[INFO] fetching crate uring 0.1.0...
[INFO] checking uring-0.1.0 against beta for pr-78714
[INFO] extracting crate uring 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate uring 0.1.0 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 crates.io crate uring 0.1.0
[INFO] finished tweaking crates.io crate uring 0.1.0
[INFO] tweaked toml for crates.io crate uring 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] f482e59b71f38687b9f3ba323930c9f1ddb3e5ae9b46ee5f4b28a9e0fc6c024c
[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" "f482e59b71f38687b9f3ba323930c9f1ddb3e5ae9b46ee5f4b28a9e0fc6c024c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f482e59b71f38687b9f3ba323930c9f1ddb3e5ae9b46ee5f4b28a9e0fc6c024c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f482e59b71f38687b9f3ba323930c9f1ddb3e5ae9b46ee5f4b28a9e0fc6c024c", kill_on_drop: false }`
[INFO] [stdout] f482e59b71f38687b9f3ba323930c9f1ddb3e5ae9b46ee5f4b28a9e0fc6c024c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] b355b32d689c8c99223834db0d8eea56c847a0e716a5065198a290fc361d7290
[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" "b355b32d689c8c99223834db0d8eea56c847a0e716a5065198a290fc361d7290", kill_on_drop: false }`
[INFO] [stderr]     Checking sys-call v0.1.1
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sys-call-0.1.1/src/platform/linux-x86_64.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |       asm!("syscall"
[INFO] [stdout]   |       ^---
[INFO] [stdout]   |       |
[INFO] [stdout]   |  _____help: replace with: `llvm_asm!`
[INFO] [stdout]   | |
[INFO] [stdout] 4 | |          : "+{rax}"(num)
[INFO] [stdout] 5 | |          :
[INFO] [stdout] 6 | |          : "rcx", "r11", "memory"
[INFO] [stdout] 7 | |          : "volatile");
[INFO] [stdout]   | |_______________________^
[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: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sys-call-0.1.1/src/platform/linux-x86_64.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |       asm!("syscall"
[INFO] [stdout]    |       ^---
[INFO] [stdout]    |       |
[INFO] [stdout]    |  _____help: replace with: `llvm_asm!`
[INFO] [stdout]    | |
[INFO] [stdout] 14 | |          : "+{rax}"(num)
[INFO] [stdout] 15 | |          : "{rdi}"(arg1)
[INFO] [stdout] 16 | |          : "rcx", "r11", "memory"
[INFO] [stdout] 17 | |          : "volatile");
[INFO] [stdout]    | |_______________________^
[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: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sys-call-0.1.1/src/platform/linux-x86_64.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |       asm!("syscall"
[INFO] [stdout]    |       ^---
[INFO] [stdout]    |       |
[INFO] [stdout]    |  _____help: replace with: `llvm_asm!`
[INFO] [stdout]    | |
[INFO] [stdout] 24 | |          : "+{rax}"(num)
[INFO] [stdout] 25 | |          : "{rdi}"(arg1) "{rsi}"(arg2)
[INFO] [stdout] 26 | |          : "rcx", "r11", "memory"
[INFO] [stdout] 27 | |          : "volatile");
[INFO] [stdout]    | |_______________________^
[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: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sys-call-0.1.1/src/platform/linux-x86_64.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |       asm!("syscall"
[INFO] [stdout]    |       ^---
[INFO] [stdout]    |       |
[INFO] [stdout]    |  _____help: replace with: `llvm_asm!`
[INFO] [stdout]    | |
[INFO] [stdout] 34 | |          : "+{rax}"(num)
[INFO] [stdout] 35 | |          : "{rdi}"(arg1) "{rsi}"(arg2) "{rdx}"(arg3)
[INFO] [stdout] 36 | |          : "rcx", "r11", "memory"
[INFO] [stdout] 37 | |          : "volatile");
[INFO] [stdout]    | |_______________________^
[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: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sys-call-0.1.1/src/platform/linux-x86_64.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |       asm!("syscall"
[INFO] [stdout]    |       ^---
[INFO] [stdout]    |       |
[INFO] [stdout]    |  _____help: replace with: `llvm_asm!`
[INFO] [stdout]    | |
[INFO] [stdout] 50 | |          : "+{rax}"(num)
[INFO] [stdout] 51 | |          : "{rdi}"(arg1) "{rsi}"(arg2) "{rdx}"(arg3) "{r10}"(arg4)
[INFO] [stdout] 52 | |          : "rcx", "r11", "memory"
[INFO] [stdout] 53 | |          : "volatile");
[INFO] [stdout]    | |_______________________^
[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: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sys-call-0.1.1/src/platform/linux-x86_64.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |       asm!("syscall"
[INFO] [stdout]    |       ^---
[INFO] [stdout]    |       |
[INFO] [stdout]    |  _____help: replace with: `llvm_asm!`
[INFO] [stdout]    | |
[INFO] [stdout] 67 | |          : "+{rax}"(num)
[INFO] [stdout] 68 | |          : "{rdi}"(arg1) "{rsi}"(arg2) "{rdx}"(arg3) "{r10}"(arg4) "{r8}"(arg5)
[INFO] [stdout] 69 | |          : "rcx", "r11", "memory"
[INFO] [stdout] 70 | |          : "volatile");
[INFO] [stdout]    | |_______________________^
[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: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sys-call-0.1.1/src/platform/linux-x86_64.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 |       asm!("syscall"
[INFO] [stdout]    |       ^---
[INFO] [stdout]    |       |
[INFO] [stdout]    |  _____help: replace with: `llvm_asm!`
[INFO] [stdout]    | |
[INFO] [stdout] 85 | |          : "+{rax}"(num)
[INFO] [stdout] 86 | |          : "{rdi}"(arg1) "{rsi}"(arg2) "{rdx}"(arg3) "{r10}"(arg4) "{r8}"(arg5) "{r9}"(arg6)
[INFO] [stdout] 87 | |          : "rcx", "r11", "memory"
[INFO] [stdout] 88 | |          : "volatile");
[INFO] [stdout]    | |_______________________^
[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 beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sys-call-0.1.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 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 `sys-call`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "b355b32d689c8c99223834db0d8eea56c847a0e716a5065198a290fc361d7290", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b355b32d689c8c99223834db0d8eea56c847a0e716a5065198a290fc361d7290", kill_on_drop: false }`
[INFO] [stdout] b355b32d689c8c99223834db0d8eea56c847a0e716a5065198a290fc361d7290