Dec 13 09:29:25.075 INFO testing n4to4/interpreter-rs against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 09:29:25.076 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 13 09:29:25.364 INFO [stdout] f8022465aa39d4fa07b9672319362731f5b4dc1037545b7a6729e2f457301c44
Dec 13 09:29:25.367 INFO running `"docker" "start" "-a" "f8022465aa39d4fa07b9672319362731f5b4dc1037545b7a6729e2f457301c44"`
Dec 13 09:29:26.593 INFO [stderr] usermod: no changes
Dec 13 09:29:26.675 INFO [stderr]    Compiling interpreter v0.1.0 (/source)
Dec 13 09:29:27.041 INFO [stderr] warning: unused `#[macro_use]` import
Dec 13 09:29:27.041 INFO [stderr]  --> src/main.rs:3:1
Dec 13 09:29:27.041 INFO [stderr]   |
Dec 13 09:29:27.041 INFO [stderr] 3 | #[macro_use]
Dec 13 09:29:27.041 INFO [stderr]   | ^^^^^^^^^^^^
Dec 13 09:29:27.041 INFO [stderr]   |
Dec 13 09:29:27.041 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 09:29:27.041 INFO [stderr] 
Dec 13 09:29:27.183 INFO [stderr] warning: struct is never constructed: `Program`
Dec 13 09:29:27.184 INFO [stderr]   --> src/ast.rs:23:1
Dec 13 09:29:27.184 INFO [stderr]    |
Dec 13 09:29:27.184 INFO [stderr] 23 | pub struct Program {
Dec 13 09:29:27.184 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 13 09:29:27.184 INFO [stderr] 
Dec 13 09:29:27.184 INFO [stderr] warning: method is never used: `new`
Dec 13 09:29:27.184 INFO [stderr]   --> src/ast.rs:27:5
Dec 13 09:29:27.184 INFO [stderr]    |
Dec 13 09:29:27.184 INFO [stderr] 27 |     pub fn new() -> Program {
Dec 13 09:29:27.184 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:29:27.184 INFO [stderr] 
Dec 13 09:29:27.184 INFO [stderr] warning: method is never used: `token_literal`
Dec 13 09:29:27.184 INFO [stderr]   --> src/ast.rs:33:5
Dec 13 09:29:27.184 INFO [stderr]    |
Dec 13 09:29:27.184 INFO [stderr] 33 |     fn token_literal(&self) -> String {
Dec 13 09:29:27.184 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:29:27.184 INFO [stderr] 
Dec 13 09:29:27.184 INFO [stderr] warning: struct is never constructed: `Identifier`
Dec 13 09:29:27.184 INFO [stderr]   --> src/ast.rs:47:1
Dec 13 09:29:27.184 INFO [stderr]    |
Dec 13 09:29:27.184 INFO [stderr] 47 | pub struct Identifier {
Dec 13 09:29:27.184 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:29:27.184 INFO [stderr] 
Dec 13 09:29:27.184 INFO [stderr] warning: struct is never constructed: `LetStatement`
Dec 13 09:29:27.184 INFO [stderr]   --> src/ast.rs:63:1
Dec 13 09:29:27.184 INFO [stderr]    |
Dec 13 09:29:27.184 INFO [stderr] 63 | pub struct LetStatement {
Dec 13 09:29:27.184 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:29:27.184 INFO [stderr] 
Dec 13 09:29:27.184 INFO [stderr] warning: struct is never constructed: `Parser`
Dec 13 09:29:27.184 INFO [stderr]  --> src/parser.rs:5:1
Dec 13 09:29:27.184 INFO [stderr]   |
Dec 13 09:29:27.184 INFO [stderr] 5 | struct Parser<'a> {
Dec 13 09:29:27.184 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 13 09:29:27.184 INFO [stderr] 
Dec 13 09:29:27.184 INFO [stderr] warning: method is never used: `new`
Dec 13 09:29:27.184 INFO [stderr]   --> src/parser.rs:12:5
Dec 13 09:29:27.184 INFO [stderr]    |
Dec 13 09:29:27.184 INFO [stderr] 12 |     fn new(l: &'a mut Lexer) -> Self {
Dec 13 09:29:27.184 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:29:27.184 INFO [stderr] 
Dec 13 09:29:27.184 INFO [stderr] warning: method is never used: `next_token`
Dec 13 09:29:27.184 INFO [stderr]   --> src/parser.rs:23:5
