Dec 17 19:02:16.537 INFO checking n4to4/interpreter-rs against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 19:02:16.537 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/n4to4/interpreter-rs:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 19:02:16.956 INFO [stdout] f20b2ef3ea88f26a46bc1f52606af1487fdbda934dd89520ce7e25d737947593
Dec 17 19:02:16.964 INFO running `"docker" "start" "-a" "f20b2ef3ea88f26a46bc1f52606af1487fdbda934dd89520ce7e25d737947593"`
Dec 17 19:02:18.274 INFO [stderr]     Checking difference v2.0.0
Dec 17 19:02:18.680 INFO [stderr]     Checking pretty_assertions v0.5.1
Dec 17 19:02:19.056 INFO [stderr]     Checking interpreter v0.1.0 (/opt/crater/workdir)
Dec 17 19:02:19.292 INFO [stderr] warning: unused `#[macro_use]` import
Dec 17 19:02:19.292 INFO [stderr]  --> src/main.rs:3:1
Dec 17 19:02:19.293 INFO [stderr]   |
Dec 17 19:02:19.293 INFO [stderr] 3 | #[macro_use]
Dec 17 19:02:19.293 INFO [stderr]   | ^^^^^^^^^^^^
Dec 17 19:02:19.293 INFO [stderr]   |
Dec 17 19:02:19.294 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 19:02:19.294 INFO [stderr] 
Dec 17 19:02:19.522 INFO [stderr] warning: struct is never constructed: `Program`
Dec 17 19:02:19.522 INFO [stderr]   --> src/ast.rs:23:1
Dec 17 19:02:19.522 INFO [stderr]    |
Dec 17 19:02:19.522 INFO [stderr] 23 | pub struct Program {
Dec 17 19:02:19.522 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 17 19:02:19.522 INFO [stderr] 
Dec 17 19:02:19.532 INFO [stderr] warning: method is never used: `new`
Dec 17 19:02:19.532 INFO [stderr]   --> src/ast.rs:27:5
Dec 17 19:02:19.532 INFO [stderr]    |
Dec 17 19:02:19.532 INFO [stderr] 27 |     pub fn new() -> Program {
Dec 17 19:02:19.532 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:02:19.532 INFO [stderr] 
Dec 17 19:02:19.533 INFO [stderr] warning: method is never used: `token_literal`
Dec 17 19:02:19.533 INFO [stderr]   --> src/ast.rs:33:5
Dec 17 19:02:19.533 INFO [stderr]    |
Dec 17 19:02:19.533 INFO [stderr] 33 |     fn token_literal(&self) -> String {
Dec 17 19:02:19.533 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:02:19.533 INFO [stderr] 
Dec 17 19:02:19.533 INFO [stderr] warning: struct is never constructed: `Identifier`
Dec 17 19:02:19.533 INFO [stderr]   --> src/ast.rs:47:1
Dec 17 19:02:19.533 INFO [stderr]    |
Dec 17 19:02:19.533 INFO [stderr] 47 | pub struct Identifier {
Dec 17 19:02:19.533 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:02:19.533 INFO [stderr] 
Dec 17 19:02:19.533 INFO [stderr] warning: struct is never constructed: `LetStatement`
Dec 17 19:02:19.533 INFO [stderr]   --> src/ast.rs:63:1
Dec 17 19:02:19.533 INFO [stderr]    |
Dec 17 19:02:19.533 INFO [stderr] 63 | pub struct LetStatement {
Dec 17 19:02:19.533 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:02:19.533 INFO [stderr] 
Dec 17 19:02:19.533 INFO [stderr] warning: struct is never constructed: `Parser`
Dec 17 19:02:19.533 INFO [stderr]  --> src/parser.rs:5:1
Dec 17 19:02:19.533 INFO [stderr]   |
Dec 17 19:02:19.533 INFO [stderr] 5 | struct Parser<'a> {
Dec 17 19:02:19.533 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 17 19:02:19.533 INFO [stderr] 
Dec 17 19:02:19.533 INFO [stderr] warning: method is never used: `new`
Dec 17 19:02:19.533 INFO [stderr]   --> src/parser.rs:12:5
Dec 17 19:02:19.533 INFO [stderr]    |
Dec 17 19:02:19.533 INFO [stderr] 12 |     fn new(l: &'a mut Lexer) -> Self {
Dec 17 19:02:19.533 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:02:19.533 INFO [stderr] 
Dec 17 19:02:19.533 INFO [stderr] warning: method is never used: `next_token`
Dec 17 19:02:19.533 INFO [stderr]   --> src/parser.rs:23:5
Dec 17 19:02:19.533 INFO [stderr]    |
Dec 17 19:02:19.533 INFO [stderr] 23 |     fn next_token(&mut self) {
Dec 17 19:02:19.533 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:02:19.533 INFO [stderr] 
Dec 17 19:02:19.533 INFO [stderr] warning: method is never used: `parse_program`
Dec 17 19:02:19.533 INFO [stderr]   --> src/parser.rs:31:5
Dec 17 19:02:19.533 INFO [stderr]    |
Dec 17 19:02:19.533 INFO [stderr] 31 |     fn parse_program(&mut self) -> Option<Program> {
