[INFO] fetching crate ripjson 0.9.6...
[INFO] checking ripjson-0.9.6 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] extracting crate ripjson 0.9.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate ripjson 0.9.6 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ripjson 0.9.6
[INFO] finished tweaking crates.io crate ripjson 0.9.6
[INFO] tweaked toml for crates.io crate ripjson 0.9.6 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate ripjson 0.9.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indextree v3.3.0
[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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb38893d2bebe41a236b12b26a4f1cac92dcc2ae3e59d84d82239903c0caa43f
[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" "cb38893d2bebe41a236b12b26a4f1cac92dcc2ae3e59d84d82239903c0caa43f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb38893d2bebe41a236b12b26a4f1cac92dcc2ae3e59d84d82239903c0caa43f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb38893d2bebe41a236b12b26a4f1cac92dcc2ae3e59d84d82239903c0caa43f", kill_on_drop: false }`
[INFO] [stdout] cb38893d2bebe41a236b12b26a4f1cac92dcc2ae3e59d84d82239903c0caa43f
[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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d129d3a6562f337d3de77dfc1fb311d981d2dd154fd76c9586b93b234522653c
[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" "d129d3a6562f337d3de77dfc1fb311d981d2dd154fd76c9586b93b234522653c", kill_on_drop: false }`
[INFO] [stderr]     Checking environment v0.1.1
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]     Checking colored v1.9.0
[INFO] [stderr]     Checking backtrace-sys v0.1.32
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking indextree v3.3.0
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking assert_cli v0.6.3
[INFO] [stderr]     Checking ripjson v0.9.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.65s
[INFO] running `Command { std: "docker" "inspect" "d129d3a6562f337d3de77dfc1fb311d981d2dd154fd76c9586b93b234522653c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d129d3a6562f337d3de77dfc1fb311d981d2dd154fd76c9586b93b234522653c", kill_on_drop: false }`
[INFO] [stdout] d129d3a6562f337d3de77dfc1fb311d981d2dd154fd76c9586b93b234522653c