[INFO] crate syscall 0.2.1 is already in cache
[INFO] testing syscall-0.2.1 against 1.44.0 for beta-1.45-1
[INFO] extracting crate syscall 0.2.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate syscall 0.2.1 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-11/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1e174e27428103dd5abe9b071bc5377b3fd74a1717fb54efe2ab54aeb79368c0
[INFO] running `"docker" "start" "-a" "1e174e27428103dd5abe9b071bc5377b3fd74a1717fb54efe2ab54aeb79368c0"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syscall v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | #![feature(asm)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'asm': the syntax of asm! will change soon, use llvm_asm! to avoid breakage
[INFO] [stderr]   --> src/platform/linux-x86_64/mod.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     asm!("syscall" : "={rax}"(ret)
[INFO] [stderr]    |     ^^^ help: replace the use of the deprecated item: `llvm_asm`
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 | #![deny(warnings)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'asm': the syntax of asm! will change soon, use llvm_asm! to avoid breakage
[INFO] [stderr]   --> src/platform/linux-x86_64/mod.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     asm!("syscall" : "={rax}"(ret)
[INFO] [stderr]    |     ^^^ help: replace the use of the deprecated item: `llvm_asm`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'asm': the syntax of asm! will change soon, use llvm_asm! to avoid breakage
[INFO] [stderr]   --> src/platform/linux-x86_64/mod.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     asm!("syscall" : "={rax}"(ret)
[INFO] [stderr]    |     ^^^ help: replace the use of the deprecated item: `llvm_asm`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'asm': the syntax of asm! will change soon, use llvm_asm! to avoid breakage
[INFO] [stderr]   --> src/platform/linux-x86_64/mod.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     asm!("syscall" : "={rax}"(ret)
[INFO] [stderr]    |     ^^^ help: replace the use of the deprecated item: `llvm_asm`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'asm': the syntax of asm! will change soon, use llvm_asm! to avoid breakage
[INFO] [stderr]   --> src/platform/linux-x86_64/mod.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     asm!("syscall" : "={rax}"(ret)
[INFO] [stderr]    |     ^^^ help: replace the use of the deprecated item: `llvm_asm`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'asm': the syntax of asm! will change soon, use llvm_asm! to avoid breakage
[INFO] [stderr]   --> src/platform/linux-x86_64/mod.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     asm!("syscall" : "={rax}"(ret)
[INFO] [stderr]    |     ^^^ help: replace the use of the deprecated item: `llvm_asm`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'asm': the syntax of asm! will change soon, use llvm_asm! to avoid breakage
[INFO] [stderr]   --> src/platform/linux-x86_64/mod.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     asm!("syscall" : "={rax}"(ret)
[INFO] [stderr]    |     ^^^ help: replace the use of the deprecated item: `llvm_asm`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `syscall`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1e174e27428103dd5abe9b071bc5377b3fd74a1717fb54efe2ab54aeb79368c0"`
[INFO] running `"docker" "rm" "-f" "1e174e27428103dd5abe9b071bc5377b3fd74a1717fb54efe2ab54aeb79368c0"`
[INFO] [stdout] 1e174e27428103dd5abe9b071bc5377b3fd74a1717fb54efe2ab54aeb79368c0