[INFO] fetching crate ckb-std 0.9.0...
[INFO] testing ckb-std-0.9.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate ckb-std 0.9.0 into /workspace/builds/worker-38/source
[INFO] validating manifest of crates.io crate ckb-std 0.9.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-38/source/rust-toolchain
[INFO] started tweaking crates.io crate ckb-std 0.9.0
[INFO] finished tweaking crates.io crate ckb-std 0.9.0
[INFO] tweaked toml for crates.io crate ckb-std 0.9.0 written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] crate crates.io crate ckb-std 0.9.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ab0e249ba48ee75c36fd44e7c5debabce5eb0d79d6b2f18ae5bdea94ea809c3
[INFO] running `Command { std: "docker" "start" "-a" "2ab0e249ba48ee75c36fd44e7c5debabce5eb0d79d6b2f18ae5bdea94ea809c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ab0e249ba48ee75c36fd44e7c5debabce5eb0d79d6b2f18ae5bdea94ea809c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ab0e249ba48ee75c36fd44e7c5debabce5eb0d79d6b2f18ae5bdea94ea809c3", kill_on_drop: false }`
[INFO] [stdout] 2ab0e249ba48ee75c36fd44e7c5debabce5eb0d79d6b2f18ae5bdea94ea809c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a586e8af42f4c4e6a9c2c7137a2c82c32d6f1506781c6851ec65e863a88a257f
[INFO] running `Command { std: "docker" "start" "-a" "a586e8af42f4c4e6a9c2c7137a2c82c32d6f1506781c6851ec65e863a88a257f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling cty v0.2.1
[INFO] [stderr]    Compiling buddy-alloc v0.4.1
[INFO] [stderr]    Compiling molecule v0.7.1
[INFO] [stderr]    Compiling ckb-standalone-types v0.1.2
[INFO] [stderr]    Compiling ckb-std v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling cstr_core v0.2.4
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(llvm_asm)]
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `llvm_asm`
[INFO] [stdout]   --> src/lib.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(llvm_asm)]
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ckb-std` due to 3 previous errors
[INFO] [stdout] Some errors have detailed explanations: E0554, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a586e8af42f4c4e6a9c2c7137a2c82c32d6f1506781c6851ec65e863a88a257f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a586e8af42f4c4e6a9c2c7137a2c82c32d6f1506781c6851ec65e863a88a257f", kill_on_drop: false }`
[INFO] [stdout] a586e8af42f4c4e6a9c2c7137a2c82c32d6f1506781c6851ec65e863a88a257f