[INFO] cloning repository https://github.com/M1ngXU/JSON-Parser-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/M1ngXU/JSON-Parser-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FM1ngXU%2FJSON-Parser-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FM1ngXU%2FJSON-Parser-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 084d16fd29110037e747d46f2d096abad1d35b3f
[INFO] checking M1ngXU/JSON-Parser-rs against master#9a42c6509d399fd205917ebce474b31315c5d3e9 for pr-97427
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FM1ngXU%2FJSON-Parser-rs" "/workspace/builds/worker-29/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/M1ngXU/JSON-Parser-rs on toolchain 9a42c6509d399fd205917ebce474b31315c5d3e9
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/M1ngXU/JSON-Parser-rs
[INFO] finished tweaking git repo https://github.com/M1ngXU/JSON-Parser-rs
[INFO] tweaked toml for git repo https://github.com/M1ngXU/JSON-Parser-rs written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate git repo https://github.com/M1ngXU/JSON-Parser-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "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-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d3bff8bb798ca9db25ae8c215d1388118bdf822c876af8255a2170e1947f913
[INFO] running `Command { std: "docker" "start" "-a" "8d3bff8bb798ca9db25ae8c215d1388118bdf822c876af8255a2170e1947f913", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d3bff8bb798ca9db25ae8c215d1388118bdf822c876af8255a2170e1947f913", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d3bff8bb798ca9db25ae8c215d1388118bdf822c876af8255a2170e1947f913", kill_on_drop: false }`
[INFO] [stdout] 8d3bff8bb798ca9db25ae8c215d1388118bdf822c876af8255a2170e1947f913
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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" "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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f21f8b31987a0c38ea9bbf9262df635ff6b46e26006d44836758a890113855a9
[INFO] running `Command { std: "docker" "start" "-a" "f21f8b31987a0c38ea9bbf9262df635ff6b46e26006d44836758a890113855a9", kill_on_drop: false }`
[INFO] [stderr]     Checking json_parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `get_float_safe`
[INFO] [stdout]    --> src/json.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |     pub fn get_float_safe(&self) -> ParseResult<&f64> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_float`
[INFO] [stdout]    --> src/json.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn get_float(&self) -> &f64 {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_integer_safe`
[INFO] [stdout]    --> src/json.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn get_integer_safe(&self) -> ParseResult<&i64> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_integer`
[INFO] [stdout]    --> src/json.rs:126:9
[INFO] [stdout]     |
[INFO] [stdout] 126 |     pub fn get_integer(&self) -> &i64 {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_boolean_safe`
[INFO] [stdout]    --> src/json.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn get_boolean_safe(&self) -> ParseResult<&bool> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_bool`
[INFO] [stdout]    --> src/json.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn get_bool(&self) -> &bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_null`
[INFO] [stdout]    --> src/json.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub fn is_null(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Other`
[INFO] [stdout]  --> src/error.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Other(String)
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `JSONParseErrorType` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/error.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Clone, PartialEq)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Other`
[INFO] [stdout]  --> src/error.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Other(String)
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `JSONParseErrorType` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/error.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Clone, PartialEq)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "f21f8b31987a0c38ea9bbf9262df635ff6b46e26006d44836758a890113855a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f21f8b31987a0c38ea9bbf9262df635ff6b46e26006d44836758a890113855a9", kill_on_drop: false }`
[INFO] [stdout] f21f8b31987a0c38ea9bbf9262df635ff6b46e26006d44836758a890113855a9