[INFO] cloning repository https://github.com/rojer-98/test-os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rojer-98/test-os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frojer-98%2Ftest-os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frojer-98%2Ftest-os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4b9e36c34e5a0933fb950d246277cdb8e83c89f
[INFO] testing rojer-98/test-os against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frojer-98%2Ftest-os" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rojer-98/test-os on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rojer-98/test-os
[INFO] finished tweaking git repo https://github.com/rojer-98/test-os
[INFO] tweaked toml for git repo https://github.com/rojer-98/test-os written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/rojer-98/test-os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] a8b63e20ddaf8a29844cf4440fdd27633effbb4bd329e60efba757a800d4837c
[INFO] running `Command { std: "docker" "start" "-a" "a8b63e20ddaf8a29844cf4440fdd27633effbb4bd329e60efba757a800d4837c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8b63e20ddaf8a29844cf4440fdd27633effbb4bd329e60efba757a800d4837c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8b63e20ddaf8a29844cf4440fdd27633effbb4bd329e60efba757a800d4837c", kill_on_drop: false }`
[INFO] [stdout] a8b63e20ddaf8a29844cf4440fdd27633effbb4bd329e60efba757a800d4837c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36b5a7e0a9ff2e59d2a15ceecbf396ddebd9ace70486c846e1516b777084191a
[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" "36b5a7e0a9ff2e59d2a15ceecbf396ddebd9ace70486c846e1516b777084191a", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.9.8
[INFO] [stderr]    Compiling rlibc v1.0.0
[INFO] [stdout] error[E0463]: can't find crate for `core`
[INFO] [stdout]   |
[INFO] [stdout]   = note: the `target-11038942252825549159` target may not be installed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rlibc`
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "36b5a7e0a9ff2e59d2a15ceecbf396ddebd9ace70486c846e1516b777084191a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36b5a7e0a9ff2e59d2a15ceecbf396ddebd9ace70486c846e1516b777084191a", kill_on_drop: false }`
[INFO] [stdout] 36b5a7e0a9ff2e59d2a15ceecbf396ddebd9ace70486c846e1516b777084191a