[INFO] cloning repository https://github.com/GhostBat101/json_in_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GhostBat101/json_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGhostBat101%2Fjson_in_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGhostBat101%2Fjson_in_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 15964dbc2fa35164da5b1e406006036cc84c9868
[INFO] checking GhostBat101/json_in_rust against master#00bfd6b2734d9c28a147bf237490995731781fdd for pr-117984
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGhostBat101%2Fjson_in_rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GhostBat101/json_in_rust on toolchain 00bfd6b2734d9c28a147bf237490995731781fdd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/GhostBat101/json_in_rust
[INFO] finished tweaking git repo https://github.com/GhostBat101/json_in_rust
[INFO] tweaked toml for git repo https://github.com/GhostBat101/json_in_rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/GhostBat101/json_in_rust 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" "+00bfd6b2734d9c28a147bf237490995731781fdd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6cfd885a0b3c77e14258d6145b4bde46c892970911b0ae1139a816fb5287d45
[INFO] running `Command { std: "docker" "start" "-a" "d6cfd885a0b3c77e14258d6145b4bde46c892970911b0ae1139a816fb5287d45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6cfd885a0b3c77e14258d6145b4bde46c892970911b0ae1139a816fb5287d45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6cfd885a0b3c77e14258d6145b4bde46c892970911b0ae1139a816fb5287d45", kill_on_drop: false }`
[INFO] [stdout] d6cfd885a0b3c77e14258d6145b4bde46c892970911b0ae1139a816fb5287d45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1db845a7c4711a9a5ee9ac2ce89de3e07ffb2e9e06a28605e86d7f52199abb24
[INFO] running `Command { std: "docker" "start" "-a" "1db845a7c4711a9a5ee9ac2ce89de3e07ffb2e9e06a28605e86d7f52199abb24", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]     Checking serde v1.0.127
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]     Checking json_int_rust_first v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.81s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "1db845a7c4711a9a5ee9ac2ce89de3e07ffb2e9e06a28605e86d7f52199abb24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1db845a7c4711a9a5ee9ac2ce89de3e07ffb2e9e06a28605e86d7f52199abb24", kill_on_drop: false }`
[INFO] [stdout] 1db845a7c4711a9a5ee9ac2ce89de3e07ffb2e9e06a28605e86d7f52199abb24