[INFO] fetching crate rados_hi 0.2.4...
[INFO] testing rados_hi-0.2.4 against 1.49.0 for beta-1.50-1
[INFO] extracting crate rados_hi 0.2.4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rados_hi 0.2.4 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rados_hi 0.2.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rados_hi 0.2.4
[INFO] tweaked toml for crates.io crate rados_hi 0.2.4 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51db3d5e6f7a1633676a2ef5ef33e45aff7d00b6b29a1e8fa0f0ab1fc55a84c1
[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" "51db3d5e6f7a1633676a2ef5ef33e45aff7d00b6b29a1e8fa0f0ab1fc55a84c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51db3d5e6f7a1633676a2ef5ef33e45aff7d00b6b29a1e8fa0f0ab1fc55a84c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51db3d5e6f7a1633676a2ef5ef33e45aff7d00b6b29a1e8fa0f0ab1fc55a84c1", kill_on_drop: false }`
[INFO] [stdout] 51db3d5e6f7a1633676a2ef5ef33e45aff7d00b6b29a1e8fa0f0ab1fc55a84c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", 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] 3f50d4ac37f6e0c64fab6b316635b277b70997446ead8965b66aaef2a7edd0a9
[INFO] running `Command { std: "docker" "start" "-a" "3f50d4ac37f6e0c64fab6b316635b277b70997446ead8965b66aaef2a7edd0a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling uuid v0.3.1
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling term_size v0.3.2
[INFO] [stderr]    Compiling ceph-rust v0.1.17
[INFO] [stderr]    Compiling gstuff v0.4.7
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gstuff-0.4.7/gstuff.rs:454:5
[INFO] [stdout]     |
[INFO] [stdout] 454 |     asm!("rdtsc" : "={eax}" (low), "={edx}" (high) ::: "volatile");
[INFO] [stdout]     |     ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     help: replace with: `llvm_asm!`
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider migrating to the new asm! syntax specified in RFC 2873
[INFO] [stdout]     = note: alternatively, switch to llvm_asm! to keep your code working as it is
[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/gstuff-0.4.7/gstuff.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(asm)]
[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 `gstuff`
[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" "3f50d4ac37f6e0c64fab6b316635b277b70997446ead8965b66aaef2a7edd0a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f50d4ac37f6e0c64fab6b316635b277b70997446ead8965b66aaef2a7edd0a9", kill_on_drop: false }`
[INFO] [stdout] 3f50d4ac37f6e0c64fab6b316635b277b70997446ead8965b66aaef2a7edd0a9