] frobbed toml for EmmaLa/MonkeyInterpreter written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/EmmaLa/MonkeyInterpreter/Cargo.toml [INFO] crate EmmaLa/MonkeyInterpreter 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 EmmaLa/MonkeyInterpreter against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/EmmaLa/MonkeyInterpreter:/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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 432b5aadf93da20b38d613376d050e14b7d92ba57f02f5aa15b208cd6f5bceb3 [INFO] running `"docker" "start" "-a" "432b5aadf93da20b38d613376d050e14b7d92ba57f02f5aa15b208cd6f5bceb3"` [INFO] [stderr] Compiling monkey_int v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `ast::Statement::*` [INFO] [stderr] --> src/parser/mod.rs:155:7 [INFO] [stderr] | [INFO] [stderr] 155 | use ast::Statement::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `repl::Repl` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use repl::Repl; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fs::File` [INFO] [stderr] --> src/main.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::fs::File; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::Read` [INFO] [stderr] --> src/main.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use std::io::Read; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Peekable` [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::iter::Peekable; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `lexer::token::Token::*` [INFO] [stderr] --> src/main.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | use lexer::token::Token::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `n` [INFO] [stderr] --> src/repl/mod.rs:26:10 [INFO] [stderr] | [INFO] [stderr] 26 | Ok(n) => buffer, [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_n` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `error` [INFO] [stderr] --> src/repl/mod.rs:27:11 [INFO] [stderr] | [INFO] [stderr] 27 | Err(error) => { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_error` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:51:9 [INFO] [stderr] | [INFO] [stderr] 51 | let mut content = String::from("-4+2;"); [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: function is never used: `is_equal_sign` [INFO] [stderr] --> src/lexer/reader.rs:13:1 [INFO] [stderr] | [INFO] [stderr] 13 | fn is_equal_sign(character: &char) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `read_identifier` [INFO] [stderr] --> src/lexer/reader.rs:69:2 [INFO] [stderr] | [INFO] [stderr] 69 | pub fn read_identifier(&mut self, character: char) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `is_letter` [INFO] [stderr] --> src/lexer/mod.rs:13:1 [INFO] [stderr] | [INFO] [stderr] 13 | fn is_letter(character: &char) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Repl` [INFO] [stderr] --> src/repl/mod.rs:6:1 [INFO] [stderr] | [INFO] [stderr] 6 | pub struct Repl; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `run` [INFO] [stderr] --> src/repl/mod.rs:9:2 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn run(){ [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `read_user_input` [INFO] [stderr] --> src/repl/mod.rs:23:2 [INFO] [stderr] | [INFO] [stderr] 23 | fn read_user_input(&mut self) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Expression` [INFO] [stderr] --> src/ast/mod.rs:51:2 [INFO] [stderr] | [INFO] [stderr] 51 | Expression { [INFO] [stderr] | _____^ [INFO] [stderr] 52 | | token: Token, [INFO] [stderr] 53 | | value: Box [INFO] [stderr] 54 | | }, [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Call` [INFO] [stderr] --> src/parser/mod.rs:15:2 [INFO] [stderr] | [INFO] [stderr] 15 | Call = 7 [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `next_token_is_int` [INFO] [stderr] --> src/parser/mod.rs:236:2 [INFO] [stderr] | [INFO] [stderr] 236 | fn next_token_is_int(&mut self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable `PROMPT` should have a snake case name [INFO] [stderr] --> src/repl/mod.rs:11:7 [INFO] [stderr] | [INFO] [stderr] 11 | let PROMPT = ">> "; [INFO] [stderr] | ^^^^^^ help: convert the identifier to snake case: `prompt` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/repl/mod.rs:14:4 [INFO] [stderr] | [INFO] [stderr] 14 | io::stdout().flush(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.92s [INFO] running `"docker" "inspect" "432b5aadf93da20b38d613376d050e14b7d92ba57f02f5aa15b208cd6f5bceb3"` [INFO] running `"docker" "rm" "-f" "432b5aadf93da20b38d613376d050e14b7d92ba57f02f5aa15b208cd6f5bceb3"` [INFO] [stdout] 432b5aadf93da20b38d613376d050e14b7d92ba57f02f5aa15b208cd6f5bceb3 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/EmmaLa/MonkeyInterpreter:/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" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 5807537dbe98d3b1aec5c7adac388f45a81d6c77f4e399803b43e429d1772923 [INFO] running `"docker" "start" "-a" "5807537dbe98d3b1aec5c7adac388f45a81d6c77f4e399803b43e429d1772923"` [INFO] [stderr] Compiling monkey_int v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `ast::Statement::*` [INFO] [stderr] --> src/parser/mod.rs:155:7 [INFO] [stderr] | [INFO] [stderr] 155 | use ast::Statement::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `repl::Repl` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use repl::Repl; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fs::File` [INFO] [stderr] --> src/main.