[INFO] cloning repository https://github.com/pypypypypypypypypyp/space_client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pypypypypypypypypyp/space_client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpypypypypypypypypyp%2Fspace_client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpypypypypypypypypyp%2Fspace_client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 67224b0085bcaccb428923bc4bb436081bb4a605
[INFO] checking pypypypypypypypypyp/space_client against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpypypypypypypypypyp%2Fspace_client" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pypypypypypypypypyp/space_client on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pypypypypypypypypyp/space_client
[INFO] finished tweaking git repo https://github.com/pypypypypypypypypyp/space_client
[INFO] tweaked toml for git repo https://github.com/pypypypypypypypypyp/space_client written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/pypypypypypypypypyp/space_client already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c78bbdfca1d6422329b381ecc47965b5a1647e8a1d341aba6ce08c9d2b64631
[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" "4c78bbdfca1d6422329b381ecc47965b5a1647e8a1d341aba6ce08c9d2b64631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c78bbdfca1d6422329b381ecc47965b5a1647e8a1d341aba6ce08c9d2b64631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c78bbdfca1d6422329b381ecc47965b5a1647e8a1d341aba6ce08c9d2b64631", kill_on_drop: false }`
[INFO] [stdout] 4c78bbdfca1d6422329b381ecc47965b5a1647e8a1d341aba6ce08c9d2b64631
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--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] 871cc6dc8b41288438c3b0dca3b09c678b5d88cf239f781d5464caa399c50d26
[INFO] running `Command { std: "docker" "start" "-a" "871cc6dc8b41288438c3b0dca3b09c678b5d88cf239f781d5464caa399c50d26", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.64
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking array_tuple v0.1.0 (https://github.com/pypypypypypypypypyp/array_tuple#a75ae591)
[INFO] [stderr]     Checking limiter v0.1.0 (https://github.com/pypypypypypypypypyp/limiter#f812738f)
[INFO] [stderr]     Checking terminal v0.1.0 (https://github.com/pypypypypypypypypyp/terminal#19316794)
[INFO] [stderr]    Compiling bincode v1.2.0
[INFO] [stderr]    Compiling openssl-sys v0.9.51
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/array_tuple-50bd20982362b952/a75ae59/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(nll)]
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `array_tuple`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "871cc6dc8b41288438c3b0dca3b09c678b5d88cf239f781d5464caa399c50d26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "871cc6dc8b41288438c3b0dca3b09c678b5d88cf239f781d5464caa399c50d26", kill_on_drop: false }`
[INFO] [stdout] 871cc6dc8b41288438c3b0dca3b09c678b5d88cf239f781d5464caa399c50d26