[INFO] cloning repository https://github.com/SomethingGeneric/rustos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SomethingGeneric/rustos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSomethingGeneric%2Frustos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSomethingGeneric%2Frustos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7925c6f697d2ec95141f9e30c7be2f96bcbadfa2
[INFO] checking SomethingGeneric/rustos against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSomethingGeneric%2Frustos" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SomethingGeneric/rustos on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SomethingGeneric/rustos
[INFO] finished tweaking git repo https://github.com/SomethingGeneric/rustos
[INFO] tweaked toml for git repo https://github.com/SomethingGeneric/rustos written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/SomethingGeneric/rustos already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded volatile v0.2.7
[INFO] [stderr]   Downloaded bootloader v0.9.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 290b07b33e239bf7ee9280d7358a5f520e1a306f30c095685b84733692d2ed09
[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" "290b07b33e239bf7ee9280d7358a5f520e1a306f30c095685b84733692d2ed09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "290b07b33e239bf7ee9280d7358a5f520e1a306f30c095685b84733692d2ed09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "290b07b33e239bf7ee9280d7358a5f520e1a306f30c095685b84733692d2ed09", kill_on_drop: false }`
[INFO] [stdout] 290b07b33e239bf7ee9280d7358a5f520e1a306f30c095685b84733692d2ed09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f078cf510f38f28aac0d1a5f1bfbf41cd58f0aeecb2b55477ba0760a76a01fe2
[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" "f078cf510f38f28aac0d1a5f1bfbf41cd58f0aeecb2b55477ba0760a76a01fe2", kill_on_drop: false }`
[INFO] [stderr] error: "/opt/rustwide/rustup-home/toolchains/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/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" "f078cf510f38f28aac0d1a5f1bfbf41cd58f0aeecb2b55477ba0760a76a01fe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f078cf510f38f28aac0d1a5f1bfbf41cd58f0aeecb2b55477ba0760a76a01fe2", kill_on_drop: false }`
[INFO] [stdout] f078cf510f38f28aac0d1a5f1bfbf41cd58f0aeecb2b55477ba0760a76a01fe2