[INFO] fetching crate mcs 0.1.1...
[INFO] checking mcs-0.1.1 against try#879b8cb7dc2ad9102994457e73cf78d124926ea5 for pr-73084
[INFO] extracting crate mcs 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mcs 0.1.1 on toolchain 879b8cb7dc2ad9102994457e73cf78d124926ea5
[INFO] running `"/workspace/cargo-home/bin/cargo" "+879b8cb7dc2ad9102994457e73cf78d124926ea5" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mcs 0.1.1
[INFO] finished tweaking crates.io crate mcs 0.1.1
[INFO] tweaked toml for crates.io crate mcs 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+879b8cb7dc2ad9102994457e73cf78d124926ea5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+879b8cb7dc2ad9102994457e73cf78d124926ea5" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+879b8cb7dc2ad9102994457e73cf78d124926ea5" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] edcceea2e9e7efa542ff909e17a06e42094a503ca19344fcd4f531d09dcc7b75
[INFO] running `"docker" "start" "-a" "edcceea2e9e7efa542ff909e17a06e42094a503ca19344fcd4f531d09dcc7b75"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking mcs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stderr]  --> src/pause.rs:6:14
[INFO] [stderr]   |
[INFO] [stderr] 6 |     unsafe { asm!("pause" :::: "volatile"); }
[INFO] [stderr]   |              ----^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |              |
[INFO] [stderr]   |              help: replace with: `llvm_asm!`
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider migrating to the new asm! syntax specified in RFC 2873
[INFO] [stderr]   = note: alternatively, switch to llvm_asm! to keep your code working as it is
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `mcs`.
[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 `"docker" "inspect" "edcceea2e9e7efa542ff909e17a06e42094a503ca19344fcd4f531d09dcc7b75"`
[INFO] running `"docker" "rm" "-f" "edcceea2e9e7efa542ff909e17a06e42094a503ca19344fcd4f531d09dcc7b75"`
[INFO] [stdout] edcceea2e9e7efa542ff909e17a06e42094a503ca19344fcd4f531d09dcc7b75