[INFO] cloning repository https://github.com/CollinValley/RustOS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CollinValley/RustOS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCollinValley%2FRustOS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCollinValley%2FRustOS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 921fd29c001079abadf1ce49bc2e004d4f1ead42
[INFO] checking CollinValley/RustOS against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCollinValley%2FRustOS" "/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/CollinValley/RustOS on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CollinValley/RustOS
[INFO] finished tweaking git repo https://github.com/CollinValley/RustOS
[INFO] tweaked toml for git repo https://github.com/CollinValley/RustOS written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/CollinValley/RustOS already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ux v0.1.2
[INFO] [stderr]   Downloaded bootloader_precompiled v0.2.0
[INFO] [stderr]   Downloaded array-init v0.0.3
[INFO] [stderr]   Downloaded volatile v0.2.4
[INFO] [stderr]   Downloaded spin v0.4.9
[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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be575eaad6b2ea0487485e0171e08e33ef98fb75ccad89ad7ff11e235cb6b855
[INFO] running `Command { std: "docker" "start" "-a" "be575eaad6b2ea0487485e0171e08e33ef98fb75ccad89ad7ff11e235cb6b855", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be575eaad6b2ea0487485e0171e08e33ef98fb75ccad89ad7ff11e235cb6b855", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be575eaad6b2ea0487485e0171e08e33ef98fb75ccad89ad7ff11e235cb6b855", kill_on_drop: false }`
[INFO] [stdout] be575eaad6b2ea0487485e0171e08e33ef98fb75ccad89ad7ff11e235cb6b855
[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=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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3baa7a56f839a23e7dc8bddbd69e5d5c1227195e2eb3a129184f135f34b426d
[INFO] running `Command { std: "docker" "start" "-a" "f3baa7a56f839a23e7dc8bddbd69e5d5c1227195e2eb3a129184f135f34b426d", kill_on_drop: false }`
[INFO] [stderr]     Checking os_bootinfo v0.2.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking ux v0.1.2
[INFO] [stderr]     Checking bit_field v0.9.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking spin v0.4.9
[INFO] [stderr]     Checking volatile v0.2.4
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.9/src/lib.rs:6:43
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![cfg_attr(feature = "const_fn", 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] [stderr]     Checking array-init v0.0.3
[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 `spin`
[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 `Command { std: "docker" "inspect" "f3baa7a56f839a23e7dc8bddbd69e5d5c1227195e2eb3a129184f135f34b426d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3baa7a56f839a23e7dc8bddbd69e5d5c1227195e2eb3a129184f135f34b426d", kill_on_drop: false }`
[INFO] [stdout] f3baa7a56f839a23e7dc8bddbd69e5d5c1227195e2eb3a129184f135f34b426d