[INFO] fetching crate nullable 0.0.1...
[INFO] testing nullable-0.0.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate nullable 0.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate nullable 0.0.1 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 crates.io crate nullable 0.0.1
[INFO] finished tweaking crates.io crate nullable 0.0.1
[INFO] tweaked toml for crates.io crate nullable 0.0.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--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" "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] c7d32c300d132f2b82c74bb8319d1700bd42ebca479a438859c50fbce291a81f
[INFO] running `Command { std: "docker" "start" "-a" "c7d32c300d132f2b82c74bb8319d1700bd42ebca479a438859c50fbce291a81f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7d32c300d132f2b82c74bb8319d1700bd42ebca479a438859c50fbce291a81f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7d32c300d132f2b82c74bb8319d1700bd42ebca479a438859c50fbce291a81f", kill_on_drop: false }`
[INFO] [stdout] c7d32c300d132f2b82c74bb8319d1700bd42ebca479a438859c50fbce291a81f
[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=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] 767b0fa03d3f4546a2ff0c14b1820c43cc20d9e0c2807a93211a6b7b1b32a866
[INFO] running `Command { std: "docker" "start" "-a" "767b0fa03d3f4546a2ff0c14b1820c43cc20d9e0c2807a93211a6b7b1b32a866", kill_on_drop: false }`
[INFO] [stderr]    Compiling nullable v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::kinds`
[INFO] [stdout]  --> src/lib.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::kinds::marker;
[INFO] [stdout]   |          ^^^^^ could not find `kinds` in `std`
[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 E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nullable` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "767b0fa03d3f4546a2ff0c14b1820c43cc20d9e0c2807a93211a6b7b1b32a866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "767b0fa03d3f4546a2ff0c14b1820c43cc20d9e0c2807a93211a6b7b1b32a866", kill_on_drop: false }`
[INFO] [stdout] 767b0fa03d3f4546a2ff0c14b1820c43cc20d9e0c2807a93211a6b7b1b32a866