[INFO] crate syscall-alt 0.0.14 is already in cache
[INFO] testing syscall-alt-0.0.14 against 1.44.0 for beta-1.45-1
[INFO] extracting crate syscall-alt 0.0.14 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate syscall-alt 0.0.14 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-alt 0.0.14
[INFO] finished tweaking crates.io crate syscall-alt 0.0.14
[INFO] tweaked toml for crates.io crate syscall-alt 0.0.14 written to /workspace/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 8a429118ab5754d5bdb816c611789123e93db75d530e62cad9eddcccb13c3428
[INFO] running `"docker" "start" "-a" "8a429118ab5754d5bdb816c611789123e93db75d530e62cad9eddcccb13c3428"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syscall-alt v0.0.14 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #![feature(asm)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | #![feature(associated_consts)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | #![feature(const_fn)]
[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/syscalls/linux_like/x86_64/syscall0.rs:9:2
[INFO] [stderr]   |
[INFO] [stderr] 9 |     asm!
[INFO] [stderr]   |     ^^^ help: replace the use of the deprecated item: `llvm_asm`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[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/syscalls/linux_like/x86_64/syscall1.rs:9:2
[INFO] [stderr]   |
[INFO] [stderr] 9 |     asm!
[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/syscalls/linux_like/x86_64/syscall2.rs:9:2
[INFO] [stderr]   |
[INFO] [stderr] 9 |     asm!
[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/syscalls/linux_like/x86_64/syscall3.rs:9:2
[INFO] [stderr]   |
[INFO] [stderr] 9 |     asm!
[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/syscalls/linux_like/x86_64/syscall4.rs:9:2
[INFO] [stderr]   |
[INFO] [stderr] 9 |     asm!
[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/syscalls/linux_like/x86_64/syscall5.rs:9:2
[INFO] [stderr]   |
[INFO] [stderr] 9 |     asm!
[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/syscalls/linux_like/x86_64/syscall6.rs:9:2
[INFO] [stderr]   |
[INFO] [stderr] 9 |     asm!
[INFO] [stderr]   |     ^^^ help: replace the use of the deprecated item: `llvm_asm`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors; 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `syscall-alt`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8a429118ab5754d5bdb816c611789123e93db75d530e62cad9eddcccb13c3428"`
[INFO] running `"docker" "rm" "-f" "8a429118ab5754d5bdb816c611789123e93db75d530e62cad9eddcccb13c3428"`
[INFO] [stdout] 8a429118ab5754d5bdb816c611789123e93db75d530e62cad9eddcccb13c3428