[INFO] cloning repository https://github.com/Errol-Hassall/rust-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/Errol-Hassall/rust-json-parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErrol-Hassall%2Frust-json-parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErrol-Hassall%2Frust-json-parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 24a820bee7704bd18482c958adfd84dddb19252d
[INFO] checking Errol-Hassall/rust-json-parser against try#b8ee37b59c6e1f39bae18b85e057975ab0d89308 for pr-139587-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErrol-Hassall%2Frust-json-parser" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Errol-Hassall/rust-json-parser on toolchain b8ee37b59c6e1f39bae18b85e057975ab0d89308
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b8ee37b59c6e1f39bae18b85e057975ab0d89308" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Errol-Hassall/rust-json-parser
[INFO] finished tweaking git repo https://github.com/Errol-Hassall/rust-json-parser
[INFO] tweaked toml for git repo https://github.com/Errol-Hassall/rust-json-parser written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Errol-Hassall/rust-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" "+b8ee37b59c6e1f39bae18b85e057975ab0d89308" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+b8ee37b59c6e1f39bae18b85e057975ab0d89308" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 397aebae16d922c11e6f4390ea88d145b7140b329f59d49ede791b130fe9066f
[INFO] running `Command { std: "docker" "start" "-a" "397aebae16d922c11e6f4390ea88d145b7140b329f59d49ede791b130fe9066f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "397aebae16d922c11e6f4390ea88d145b7140b329f59d49ede791b130fe9066f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "397aebae16d922c11e6f4390ea88d145b7140b329f59d49ede791b130fe9066f", kill_on_drop: false }`
[INFO] [stdout] 397aebae16d922c11e6f4390ea88d145b7140b329f59d49ede791b130fe9066f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+b8ee37b59c6e1f39bae18b85e057975ab0d89308" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 759728d4a51b9a3fc8aacc4d90b4b5e5ddeed554afd6f44cbd5dcd3b0cd746f9
[INFO] running `Command { std: "docker" "start" "-a" "759728d4a51b9a3fc8aacc4d90b4b5e5ddeed554afd6f44cbd5dcd3b0cd746f9", kill_on_drop: false }`
[INFO] [stderr]     Checking json-parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::tokenize::TokenizeError::UnfinishedLiteralValue`
[INFO] [stdout]  --> src/tokenize.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::tokenize::TokenizeError::UnfinishedLiteralValue;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::char::ParseCharError`
[INFO] [stdout]  --> src/tokenize.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::char::ParseCharError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::Chars`
[INFO] [stdout]  --> src/tokenize.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::str::Chars;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::tokenize::TokenizeError::UnfinishedLiteralValue`
[INFO] [stdout]  --> src/tokenize.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::tokenize::TokenizeError::UnfinishedLiteralValue;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::char::ParseCharError`
[INFO] [stdout]  --> src/tokenize.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::char::ParseCharError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::Chars`
[INFO] [stdout]  --> src/tokenize.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::str::Chars;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `has_negative` is assigned to, but never used
[INFO] [stdout]   --> src/tokenize.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let mut has_negative = false;
[INFO] [stdout]    |             ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_has_negative` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `has_negative` is never read
[INFO] [stdout]    --> src/tokenize.rs:103:17
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 has_negative = true;
[INFO] [stdout]     |                 ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tokenize` is never used
[INFO] [stdout]  --> src/tokenize.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn tokenize(input: String) -> Result<Vec<Token>, TokenizeError> {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_token` is never used
[INFO] [stdout]   --> src/tokenize.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn make_token(chars: &[char], index: &mut usize) -> Result<Token, TokenizeError> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tokenize_string` is never used
[INFO] [stdout]   --> src/tokenize.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn tokenize_string(chars: &[char], current_index: &mut usize) -> Result<Token, TokenizeError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tokenize_float` is never used
[INFO] [stdout]   --> src/tokenize.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn tokenize_float(chars: &[char], curr_index: &mut usize) -> Result<Token, TokenizeError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tokenize_literal` is never used
[INFO] [stdout]    --> src/tokenize.rs:117:4
[INFO] [stdout]     |
[INFO] [stdout] 117 | fn tokenize_literal(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `UnfinishedLiteralValue`, `ParseNumberError`, `UnclosedQuotes`, `UnexpectedEof`, and `CharNotRecognized` are never constructed
[INFO] [stdout]    --> src/tokenize.rs:137:5
[INFO] [stdout]     |
[INFO] [stdout] 136 | pub enum TokenizeError {
[INFO] [stdout]     |          ------------- variants in this enum
[INFO] [stdout] 137 |     UnfinishedLiteralValue,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 138 |     ParseNumberError(ParseFloatError),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 139 |     UnclosedQuotes,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 140 |     UnexpectedEof,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 141 |     CharNotRecognized(char),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TokenizeError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]    --> src/tokenize.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 145 | pub enum Token {
[INFO] [stdout]     |          ----- variants in this enum
[INFO] [stdout] 146 |     /// `{`
[INFO] [stdout] 147 |     LeftBrace,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 148 |     /// `}`
[INFO] [stdout] 149 |     RightBrace,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 150 |     /// `[`
[INFO] [stdout] 151 |     LeftBracket,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 152 |     /// `]`
[INFO] [stdout] 153 |     RightBracket,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 154 |     /// `,`
[INFO] [stdout] 155 |     Comma,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 156 |     /// `:`
[INFO] [stdout] 157 |     Colon,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 158 |     /// `null`
[INFO] [stdout] 159 |     Null,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 160 |     /// `false`
[INFO] [stdout] 161 |     False,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 162 |     /// `true`
[INFO] [stdout] 163 |     True,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 164 |     /// Any number literal
[INFO] [stdout] 165 |     Number(f64),
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 166 |     /// Key of the key/value pair or string value
[INFO] [stdout] 167 |     String(String),
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `has_negative` is assigned to, but never used
[INFO] [stdout]   --> src/tokenize.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let mut has_negative = false;
[INFO] [stdout]    |             ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_has_negative` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `has_negative` is never read
[INFO] [stdout]    --> src/tokenize.rs:103:17
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 has_negative = true;
[INFO] [stdout]     |                 ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "759728d4a51b9a3fc8aacc4d90b4b5e5ddeed554afd6f44cbd5dcd3b0cd746f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "759728d4a51b9a3fc8aacc4d90b4b5e5ddeed554afd6f44cbd5dcd3b0cd746f9", kill_on_drop: false }`
[INFO] [stdout] 759728d4a51b9a3fc8aacc4d90b4b5e5ddeed554afd6f44cbd5dcd3b0cd746f9