[INFO] cloning repository https://github.com/Songbird0/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/Songbird0/json_parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSongbird0%2Fjson_parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSongbird0%2Fjson_parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 57805891c3e1d38450840bf8a199ff408adbd851
[INFO] checking Songbird0/json_parser against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSongbird0%2Fjson_parser" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Songbird0/json_parser
[INFO] finished tweaking git repo https://github.com/Songbird0/json_parser
[INFO] tweaked toml for git repo https://github.com/Songbird0/json_parser written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Songbird0/json_parser on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Songbird0/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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad6db01882671682021bc62d0f6e4753a8251c1b2175f22a6c0b86e38483bf93
[INFO] running `Command { std: "docker" "start" "-a" "ad6db01882671682021bc62d0f6e4753a8251c1b2175f22a6c0b86e38483bf93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad6db01882671682021bc62d0f6e4753a8251c1b2175f22a6c0b86e38483bf93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad6db01882671682021bc62d0f6e4753a8251c1b2175f22a6c0b86e38483bf93", kill_on_drop: false }`
[INFO] [stdout] ad6db01882671682021bc62d0f6e4753a8251c1b2175f22a6c0b86e38483bf93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 479be1ccca36951a525f2f98776b3d2e054a25277f921b35412ed18d2ee9afe8
[INFO] running `Command { std: "docker" "start" "-a" "479be1ccca36951a525f2f98776b3d2e054a25277f921b35412ed18d2ee9afe8", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking json_parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `nom::is_alphanumeric`
[INFO] [stdout]  --> src/parsers/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use nom::is_alphanumeric;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nom::is_alphanumeric`
[INFO] [stdout]  --> src/parsers/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use nom::is_alphanumeric;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `JsonObject` is never constructed
[INFO] [stdout]   --> src/ast/entries.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct JsonObject<K: Key, V>{
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `entry_list` is never read
[INFO] [stdout]   --> src/ast/entries.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct JsonObject<K: Key, V>{
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 18 |     entry_list: EntryList<K, V>
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key` and `value` are never read
[INFO] [stdout]   --> src/ast/entries.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Entry<K: Key, V> {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 22 |     key: K,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 23 |     value: Value<V>
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `KeyString` is never constructed
[INFO] [stdout]  --> src/ast/keys.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct KeyString {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `KeyI64` is never constructed
[INFO] [stdout]   --> src/ast/keys.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct KeyI64 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]  --> src/ast/values.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Value<V> {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 3 |     data: V
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on generic parameters in type aliases are not enforced
[INFO] [stdout]  --> src/ast/entries.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub type EntryList<K: Key, V> = Option<Vec<Entry<K, Value<V>>>>;
[INFO] [stdout]   |                       ^^^ will not be checked at usage sites of the type alias
[INFO] [stdout]   |
[INFO] [stdout]   = note: this is a known limitation of the type checker that may be lifted in a future edition.
[INFO] [stdout]           see issue #112792 <https://github.com/rust-lang/rust/issues/112792> for more information
[INFO] [stdout]   = help: add `#![feature(lazy_type_alias)]` to the crate attributes to enable the desired semantics
[INFO] [stdout]   = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stdout] help: remove this bound
[INFO] [stdout]   |
[INFO] [stdout] 6 - pub type EntryList<K: Key, V> = Option<Vec<Entry<K, Value<V>>>>;
[INFO] [stdout] 6 + pub type EntryList<K, V> = Option<Vec<Entry<K, Value<V>>>>;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `json_parser` (lib test) due to 3 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `JsonObject` is never constructed
[INFO] [stdout]   --> src/ast/entries.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct JsonObject<K: Key, V>{
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `json_parser` (lib) due to 3 previous errors; 5 warnings emitted
[INFO] [stdout] warning: field `entry_list` is never read
[INFO] [stdout]   --> src/ast/entries.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct JsonObject<K: Key, V>{
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 18 |     entry_list: EntryList<K, V>
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key` and `value` are never read
[INFO] [stdout]   --> src/ast/entries.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Entry<K: Key, V> {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 22 |     key: K,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 23 |     value: Value<V>
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `KeyString` is never constructed
[INFO] [stdout]  --> src/ast/keys.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct KeyString {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `KeyI64` is never constructed
[INFO] [stdout]   --> src/ast/keys.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct KeyI64 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]  --> src/ast/values.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Value<V> {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 3 |     data: V
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on generic parameters in type aliases are not enforced
[INFO] [stdout]  --> src/ast/entries.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub type EntryList<K: Key, V> = Option<Vec<Entry<K, Value<V>>>>;
[INFO] [stdout]   |                       ^^^ will not be checked at usage sites of the type alias
[INFO] [stdout]   |
[INFO] [stdout]   = note: this is a known limitation of the type checker that may be lifted in a future edition.
[INFO] [stdout]           see issue #112792 <https://github.com/rust-lang/rust/issues/112792> for more information
[INFO] [stdout]   = help: add `#![feature(lazy_type_alias)]` to the crate attributes to enable the desired semantics
[INFO] [stdout]   = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stdout] help: remove this bound
[INFO] [stdout]   |
[INFO] [stdout] 6 - pub type EntryList<K: Key, V> = Option<Vec<Entry<K, Value<V>>>>;
[INFO] [stdout] 6 + pub type EntryList<K, V> = Option<Vec<Entry<K, Value<V>>>>;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "479be1ccca36951a525f2f98776b3d2e054a25277f921b35412ed18d2ee9afe8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "479be1ccca36951a525f2f98776b3d2e054a25277f921b35412ed18d2ee9afe8", kill_on_drop: false }`
[INFO] [stdout] 479be1ccca36951a525f2f98776b3d2e054a25277f921b35412ed18d2ee9afe8
