[INFO] updating cached repository https://github.com/sanderhahn/toml_to_json
[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] 5f1ea398e541cf3dadd1ab8e4ae66c1e918ecc7e
[INFO] checking sanderhahn/toml_to_json against master#e22b61bff0bdd08be7665607cb7be3748c8a35d2 for pr-74627
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsanderhahn%2Ftoml_to_json" "/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/sanderhahn/toml_to_json on toolchain e22b61bff0bdd08be7665607cb7be3748c8a35d2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sanderhahn/toml_to_json
[INFO] finished tweaking git repo https://github.com/sanderhahn/toml_to_json
[INFO] tweaked toml for git repo https://github.com/sanderhahn/toml_to_json written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/sanderhahn/toml_to_json already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "fetch" "--locked" "--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" "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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9dca929a3edc86d1c6e80c29a889d4f81eb413f8fb0020413f20d6e10636ab6f
[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" "9dca929a3edc86d1c6e80c29a889d4f81eb413f8fb0020413f20d6e10636ab6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9dca929a3edc86d1c6e80c29a889d4f81eb413f8fb0020413f20d6e10636ab6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dca929a3edc86d1c6e80c29a889d4f81eb413f8fb0020413f20d6e10636ab6f", kill_on_drop: false }`
[INFO] [stdout] 9dca929a3edc86d1c6e80c29a889d4f81eb413f8fb0020413f20d6e10636ab6f
[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" "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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a72152ffaa33f911fa80ad44c13f4186edab52b15b691cdaa8e9e92ec282f0a7
[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" "a72152ffaa33f911fa80ad44c13f4186edab52b15b691cdaa8e9e92ec282f0a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]     Checking serde_json v1.0.42
[INFO] [stderr]     Checking toml_to_json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.79s
[INFO] running `Command { std: "docker" "inspect" "a72152ffaa33f911fa80ad44c13f4186edab52b15b691cdaa8e9e92ec282f0a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a72152ffaa33f911fa80ad44c13f4186edab52b15b691cdaa8e9e92ec282f0a7", kill_on_drop: false }`
[INFO] [stdout] a72152ffaa33f911fa80ad44c13f4186edab52b15b691cdaa8e9e92ec282f0a7