[INFO] cloning repository https://github.com/PhantomOS/PhantomOS-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PhantomOS/PhantomOS-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPhantomOS%2FPhantomOS-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPhantomOS%2FPhantomOS-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ba3709d8a62fc03236594d2412f462c4ed94983
[INFO] testing PhantomOS/PhantomOS-Rust against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPhantomOS%2FPhantomOS-Rust" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PhantomOS/PhantomOS-Rust on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-12/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/PhantomOS/PhantomOS-Rust
[INFO] finished tweaking git repo https://github.com/PhantomOS/PhantomOS-Rust
[INFO] tweaked toml for git repo https://github.com/PhantomOS/PhantomOS-Rust written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/PhantomOS/PhantomOS-Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/Andy-Python-Programmer/stivale`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded debug-helper v0.3.13
[INFO] [stderr]   Downloaded crc-any v2.4.2
[INFO] [stderr]   Downloaded fake-enum v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56e598a67d7daed4994e8e28b065057a144e50872d55146501f6b2cc4bd2c19d
[INFO] running `Command { std: "docker" "start" "-a" "56e598a67d7daed4994e8e28b065057a144e50872d55146501f6b2cc4bd2c19d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56e598a67d7daed4994e8e28b065057a144e50872d55146501f6b2cc4bd2c19d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56e598a67d7daed4994e8e28b065057a144e50872d55146501f6b2cc4bd2c19d", kill_on_drop: false }`
[INFO] [stdout] 56e598a67d7daed4994e8e28b065057a144e50872d55146501f6b2cc4bd2c19d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8c900e88ccab1011cd2bf322ad4d8b580c5fb2e52395cc3f35283fcf69af2c0
[INFO] running `Command { std: "docker" "start" "-a" "e8c900e88ccab1011cd2bf322ad4d8b580c5fb2e52395cc3f35283fcf69af2c0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling std v0.1.0 (/opt/rustwide/workdir/phantomos-kernel-std)
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling debug-helper v0.3.13
[INFO] [stderr]    Compiling phantomos-init v0.1.0 (/opt/rustwide/workdir/phantomos-init)
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]    Compiling fake-enum v0.1.4
[INFO] [stderr]    Compiling quote v1.0.16
[INFO] [stderr]    Compiling crc-any v2.4.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> phantomos-kernel-std/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(allocator_api)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `std` 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" "e8c900e88ccab1011cd2bf322ad4d8b580c5fb2e52395cc3f35283fcf69af2c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8c900e88ccab1011cd2bf322ad4d8b580c5fb2e52395cc3f35283fcf69af2c0", kill_on_drop: false }`
[INFO] [stdout] e8c900e88ccab1011cd2bf322ad4d8b580c5fb2e52395cc3f35283fcf69af2c0