[INFO] fetching crate ruspiro-mailbox 0.4.0...
[INFO] checking ruspiro-mailbox-0.4.0 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate ruspiro-mailbox 0.4.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate ruspiro-mailbox 0.4.0 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ruspiro-mailbox 0.4.0
[INFO] finished tweaking crates.io crate ruspiro-mailbox 0.4.0
[INFO] tweaked toml for crates.io crate ruspiro-mailbox 0.4.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11cc12a1b2d173d8e0626bfe8852ce559e7db2e92c67eb7d8efe0a5f290a64c9
[INFO] running `Command { std: "docker" "start" "-a" "11cc12a1b2d173d8e0626bfe8852ce559e7db2e92c67eb7d8efe0a5f290a64c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11cc12a1b2d173d8e0626bfe8852ce559e7db2e92c67eb7d8efe0a5f290a64c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11cc12a1b2d173d8e0626bfe8852ce559e7db2e92c67eb7d8efe0a5f290a64c9", kill_on_drop: false }`
[INFO] [stdout] 11cc12a1b2d173d8e0626bfe8852ce559e7db2e92c67eb7d8efe0a5f290a64c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bacb82c2efc4ce555c4f84e99af72cf6c4ae9784dd480b39c9cbfe94b0289f1e
[INFO] running `Command { std: "docker" "start" "-a" "bacb82c2efc4ce555c4f84e99af72cf6c4ae9784dd480b39c9cbfe94b0289f1e", kill_on_drop: false }`
[INFO] [stderr]     Checking ruspiro-register v0.5.4
[INFO] [stderr]     Checking ruspiro-error v0.1.0
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling ruspiro-cache v0.4.0
[INFO] [stderr]     Checking ruspiro-arch-aarch64 v0.1.4
[INFO] [stderr]     Checking ruspiro-mmio-register v0.1.1
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ruspiro-arch-aarch64-0.1.4/src/lib.rs:10:22
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![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[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ruspiro-mmio-register-0.1.1/src/lib.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![feature(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 `ruspiro-mmio-register`
[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] [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: build failed
[INFO] running `Command { std: "docker" "inspect" "bacb82c2efc4ce555c4f84e99af72cf6c4ae9784dd480b39c9cbfe94b0289f1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bacb82c2efc4ce555c4f84e99af72cf6c4ae9784dd480b39c9cbfe94b0289f1e", kill_on_drop: false }`
[INFO] [stdout] bacb82c2efc4ce555c4f84e99af72cf6c4ae9784dd480b39c9cbfe94b0289f1e