[INFO] fetching crate dyn-lock 0.1.0...
[INFO] testing dyn-lock-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate dyn-lock 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate dyn-lock 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2/source/rust-toolchain
[INFO] started tweaking crates.io crate dyn-lock 0.1.0
[INFO] finished tweaking crates.io crate dyn-lock 0.1.0
[INFO] tweaked toml for crates.io crate dyn-lock 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", 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] 7bca6f0b9518f58ceca7e7d3827454a2b86022f4ac5a61f753f2d84c2946a824
[INFO] running `Command { std: "docker" "start" "-a" "7bca6f0b9518f58ceca7e7d3827454a2b86022f4ac5a61f753f2d84c2946a824", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bca6f0b9518f58ceca7e7d3827454a2b86022f4ac5a61f753f2d84c2946a824", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bca6f0b9518f58ceca7e7d3827454a2b86022f4ac5a61f753f2d84c2946a824", kill_on_drop: false }`
[INFO] [stdout] 7bca6f0b9518f58ceca7e7d3827454a2b86022f4ac5a61f753f2d84c2946a824
[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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4278f209bba951c868b1ebed61dde4bc25ccfd53cad83d039ed97aed70714cc
[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" "c4278f209bba951c868b1ebed61dde4bc25ccfd53cad83d039ed97aed70714cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling dyn-lock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling buddy-alloc v0.4.1
[INFO] [stderr]    Compiling molecule v0.6.1
[INFO] [stderr]    Compiling ckb-std v0.7.4
[INFO] [stderr]    Compiling ckb-standalone-types v0.0.1-pre.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ckb-std-0.7.4/src/lib.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(llvm_asm)]
[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 `ckb-std` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c4278f209bba951c868b1ebed61dde4bc25ccfd53cad83d039ed97aed70714cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4278f209bba951c868b1ebed61dde4bc25ccfd53cad83d039ed97aed70714cc", kill_on_drop: false }`
[INFO] [stdout] c4278f209bba951c868b1ebed61dde4bc25ccfd53cad83d039ed97aed70714cc