[INFO] updating cached repository https://github.com/shapled/rust-json-parser-practise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c8ba1899e7c1a2511f9ac75b06947ae3a9006f83
[INFO] checking shapled/rust-json-parser-practise against master#4fb54ed484e2239a3e9eff3be17df00d2a162be3 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshapled%2Frust-json-parser-practise" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shapled/rust-json-parser-practise on toolchain 4fb54ed484e2239a3e9eff3be17df00d2a162be3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shapled/rust-json-parser-practise
[INFO] finished tweaking git repo https://github.com/shapled/rust-json-parser-practise
[INFO] tweaked toml for git repo https://github.com/shapled/rust-json-parser-practise written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/shapled/rust-json-parser-practise already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c610d85e2673fe769465abcb83afa322eea73620ef0ae7514ddef349ffd43946
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c610d85e2673fe769465abcb83afa322eea73620ef0ae7514ddef349ffd43946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c610d85e2673fe769465abcb83afa322eea73620ef0ae7514ddef349ffd43946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c610d85e2673fe769465abcb83afa322eea73620ef0ae7514ddef349ffd43946", kill_on_drop: false }`
[INFO] [stdout] c610d85e2673fe769465abcb83afa322eea73620ef0ae7514ddef349ffd43946
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d0b1a220e3525dbda72190f13f29e72e7362fedadffe1c81774d5187545f8ac3
[INFO] running `Command { std: "docker" "start" "-a" "d0b1a220e3525dbda72190f13f29e72e7362fedadffe1c81774d5187545f8ac3", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling ucd-trie v0.1.2
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]    Compiling pest v2.1.2
[INFO] [stderr]    Compiling nom v5.0.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling pest_meta v2.1.2
[INFO] [stderr]    Compiling pest_generator v2.1.1
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking rust-json-parser-practise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `pest::Parser`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use pest::Parser;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nom_json::root`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use nom_json::root;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `JsonParser`
[INFO] [stdout]   --> src/main.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct JsonParser;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_string_character`
[INFO] [stdout]  --> src/nom_json.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn is_string_character(c: u8) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Str`
[INFO] [stdout]   --> src/nom_json.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Str(String),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Boolean`
[INFO] [stdout]   --> src/nom_json.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Boolean(bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Num`
[INFO] [stdout]   --> src/nom_json.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Num(f64),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Array`
[INFO] [stdout]   --> src/nom_json.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Array(Vec<JsonValue>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Object`
[INFO] [stdout]   --> src/nom_json.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Object(HashMap<String, JsonValue>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Null`
[INFO] [stdout]   --> src/nom_json.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Null,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.43s
[INFO] running `Command { std: "docker" "inspect" "d0b1a220e3525dbda72190f13f29e72e7362fedadffe1c81774d5187545f8ac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0b1a220e3525dbda72190f13f29e72e7362fedadffe1c81774d5187545f8ac3", kill_on_drop: false }`
[INFO] [stdout] d0b1a220e3525dbda72190f13f29e72e7362fedadffe1c81774d5187545f8ac3