[INFO] cloning repository https://github.com/andoco/rust-json-log-viewer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andoco/rust-json-log-viewer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandoco%2Frust-json-log-viewer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandoco%2Frust-json-log-viewer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 14ab4ebc509549610f1dd5f467f9fdb4aae288d3
[INFO] checking andoco/rust-json-log-viewer against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandoco%2Frust-json-log-viewer" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andoco/rust-json-log-viewer on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andoco/rust-json-log-viewer
[INFO] finished tweaking git repo https://github.com/andoco/rust-json-log-viewer
[INFO] tweaked toml for git repo https://github.com/andoco/rust-json-log-viewer written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/andoco/rust-json-log-viewer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c83a47151e0493ef7b2f89d45b5d29ed90dd835e8cc65b8be53fa593cfd7ac1
[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" "7c83a47151e0493ef7b2f89d45b5d29ed90dd835e8cc65b8be53fa593cfd7ac1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c83a47151e0493ef7b2f89d45b5d29ed90dd835e8cc65b8be53fa593cfd7ac1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c83a47151e0493ef7b2f89d45b5d29ed90dd835e8cc65b8be53fa593cfd7ac1", kill_on_drop: false }`
[INFO] [stdout] 7c83a47151e0493ef7b2f89d45b5d29ed90dd835e8cc65b8be53fa593cfd7ac1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e9562dc0c3d8bf9cf7100abc6a9c05d8284e38cbf527ae385f9b71c5cfdffaa
[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" "3e9562dc0c3d8bf9cf7100abc6a9c05d8284e38cbf527ae385f9b71c5cfdffaa", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking rust-json-log-viewer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.58s
[INFO] running `Command { std: "docker" "inspect" "3e9562dc0c3d8bf9cf7100abc6a9c05d8284e38cbf527ae385f9b71c5cfdffaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e9562dc0c3d8bf9cf7100abc6a9c05d8284e38cbf527ae385f9b71c5cfdffaa", kill_on_drop: false }`
[INFO] [stdout] 3e9562dc0c3d8bf9cf7100abc6a9c05d8284e38cbf527ae385f9b71c5cfdffaa