[INFO] fetching crate json_parser_kevin_wang 0.1.0...
[INFO] testing json_parser_kevin_wang-0.1.0 against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065-1
[INFO] extracting crate json_parser_kevin_wang 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate json_parser_kevin_wang 0.1.0
[INFO] finished tweaking crates.io crate json_parser_kevin_wang 0.1.0
[INFO] tweaked toml for crates.io crate json_parser_kevin_wang 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate json_parser_kevin_wang 0.1.0 on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate json_parser_kevin_wang 0.1.0 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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91771f8b642703e65d176e5fba1bbb8973c45820f72af711bd38e92be7053a42
[INFO] running `Command { std: "docker" "start" "-a" "91771f8b642703e65d176e5fba1bbb8973c45820f72af711bd38e92be7053a42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91771f8b642703e65d176e5fba1bbb8973c45820f72af711bd38e92be7053a42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91771f8b642703e65d176e5fba1bbb8973c45820f72af711bd38e92be7053a42", kill_on_drop: false }`
[INFO] [stdout] 91771f8b642703e65d176e5fba1bbb8973c45820f72af711bd38e92be7053a42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b29c3ec244ae4a53a1eb309c35508974919d7b0360d23e9b9cf8ac793f8818e1
[INFO] running `Command { std: "docker" "start" "-a" "b29c3ec244ae4a53a1eb309c35508974919d7b0360d23e9b9cf8ac793f8818e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling json_parser_kevin_wang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/json_parser.rs:243:26
[INFO] [stdout]     |
[INFO] [stdout] 243 |                     Some(c)=>{
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/json_parser.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Bool(bool),
[INFO] [stdout]    |         ---- ^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `JSONTYPE` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 59 -         Bool(bool),
[INFO] [stdout] 59 +         Bool(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/json_parser.rs:61:16
[INFO] [stdout]    |
[INFO] [stdout] 61 |         Number(f64),
[INFO] [stdout]    |         ------ ^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `JSONTYPE` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 61 -         Number(f64),
[INFO] [stdout] 61 +         Number(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/json_parser.rs:62:16
[INFO] [stdout]    |
[INFO] [stdout] 62 |         Object(HashMap<String, JSONTYPE>),
[INFO] [stdout]    |         ------ ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `JSONTYPE` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 62 -         Object(HashMap<String, JSONTYPE>),
[INFO] [stdout] 62 +         Object(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/json_parser.rs:63:15
[INFO] [stdout]    |
[INFO] [stdout] 63 |         Array(Vec<JSONTYPE>),
[INFO] [stdout]    |         ----- ^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `JSONTYPE` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 63 -         Array(Vec<JSONTYPE>),
[INFO] [stdout] 63 +         Array(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "b29c3ec244ae4a53a1eb309c35508974919d7b0360d23e9b9cf8ac793f8818e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b29c3ec244ae4a53a1eb309c35508974919d7b0360d23e9b9cf8ac793f8818e1", kill_on_drop: false }`
[INFO] [stdout] b29c3ec244ae4a53a1eb309c35508974919d7b0360d23e9b9cf8ac793f8818e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fef3a936fe479929d61c047ac12844add1c3eb06819142868ad8aac5f3d4322
[INFO] running `Command { std: "docker" "start" "-a" "3fef3a936fe479929d61c047ac12844add1c3eb06819142868ad8aac5f3d4322", kill_on_drop: false }`
[INFO] [stderr]    Compiling json_parser_kevin_wang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/json_parser.rs:243:26
[INFO] [stdout]     |
[INFO] [stdout] 243 |                     Some(c)=>{
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/json_parser.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Bool(bool),
[INFO] [stdout]    |         ---- ^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `JSONTYPE` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 59 -         Bool(bool),
[INFO] [stdout] 59 +         Bool(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/json_parser.rs:61:16
[INFO] [stdout]    |
[INFO] [stdout] 61 |         Number(f64),
[INFO] [stdout]    |         ------ ^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `JSONTYPE` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 61 -         Number(f64),
[INFO] [stdout] 61 +         Number(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/json_parser.rs:62:16
[INFO] [stdout]    |
[INFO] [stdout] 62 |         Object(HashMap<String, JSONTYPE>),
[INFO] [stdout]    |         ------ ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `JSONTYPE` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 62 -         Object(HashMap<String, JSONTYPE>),
[INFO] [stdout] 62 +         Object(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/json_parser.rs:63:15
[INFO] [stdout]    |
[INFO] [stdout] 63 |         Array(Vec<JSONTYPE>),
[INFO] [stdout]    |         ----- ^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `JSONTYPE` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 63 -         Array(Vec<JSONTYPE>),
[INFO] [stdout] 63 +         Array(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "3fef3a936fe479929d61c047ac12844add1c3eb06819142868ad8aac5f3d4322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fef3a936fe479929d61c047ac12844add1c3eb06819142868ad8aac5f3d4322", kill_on_drop: false }`
[INFO] [stdout] 3fef3a936fe479929d61c047ac12844add1c3eb06819142868ad8aac5f3d4322
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5759da38023548877677f57368227a693681297e00f05fdf883575e0021e4e06
[INFO] running `Command { std: "docker" "start" "-a" "5759da38023548877677f57368227a693681297e00f05fdf883575e0021e4e06", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stdout] 
[INFO] [stderr]    --> src/json_parser.rs:243:26
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 243 |                     Some(c)=>{
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |                          ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/json_parser.rs:59:14
[INFO] [stderr]    |
[INFO] [stderr] 59 |         Bool(bool),
[INFO] [stderr]    |         ---- ^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `JSONTYPE` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 59 -         Bool(bool),
[INFO] [stderr] 59 +         Bool(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/json_parser.rs:61:16
[INFO] [stderr]    |
[INFO] [stderr] 61 |         Number(f64),
[INFO] [stderr]    |         ------ ^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `JSONTYPE` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 61 -         Number(f64),
[INFO] [stderr] 61 +         Number(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/json_parser.rs:62:16
[INFO] [stderr]    |
[INFO] [stderr] 62 |         Object(HashMap<String, JSONTYPE>),
[INFO] [stderr]    |         ------ ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `JSONTYPE` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 62 -         Object(HashMap<String, JSONTYPE>),
[INFO] [stderr] 62 +         Object(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/json_parser.rs:63:15
[INFO] [stderr]    |
[INFO] [stderr] 63 |         Array(Vec<JSONTYPE>),
[INFO] [stderr]    |         ----- ^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `JSONTYPE` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 63 -         Array(Vec<JSONTYPE>),
[INFO] [stderr] 63 +         Array(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `json_parser_kevin_wang` (bin "json_parser_kevin_wang" test) generated 5 warnings (run `cargo fix --bin "json_parser_kevin_wang" -p json_parser_kevin_wang --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/json_parser_kevin_wang-2dbacbb4e9d5488a)
[INFO] running `Command { std: "docker" "inspect" "5759da38023548877677f57368227a693681297e00f05fdf883575e0021e4e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5759da38023548877677f57368227a693681297e00f05fdf883575e0021e4e06", kill_on_drop: false }`
[INFO] [stdout] 5759da38023548877677f57368227a693681297e00f05fdf883575e0021e4e06
