[INFO] cloning repository https://github.com/MinkowskiMetric/like_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MinkowskiMetric/like_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMinkowskiMetric%2Flike_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMinkowskiMetric%2Flike_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 044d8ed8a9ce7d7fde575baf9bd63b1d0149bdda
[INFO] checking MinkowskiMetric/like_rust against master#c290daa1e5274a52e54a0f49e31bd70192abc606 for pr-133502-23
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMinkowskiMetric%2Flike_rust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MinkowskiMetric/like_rust
[INFO] finished tweaking git repo https://github.com/MinkowskiMetric/like_rust
[INFO] tweaked toml for git repo https://github.com/MinkowskiMetric/like_rust written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MinkowskiMetric/like_rust on toolchain c290daa1e5274a52e54a0f49e31bd70192abc606
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c290daa1e5274a52e54a0f49e31bd70192abc606" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MinkowskiMetric/like_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c290daa1e5274a52e54a0f49e31bd70192abc606" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] e96bdb7feed5e0c70fd05e44fb490d62dddbbde5c6c1844793bcf939fda63b09
[INFO] running `Command { std: "docker" "start" "e96bdb7feed5e0c70fd05e44fb490d62dddbbde5c6c1844793bcf939fda63b09", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e96bdb7feed5e0c70fd05e44fb490d62dddbbde5c6c1844793bcf939fda63b09" "/opt/rustwide/cargo-home/bin/cargo" "+c290daa1e5274a52e54a0f49e31bd70192abc606" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e96bdb7feed5e0c70fd05e44fb490d62dddbbde5c6c1844793bcf939fda63b09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e96bdb7feed5e0c70fd05e44fb490d62dddbbde5c6c1844793bcf939fda63b09" "/opt/rustwide/cargo-home/bin/cargo" "+c290daa1e5274a52e54a0f49e31bd70192abc606" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: struct `CharReader` is never constructed
[INFO] [stdout]  --> src/lexer/char_reader.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub(super) struct CharReader<'a> {
[INFO] [stdout]   |                   ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `current_pos`, `next`, `peek1`, and `peek2` are never used
[INFO] [stdout]   --> src/lexer/char_reader.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl<'a> CharReader<'a> {
[INFO] [stdout]    | ----------------------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn new(chars: &'a str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn current_pos(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn next(&mut self) -> Option<char> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn peek1(&self) -> Option<char> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn peek2(&self) -> Option<char> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `skip_to_end_delimiter` is never used
[INFO] [stdout]  --> src/lexer/delimiter_checker.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) trait DelimitedTokenReader: TokenReader {
[INFO] [stdout]   |                  -------------------- method in this trait
[INFO] [stdout] 6 |     fn skip_to_end_delimiter(&mut self, ty: DelimiterType);
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `consume_to_semicolon` is never used
[INFO] [stdout]   --> src/lexer/token_reader.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) trait TokenReader {
[INFO] [stdout]    |                  ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn consume_to_semicolon(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_whitespace` is never used
[INFO] [stdout]  --> src/lexer/tokenizer.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | const fn is_whitespace(c: char) -> bool {
[INFO] [stdout]   |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_identifier_start` is never used
[INFO] [stdout]   --> src/lexer/tokenizer.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn is_identifier_start(ch: char) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_identifier_continue` is never used
[INFO] [stdout]   --> src/lexer/tokenizer.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn is_identifier_continue(ch: char) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `match_keyword` is never used
[INFO] [stdout]   --> src/lexer/tokenizer.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn match_keyword(keyword: &str) -> Option<Token> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Lexer` is never constructed
[INFO] [stdout]   --> src/lexer/tokenizer.rs:93:12
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub struct Lexer<'a> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/lexer/tokenizer.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout]  99 | impl Lexer<'_> {
[INFO] [stdout]     | -------------- methods in this implementation
[INFO] [stdout] 100 |     fn assert_next_char(&mut self, c: char) -> std::ops::Range<usize> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     fn assert_next_str(&mut self, str: &str) -> std::ops::Range<usize> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     fn next_token(&mut self) -> Result<Span<Token>, Span<TokenError>> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 159 |     fn consume_char_if(&mut self, f: impl FnOnce(char) -> bool) -> Option<char> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 169 |     fn consume_matching_char(&mut self, matching: char) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 173 |     fn skip_if(&mut self, f: impl (Fn(char) -> bool) + Clone) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 179 |     fn skip_whitespace(&mut self) -> Result<(), Span<TokenError>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 198 |     fn skip_to_end_of_line(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 206 |     fn consume_identifier(&mut self, allow_raw: bool) -> Option<Span<Range<usize>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 244 |     fn skip_block_comment(&mut self) -> Result<(), Span<TokenError>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 273 |     fn consume_single_digit(&mut self, digits: &str) -> Option<char> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 281 |     fn expect_single_digit(&mut self, digits: &str) -> Result<char, TokenError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 286 |     fn consume_integer_literal(&mut self, digits: &str) -> Result<(), Span<TokenError>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 301 |     fn number_literal(&mut self) -> Result<Option<Span<Token>>, Span<TokenError>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 374 |     fn string_literal(&mut self) -> Result<Option<Span<Token>>, Span<TokenError>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `punctuation` is never used
[INFO] [stdout]    --> src/lexer/tokenizer.rs:468:8
[INFO] [stdout]     |
[INFO] [stdout] 467 | impl Lexer<'_> {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] 468 |     fn punctuation(&mut self) -> Option<Span<Token>> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lexer/delimiter_checker.rs:52:24
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn fill_peek_entry(&mut self) -> NotNone<Span<Token>> {
[INFO] [stdout]    |                        ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn fill_peek_entry(&mut self) -> NotNone<'_, Span<Token>> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `consume_to_semicolon` is never used
[INFO] [stdout]   --> src/lexer/token_reader.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) trait TokenReader {
[INFO] [stdout]    |                  ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn consume_to_semicolon(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lexer/delimiter_checker.rs:52:24
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn fill_peek_entry(&mut self) -> NotNone<Span<Token>> {
[INFO] [stdout]    |                        ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn fill_peek_entry(&mut self) -> NotNone<'_, Span<Token>> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.26s
[INFO] running `Command { std: "docker" "inspect" "e96bdb7feed5e0c70fd05e44fb490d62dddbbde5c6c1844793bcf939fda63b09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e96bdb7feed5e0c70fd05e44fb490d62dddbbde5c6c1844793bcf939fda63b09", kill_on_drop: false }`
[INFO] [stdout] e96bdb7feed5e0c70fd05e44fb490d62dddbbde5c6c1844793bcf939fda63b09
