[INFO] cloning repository https://github.com/Yuta1004/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/Yuta1004/json_parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYuta1004%2Fjson_parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYuta1004%2Fjson_parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4aa0d82f276d8fcf9953e714cf170b4c6c388aa
[INFO] testing Yuta1004/json_parser against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYuta1004%2Fjson_parser" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Yuta1004/json_parser on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Yuta1004/json_parser
[INFO] finished tweaking git repo https://github.com/Yuta1004/json_parser
[INFO] tweaked toml for git repo https://github.com/Yuta1004/json_parser written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Yuta1004/json_parser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c866710d32ad82dd998cc6f4069b64827f540494b123c3b256b254f6ae596d86
[INFO] running `Command { std: "docker" "start" "-a" "c866710d32ad82dd998cc6f4069b64827f540494b123c3b256b254f6ae596d86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c866710d32ad82dd998cc6f4069b64827f540494b123c3b256b254f6ae596d86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c866710d32ad82dd998cc6f4069b64827f540494b123c3b256b254f6ae596d86", kill_on_drop: false }`
[INFO] [stdout] c866710d32ad82dd998cc6f4069b64827f540494b123c3b256b254f6ae596d86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2dd863539f610f7c53bccaf25194af7fe8bfdd0c1d5414be881ce710fd043449
[INFO] running `Command { std: "docker" "start" "-a" "2dd863539f610f7c53bccaf25194af7fe8bfdd0c1d5414be881ce710fd043449", kill_on_drop: false }`
[INFO] [stderr]    Compiling json_parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `Value`
[INFO] [stdout]  --> src/parser/mtype/value.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Value {
[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: `new_num`
[INFO] [stdout]  --> src/parser/mtype/value.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new_num(val: i32) -> Value {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_bool`
[INFO] [stdout]   --> src/parser/mtype/value.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new_bool(val: bool) -> Value {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_str`
[INFO] [stdout]   --> src/parser/mtype/value.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new_str(val: impl Into<String>) -> Value {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Array`
[INFO] [stdout]  --> src/parser/mtype/array.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Array {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/parser/mtype/array.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn new() -> Array {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push`
[INFO] [stdout]   --> src/parser/mtype/array.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn push(self: &mut Array, val: Value) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/parser/mtype/array.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn len(self: &Array) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "2dd863539f610f7c53bccaf25194af7fe8bfdd0c1d5414be881ce710fd043449", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dd863539f610f7c53bccaf25194af7fe8bfdd0c1d5414be881ce710fd043449", kill_on_drop: false }`
[INFO] [stdout] 2dd863539f610f7c53bccaf25194af7fe8bfdd0c1d5414be881ce710fd043449
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 367b9562e43c44b52e61c15d24c1e42215a81725bb54b8cb8fa0e3176f98359c
[INFO] running `Command { std: "docker" "start" "-a" "367b9562e43c44b52e61c15d24c1e42215a81725bb54b8cb8fa0e3176f98359c", kill_on_drop: false }`
[INFO] [stdout] warning: enum is never used: `Value`
[INFO] [stdout]  --> src/parser/mtype/value.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Value {
[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: `new_num`
[INFO] [stdout]  --> src/parser/mtype/value.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new_num(val: i32) -> Value {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_bool`
[INFO] [stdout]   --> src/parser/mtype/value.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new_bool(val: bool) -> Value {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_str`
[INFO] [stdout]   --> src/parser/mtype/value.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new_str(val: impl Into<String>) -> Value {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Array`
[INFO] [stdout]  --> src/parser/mtype/array.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Array {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/parser/mtype/array.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn new() -> Array {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push`
[INFO] [stdout]   --> src/parser/mtype/array.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn push(self: &mut Array, val: Value) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/parser/mtype/array.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn len(self: &Array) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling json_parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "367b9562e43c44b52e61c15d24c1e42215a81725bb54b8cb8fa0e3176f98359c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "367b9562e43c44b52e61c15d24c1e42215a81725bb54b8cb8fa0e3176f98359c", kill_on_drop: false }`
[INFO] [stdout] 367b9562e43c44b52e61c15d24c1e42215a81725bb54b8cb8fa0e3176f98359c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a7530b84273d8e0a96e7e080cb66a1bef23f205fa2bdf0a34e70c6a0e39b68a7
[INFO] running `Command { std: "docker" "start" "-a" "a7530b84273d8e0a96e7e080cb66a1bef23f205fa2bdf0a34e70c6a0e39b68a7", kill_on_drop: false }`
[INFO] [stderr] warning: enum is never used: `Value`
[INFO] [stderr]  --> src/parser/mtype/value.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub enum Value {
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_num`
[INFO] [stderr]  --> src/parser/mtype/value.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new_num(val: i32) -> Value {
[INFO] [stderr]   |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_bool`
[INFO] [stderr]   --> src/parser/mtype/value.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn new_bool(val: bool) -> Value {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_str`
[INFO] [stderr]   --> src/parser/mtype/value.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn new_str(val: impl Into<String>) -> Value {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Array`
[INFO] [stderr]  --> src/parser/mtype/array.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Array {
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/parser/mtype/array.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn new() -> Array {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `push`
[INFO] [stderr]   --> src/parser/mtype/array.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn push(self: &mut Array, val: Value) {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `len`
[INFO] [stderr]   --> src/parser/mtype/array.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn len(self: &Array) -> usize {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `json_parser` (lib) generated 8 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/json_parser-8cc9fd2451f98b6d)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test parser::mtype::array::test_array ... ok
[INFO] [stdout] test parser::mtype::value::test_value_new ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/json_parser-5b03d6658104a981)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests json_parser
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a7530b84273d8e0a96e7e080cb66a1bef23f205fa2bdf0a34e70c6a0e39b68a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7530b84273d8e0a96e7e080cb66a1bef23f205fa2bdf0a34e70c6a0e39b68a7", kill_on_drop: false }`
[INFO] [stdout] a7530b84273d8e0a96e7e080cb66a1bef23f205fa2bdf0a34e70c6a0e39b68a7