[INFO] fetching crate readkey 0.2.1...
[INFO] testing readkey-0.2.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate readkey 0.2.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate readkey 0.2.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate readkey 0.2.1
[INFO] finished tweaking crates.io crate readkey 0.2.1
[INFO] tweaked toml for crates.io crate readkey 0.2.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate readkey 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cf16b99ec9e49bb773c82b58f768c6152a35cfe3e843adde379ffb5e8e198d1
[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" "7cf16b99ec9e49bb773c82b58f768c6152a35cfe3e843adde379ffb5e8e198d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cf16b99ec9e49bb773c82b58f768c6152a35cfe3e843adde379ffb5e8e198d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cf16b99ec9e49bb773c82b58f768c6152a35cfe3e843adde379ffb5e8e198d1", kill_on_drop: false }`
[INFO] [stdout] 7cf16b99ec9e49bb773c82b58f768c6152a35cfe3e843adde379ffb5e8e198d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] 9d8c91b58c58e0b3282b25a4c34f8c109844e02923302c579f36f830bff5dc9d
[INFO] running `Command { std: "docker" "start" "-a" "9d8c91b58c58e0b3282b25a4c34f8c109844e02923302c579f36f830bff5dc9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling readkey v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0455]: native frameworks are only available on macOS targets
[INFO] [stdout]    --> src/lib.rs:138:1
[INFO] [stdout]     |
[INFO] [stdout] 138 | #[link(name = "AppKit", kind = "framework")]
[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 E0455`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `readkey` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "9d8c91b58c58e0b3282b25a4c34f8c109844e02923302c579f36f830bff5dc9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d8c91b58c58e0b3282b25a4c34f8c109844e02923302c579f36f830bff5dc9d", kill_on_drop: false }`
[INFO] [stdout] 9d8c91b58c58e0b3282b25a4c34f8c109844e02923302c579f36f830bff5dc9d