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::fs::File; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::Read` [INFO] [stderr] --> src/main.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use std::io::Read; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Peekable` [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::iter::Peekable; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `lexer::token::Token::*` [INFO] [stderr] --> src/main.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | use lexer::token::Token::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `n` [INFO] [stderr] --> src/repl/mod.rs:26:10 [INFO] [stderr] | [INFO] [stderr] 26 | Ok(n) => buffer, [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_n` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `error` [INFO] [stderr] --> src/repl/mod.rs:27:11 [INFO] [stderr] | [INFO] [stderr] 27 | Err(error) => { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_error` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:51:9 [INFO] [stderr] | [INFO] [stderr] 51 | let mut content = String::from("-4+2;"); [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: function is never used: `is_equal_sign` [INFO] [stderr] --> src/lexer/reader.rs:13:1 [INFO] [stderr] | [INFO] [stderr] 13 | fn is_equal_sign(character: &char) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `read_identifier` [INFO] [stderr] --> src/lexer/reader.rs:69:2 [INFO] [stderr] | [INFO] [stderr] 69 | pub fn read_identifier(&mut self, character: char) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `is_letter` [INFO] [stderr] --> src/lexer/mod.rs:13:1 [INFO] [stderr] | [INFO] [stderr] 13 | fn is_letter(character: &char) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Repl` [INFO] [stderr] --> src/repl/mod.rs:6:1 [INFO] [stderr] | [INFO] [stderr] 6 | pub struct Repl; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `run` [INFO] [stderr] --> src/repl/mod.rs:9:2 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn run(){ [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `read_user_input` [INFO] [stderr] --> src/repl/mod.rs:23:2 [INFO] [stderr] | [INFO] [stderr] 23 | fn read_user_input(&mut self) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Expression` [INFO] [stderr] --> src/ast/mod.rs:51:2 [INFO] [stderr] | [INFO] [stderr] 51 | Expression { [INFO] [stderr] | _____^ [INFO] [stderr] 52 | | token: Token, [INFO] [stderr] 53 | | value: Box [INFO] [stderr] 54 | | }, [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Call` [INFO] [stderr] --> src/parser/mod.rs:15:2 [INFO] [stderr] | [INFO] [stderr] 15 | Call = 7 [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `next_token_is_int` [INFO] [stderr] --> src/parser/mod.rs:236:2 [INFO] [stderr] | [INFO] [stderr] 236 | fn next_token_is_int(&mut self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable `PROMPT` should have a snake case name [INFO] [stderr] --> src/repl/mod.rs:11:7 [INFO] [stderr] | [INFO] [stderr] 11 | let PROMPT = ">> "; [INFO] [stderr] | ^^^^^^ help: convert the identifier to snake case: `prompt` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/repl/mod.rs:14:4 [INFO] [stderr] | [INFO] [stderr] 14 | io::stdout().flush(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.72s [INFO] running `"docker" "inspect" "5807537dbe98d3b1aec5c7adac388f45a81d6c77f4e399803b43e429d1772923"` [INFO] running `"docker" "rm" "-f" "5807537dbe98d3b1aec5c7adac388f45a81d6c77f4e399803b43e429d1772923"` [INFO] [stdout] 5807537dbe98d3b1aec5c7adac388f45a81d6c77f4e399803b43e429d1772923 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/EmmaLa/MonkeyInterpreter:/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" "+1.37.0" "test" "--frozen"` [INFO] [stdout] 4bb951f0e901f42ad1fcb5798c11ab2dd55b36a860246eba25e0da74468997bd [INFO] running `"docker" "start" "-a" "4bb951f0e901f42ad1fcb5798c11ab2dd55b36a860246eba25e0da74468997bd"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/monkey_int-d07806389258f1d5 [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" "4bb951f0e901f42ad1fcb5798c11ab2dd55b36a860246eba25e0da74468997bd"` [INFO] running `"docker" "rm" "-f" "4bb951f0e901f42ad1fcb5798c11ab2dd55b36a860246eba25e0da74468997bd"` [INFO] [stdout] 4bb951f0e901f42ad1fcb5798c11ab2dd55b36a860246eba25e0da74468997bd