[INFO] cloning repository https://github.com/davidbegin/messin-with-iterators
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davidbegin/messin-with-iterators" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidbegin%2Fmessin-with-iterators", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidbegin%2Fmessin-with-iterators'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 16efed4f755d660455952f1aa1b04fc3c34269d3
[INFO] testing davidbegin/messin-with-iterators against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidbegin%2Fmessin-with-iterators" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davidbegin/messin-with-iterators on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/davidbegin/messin-with-iterators
[INFO] finished tweaking git repo https://github.com/davidbegin/messin-with-iterators
[INFO] tweaked toml for git repo https://github.com/davidbegin/messin-with-iterators written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/davidbegin/messin-with-iterators already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 987ea3d427153283d196485f85be17fc4d61ade3cccc4711403e59bd6e5d2084
[INFO] running `Command { std: "docker" "start" "-a" "987ea3d427153283d196485f85be17fc4d61ade3cccc4711403e59bd6e5d2084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "987ea3d427153283d196485f85be17fc4d61ade3cccc4711403e59bd6e5d2084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "987ea3d427153283d196485f85be17fc4d61ade3cccc4711403e59bd6e5d2084", kill_on_drop: false }`
[INFO] [stdout] 987ea3d427153283d196485f85be17fc4d61ade3cccc4711403e59bd6e5d2084
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--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] 7ae6de63c87bf994aedb6b6e2d12671c5fdeeb1863d3bff587e4765bcf390499
[INFO] running `Command { std: "docker" "start" "-a" "7ae6de63c87bf994aedb6b6e2d12671c5fdeeb1863d3bff587e4765bcf390499", kill_on_drop: false }`
[INFO] [stderr]    Compiling type_printer v0.0.1
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_intrinsics': intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/type_printer-0.0.1/src/lib.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |             std::intrinsics::type_name::<T>()
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `type_printer` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "7ae6de63c87bf994aedb6b6e2d12671c5fdeeb1863d3bff587e4765bcf390499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ae6de63c87bf994aedb6b6e2d12671c5fdeeb1863d3bff587e4765bcf390499", kill_on_drop: false }`
[INFO] [stdout] 7ae6de63c87bf994aedb6b6e2d12671c5fdeeb1863d3bff587e4765bcf390499