[INFO] cloning repository https://github.com/lcdr/base_server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lcdr/base_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flcdr%2Fbase_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flcdr%2Fbase_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 14332d2d18609077cc07f0b52042344182703660
[INFO] checking lcdr/base_server against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flcdr%2Fbase_server" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lcdr/base_server 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/lcdr/base_server
[INFO] finished tweaking git repo https://github.com/lcdr/base_server
[INFO] tweaked toml for git repo https://github.com/lcdr/base_server written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/lcdr/base_server 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded webpki-roots v0.18.0
[INFO] [stderr]   Downloaded rustls v0.16.0
[INFO] [stderr]   Downloaded crc32fast v1.2.1
[INFO] [stderr]   Downloaded sct v0.6.0
[INFO] [stderr]   Downloaded syn v1.0.27
[INFO] [stderr]   Downloaded flate2 v1.0.19
[INFO] [stderr]   Downloaded untrusted v0.7.1
[INFO] [stderr]   Downloaded webpki v0.21.2
[INFO] [stderr]   Downloaded ring v0.16.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] dd6adc427d8db1ff73b9953f6c6f4b0b8cbfb1e181a2b0bd6b5a44a1b34f243c
[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" "dd6adc427d8db1ff73b9953f6c6f4b0b8cbfb1e181a2b0bd6b5a44a1b34f243c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd6adc427d8db1ff73b9953f6c6f4b0b8cbfb1e181a2b0bd6b5a44a1b34f243c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd6adc427d8db1ff73b9953f6c6f4b0b8cbfb1e181a2b0bd6b5a44a1b34f243c", kill_on_drop: false }`
[INFO] [stdout] dd6adc427d8db1ff73b9953f6c6f4b0b8cbfb1e181a2b0bd6b5a44a1b34f243c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] f589034773381052dd6383168ad4414c9d1ae1d61a24c424d00167c4eec8fba7
[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" "f589034773381052dd6383168ad4414c9d1ae1d61a24c424d00167c4eec8fba7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.27
[INFO] [stderr]     Checking endio_bit v0.1.0 (https://github.com/lcdr/endio_bit?rev=46b1b0eda359dd85b5eabf9714e839c3728c75af#46b1b0ed)
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]     Checking ring v0.16.13
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking webpki v0.21.2
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking webpki-roots v0.18.0
[INFO] [stderr]    Compiling endio_derive v0.2.0 (https://github.com/lcdr/endio?rev=9981948f5cb6d78dba3c5115d1f3459918a64133#9981948f)
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling lu_packets_derive v0.1.0 (https://github.com/lcdr/lu_packets?rev=f11fdd7d50109602f7abdeacf78452376b9adbde#f11fdd7d)
[INFO] [stderr]     Checking endio v0.2.0 (https://github.com/lcdr/endio?rev=9981948f5cb6d78dba3c5115d1f3459918a64133#9981948f)
[INFO] [stderr]     Checking lu_packets v0.1.0 (https://github.com/lcdr/lu_packets?rev=f11fdd7d50109602f7abdeacf78452376b9adbde#f11fdd7d)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/lu_packets-a45db4b40825b0eb/f11fdd7/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(arbitrary_enum_discriminant)]
[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 `lu_packets`
[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" "f589034773381052dd6383168ad4414c9d1ae1d61a24c424d00167c4eec8fba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f589034773381052dd6383168ad4414c9d1ae1d61a24c424d00167c4eec8fba7", kill_on_drop: false }`
[INFO] [stdout] f589034773381052dd6383168ad4414c9d1ae1d61a24c424d00167c4eec8fba7