[INFO] cloning repository https://github.com/deinferno/iwled-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/deinferno/iwled-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeinferno%2Fiwled-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeinferno%2Fiwled-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 697c7578b2048d5451b296387b9b7144c24384fa
[INFO] checking deinferno/iwled-rs against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeinferno%2Fiwled-rs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/deinferno/iwled-rs 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/deinferno/iwled-rs
[INFO] finished tweaking git repo https://github.com/deinferno/iwled-rs
[INFO] tweaked toml for git repo https://github.com/deinferno/iwled-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/deinferno/iwled-rs 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 8db4032be591f95e87f2ad187a02b0fcffa1969c19204e8c0a49763b2aa7914c
[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" "8db4032be591f95e87f2ad187a02b0fcffa1969c19204e8c0a49763b2aa7914c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8db4032be591f95e87f2ad187a02b0fcffa1969c19204e8c0a49763b2aa7914c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8db4032be591f95e87f2ad187a02b0fcffa1969c19204e8c0a49763b2aa7914c", kill_on_drop: false }`
[INFO] [stdout] 8db4032be591f95e87f2ad187a02b0fcffa1969c19204e8c0a49763b2aa7914c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 90e213c03b7cb528aa7334bddaddfb6c9ea687847ca1508fb17e69870ae334c5
[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" "90e213c03b7cb528aa7334bddaddfb6c9ea687847ca1508fb17e69870ae334c5", kill_on_drop: false }`
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking buffering v0.4.2
[INFO] [stderr]     Checking numtoa v0.2.3
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]     Checking dlv-list v0.2.2
[INFO] [stderr]     Checking neli v0.4.4
[INFO] [stderr]     Checking sysfs-class v0.1.3
[INFO] [stderr]     Checking ordered-multimap v0.2.4
[INFO] [stderr]     Checking rust-ini v0.15.3
[INFO] [stderr]     Checking nl80211 v0.0.2 (https://github.com/deinferno/nl80211.git?branch=master#c4caba12)
[INFO] [stderr]     Checking iwled-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(clamp)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(clamp)]
[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 `iwled-rs`
[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] [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: build failed
[INFO] running `Command { std: "docker" "inspect" "90e213c03b7cb528aa7334bddaddfb6c9ea687847ca1508fb17e69870ae334c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90e213c03b7cb528aa7334bddaddfb6c9ea687847ca1508fb17e69870ae334c5", kill_on_drop: false }`
[INFO] [stdout] 90e213c03b7cb528aa7334bddaddfb6c9ea687847ca1508fb17e69870ae334c5