[INFO] cloning repository https://github.com/carlo-pignatiello/json-parser [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/carlo-pignatiello/json-parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarlo-pignatiello%2Fjson-parser", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarlo-pignatiello%2Fjson-parser'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2ed7ec6f16b551fbc8f0c0e70e6eaa1f40ed77b6 [INFO] checking carlo-pignatiello/json-parser against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarlo-pignatiello%2Fjson-parser" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/carlo-pignatiello/json-parser [INFO] finished tweaking git repo https://github.com/carlo-pignatiello/json-parser [INFO] tweaked toml for git repo https://github.com/carlo-pignatiello/json-parser written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/carlo-pignatiello/json-parser on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/carlo-pignatiello/json-parser 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2d9d44e34ba9bc23d3978e5a1f9dffff3a3fcf267e1223eff5727d993e5e8556 [INFO] running `Command { std: "docker" "start" "-a" "2d9d44e34ba9bc23d3978e5a1f9dffff3a3fcf267e1223eff5727d993e5e8556", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2d9d44e34ba9bc23d3978e5a1f9dffff3a3fcf267e1223eff5727d993e5e8556", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2d9d44e34ba9bc23d3978e5a1f9dffff3a3fcf267e1223eff5727d993e5e8556", kill_on_drop: false }` [INFO] [stdout] 2d9d44e34ba9bc23d3978e5a1f9dffff3a3fcf267e1223eff5727d993e5e8556 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bdc737e7678cec79dcff20d8ca53abe5acda88a38678877241b9067bc8972adf [INFO] running `Command { std: "docker" "start" "-a" "bdc737e7678cec79dcff20d8ca53abe5acda88a38678877241b9067bc8972adf", kill_on_drop: false }` [INFO] [stderr] Checking json-parser v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/parse.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 12 | todo!("implement"); [INFO] [stdout] | ------------------ any code following this expression is unreachable [INFO] [stdout] 13 | is_escaping = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/tokenize.rs:129:9 [INFO] [stdout] | [INFO] [stdout] 129 | _ => todo!("implement other tokens"), [INFO] [stdout] | ^ no value can reach this [INFO] [stdout] | [INFO] [stdout] note: multiple earlier patterns match some of the same values [INFO] [stdout] --> src/tokenize.rs:129:9 [INFO] [stdout] | [INFO] [stdout] 117 | '{' => Token::LeftBrace, [INFO] [stdout] | --- matches some of the same values [INFO] [stdout] 118 | '}' => Token::RightBrace, [INFO] [stdout] | --- matches some of the same values [INFO] [stdout] 119 | '[' => Token::LeftBracket, [INFO] [stdout] | --- matches some of the same values [INFO] [stdout] 120 | ']' => Token::RightBracket, [INFO] [stdout] | --- matches some of the same values [INFO] [stdout] ... [INFO] [stdout] 129 | _ => todo!("implement other tokens"), [INFO] [stdout] | ^ ...and 7 other patterns collectively make this unreachable [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/parse.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 12 | todo!("implement"); [INFO] [stdout] | ------------------ any code following this expression is unreachable [INFO] [stdout] 13 | is_escaping = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/parse.rs:6:45 [INFO] [stdout] | [INFO] [stdout] 6 | fn parse_string(input: &str) -> ParseResult { [INFO] [stdout] | _____________________________________________^ [INFO] [stdout] 7 | | let mut output = String::new(); [INFO] [stdout] 8 | | let mut is_escaping = false; [INFO] [stdout] 9 | | let mut chars = input.chars(); [INFO] [stdout] ... | [INFO] [stdout] 21 | | Ok(Value::String(output)) [INFO] [stdout] 22 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/parse.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 21 | Ok(Value::String(output)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/parse.rs:24:86 [INFO] [stdout] | [INFO] [stdout] 24 | fn parse_token(tokens: &[Token], index: &mut usize) -> Result{ [INFO] [stdout] | ______________________________________________________________________________________^ [INFO] [stdout] 25 | | let token = &tokens[*index]; [INFO] [stdout] 26 | | match token { [INFO] [stdout] 27 | | Token::Null => todo!("implement null"), [INFO] [stdout] ... | [INFO] [stdout] 36 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/parse.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | / match token { [INFO] [stdout] 27 | | Token::Null => todo!("implement null"), [INFO] [stdout] 28 | | Token::False => todo!("implement false"), [INFO] [stdout] 29 | | Token::True => todo!("implement true"), [INFO] [stdout] ... | [INFO] [stdout] 34 | | _ => todo!("implement other"), [INFO] [stdout] 35 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/parse.rs:30:34 [INFO] [stdout] | [INFO] [stdout] 30 | Token::Number(number) => Ok(Value::Number(*number)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/parse.rs:31:34 [INFO] [stdout] | [INFO] [stdout] 31 | Token::String(string) => parse_string(string), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/parse.rs:51:22 [INFO] [stdout] | [INFO] [stdout] 51 | let actual = parse_token(input, &mut 0).unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/tokenize.rs:129:9 [INFO] [stdout] | [INFO] [stdout] 129 | _ => todo!