[INFO] updating cached repository https://github.com/n4to4/interpreter-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 14ece5df4d2e1a7f60069af47418825a0d3bcc78
[INFO] testing n4to4/interpreter-rs against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fn4to4%2Finterpreter-rs" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/n4to4/interpreter-rs on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/n4to4/interpreter-rs
[INFO] finished tweaking git repo https://github.com/n4to4/interpreter-rs
[INFO] tweaked toml for git repo https://github.com/n4to4/interpreter-rs written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/n4to4/interpreter-rs already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 00f01bc854729f1e4b3d4bb14b17a1d803855b0f7c88507804c4596855279a20
[INFO] running `"docker" "start" "-a" "00f01bc854729f1e4b3d4bb14b17a1d803855b0f7c88507804c4596855279a20"`
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling pretty_assertions v0.5.1
[INFO] [stderr]    Compiling interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast.rs:24:29
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub statements: Vec<Box<Statement>>,
[INFO] [stderr]    |                             ^^^^^^^^^ help: use `dyn`: `dyn Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast.rs:84:32
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn as_statement(&self) -> &Statement;
[INFO] [stderr]    |                                ^^^^^^^^^ help: use `dyn`: `dyn Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast.rs:85:38
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn as_box_statement(self) -> Box<Statement>;
[INFO] [stderr]    |                                      ^^^^^^^^^ help: use `dyn`: `dyn Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast.rs:88:32
[INFO] [stderr]    |
[INFO] [stderr] 88 |     fn as_statement(&self) -> &Statement {
[INFO] [stderr]    |                                ^^^^^^^^^ help: use `dyn`: `dyn Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast.rs:92:38
[INFO] [stderr]    |
[INFO] [stderr] 92 |     fn as_box_statement(self) -> Box<Statement> {
[INFO] [stderr]    |                                      ^^^^^^^^^ help: use `dyn`: `dyn Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:46:49
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn parse_statement(&mut self) -> Option<Box<ast::Statement>> {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `NOT_EQ` should have an upper camel case name
[INFO] [stderr]   --> src/token.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     NOT_EQ,
[INFO] [stderr]    |     ^^^^^^ help: convert the identifier to upper camel case: `NotEq`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/repl.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 |             let mut l = Lexer::new(line);
[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: struct is never constructed: `Program`
[INFO] [stderr]   --> src/ast.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub struct Program {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/ast.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn new() -> Program {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn token_literal(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Identifier`
[INFO] [stderr]   --> src/ast.rs:47:1
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub struct Identifier {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `LetStatement`
[INFO] [stderr]   --> src/ast.rs:63:1
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub struct LetStatement {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Parser`
[INFO] [stderr]  --> src/parser.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Parser<'a> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/parser.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn new(l: &'a mut Lexer) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `next_token`
[INFO] [stderr]   --> src/parser.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn next_token(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_program`
[INFO] [stderr]   --> src/parser.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn parse_program(&mut self) -> Option<Program> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_statement`
[INFO] [stderr]   --> src/parser.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn parse_statement(&mut self) -> Option<Box<ast::Statement>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_let_statement`
[INFO] [stderr]   --> src/parser.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn parse_let_statement(&mut self) -> Option<ast::LetStatement> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cur_token_is`
[INFO] [stderr]   --> src/parser.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn cur_token_is(&self, t: token::TokenType) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `peek_token_is`
[INFO] [stderr]   --> src/parser.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn peek_token_is(&self, t: token::TokenType) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `expect_peek`
[INFO] [stderr]   --> src/parser.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     fn expect_peek(&mut self, t: token::TokenType) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `"docker" "inspect" "00f01bc854729f1e4b3d4bb14b17a1d803855b0f7c88507804c4596855279a20"`
[INFO] running `"docker" "rm" "-f" "00f01bc854729f1e4b3d4bb14b17a1d803855b0f7c88507804c4596855279a20"`
[INFO] [stdout] 00f01bc854729f1e4b3d4bb14b17a1d803855b0f7c88507804c4596855279a20
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] ab6c0c483949e99a9e31ad1ad26b347143d94ab8dfba6b3962c93e6decc260c2
[INFO] running `"docker" "start" "-a" "ab6c0c483949e99a9e31ad1ad26b347143d94ab8dfba6b3962c93e6decc260c2"`
[INFO] [stderr]    Compiling interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast.rs:24:29
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub statements: Vec<Box<Statement>>,
[INFO] [stderr]    |                             ^^^^^^^^^ help: use `dyn`: `dyn Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast.rs:84:32
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn as_statement(&self) -> &Statement;
[INFO] [stderr]    |                                ^^^^^^^^^ help: use `dyn`: `dyn Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast.rs:85:38
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn as_box_statement(self) -> Box<Statement>;
[INFO] [stderr]    |                                      ^^^^^^^^^ help: use `dyn`: `dyn Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast.rs:88:32
[INFO] [stderr]    |
[INFO] [stderr] 88 |     fn as_statement(&self) -> &Statement {
[INFO] [stderr]    |                                ^^^^^^^^^ help: use `dyn`: `dyn Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast.rs:92:38
[INFO] [stderr]    |
[INFO] [stderr] 92 |     fn as_box_statement(self) -> Box<Statement> {
[INFO] [stderr]    |                                      ^^^^^^^^^ help: use `dyn`: `dyn Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:46:49
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn parse_statement(&mut self) -> Option<Box<ast::Statement>> {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ast::Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:104:28
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn print_if_string(s: &Any) {
[INFO] [stderr]     |                            ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:130:37
[INFO] [stderr]     |
[INFO] [stderr] 130 |     fn assert_let_statement(s: &Box<Statement>, name: &str) {
[INFO] [stderr]     |                                     ^^^^^^^^^ help: use `dyn`: `dyn Statement`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `NOT_EQ` should have an upper camel case name
[INFO] [stderr]   --> src/token.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     NOT_EQ,
[INFO] [stderr]    |     ^^^^^^ help: convert the identifier to upper camel case: `NotEq`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/repl.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 |             let mut l = Lexer::new(line);
[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: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn token_literal(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_if_string`
[INFO] [stderr]    --> src/parser.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn print_if_string(s: &Any) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "ab6c0c483949e99a9e31ad1ad26b347143d94ab8dfba6b3962c93e6decc260c2"`
[INFO] running `"docker" "rm" "-f" "ab6c0c483949e99a9e31ad1ad26b347143d94ab8dfba6b3962c93e6decc260c2"`
[INFO] [stdout] ab6c0c483949e99a9e31ad1ad26b347143d94ab8dfba6b3962c93e6decc260c2
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 5f4e88b8273ec18fd7845228fca60d5029a89290c4afb8715882d97fc46f222f
[INFO] running `"docker" "start" "-a" "5f4e88b8273ec18fd7845228fca60d5029a89290c4afb8715882d97fc46f222f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/interpreter-c962b5851fefa0d3
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test token::tests::next_token ... ok
[INFO] [stdout] test parser::tests::let_statements ... ok
[INFO] [stdout] test token::tests::next_token2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "5f4e88b8273ec18fd7845228fca60d5029a89290c4afb8715882d97fc46f222f"`
[INFO] running `"docker" "rm" "-f" "5f4e88b8273ec18fd7845228fca60d5029a89290c4afb8715882d97fc46f222f"`
[INFO] [stdout] 5f4e88b8273ec18fd7845228fca60d5029a89290c4afb8715882d97fc46f222f