[INFO] fetching crate syscall 0.2.1...
[INFO] testing syscall-0.2.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate syscall 0.2.1 into /workspace/builds/worker-105/source
[INFO] validating manifest of crates.io crate syscall 0.2.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syscall 0.2.1
[INFO] finished tweaking crates.io crate syscall 0.2.1
[INFO] tweaked toml for crates.io crate syscall 0.2.1 written to /workspace/builds/worker-105/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9bcd2641e73d7fdf764f08512f61489269dc792f3e79311c98882cd91fa3a280
[INFO] running `Command { std: "docker" "start" "-a" "9bcd2641e73d7fdf764f08512f61489269dc792f3e79311c98882cd91fa3a280", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9bcd2641e73d7fdf764f08512f61489269dc792f3e79311c98882cd91fa3a280", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bcd2641e73d7fdf764f08512f61489269dc792f3e79311c98882cd91fa3a280", kill_on_drop: false }`
[INFO] [stdout] 9bcd2641e73d7fdf764f08512f61489269dc792f3e79311c98882cd91fa3a280
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76e7e0f18a80e2a19a41b182f2294aa1fd495962b450220b770179972b04c9d4
[INFO] running `Command { std: "docker" "start" "-a" "76e7e0f18a80e2a19a41b182f2294aa1fd495962b450220b770179972b04c9d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syscall v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]   --> src/platform/linux-x86_64/mod.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |       asm!("syscall" : "={rax}"(ret)
[INFO] [stdout]    |       ^---
[INFO] [stdout]    |       |
[INFO] [stdout]    |  _____help: replace with: `llvm_asm!`
[INFO] [stdout]    | |
[INFO] [stdout] 18 | |                    : "{rax}"(n)
[INFO] [stdout] 19 | |                    : "rcx", "r11", "memory"
[INFO] [stdout] 20 | |                    : "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]   --> src/platform/linux-x86_64/mod.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |       asm!("syscall" : "={rax}"(ret)
[INFO] [stdout]    |       ^---
[INFO] [stdout]    |       |
[INFO] [stdout]    |  _____help: replace with: `llvm_asm!`
[INFO] [stdout]    | |
[INFO] [stdout] 28 | |                    : "{rax}"(n), "{rdi}"(a1)
[INFO] [stdout] 29 | |                    : "rcx", "r11", "memory"
[INFO] [stdout] 30 | |                    : "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]   --> src/platform/linux-x86_64/mod.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |       asm!("syscall" : "={rax}"(ret)
[INFO] [stdout]    |       ^---
[INFO] [stdout]    |       |
[INFO] [stdout]    |  _____help: replace with: `llvm_asm!`
[INFO] [stdout]    | |
[INFO] [stdout] 38 | |                    : "{rax}"(n), "{rdi}"(a1), "{rsi}"(a2)
[INFO] [stdout] 39 | |                    : "rcx", "r11", "memory"
[INFO] [stdout] 40 | |                    : "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]   --> src/platform/linux-x86_64/mod.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |       asm!("syscall" : "={rax}"(ret)
[INFO] [stdout]    |       ^---
[INFO] [stdout]    |       |
[INFO] [stdout]    |  _____help: replace with: `llvm_asm!`
[INFO] [stdout]    | |
[INFO] [stdout] 48 | |                    : "{rax}"(n), "{rdi}"(a1), "{rsi}"(a2), "{rdx}"(a3)
[INFO] [stdout] 49 | |                    : "rcx", "r11", "memory"
[INFO] [stdout] 50 | |                    : "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]   --> src/platform/linux-x86_64/mod.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |       asm!("syscall" : "={rax}"(ret)
[INFO] [stdout]    |       ^---
[INFO] [stdout]    |       |
[INFO] [stdout]    |  _____help: replace with: `llvm_asm!`
[INFO] [stdout]    | |
[INFO] [stdout] 59 | |                    : "{rax}"(n), "{rdi}"(a1), "{rsi}"(a2), "{rdx}"(a3),
[INFO] [stdout] 60 | |                      "{r10}"(a4)
[INFO] [stdout] 61 | |                    : "rcx", "r11", "memory"
[INFO] [stdout] 62 | |                    : "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]   --> src/platform/linux-x86_64/mod.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |       asm!("syscall" : "={rax}"(ret)
[INFO] [stdout]    |       ^---
[INFO] [stdout]    |       |
[INFO] [stdout]    |  _____help: replace with: `llvm_asm!`
[INFO] [stdout]    | |
[INFO] [stdout] 71 | |                    : "{rax}"(n), "{rdi}"(a1), "{rsi}"(a2), "{rdx}"(a3),
[INFO] [stdout] 72 | |                      "{r10}"(a4), "{r8}"(a5)
[INFO] [stdout] 73 | |                    : "rcx", "r11", "memory"
[INFO] [stdout] 74 | |                    : "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]   --> src/platform/linux-x86_64/mod.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |       asm!("syscall" : "={rax}"(ret)
[INFO] [stdout]    |       ^---
[INFO] [stdout]    |       |
[INFO] [stdout]    |  _____help: replace with: `llvm_asm!`
[INFO] [stdout]    | |
[INFO] [stdout] 83 | |                    : "{rax}"(n), "{rdi}"(a1), "{rsi}"(a2), "{rdx}"(a3),
[INFO] [stdout] 84 | |                      "{r10}"(a4), "{r8}"(a5), "{r9}"(a6)
[INFO] [stdout] 85 | |                    : "rcx", "r11", "memory"
[INFO] [stdout] 86 | |                    : "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 stable release channel
[INFO] [stdout]   --> src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![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 `syscall`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "76e7e0f18a80e2a19a41b182f2294aa1fd495962b450220b770179972b04c9d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76e7e0f18a80e2a19a41b182f2294aa1fd495962b450220b770179972b04c9d4", kill_on_drop: false }`
[INFO] [stdout] 76e7e0f18a80e2a19a41b182f2294aa1fd495962b450220b770179972b04c9d4
