[INFO] cloning repository https://github.com/ayrat555/el_monitorro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ayrat555/el_monitorro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayrat555%2Fel_monitorro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayrat555%2Fel_monitorro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 03889999d8b36da8764241b52fbc233196d8d431
[INFO] checking ayrat555/el_monitorro against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayrat555%2Fel_monitorro" "/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/ayrat555/el_monitorro 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/ayrat555/el_monitorro
[INFO] finished tweaking git repo https://github.com/ayrat555/el_monitorro
[INFO] tweaked toml for git repo https://github.com/ayrat555/el_monitorro written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/ayrat555/el_monitorro 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] 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] 1b6ab2ad5072490cb07bc657747ce2ce29b98bc2fc380d8f0232ec7269811534
[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" "1b6ab2ad5072490cb07bc657747ce2ce29b98bc2fc380d8f0232ec7269811534", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b6ab2ad5072490cb07bc657747ce2ce29b98bc2fc380d8f0232ec7269811534", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b6ab2ad5072490cb07bc657747ce2ce29b98bc2fc380d8f0232ec7269811534", kill_on_drop: false }`
[INFO] [stdout] 1b6ab2ad5072490cb07bc657747ce2ce29b98bc2fc380d8f0232ec7269811534
[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] [stdout] c6e0ab703e8ccb7aeb159b3f5ed45d6f1624f1886b2c57911cb1e6f1940e115d
[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" "c6e0ab703e8ccb7aeb159b3f5ed45d6f1624f1886b2c57911cb1e6f1940e115d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling cc v1.0.55
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]    Compiling curl v0.4.30
[INFO] [stderr]     Checking adler32 v1.1.0
[INFO] [stderr]    Compiling isahc v0.9.5
[INFO] [stderr]     Checking xml-rs v0.8.3
[INFO] [stderr]     Checking quick-error v2.0.0
[INFO] [stderr]     Checking htmlescape v0.3.1
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking addr2line v0.12.2
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking pq-sys v0.4.6
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking quick-xml v0.18.1
[INFO] [stderr]     Checking quick-xml v0.17.2
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking rand v0.7.3
[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/regex-1.3.9/src/lib.rs:618:34
[INFO] [stdout]     |
[INFO] [stdout] 618 | #![cfg_attr(feature = "pattern", feature(pattern))]
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking backtrace v0.3.49
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.4+1.41.0
[INFO] [stderr]    Compiling curl-sys v0.4.32+curl-7.70.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[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 `regex`
[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" "c6e0ab703e8ccb7aeb159b3f5ed45d6f1624f1886b2c57911cb1e6f1940e115d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6e0ab703e8ccb7aeb159b3f5ed45d6f1624f1886b2c57911cb1e6f1940e115d", kill_on_drop: false }`
[INFO] [stdout] c6e0ab703e8ccb7aeb159b3f5ed45d6f1624f1886b2c57911cb1e6f1940e115d