[INFO] fetching crate pluggable_interrupt_os 0.2.0...
[INFO] checking pluggable_interrupt_os-0.2.0 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate pluggable_interrupt_os 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate pluggable_interrupt_os 0.2.0 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0/source/.cargo/config.toml
[INFO] started tweaking crates.io crate pluggable_interrupt_os 0.2.0
[INFO] finished tweaking crates.io crate pluggable_interrupt_os 0.2.0
[INFO] tweaked toml for crates.io crate pluggable_interrupt_os 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate pluggable_interrupt_os 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 317b442237317976aece210697fc2950f32b8cf0ea9ff6b9b7b2020c7abdafa6
[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" "317b442237317976aece210697fc2950f32b8cf0ea9ff6b9b7b2020c7abdafa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "317b442237317976aece210697fc2950f32b8cf0ea9ff6b9b7b2020c7abdafa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "317b442237317976aece210697fc2950f32b8cf0ea9ff6b9b7b2020c7abdafa6", kill_on_drop: false }`
[INFO] [stdout] 317b442237317976aece210697fc2950f32b8cf0ea9ff6b9b7b2020c7abdafa6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9287139f5a4a45e476a9a55db9cf275cbe76ac4ac4c3d3c71efa1792ad677f83
[INFO] running `Command { std: "docker" "start" "-a" "9287139f5a4a45e476a9a55db9cf275cbe76ac4ac4c3d3c71efa1792ad677f83", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling x86_64 v0.12.4
[INFO] [stderr]    Compiling bootloader v0.9.11
[INFO] [stderr]     Checking bit_field v0.9.0
[INFO] [stderr]     Checking cpuio v0.3.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking pc-keyboard v0.5.1
[INFO] [stderr]     Checking volatile v0.2.7
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cpuio-0.3.0/src/lib.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(llvm_asm, const_fn)]
[INFO] [stdout]   |                      ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cpuio` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9287139f5a4a45e476a9a55db9cf275cbe76ac4ac4c3d3c71efa1792ad677f83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9287139f5a4a45e476a9a55db9cf275cbe76ac4ac4c3d3c71efa1792ad677f83", kill_on_drop: false }`
[INFO] [stdout] 9287139f5a4a45e476a9a55db9cf275cbe76ac4ac4c3d3c71efa1792ad677f83