Dec 17 19:02:19.533 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:02:19.533 INFO [stderr] 
Dec 17 19:02:19.533 INFO [stderr] warning: method is never used: `parse_statement`
Dec 17 19:02:19.533 INFO [stderr]   --> src/parser.rs:46:5
Dec 17 19:02:19.533 INFO [stderr]    |
Dec 17 19:02:19.533 INFO [stderr] 46 |     fn parse_statement(&mut self) -> Option<Box<ast::Statement>> {
Dec 17 19:02:19.533 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:02:19.533 INFO [stderr] 
Dec 17 19:02:19.534 INFO [stderr] warning: method is never used: `parse_let_statement`
Dec 17 19:02:19.534 INFO [stderr]   --> src/parser.rs:53:5
Dec 17 19:02:19.534 INFO [stderr]    |
Dec 17 19:02:19.534 INFO [stderr] 53 |     fn parse_let_statement(&mut self) -> Option<ast::LetStatement> {
Dec 17 19:02:19.534 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:02:19.534 INFO [stderr] 
Dec 17 19:02:19.534 INFO [stderr] warning: method is never used: `cur_token_is`
Dec 17 19:02:19.534 INFO [stderr]   --> src/parser.rs:81:5
Dec 17 19:02:19.534 INFO [stderr]    |
Dec 17 19:02:19.534 INFO [stderr] 81 |     fn cur_token_is(&self, t: token::TokenType) -> bool {
Dec 17 19:02:19.534 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:02:19.534 INFO [stderr] 
Dec 17 19:02:19.534 INFO [stderr] warning: method is never used: `peek_token_is`
Dec 17 19:02:19.534 INFO [stderr]   --> src/parser.rs:84:5
Dec 17 19:02:19.534 INFO [stderr]    |
Dec 17 19:02:19.534 INFO [stderr] 84 |     fn peek_token_is(&self, t: token::TokenType) -> bool {
Dec 17 19:02:19.534 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:02:19.534 INFO [stderr] 
Dec 17 19:02:19.534 INFO [stderr] warning: method is never used: `expect_peek`
Dec 17 19:02:19.534 INFO [stderr]   --> src/parser.rs:87:5
Dec 17 19:02:19.534 INFO [stderr]    |
Dec 17 19:02:19.534 INFO [stderr] 87 |     fn expect_peek(&mut self, t: token::TokenType) -> bool {
Dec 17 19:02:19.534 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:02:19.534 INFO [stderr] 
Dec 17 19:02:19.548 INFO [stderr] warning: variant `NOT_EQ` should have a camel case name such as `NotEq`
Dec 17 19:02:19.548 INFO [stderr]   --> src/token.rs:27:5
Dec 17 19:02:19.548 INFO [stderr]    |
Dec 17 19:02:19.548 INFO [stderr] 27 |     NOT_EQ,
Dec 17 19:02:19.548 INFO [stderr]    |     ^^^^^^
Dec 17 19:02:19.548 INFO [stderr]    |
Dec 17 19:02:19.548 INFO [stderr]    = note: #[warn(non_camel_case_types)] on by default
Dec 17 19:02:19.548 INFO [stderr] 
Dec 17 19:02:19.655 INFO [stderr] warning: method is never used: `token_literal`
Dec 17 19:02:19.655 INFO [stderr]   --> src/ast.rs:33:5
Dec 17 19:02:19.655 INFO [stderr]    |
Dec 17 19:02:19.655 INFO [stderr] 33 |     fn token_literal(&self) -> String {
Dec 17 19:02:19.655 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:02:19.655 INFO [stderr] 
Dec 17 19:02:19.655 INFO [stderr] warning: function is never used: `print_if_string`
Dec 17 19:02:19.655 INFO [stderr]    --> src/parser.rs:104:5
Dec 17 19:02:19.655 INFO [stderr]     |
Dec 17 19:02:19.655 INFO [stderr] 104 |     fn print_if_string(s: &Any) {
Dec 17 19:02:19.655 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:02:19.655 INFO [stderr] 
Dec 17 19:02:19.671 INFO [stderr] warning: variant `NOT_EQ` should have a camel case name such as `NotEq`
Dec 17 19:02:19.671 INFO [stderr]   --> src/token.rs:27:5
Dec 17 19:02:19.671 INFO [stderr]    |
Dec 17 19:02:19.671 INFO [stderr] 27 |     NOT_EQ,
Dec 17 19:02:19.671 INFO [stderr]    |     ^^^^^^
Dec 17 19:02:19.671 INFO [stderr]    |
Dec 17 19:02:19.671 INFO [stderr]    = note: #[warn(non_camel_case_types)] on by default
Dec 17 19:02:19.671 INFO [stderr] 
Dec 17 19:02:19.708 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
Dec 17 19:02:20.639 INFO running `"docker" "inspect" "f20b2ef3ea88f26a46bc1f52606af1487fdbda934dd89520ce7e25d737947593"`
Dec 17 19:02:20.946 INFO running `"docker" "rm" "-f" "f20b2ef3ea88f26a46bc1f52606af1487fdbda934dd89520ce7e25d737947593"`
Dec 17 19:02:21.230 INFO [stdout] f20b2ef3ea88f26a46bc1f52606af1487fdbda934dd89520ce7e25d737947593