[INFO] cloning repository https://github.com/ifukazoo/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/ifukazoo/json-parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fifukazoo%2Fjson-parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fifukazoo%2Fjson-parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f184c8047d959b28dbdaf9a4bea1e8ecc998841b
[INFO] checking ifukazoo/json-parser against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fifukazoo%2Fjson-parser" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ifukazoo/json-parser on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ifukazoo/json-parser
[INFO] finished tweaking git repo https://github.com/ifukazoo/json-parser
[INFO] tweaked toml for git repo https://github.com/ifukazoo/json-parser written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/ifukazoo/json-parser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c31906263f9ce5c7c5624aeb3a99003107f11320711a3160abf1da8270d1fe3
[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" "5c31906263f9ce5c7c5624aeb3a99003107f11320711a3160abf1da8270d1fe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c31906263f9ce5c7c5624aeb3a99003107f11320711a3160abf1da8270d1fe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c31906263f9ce5c7c5624aeb3a99003107f11320711a3160abf1da8270d1fe3", kill_on_drop: false }`
[INFO] [stdout] 5c31906263f9ce5c7c5624aeb3a99003107f11320711a3160abf1da8270d1fe3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4a76f7f8c8c79a77a3647c46b893536e966311de07c1c75b7dcb646fb44ba5c
[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" "d4a76f7f8c8c79a77a3647c46b893536e966311de07c1c75b7dcb646fb44ba5c", kill_on_drop: false }`
[INFO] [stderr]     Checking json-parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/lexer.rs:290:9
[INFO] [stdout]     |
[INFO] [stdout] 290 |         ///
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 291 |         Token::new(StrBody, 0, 2), //
[INFO] [stdout]     |         ------------------------- rustdoc does not generate documentation for expressions
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/lexer.rs:330:9
[INFO] [stdout]     |
[INFO] [stdout] 330 |         ///
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 331 |         Token::new(IllegalToken, 0, 1), //
[INFO] [stdout]     |         ------------------------------ rustdoc does not generate documentation for expressions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "d4a76f7f8c8c79a77a3647c46b893536e966311de07c1c75b7dcb646fb44ba5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4a76f7f8c8c79a77a3647c46b893536e966311de07c1c75b7dcb646fb44ba5c", kill_on_drop: false }`
[INFO] [stdout] d4a76f7f8c8c79a77a3647c46b893536e966311de07c1c75b7dcb646fb44ba5c