[INFO] fetching crate polyval 0.4.0...
[INFO] documenting polyval-0.4.0 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate polyval 0.4.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate polyval 0.4.0 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 polyval 0.4.0
[INFO] finished tweaking crates.io crate polyval 0.4.0
[INFO] tweaked toml for crates.io crate polyval 0.4.0 written to /workspace/builds/worker-6/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 3d1eadf99a88fb43b0b626caa68d229358426de3af1213d2fc308af63657fe5e
[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" "3d1eadf99a88fb43b0b626caa68d229358426de3af1213d2fc308af63657fe5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d1eadf99a88fb43b0b626caa68d229358426de3af1213d2fc308af63657fe5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d1eadf99a88fb43b0b626caa68d229358426de3af1213d2fc308af63657fe5e", kill_on_drop: false }`
[INFO] [stdout] 3d1eadf99a88fb43b0b626caa68d229358426de3af1213d2fc308af63657fe5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9d2d6d663da98e95d406b3df6caa0da8d52aee2c11263d55b3fe8612553ea4d2
[INFO] running `Command { std: "docker" "start" "-a" "9d2d6d663da98e95d406b3df6caa0da8d52aee2c11263d55b3fe8612553ea4d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking subtle v2.2.3
[INFO] [stderr]    Compiling generic-array v0.14.2
[INFO] [stderr]     Checking universal-hash v0.4.0
[INFO] [stderr]  Documenting polyval v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[X]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/field/u32_soft.rs:18:69
[INFO] [stdout]    |
[INFO] [stdout] 18 | //! is swapped with bit 31, bit 1 with bit 30, and so on). In GF(2)[X],
[INFO] [stdout]    |                                                                     ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[X]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/field/u32_soft.rs:189:29
[INFO] [stdout]     |
[INFO] [stdout] 189 | /// Multiplication in GF(2)[X], truncated to the low 32-bits, with “holes”
[INFO] [stdout]     |                             ^ cannot be resolved, ignoring
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[X]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/field/u64_soft.rs:114:29
[INFO] [stdout]     |
[INFO] [stdout] 114 | /// Multiplication in GF(2)[X], truncated to the low 64-bits, with “holes”
[INFO] [stdout]     |                             ^ cannot be resolved, ignoring
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.27s
[INFO] running `Command { std: "docker" "inspect" "9d2d6d663da98e95d406b3df6caa0da8d52aee2c11263d55b3fe8612553ea4d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d2d6d663da98e95d406b3df6caa0da8d52aee2c11263d55b3fe8612553ea4d2", kill_on_drop: false }`
[INFO] [stdout] 9d2d6d663da98e95d406b3df6caa0da8d52aee2c11263d55b3fe8612553ea4d2