[INFO] fetching crate timing-shield 0.1.2...
[INFO] documenting timing-shield-0.1.2 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate timing-shield 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate timing-shield 0.1.2 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate timing-shield 0.1.2
[INFO] finished tweaking crates.io crate timing-shield 0.1.2
[INFO] tweaked toml for crates.io crate timing-shield 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 293e9896dc7db9522b09bb54b7ae60cd07038d93eb6cff5c6d178c62cc84c7ae
[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" "293e9896dc7db9522b09bb54b7ae60cd07038d93eb6cff5c6d178c62cc84c7ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "293e9896dc7db9522b09bb54b7ae60cd07038d93eb6cff5c6d178c62cc84c7ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "293e9896dc7db9522b09bb54b7ae60cd07038d93eb6cff5c6d178c62cc84c7ae", kill_on_drop: false }`
[INFO] [stdout] 293e9896dc7db9522b09bb54b7ae60cd07038d93eb6cff5c6d178c62cc84c7ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cad5138fdc0bc24515970463f251dc0f0ec2183effda4b388b821541ebda46bd
[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" "cad5138fdc0bc24515970463f251dc0f0ec2183effda4b388b821541ebda46bd", kill_on_drop: false }`
[INFO] [stderr]  Documenting timing-shield v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]    --> src/lib.rs:776:13
[INFO] [stdout]     |
[INFO] [stdout] 776 |             asm!("" : "=r"(output) : "0"(input_u8));
[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/lib.rs:802:13
[INFO] [stdout]     |
[INFO] [stdout] 802 |             asm!("" : "=r"(output) : "0"(self.0));
[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: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `timing-shield`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name timing_shield 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 --cap-lints=forbid` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "cad5138fdc0bc24515970463f251dc0f0ec2183effda4b388b821541ebda46bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cad5138fdc0bc24515970463f251dc0f0ec2183effda4b388b821541ebda46bd", kill_on_drop: false }`
[INFO] [stdout] cad5138fdc0bc24515970463f251dc0f0ec2183effda4b388b821541ebda46bd