[INFO] cloning repository https://github.com/AdamLatos/rust-os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AdamLatos/rust-os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdamLatos%2Frust-os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdamLatos%2Frust-os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c599cd9bfc43de2f80f6b15bf4ebe195ccb3536e
[INFO] checking AdamLatos/rust-os against master#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdamLatos%2Frust-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/AdamLatos/rust-os on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AdamLatos/rust-os
[INFO] finished tweaking git repo https://github.com/AdamLatos/rust-os
[INFO] tweaked toml for git repo https://github.com/AdamLatos/rust-os written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/AdamLatos/rust-os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 338a5fcae813978d683cc58fdeacfe9b0c20a7a9c2140fed42b245af3d064905
[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" "338a5fcae813978d683cc58fdeacfe9b0c20a7a9c2140fed42b245af3d064905", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "338a5fcae813978d683cc58fdeacfe9b0c20a7a9c2140fed42b245af3d064905", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "338a5fcae813978d683cc58fdeacfe9b0c20a7a9c2140fed42b245af3d064905", kill_on_drop: false }`
[INFO] [stdout] 338a5fcae813978d683cc58fdeacfe9b0c20a7a9c2140fed42b245af3d064905
[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=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" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] f824f248a7c0cbacfbed5d9fd78fd6a90fa91b570cb21e3be4fa72a915bb1735
[INFO] running `Command { std: "docker" "start" "-a" "f824f248a7c0cbacfbed5d9fd78fd6a90fa91b570cb21e3be4fa72a915bb1735", kill_on_drop: false }`
[INFO] [stderr] error: "/opt/rustwide/rustup-home/toolchains/c919f490bbcd2b29b74016101f7ec71aaa24bdbb/lib/rustlib/src/rust/Cargo.lock" does not exist, unable to build with the standard library, try:
[INFO] [stderr]         rustup component add rust-src
[INFO] running `Command { std: "docker" "inspect" "f824f248a7c0cbacfbed5d9fd78fd6a90fa91b570cb21e3be4fa72a915bb1735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f824f248a7c0cbacfbed5d9fd78fd6a90fa91b570cb21e3be4fa72a915bb1735", kill_on_drop: false }`
[INFO] [stdout] f824f248a7c0cbacfbed5d9fd78fd6a90fa91b570cb21e3be4fa72a915bb1735