[INFO] cloning repository https://github.com/wookong-dot/solo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wookong-dot/solo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwookong-dot%2Fsolo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwookong-dot%2Fsolo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ed55d0c7e30c6e6cd9c0f0fb6b6711d31a1c468a
[INFO] checking wookong-dot/solo against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwookong-dot%2Fsolo" "/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/wookong-dot/solo 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/wookong-dot/solo
[INFO] finished tweaking git repo https://github.com/wookong-dot/solo
[INFO] tweaked toml for git repo https://github.com/wookong-dot/solo written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/wookong-dot/solo 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] [stderr] error: the lock file /workspace/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 573c651a109d096b2134bfc31e142b3a639b4e258a544357b55342b09aa4b6a7
[INFO] running `Command { std: "docker" "start" "-a" "573c651a109d096b2134bfc31e142b3a639b4e258a544357b55342b09aa4b6a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "573c651a109d096b2134bfc31e142b3a639b4e258a544357b55342b09aa4b6a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "573c651a109d096b2134bfc31e142b3a639b4e258a544357b55342b09aa4b6a7", kill_on_drop: false }`
[INFO] [stdout] 573c651a109d096b2134bfc31e142b3a639b4e258a544357b55342b09aa4b6a7
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88d33aa9b478637d1178154d8a0fa98bf84417680c5e9b7bed9888db9352d5e0
[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" "88d33aa9b478637d1178154d8a0fa98bf84417680c5e9b7bed9888db9352d5e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling wookong-solo v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: src/driver/os_uart.c: In function 'uart_init':
[INFO] [stderr] warning: src/driver/os_uart.c:26:8: warning: 'fd' is used uninitialized in this function [-Wuninitialized]
[INFO] [stderr] warning:    26 |     if (fd < 0) /* Error Checking */
[INFO] [stderr] warning:       |        ^
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "88d33aa9b478637d1178154d8a0fa98bf84417680c5e9b7bed9888db9352d5e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88d33aa9b478637d1178154d8a0fa98bf84417680c5e9b7bed9888db9352d5e0", kill_on_drop: false }`
[INFO] [stdout] 88d33aa9b478637d1178154d8a0fa98bf84417680c5e9b7bed9888db9352d5e0