("implement other tokens"), [INFO] [stdout] | ^ no value can reach this [INFO] [stdout] | [INFO] [stdout] note: multiple earlier patterns match some of the same values [INFO] [stdout] --> src/tokenize.rs:129:9 [INFO] [stdout] | [INFO] [stdout] 117 | '{' => Token::LeftBrace, [INFO] [stdout] | --- matches some of the same values [INFO] [stdout] 118 | '}' => Token::RightBrace, [INFO] [stdout] | --- matches some of the same values [INFO] [stdout] 119 | '[' => Token::LeftBracket, [INFO] [stdout] | --- matches some of the same values [INFO] [stdout] 120 | ']' => Token::RightBracket, [INFO] [stdout] | --- matches some of the same values [INFO] [stdout] ... [INFO] [stdout] 129 | _ => todo!("implement other tokens"), [INFO] [stdout] | ^ ...and 7 other patterns collectively make this unreachable [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Token` is never used [INFO] [stdout] --> src/tokenize.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | pub enum Token { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `TokenizeError` is never used [INFO] [stdout] --> src/tokenize.rs:21:10 [INFO] [stdout] | [INFO] [stdout] 21 | pub enum TokenizeError { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `tokenize_null` is never used [INFO] [stdout] --> src/tokenize.rs:29:4 [INFO] [stdout] | [INFO] [stdout] 29 | fn tokenize_null(char: &Vec, index: &mut usize) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `tokenize_false` is never used [INFO] [stdout] --> src/tokenize.rs:39:4 [INFO] [stdout] | [INFO] [stdout] 39 | fn tokenize_false(chars: &Vec, index: &mut usize) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `tokenize_true` is never used [INFO] [stdout] --> src/tokenize.rs:50:4 [INFO] [stdout] | [INFO] [stdout] 50 | fn tokenize_true(chars: &Vec, index: &mut usize) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `tokenize_float` is never used [INFO] [stdout] --> src/tokenize.rs:61:4 [INFO] [stdout] | [INFO] [stdout] 61 | fn tokenize_float(chars: &Vec, curr_idx: &mut usize) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `tokenize_string` is never used [INFO] [stdout] --> src/tokenize.rs:84:4 [INFO] [stdout] | [INFO] [stdout] 84 | fn tokenize_string(chars: &Vec, index: &mut usize) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `make_token` is never used [INFO] [stdout] --> src/tokenize.rs:107:4 [INFO] [stdout] | [INFO] [stdout] 107 | fn make_token(chars: &Vec, index: &mut usize) -> Result { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `tokenize` is never used [INFO] [stdout] --> src/tokenize.rs:134:8 [INFO] [stdout] | [INFO] [stdout] 134 | pub fn tokenize(input: String) -> Result, TokenizeError> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `ParseResult` is never used [INFO] [stdout] --> src/parse.rs:4:6 [INFO] [stdout] | [INFO] [stdout] 4 | type ParseResult = Result; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_string` is never used [INFO] [stdout] --> src/parse.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn parse_string(input: &str) -> ParseResult { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_token` is never used [INFO] [stdout] --> src/parse.rs:24:4 [INFO] [stdout] | [INFO] [stdout] 24 | fn parse_token(tokens: &[Token], index: &mut usize) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `TokenParseError` is never used [INFO] [stdout] --> src/parse.rs:40:10 [INFO] [stdout] | [INFO] [stdout] 40 | pub enum TokenParseError { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `json-parser` (lib test) due to 7 previous errors; 2 warnings emitted [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/parse.rs:6:45 [INFO] [stdout] | [INFO] [stdout] 6 | fn parse_string(input: &str) -> ParseResult { [INFO] [stdout] | _____________________________________________^ [INFO] [stdout] 7 | | let mut output = String::new(); [INFO] [stdout] 8 | | let mut is_escaping = false; [INFO] [stdout] 9 | | let mut chars = input.chars(); [INFO] [stdout] ... | [INFO] [stdout] 21 | | Ok(Value::String(output)) [INFO] [stdout] 22 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/parse.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 21 | Ok(Value::String(output)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/parse.rs:24:86 [INFO] [stdout] | [INFO] [stdout] 24 | fn parse_token(tokens: &[Token], index: &mut usize) -> Result{ [INFO] [stdout] | ______________________________________________________________________________________^ [INFO] [stdout] 25 | | let token = &tokens[*index]; [INFO] [stdout] 26 | | match token { [INFO] [stdout] 27 | | Token::Null => todo!("implement null"), [INFO] [stdout] ... | [INFO] [stdout] 36 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/parse.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | / match token { [INFO] [stdout] 27 | | Token::Null => todo!("implement null"), [INFO] [stdout] 28 | | Token::False => todo!("implement false"), [INFO] [stdout] 29 | | Token::True => todo!("implement true"), [INFO] [stdout] ... | [INFO] [stdout] 34 | | _ => todo!("implement other"), [INFO] [stdout] 35 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/parse.rs:30:34 [INFO] [stdout] | [INFO] [stdout] 30 | Token::Number(number) => Ok(Value::Number(*number)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/parse.rs:31:34 [INFO] [stdout] | [INFO] [stdout] 31 | Token::String(string) => parse_string(string), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `json-parser` (lib) due to 6 previous errors; 15 warnings emitted [INFO] running `Command { std: "docker" "inspect" "bdc737e7678cec79dcff20d8ca53abe5acda88a38678877241b9067bc8972adf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bdc737e7678cec79dcff20d8ca53abe5acda88a38678877241b9067bc8972adf", kill_on_drop: false }` [INFO] [stdout] bdc737e7678cec79dcff20d8ca53abe5acda88a38678877241b9067bc8972adf