[INFO] fetching crate hyaline-smr 0.1.1...
[INFO] testing hyaline-smr-0.1.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate hyaline-smr 0.1.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate hyaline-smr 0.1.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hyaline-smr 0.1.1
[INFO] finished tweaking crates.io crate hyaline-smr 0.1.1
[INFO] tweaked toml for crates.io crate hyaline-smr 0.1.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate hyaline-smr 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cc v1.0.71
[INFO] [stderr]   Downloaded atomicdouble v0.1.4
[INFO] [stderr]   Downloaded loom v0.5.2
[INFO] [stderr]   Downloaded generator v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 8dfe525fab7e192de996d691b2321e4fcf09430df9741066dd0128ba4ceaa76f
[INFO] running `Command { std: "docker" "start" "-a" "8dfe525fab7e192de996d691b2321e4fcf09430df9741066dd0128ba4ceaa76f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8dfe525fab7e192de996d691b2321e4fcf09430df9741066dd0128ba4ceaa76f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dfe525fab7e192de996d691b2321e4fcf09430df9741066dd0128ba4ceaa76f", kill_on_drop: false }`
[INFO] [stdout] 8dfe525fab7e192de996d691b2321e4fcf09430df9741066dd0128ba4ceaa76f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8462e7e32b9d6e206d66ca24d618c8bb294862b6913ab45d4841bc9b1a433732
[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" "8462e7e32b9d6e206d66ca24d618c8bb294862b6913ab45d4841bc9b1a433732", kill_on_drop: false }`
[INFO] [stderr]    Compiling atomicdouble v0.1.4
[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/atomicdouble-0.1.4/src/lib.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![feature(stdsimd)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/atomicdouble-0.1.4/src/lib.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | #![feature(cmpxchg16b_target_feature)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `atomicdouble` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "8462e7e32b9d6e206d66ca24d618c8bb294862b6913ab45d4841bc9b1a433732", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8462e7e32b9d6e206d66ca24d618c8bb294862b6913ab45d4841bc9b1a433732", kill_on_drop: false }`
[INFO] [stdout] 8462e7e32b9d6e206d66ca24d618c8bb294862b6913ab45d4841bc9b1a433732