[INFO] cloning repository https://github.com/1000teslas/blog_os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/1000teslas/blog_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1000teslas%2Fblog_os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1000teslas%2Fblog_os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 67366e25e892b8eba6ec7e7142c7fa0cee6b47f0
[INFO] testing 1000teslas/blog_os against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1000teslas%2Fblog_os" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/1000teslas/blog_os on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/1000teslas/blog_os
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/1000teslas/blog_os
[INFO] tweaked toml for git repo https://github.com/1000teslas/blog_os written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/1000teslas/blog_os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c87ba2f35abbefc89c1186170d87bdc6049cae58fc6c09ab5ecc50c238a396f
[INFO] running `Command { std: "docker" "start" "-a" "7c87ba2f35abbefc89c1186170d87bdc6049cae58fc6c09ab5ecc50c238a396f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c87ba2f35abbefc89c1186170d87bdc6049cae58fc6c09ab5ecc50c238a396f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c87ba2f35abbefc89c1186170d87bdc6049cae58fc6c09ab5ecc50c238a396f", kill_on_drop: false }`
[INFO] [stdout] 7c87ba2f35abbefc89c1186170d87bdc6049cae58fc6c09ab5ecc50c238a396f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e51dcf9335711735572e17f19e29d52f2cf51258dc5d2053c43dac724252fb6
[INFO] running `Command { std: "docker" "start" "-a" "3e51dcf9335711735572e17f19e29d52f2cf51258dc5d2053c43dac724252fb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling x86_64 v0.12.3
[INFO] [stderr]    Compiling bit_field v0.9.0
[INFO] [stderr]    Compiling bootloader v0.9.11
[INFO] [stderr]    Compiling cpuio v0.3.0
[INFO] [stderr]    Compiling spin v0.7.0
[INFO] [stderr]    Compiling volatile v0.2.7
[INFO] [stderr]    Compiling pc-keyboard v0.5.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[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" "3e51dcf9335711735572e17f19e29d52f2cf51258dc5d2053c43dac724252fb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e51dcf9335711735572e17f19e29d52f2cf51258dc5d2053c43dac724252fb6", kill_on_drop: false }`
[INFO] [stdout] 3e51dcf9335711735572e17f19e29d52f2cf51258dc5d2053c43dac724252fb6