[INFO] fetching crate ckb-std 0.9.0...
[INFO] checking ckb-std-0.9.0 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate ckb-std 0.9.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate ckb-std 0.9.0 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0/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-0/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" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0a91fb7e72543a7b7583f9ec1bc63055cbc69e742ae8838d014aca5d82f703e8
[INFO] running `Command { std: "docker" "start" "-a" "0a91fb7e72543a7b7583f9ec1bc63055cbc69e742ae8838d014aca5d82f703e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a91fb7e72543a7b7583f9ec1bc63055cbc69e742ae8838d014aca5d82f703e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a91fb7e72543a7b7583f9ec1bc63055cbc69e742ae8838d014aca5d82f703e8", kill_on_drop: false }`
[INFO] [stdout] 0a91fb7e72543a7b7583f9ec1bc63055cbc69e742ae8838d014aca5d82f703e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f081c2c0bf79b93f7b4e9b0d9a1f8b31ce513a3686967d9d119fa6d9b46c9476
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f081c2c0bf79b93f7b4e9b0d9a1f8b31ce513a3686967d9d119fa6d9b46c9476", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking cty v0.2.1
[INFO] [stderr]     Checking buddy-alloc v0.4.1
[INFO] [stderr]     Checking molecule v0.7.1
[INFO] [stderr]    Compiling ckb-std v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ckb-standalone-types v0.1.2
[INFO] [stderr]     Checking cstr_core v0.2.4
[INFO] [stdout] error[E0658]: sym operands for inline assembly are unstable
[INFO] [stdout]   --> examples/main.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | entry!(main);
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #72016 <https://github.com/rust-lang/rust/issues/72016> for more information
[INFO] [stdout]    = help: add `#![feature(asm_sym)]` to the crate attributes to enable
[INFO] [stdout]    = note: this error originates in the macro `entry` (in Nightly builds, run with -Z macro-backtrace for more info)
[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 E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ckb-std` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f081c2c0bf79b93f7b4e9b0d9a1f8b31ce513a3686967d9d119fa6d9b46c9476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f081c2c0bf79b93f7b4e9b0d9a1f8b31ce513a3686967d9d119fa6d9b46c9476", kill_on_drop: false }`
[INFO] [stdout] f081c2c0bf79b93f7b4e9b0d9a1f8b31ce513a3686967d9d119fa6d9b46c9476