[INFO] crate ramp-primes 0.4.1 is already in cache
[INFO] testing ramp-primes-0.4.1 against 1.45.2 for beta-1.46-1
[INFO] extracting crate ramp-primes 0.4.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ramp-primes 0.4.1 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ramp-primes 0.4.1
[INFO] finished tweaking crates.io crate ramp-primes 0.4.1
[INFO] tweaked toml for crates.io crate ramp-primes 0.4.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06645ede1f7d881c3a7821284563830d2ff260ac29e37887935994ce99363ff6
[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" "06645ede1f7d881c3a7821284563830d2ff260ac29e37887935994ce99363ff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06645ede1f7d881c3a7821284563830d2ff260ac29e37887935994ce99363ff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06645ede1f7d881c3a7821284563830d2ff260ac29e37887935994ce99363ff6", kill_on_drop: false }`
[INFO] [stdout] 06645ede1f7d881c3a7821284563830d2ff260ac29e37887935994ce99363ff6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc4893d8aedc4f866aba861db547f78cab4514ffc8167a86e3d5b8c8d80fc78d
[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" "bc4893d8aedc4f866aba861db547f78cab4514ffc8167a86e3d5b8c8d80fc78d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-cfg v0.2.0
[INFO] [stderr]    Compiling ieee754 v0.2.6
[INFO] [stderr]    Compiling ramp v0.5.8
[INFO] [stdout] error: expected one of `const`, `in`, `inlateout`, `inout`, `lateout`, `options`, `out`, or `sym`, found `"adc {1}, {bh}"`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.5.8/src/ll/limb.rs:559:21
[INFO] [stdout]     |
[INFO] [stdout] 558 |                     "add {0}, {bl}", // adds bl to al and stores in low
[INFO] [stdout]     |                                     - expected one of 8 possible tokens
[INFO] [stdout] 559 |                     "adc {1}, {bh}", // adds bh to ah with carry and stores in high
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `const`, `in`, `inlateout`, `inout`, `lateout`, `options`, `out`, or `sym`, found `"sbb {1}, {bh}"`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.5.8/src/ll/limb.rs:608:21
[INFO] [stdout]     |
[INFO] [stdout] 607 |                     "sub {0}, {bl}", // subtracts bl from al and stores in low
[INFO] [stdout]     |                                     - expected one of 8 possible tokens
[INFO] [stdout] 608 |                     "sbb {1}, {bh}", // subtracts bh from ah with carry and stores in high
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.5.8/src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(core_intrinsics, asm, allocator_api)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.5.8/src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(step_trait, step_trait_ext, ptr_internals, raw_vec_internals)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 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 `ramp`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "bc4893d8aedc4f866aba861db547f78cab4514ffc8167a86e3d5b8c8d80fc78d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc4893d8aedc4f866aba861db547f78cab4514ffc8167a86e3d5b8c8d80fc78d", kill_on_drop: false }`
[INFO] [stdout] bc4893d8aedc4f866aba861db547f78cab4514ffc8167a86e3d5b8c8d80fc78d