[INFO] fetching crate dyn-lock 0.1.0...
[INFO] documenting dyn-lock-0.1.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate dyn-lock 0.1.0 into /workspace/builds/worker-75/source
[INFO] validating manifest of crates.io crate dyn-lock 0.1.0 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-75/source/rust-toolchain
[INFO] started tweaking crates.io crate dyn-lock 0.1.0
[INFO] finished tweaking crates.io crate dyn-lock 0.1.0
[INFO] tweaked toml for crates.io crate dyn-lock 0.1.0 written to /workspace/builds/worker-75/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded phf v0.8.0
[INFO] [stderr]   Downloaded includedir_codegen v0.6.0
[INFO] [stderr]   Downloaded phf_generator v0.8.0
[INFO] [stderr]   Downloaded phf_codegen v0.8.0
[INFO] [stderr]   Downloaded rand_pcg v0.2.1
[INFO] [stderr]   Downloaded faster-hex v0.4.1
[INFO] [stderr]   Downloaded blake2b-rs v0.2.0
[INFO] [stderr]   Downloaded buddy-alloc v0.4.1
[INFO] [stderr]   Downloaded phf_shared v0.8.0
[INFO] [stderr]   Downloaded siphasher v0.3.10
[INFO] [stderr]   Downloaded molecule v0.6.1
[INFO] [stderr]   Downloaded includedir v0.6.0
[INFO] [stderr]   Downloaded ckb-standalone-types v0.0.1-pre.1
[INFO] [stderr]   Downloaded ckb-std v0.7.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b622645d1d8ee5f4f5552a79afd6187e4c15729c1b0d02e1bf176fa3ac51c05e
[INFO] running `Command { std: "docker" "start" "-a" "b622645d1d8ee5f4f5552a79afd6187e4c15729c1b0d02e1bf176fa3ac51c05e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b622645d1d8ee5f4f5552a79afd6187e4c15729c1b0d02e1bf176fa3ac51c05e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b622645d1d8ee5f4f5552a79afd6187e4c15729c1b0d02e1bf176fa3ac51c05e", kill_on_drop: false }`
[INFO] [stdout] b622645d1d8ee5f4f5552a79afd6187e4c15729c1b0d02e1bf176fa3ac51c05e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef13cb446b8eb575fdae5c58f7bc0f71d3841354225bd724be05b3045ca65b83
[INFO] running `Command { std: "docker" "start" "-a" "ef13cb446b8eb575fdae5c58f7bc0f71d3841354225bd724be05b3045ca65b83", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling dyn-lock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking buddy-alloc v0.4.1
[INFO] [stderr]     Checking molecule v0.6.1
[INFO] [stderr]     Checking ckb-standalone-types v0.0.1-pre.1
[INFO] [stderr]    Compiling ckb-std v0.7.4
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ckb-std-0.7.4/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]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ckb-std-0.7.4/src/lib.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(llvm_asm)]
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ckb-std` due to 3 previous errors
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[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] 
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "ef13cb446b8eb575fdae5c58f7bc0f71d3841354225bd724be05b3045ca65b83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef13cb446b8eb575fdae5c58f7bc0f71d3841354225bd724be05b3045ca65b83", kill_on_drop: false }`
[INFO] [stdout] ef13cb446b8eb575fdae5c58f7bc0f71d3841354225bd724be05b3045ca65b83