[INFO] updating cached repository ryanyz10/toy_lang
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ryanyz10/toy_lang
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ryanyz10/toy_lang" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ryanyz10/toy_lang"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ryanyz10/toy_lang'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ryanyz10/toy_lang" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ryanyz10/toy_lang"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ryanyz10/toy_lang'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f1b6c6d212bb1a3848228d19ea3ad6474abb0785
[INFO] sha for GitHub repo ryanyz10/toy_lang: f1b6c6d212bb1a3848228d19ea3ad6474abb0785
[INFO] validating manifest of ryanyz10/toy_lang on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ryanyz10/toy_lang on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ryanyz10/toy_lang
[INFO] finished frobbing ryanyz10/toy_lang
[INFO] frobbed toml for ryanyz10/toy_lang written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ryanyz10/toy_lang/Cargo.toml
[INFO] started frobbing ryanyz10/toy_lang
[INFO] finished frobbing ryanyz10/toy_lang
[INFO] frobbed toml for ryanyz10/toy_lang written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ryanyz10/toy_lang/Cargo.toml
[INFO] crate ryanyz10/toy_lang has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ryanyz10/toy_lang against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ryanyz10/toy_lang:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] a544d86a1d4c05b2b6364e0b12365571b80a3c165c32bd7159297d0be7d4d402
[INFO] running `"docker" "start" "-a" "a544d86a1d4c05b2b6364e0b12365571b80a3c165c32bd7159297d0be7d4d402"`
[INFO] [stderr]    Compiling toy_lang v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `ILLEGAL`
[INFO] [stderr]  --> src/token.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     ILLEGAL,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `EOF`
[INFO] [stderr]  --> src/token.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     EOF,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IDENT`
[INFO] [stderr]  --> src/token.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     IDENT(String),
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `INT`
[INFO] [stderr]  --> src/token.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     INT(i64),
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ASSIGN`
[INFO] [stderr]  --> src/token.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     ASSIGN,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `PLUS`
[INFO] [stderr]  --> src/token.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     PLUS,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `COMMA`
[INFO] [stderr]  --> src/token.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     COMMA,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SEMICOLON`
[INFO] [stderr]   --> src/token.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     SEMICOLON,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LPAREN`
[INFO] [stderr]   --> src/token.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     LPAREN,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RPAREN`
[INFO] [stderr]   --> src/token.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     RPAREN,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LBRACE`
[INFO] [stderr]   --> src/token.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     LBRACE,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RBRACE`
[INFO] [stderr]   --> src/token.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     RBRACE,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FUNCTION`
[INFO] [stderr]   --> src/token.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     FUNCTION,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LET`
[INFO] [stderr]   --> src/token.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     LET,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Token`
[INFO] [stderr]   --> src/token.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub struct Token {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_token_type`
[INFO] [stderr]   --> src/token.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn get_token_type(literal: String) -> TokenType {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse`
[INFO] [stderr]  --> src/lexer.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn parse<'a>(source: &str) -> Vec<Token> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Lexer`
[INFO] [stderr]   --> src/lexer.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | struct Lexer<'a> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/lexer.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn new(source: &'a str) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `next_token`
[INFO] [stderr]   --> src/lexer.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn next_token(&self) -> Token {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_char`
[INFO] [stderr]   --> src/lexer.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     fn read_char(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_identifier`
[INFO] [stderr]   --> src/lexer.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 |     fn read_identifier(&self) -> &str {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_number`
[INFO] [stderr]    --> src/lexer.rs:106:5
[INFO] [stderr]     |
[INFO] [stderr] 106 |     fn read_number(&self) -> i64 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_letter`
[INFO] [stderr]    --> src/lexer.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     fn is_letter(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `skip_whitespace`
[INFO] [stderr]    --> src/lexer.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn skip_whitespace(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "a544d86a1d4c05b2b6364e0b12365571b80a3c165c32bd7159297d0be7d4d402"`
[INFO] running `"docker" "rm" "-f" "a544d86a1d4c05b2b6364e0b12365571b80a3c165c32bd7159297d0be7d4d402"`
[INFO] [stdout] a544d86a1d4c05b2b6364e0b12365571b80a3c165c32bd7159297d0be7d4d402
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ryanyz10/toy_lang:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] c28be37905c914e2246621864c93848e50c66fa13cf02e031bbee6a0b310282f
[INFO] running `"docker" "start" "-a" "c28be37905c914e2246621864c93848e50c66fa13cf02e031bbee6a0b310282f"`
[INFO] [stderr]    Compiling toy_lang v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `"docker" "inspect" "c28be37905c914e2246621864c93848e50c66fa13cf02e031bbee6a0b310282f"`
[INFO] running `"docker" "rm" "-f" "c28be37905c914e2246621864c93848e50c66fa13cf02e031bbee6a0b310282f"`
[INFO] [stdout] c28be37905c914e2246621864c93848e50c66fa13cf02e031bbee6a0b310282f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ryanyz10/toy_lang:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] ebd5fb31cbeb25b6e36a3c445874c6d3b138295eb15e638746554713cd99152f
[INFO] running `"docker" "start" "-a" "ebd5fb31cbeb25b6e36a3c445874c6d3b138295eb15e638746554713cd99152f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/toy_lang-8baeb26b7f2683f5
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test lexer_tests::test_next_token_source ... ok
[INFO] [stdout] test lexer_tests::test_next_token_symbols ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/toy_lang-b14e52044c616222
[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] [stderr]    Doc-tests toy_lang
[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" "ebd5fb31cbeb25b6e36a3c445874c6d3b138295eb15e638746554713cd99152f"`
[INFO] running `"docker" "rm" "-f" "ebd5fb31cbeb25b6e36a3c445874c6d3b138295eb15e638746554713cd99152f"`
[INFO] [stdout] ebd5fb31cbeb25b6e36a3c445874c6d3b138295eb15e638746554713cd99152f