Dec 13 09:29:27.184 INFO [stderr]    |
Dec 13 09:29:27.184 INFO [stderr] 23 |     fn next_token(&mut self) {
Dec 13 09:29:27.184 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:29:27.184 INFO [stderr] 
Dec 13 09:29:27.184 INFO [stderr] warning: method is never used: `parse_program`
Dec 13 09:29:27.184 INFO [stderr]   --> src/parser.rs:31:5
Dec 13 09:29:27.184 INFO [stderr]    |
Dec 13 09:29:27.184 INFO [stderr] 31 |     fn parse_program(&mut self) -> Option<Program> {
Dec 13 09:29:27.184 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:29:27.184 INFO [stderr] 
Dec 13 09:29:27.184 INFO [stderr] warning: method is never used: `parse_statement`
Dec 13 09:29:27.184 INFO [stderr]   --> src/parser.rs:46:5
Dec 13 09:29:27.184 INFO [stderr]    |
Dec 13 09:29:27.184 INFO [stderr] 46 |     fn parse_statement(&mut self) -> Option<Box<ast::Statement>> {
Dec 13 09:29:27.184 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:29:27.184 INFO [stderr] 
Dec 13 09:29:27.184 INFO [stderr] warning: method is never used: `parse_let_statement`
Dec 13 09:29:27.184 INFO [stderr]   --> src/parser.rs:53:5
Dec 13 09:29:27.184 INFO [stderr]    |
Dec 13 09:29:27.184 INFO [stderr] 53 |     fn parse_let_statement(&mut self) -> Option<ast::LetStatement> {
Dec 13 09:29:27.184 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:29:27.184 INFO [stderr] 
Dec 13 09:29:27.184 INFO [stderr] warning: method is never used: `cur_token_is`
Dec 13 09:29:27.184 INFO [stderr]   --> src/parser.rs:81:5
Dec 13 09:29:27.184 INFO [stderr]    |
Dec 13 09:29:27.184 INFO [stderr] 81 |     fn cur_token_is(&self, t: token::TokenType) -> bool {
Dec 13 09:29:27.184 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:29:27.184 INFO [stderr] 
Dec 13 09:29:27.184 INFO [stderr] warning: method is never used: `peek_token_is`
Dec 13 09:29:27.184 INFO [stderr]   --> src/parser.rs:84:5
Dec 13 09:29:27.184 INFO [stderr]    |
Dec 13 09:29:27.184 INFO [stderr] 84 |     fn peek_token_is(&self, t: token::TokenType) -> bool {
Dec 13 09:29:27.184 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:29:27.184 INFO [stderr] 
Dec 13 09:29:27.184 INFO [stderr] warning: method is never used: `expect_peek`
Dec 13 09:29:27.184 INFO [stderr]   --> src/parser.rs:87:5
Dec 13 09:29:27.184 INFO [stderr]    |
Dec 13 09:29:27.184 INFO [stderr] 87 |     fn expect_peek(&mut self, t: token::TokenType) -> bool {
Dec 13 09:29:27.184 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:29:27.184 INFO [stderr] 
Dec 13 09:29:27.184 INFO [stderr] warning: variant `NOT_EQ` should have a camel case name such as `NotEq`
Dec 13 09:29:27.185 INFO [stderr]   --> src/token.rs:27:5
Dec 13 09:29:27.185 INFO [stderr]    |
Dec 13 09:29:27.185 INFO [stderr] 27 |     NOT_EQ,
Dec 13 09:29:27.185 INFO [stderr]    |     ^^^^^^
Dec 13 09:29:27.185 INFO [stderr]    |
Dec 13 09:29:27.185 INFO [stderr]    = note: #[warn(non_camel_case_types)] on by default
Dec 13 09:29:27.185 INFO [stderr] 
Dec 13 09:29:27.670 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
Dec 13 09:29:27.671 INFO [stderr] su: No module specific data is present
Dec 13 09:29:28.199 INFO running `"docker" "inspect" "f8022465aa39d4fa07b9672319362731f5b4dc1037545b7a6729e2f457301c44"`
Dec 13 09:29:28.471 INFO running `"docker" "rm" "-f" "f8022465aa39d4fa07b9672319362731f5b4dc1037545b7a6729e2f457301c44"`
Dec 13 09:29:28.666 INFO [stdout] f8022465aa39d4fa07b9672319362731f5b4dc1037545b7a6729e2f457301c44
