[INFO] cloning repository https://github.com/redox-os/ptyd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/redox-os/ptyd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredox-os%2Fptyd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredox-os%2Fptyd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ba5c4ead35a7e8458af89e565c46c275f304ef4
[INFO] checking redox-os/ptyd against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredox-os%2Fptyd" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/redox-os/ptyd
[INFO] finished tweaking git repo https://github.com/redox-os/ptyd
[INFO] tweaked toml for git repo https://github.com/redox-os/ptyd written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/redox-os/ptyd on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/redox-os/ptyd already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox-daemon v0.1.3
[INFO] [stderr]   Downloaded redox_event v0.4.1
[INFO] [stderr]   Downloaded redox-scheme v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0696486839bcbf8fb9585088376439bfc16b9ad49fde844a3944c71bf311bd76
[INFO] running `Command { std: "docker" "start" "-a" "0696486839bcbf8fb9585088376439bfc16b9ad49fde844a3944c71bf311bd76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0696486839bcbf8fb9585088376439bfc16b9ad49fde844a3944c71bf311bd76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0696486839bcbf8fb9585088376439bfc16b9ad49fde844a3944c71bf311bd76", kill_on_drop: false }`
[INFO] [stdout] 0696486839bcbf8fb9585088376439bfc16b9ad49fde844a3944c71bf311bd76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de8fe4b06f9d2bdb452ea36f280590135d2f12dda4174b69565fb73350777b48
[INFO] running `Command { std: "docker" "start" "-a" "de8fe4b06f9d2bdb452ea36f280590135d2f12dda4174b69565fb73350777b48", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]     Checking redox_termios v0.1.3
[INFO] [stderr]     Checking redox_syscall v0.5.8
[INFO] [stderr]     Checking libredox v0.1.3
[INFO] [stderr]     Checking redox-scheme v0.3.0
[INFO] [stderr]     Checking redox_event v0.4.1
[INFO] [stderr]     Checking redox-daemon v0.1.3
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/redox-daemon-0.1.3/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `redox-daemon` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "de8fe4b06f9d2bdb452ea36f280590135d2f12dda4174b69565fb73350777b48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de8fe4b06f9d2bdb452ea36f280590135d2f12dda4174b69565fb73350777b48", kill_on_drop: false }`
[INFO] [stdout] de8fe4b06f9d2bdb452ea36f280590135d2f12dda4174b69565fb73350777b48