[INFO] fetching crate query_param_group 0.1.1...
[INFO] checking query_param_group-0.1.1 against beta for pr-78714
[INFO] extracting crate query_param_group 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate query_param_group 0.1.1 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 crates.io crate query_param_group 0.1.1
[INFO] finished tweaking crates.io crate query_param_group 0.1.1
[INFO] tweaked toml for crates.io crate query_param_group 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cookie v0.6.2
[INFO] [stderr]   Downloaded state v0.2.2
[INFO] [stderr]   Downloaded rocket v0.2.11
[INFO] [stderr]   Downloaded yansi v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 373f26ca32fc4fabbb6c6fbc56eca38174d293b5f0d33a2776b79d29b57b4e69
[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" "373f26ca32fc4fabbb6c6fbc56eca38174d293b5f0d33a2776b79d29b57b4e69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "373f26ca32fc4fabbb6c6fbc56eca38174d293b5f0d33a2776b79d29b57b4e69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "373f26ca32fc4fabbb6c6fbc56eca38174d293b5f0d33a2776b79d29b57b4e69", kill_on_drop: false }`
[INFO] [stdout] 373f26ca32fc4fabbb6c6fbc56eca38174d293b5f0d33a2776b79d29b57b4e69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 8ab7f02963d74ed7ba3bf6221c375a9cd8f2c75740631bc004211024e9e3cadd
[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" "8ab7f02963d74ed7ba3bf6221c375a9cd8f2c75740631bc004211024e9e3cadd", kill_on_drop: false }`
[INFO] [stderr]    Compiling yansi v0.3.4
[INFO] [stderr]     Checking state v0.2.2
[INFO] [stderr]     Checking toml v0.2.1
[INFO] [stderr]     Checking term-painter v0.2.4
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking cookie v0.6.2
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/state-0.2.2/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_fn)]
[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 `state`
[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" "8ab7f02963d74ed7ba3bf6221c375a9cd8f2c75740631bc004211024e9e3cadd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ab7f02963d74ed7ba3bf6221c375a9cd8f2c75740631bc004211024e9e3cadd", kill_on_drop: false }`
[INFO] [stdout] 8ab7f02963d74ed7ba3bf6221c375a9cd8f2c75740631bc004211024e9e3cadd