[INFO] fetching crate ckb-contract-std 0.1.5...
[INFO] documenting ckb-contract-std-0.1.5 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate ckb-contract-std 0.1.5 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate ckb-contract-std 0.1.5 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ckb-contract-std 0.1.5
[INFO] finished tweaking crates.io crate ckb-contract-std 0.1.5
[INFO] tweaked toml for crates.io crate ckb-contract-std 0.1.5 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate ckb-contract-std 0.1.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded buddy-alloc v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de1f57ef6f515a1e9b22568271df1a12f222363dd9b75c96ed6fdb8806e52e01
[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" "de1f57ef6f515a1e9b22568271df1a12f222363dd9b75c96ed6fdb8806e52e01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de1f57ef6f515a1e9b22568271df1a12f222363dd9b75c96ed6fdb8806e52e01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de1f57ef6f515a1e9b22568271df1a12f222363dd9b75c96ed6fdb8806e52e01", kill_on_drop: false }`
[INFO] [stdout] de1f57ef6f515a1e9b22568271df1a12f222363dd9b75c96ed6fdb8806e52e01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "RUSTDOCFLAGS=--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad95658aea5756e03887af2a7a59a036f0035e0bc63a3fd29a9607a44e6b48e1
[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" "ad95658aea5756e03887af2a7a59a036f0035e0bc63a3fd29a9607a44e6b48e1", kill_on_drop: false }`
[INFO] [stderr]     Checking buddy-alloc v0.2.0
[INFO] [stderr]  Documenting ckb-contract-std v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]   --> src/syscalls.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         asm!("ecall" : "+r"(a0):"r"(a1) "r"(a2) "r"(a3) "r"(a4) "r"(a5) "r"(a6) "r"(syscall_num)::"volatile");
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: replace with: `llvm_asm!`
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider migrating to the new asm! syntax specified in RFC 2873
[INFO] [stdout]    = note: alternatively, switch to llvm_asm! to keep your code working as it is
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]   --> src/syscalls.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         asm!("fence" :::"memory":"volatile");
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: replace with: `llvm_asm!`
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider migrating to the new asm! syntax specified in RFC 2873
[INFO] [stdout]    = note: alternatively, switch to llvm_asm! to keep your code working as it is
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `ckb-contract-std`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name ckb_contract_std src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern buddy_alloc=/opt/rustwide/target/debug/deps/libbuddy_alloc-d2569b66ce09e63a.rmeta --cap-lints=warn --crate-version 0.1.5` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "ad95658aea5756e03887af2a7a59a036f0035e0bc63a3fd29a9607a44e6b48e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad95658aea5756e03887af2a7a59a036f0035e0bc63a3fd29a9607a44e6b48e1", kill_on_drop: false }`
[INFO] [stdout] ad95658aea5756e03887af2a7a59a036f0035e0bc63a3fd29a9607a44e6b48e1