Dec 13 09:29:28.673 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 13 09:29:29.053 INFO [stdout] a02bb258603d5336de847131e50c758397d170e7f27439e049968e470fb22a16
Dec 13 09:29:29.054 INFO running `"docker" "start" "-a" "a02bb258603d5336de847131e50c758397d170e7f27439e049968e470fb22a16"`
Dec 13 09:29:29.847 INFO [stderr] usermod: no changes
Dec 13 09:29:29.879 INFO [stderr]    Compiling interpreter v0.1.0 (/source)
Dec 13 09:29:30.439 INFO [stderr] warning: method is never used: `token_literal`
Dec 13 09:29:30.439 INFO [stderr]   --> src/ast.rs:33:5
Dec 13 09:29:30.439 INFO [stderr]    |
Dec 13 09:29:30.439 INFO [stderr] 33 |     fn token_literal(&self) -> String {
Dec 13 09:29:30.439 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:29:30.439 INFO [stderr] 
Dec 13 09:29:30.439 INFO [stderr] warning: function is never used: `print_if_string`
Dec 13 09:29:30.439 INFO [stderr]    --> src/parser.rs:104:5
Dec 13 09:29:30.439 INFO [stderr]     |
Dec 13 09:29:30.439 INFO [stderr] 104 |     fn print_if_string(s: &Any) {
Dec 13 09:29:30.439 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:29:30.439 INFO [stderr] 
Dec 13 09:29:30.455 INFO [stderr] warning: variant `NOT_EQ` should have a camel case name such as `NotEq`
Dec 13 09:29:30.455 INFO [stderr]   --> src/token.rs:27:5
Dec 13 09:29:30.455 INFO [stderr]    |
Dec 13 09:29:30.455 INFO [stderr] 27 |     NOT_EQ,
Dec 13 09:29:30.455 INFO [stderr]    |     ^^^^^^
Dec 13 09:29:30.455 INFO [stderr]    |
Dec 13 09:29:30.455 INFO [stderr]    = note: #[warn(non_camel_case_types)] on by default
Dec 13 09:29:30.455 INFO [stderr] 
Dec 13 09:29:31.144 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
Dec 13 09:29:31.149 INFO [stderr] su: No module specific data is present
Dec 13 09:29:31.992 INFO running `"docker" "inspect" "a02bb258603d5336de847131e50c758397d170e7f27439e049968e470fb22a16"`
Dec 13 09:29:32.216 INFO running `"docker" "rm" "-f" "a02bb258603d5336de847131e50c758397d170e7f27439e049968e470fb22a16"`
Dec 13 09:29:32.508 INFO [stdout] a02bb258603d5336de847131e50c758397d170e7f27439e049968e470fb22a16
Dec 13 09:29:32.510 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 13 09:29:32.851 INFO [stdout] 39dd7e948ae904b8e6237e41691fa9b96331c5eb7e2d564fe9c9c2d56052326d
Dec 13 09:29:32.857 INFO running `"docker" "start" "-a" "39dd7e948ae904b8e6237e41691fa9b96331c5eb7e2d564fe9c9c2d56052326d"`
Dec 13 09:29:33.482 INFO [stderr] usermod: no changes
Dec 13 09:29:33.516 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 13 09:29:33.523 INFO [stderr]      Running /target/debug/deps/interpreter-549a36f393042f92
Dec 13 09:29:33.523 INFO [stdout] 
Dec 13 09:29:33.523 INFO [stdout] running 3 tests
Dec 13 09:29:33.523 INFO [stdout] test token::tests::next_token ... ok
Dec 13 09:29:33.523 INFO [stdout] test token::tests::next_token2 ... ok
Dec 13 09:29:33.526 INFO [stdout] test parser::tests::let_statements ... ok
Dec 13 09:29:33.527 INFO [stdout] 
Dec 13 09:29:33.527 INFO [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 09:29:33.527 INFO [stdout] 
Dec 13 09:29:33.533 INFO [stderr] su: No module specific data is present
Dec 13 09:29:33.954 INFO running `"docker" "inspect" "39dd7e948ae904b8e6237e41691fa9b96331c5eb7e2d564fe9c9c2d56052326d"`
Dec 13 09:29:34.094 INFO running `"docker" "rm" "-f" "39dd7e948ae904b8e6237e41691fa9b96331c5eb7e2d564fe9c9c2d56052326d"`
Dec 13 09:29:34.185 INFO [stdout] 39dd7e948ae904b8e6237e41691fa9b96331c5eb7e2d564fe9c9c2d56052326d